Switchgear 61439

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Power Switchgear and Controlgear

Assemblies and Distribution Boards

according to EN 61439Author: Eur.-Phys. Dipl.-Ing. Alfred Mörx

www.eaton.eu

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Author's foreword

This specialist

publication

concerns

low

‐voltage

switchgear

and

controlgear

assemblies1,

which

are

defined in the current issue of the relevant recognised technical regulation ÖVE/ÖNORM EN 61439,

as:

Combination of one or more low ‐voltage switching devices together with associated control,

measuring, signalling, protective, regulating equipment, with all the internal electrical and

mechanical interconnections and structural parts.

The overriding objective is to explain to the fullest extent possible within this context, how low‐

voltage switchgear assemblies2 can (or must) be introduced legally and safely.

First and foremost the important connections for power switchgear and controlgear assemblies and

distribution boards intended to be operated by ordinary persons shall be presented. Detailed

requirements for assemblies for construction sites, assemblies for power distribution in public

networks and busbar trunking systems are not part of this specialist publication, even though they

have much in common.

And furthermore in this respect: This specialist publication has neither the intention nor the ability to

replace the comprehensive dedication to details of the series of standards ÖVE/ÖNORM EN 61439.

This publication is intended as a highly practical introduction to the subject. The aim is to convey

that,

based

on

this

introduction,

any

interested

party

can

develop

specific,

individual

involvement

in

this subject, from an overview down to any level of detail.

The European series of standards EN 61439 has been adopted in member states of the European

Union, but only applies as a national standard (i.e. as ÖVE/ÖNORM EN, DIN/VDE EN, BS EN, etc.).

Therefore, this publication refers to ÖVE/ÖNORM EN 61439 consequently. However, the technical

contents of EN 61439 are identical in all Member States of the European Union.

This publication went to press on 15 May 2014.

Eur.‐Phys. Dipl.‐Ing. Alfred Mörx

(*1958 in Vienna) Since 2001 owner and manager of diam‐consult, a licensed consulting

engineering office for physics with an emphasis on risk analysis and protection technology in

complex technical systems. He studied technical physics at the Technical University of Vienna. As

an expert in fundamental issues of electrical safety, for more than 25 years he has worked in

national, European and international working groups in the field of safer use of electricity.

Online: www.diamcons.com, email: [email protected]

1 Definition according to ÖVE/ÖNORM EN 61439‐1:2012‐07‐01, subclause 3.1.1 2 The terms "switchgear and controlgear assembly" and "low‐voltage switchgear and controlgear assembly" are used as

equivalent terms in this publication.

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@ower 7witchgear and ontrolgear Asse*blies and istribution 6oards according to EN "1#$%

@age + of "%

Table of contents

1 Conformity and recognised technical regulations ..................................................................... 5

11 Beneral observations 9

1+ 8ar*onised standards as a tool for satisf.ing re2uire*ents 9

1$ The series of standards ÖVE/ÖNO! EN "1#$% "

1# Electro*agnetic environ*ent <

19 ates for the application of ÖVE/ÖNO! EN "1#$%, part + and $ %

2 Manufacture of a switchgear and controlgear assembly ......................................................... 9

+1 !anufacturer and responsibilit. 1:

+11 Original *anufacturer 11

+1+ Asse*bl. *anufacturer 1+

+1$ 4ser 1$++ The ?9C1 points progra**e? 19

3 Design verification .............................................................................................................................. 16

$1 Beneral observations 1>

$11 hanges to switchgear and controlgear asse*blies 1%

$1+ Asse*bl. of switchgear and controlgear asse*blies with verified design 1%

$+ @rotection against electric shoc3 +:

$$ 7hort)circuit withstand strength +1

$# Verification of te*perature)rise ++

$#1 Beneral observations ++

$#+ 6asic assu*ptions for the li*iting values of the te*perature rise +$

$#$ @rinciples for calculating the te*perature curve in switchgear and controlgearasse*blies +9

$9 esign verification for power switchgear and controlgear asse*blies @7- +>

$" esign verification for distribution boards intended to be operated b. ordinar. persons6O- +<

$> esign verification and possible verification *ethods +%

!outine verification ............................................................................................................................ 31

#1 Beneral observations $1

#+ outine verification and possible verification *ethods $1

5 Mar"ing and documentation ........................................................................................................... 32

91 !ar3ing $+

9+ ocu*entation $$

6 Declaration of Conformity ................................................................................................................ 3

# $nterfaces characteristics ................................................................................................................. 35

>1 Beneral observations $9

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@age $ of "%

>+ ated iversit. 0actor 0- $"

>+1 0 in power switchgear and controlgear asse*blies @7- $>

>++ 0 in distribution boards intended to be operated b. ordinar. persons 6O- $>

>$ 5nterface characteristics ) Overview $>

># 5nterface characteristics for power switchgear and controlgear asse*blies @7- $<

>9 Notes for practical use of @7s #:

>91 Availabilit. of power switchgear and controlgear asse*blies #:

>9+ e2uire*ents related to accessibilit. for authorised persons during operation #1

>" 5nterface characteristics for distribution boards intended to be operated b. ordinar.persons 6O- #+

>> Notes for practical use of 6Os ##

>>1 escription of a 6O ##

>>+ ?7pecialities? for 6Os #9

% &re'uently as"ed 'uestions ............................................................................................................ #

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@age # of "%

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@age 9 of "%

1 Conformity and recognised technical regulations

1.1

eneral observations

How)voltage switchgear and controlgear asse*blies are electrical e2uip*ent This e2uip*ent is

subect to relevant European directives often referred to as ?E irectives?-, which are the absolute

prere2uisite for lawful circulation within the European 4nion

8owever, low)voltage switchgear and controlgear asse*blies consist in turn of electrical e2uip*ent

Therefore, the switchgear and controlgear asse*blies contain power switches, circuit brea3ers,

residual current circuit brea3ers, wires, ter*inals, etc Dhen tal3ing about e2uip*ent in relation to a

switchgear and controlgear and controlgear asse*bl., it *ust alwa.s be observed whether the

switchgear and controlgear and controlgear asse*bl. is addressed ?as a whole? or onl. as an

individual piece of electrical e2uip*ent that is part of the switchgear and controlgear and

controlgear asse*bl.

5n accordance with the Austrian Electrotechnical Act I+J electrical e2uip*ent used at a low)voltage

between 9: V and 1::: V A and three)phase A and between >9 V and 19:: V with a few

e(ceptions that need not be discussed further here- *ust *eet the re2uire*ents of the Low-voltage

Equipment Regulation I#J E4 ouncil irective concerning low)voltage I$J- Hi3ewise the

Electromagnetic Compatibility Ordinance I"J E4 E! irective I9J- and the provisions of the roduct

Liability !ct IJ-

0or electrical e2uip*ent ie also for low)voltage switchgear and controlgear asse*blies, the

manufacturer of the switchgear and controlgear assembly *ust perfor* a corresponding confor*it.

assess*ent procedure and issue an E eclaration of onfor*it.

Dith this declaration the assembly manufacturer confir*s that the switchgear and controlgear

asse*bl. *eets the Essential Requirements$ of all E4 directives relevant to the switchgear and

controlgear asse*bl.

1.2

/armonised standards as a tool for satisfying re'uirements

The series of standards ÖVE/ÖNO! EN "1#$% represents an i*portant tool for satisf.ing the

Essential e2uire*ents of low)voltage switchgear and controlgear asse*blies concerning the low)

voltage and E! directive-

This series of standards is part of the "armonised #tandards of the low)voltage and E! directiveThe technical content of the 8ar*onised 7tandards *ust *eet the essential re2uire*ents of the

relevant directives- 5f the 8ar*onised 7tandard has been published in the Official Kournal and the

$ The ter* Essential e2uire*ents describes an i*portant ele*ent for the legal circulation of productions within theEuropean 4nion The Essential Requirements are specified in the anne(es to the directives and contain ever.thingre2uired to achieve the obective of the directive @roducts *a. onl. be brought into circulation and put into service ifthe. satisf. the essential re2uire*ents Essential Requirements should offer and guarantee a high degree of protection

The. are based specific procedures associated with the product e g ph.sical and *echanical strength, fla**abilit.,che*ical, electrical or biological properties, h.giene, radioactivit., accurac.- or refer to the product and its perfor*ancee g provisions regarding *aterials, design, construction, *anufacturing process, instructions issued b. the

*anufacturer- or la. down the *ost i*portant protection obective e g using an illustrative list- Often it is also a

co*bination of the afore*entioned aspects Therefore, several irectives can appl. at the sa*e ti*e for a given product,as the Essential e2uire*ents of various directives *ust be applied at the sa*e ti*e in order to over all relevant publicinterests I+"J The ter* ?6asic e2uire*ents? is so*eti*es used instead of the ter* ?Essential e2uire*ents? 6oth

refer to the ter* ?Essential e2uire*entsL-

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@age " of "%

standard has been i*ple*ented on a national level, its co*pliance with the essential re2uire*ents is

presu*ed This therefore also applies for the series of standards ÖVE/ÖNO! EN "1#$%#

5f a low)voltage switchgear and controlgear asse*bl. *eets all re2uire*ents of the relevant clauses

of ÖVE/ÖNO! EN "1#$%, then the *anufacturer and also the user- can assu*e that the Essential

e2uire*ents of the low)voltage and E! directive have been adhered to This *eans that theswitchgear and controlgear asse*bl. *a. be legall. brought into circulation in the countries of the

European 4nion

1.3 -he series of standards 0,04!M 6139

@art 1 of ÖVE/ÖNO! EN "1#$% so*eti*es also ter*ed ?basic standard?- includes general

specifications, which are currentl.9 defined in clauses + to " the ?specific product standards?-

Designation / Issue date Title

ÖVE/ÖNO! EN "++:):1E*pt. enclosures for low)voltage switchgear and controlgear asse*blies M

Beneral re2uire*ents

5E/T "1#$%):&+:1$):#How voltage switchgear and controlgear asse*blies M @art :& Buidance to specif.ing asse*blies Ilanning $uideJ

ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1 How)voltage switchgear and controlgear asse*blies ) @art 1& Beneral rules

ÖVE/ÖNO! EN "1#$%)+&+:1+):>):1How)voltage switchgear and controlgear asse*blies ) @art +& @ower

switchgear and controlgear asse*blies @7"-

ÖVE/ÖNO! EN "1#$%)$&+:1$):"):1How)voltage switchgear and controlgear asse*blies ) @art $& istribution boards intended to be operated b. ordinar. persons 6O

>-

ÖVE/ÖNO! EN "1#$%)#&+:1$)1:):1How)voltage switchgear and controlgear asse*blies ) @art #& @articualrre2uire*ents for asse*blies for construction sites A7 6O Distribution Board intended to be operated b. Ordinar. persons

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@ower 7witchgear and

the structure and the t.pe of sa

ter*s TTA and @TTA are no long

Table 1)1 provides an overview

standards ÖVE/ÖNO! EN "1#

switchgear and controlgear asse

0igure 1)1 overview of the

5n addition to the individual clau

standard ÖVE/ÖNO! EN "++:

5E/T "1#$%):&+:1$):#

Therefore, EN "++:< is *ore sig

used to *anufacture a switchge

these cases there are si*plificati

according to ÖVE/ÖNO! EN "

The Technical eport 5E/T "1#

in English, contains i*portant fu

EN "1#$%, which should support

5n the application of ÖVE/ÖNO

recognised technical regulations

establish*ent of electrical low)v

corresponding clauses of EN "1#

ontrolgear Asse*blies and istribution 6oards according t

@age > of "%

fet.- anal.sis of confor*it. The outco*e of thi

r included in the series of standards ÖVE/ÖNO

of the current recognised technical regulations

% along with two further provisions- for the de

*blies 0igure 1)1provides a graphic overview

ecognised technical regulations ÖVE/ÖNO! EN "1#$%G v

ses of ÖVE/ÖNO! EN "1#$%,Table 1)1 include

&+:1+):>):1 and the internationall. applicable

ificant in practice, because in *an. cases e*pt

r and controlgear asse*bl., as these co*pl. wi

ons for establishing what's 3nown as the design

#$% see 7ection $ of this specialist publication-

$%):&+:1$):#, the original version of which is cu

nda*entals and also e(planations on the series

the planning process for switchgear and control

EN "1#$% it should be observed that there ar

in the individual *e*ber states of the Europea

oltage installations This can be found in the pre

$%

EN "1#$%

wor3 is that the

! EN "1#$%

f the series of

ign of low)voltage

rsion 1/+:1#

the har*onised

echnical eport

enclosures are

th this standard 5n

verification

rrentl. onl. available

of standards

gear asse*blies

nationall.

4nion for the

faces to the

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@age < of "%

5n Austria all references to 8 ":$"# and/or 5E ":$"# *ust be replaced b. references to ÖVE)EN 1

and/or ÖVE/ÖNO! E ):119

7witchgear and controlgear asse*blies which in *an. cases are *anufactured or asse*bled as one)

off productions and contain one or a few rando* co*binations of e2uip*ent- are not subect to

E! interference i**unit. and e*ission tests if the conditions below are present

The integral e2uip*ent has been designed for the environ*ent defined environ*ent A or

environ*ent 6- in accordance with the relevant E! product or generic standards

The internal installation and wiring *ust be perfor*ed in accordance with the e2uip*ent

*anufacturer's specifications la.out concerning *utual interference, shielded conductions,grounding, etc-

11 AttentionP Not to be confused with the ter* 6O T.pe A, which is a 6O designed to accept single pole devices

1+ AttentionP Not to be confused with the ter* 6O T.pe 6, which is a 6O designed to accept *ulti)pole and/or single pole

devices1$

57! bands Industrial, Scientific and Medical bands1#

o*itQ international spQcial des perturbations radioQlectri2ues 7pecial 5nternational o**ittee on adio 5nterferenceG 57@ 11 ) 5ndustrial, 7cientific and !edical 57!- adio)0re2uenc. E2uip*ent )) Electro*agnetic isturbanceharacteristics )) Hi*its and !ethods of !easure*ent

19 ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, Appendi( K

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1.5

Dates for the a**licThe application of har*onised sof E4 irectives is alwa.s relaterevision of an e(isting har*onisa particular ti*e and thus the st

included in the list of har*oniseEN "1#$% as ?successor standarfro* on)going observation of th

0igure 1)+ illustrates the introdue(pir. of the previousl. applicablose their evidence function forand/or +1$+:19

!anufacturers of power switchfro* 111+:1#1", *anufacturerno later than fro* ++$+:191>,and/or part $ eclarations of

be issued fro* these dates onw

Of course the corresponding cla

0igure 1)+ Ti*e lapse for the introdudow& late

2 Manufacture of a sThe basic idea when *anufactur

is to view it as electrical e2uip*

1"

0ro* this date confor*it. with the ecan no longer be presu*ed for EN ":

1> 0ro* this date confor*it. with the e

can no longer be presu*ed for EN ":


@age % of "%

ation of 0,04!M 6139 *ar andards as evidence of confor*it. with the Ess

to a specific *anufacturing period area- Thisd standard, the previous standard loses its ?veritus of a har*onised standard 5n *an. cases th

d standards, too This also applies for the seriess? of EN ":#$% The corresponding infor*ationpublications in the Official Kournal of the Europ

ction of the series of standards EN "1#$%, partsle EN ":#$%, parts 1, + and $ in Austria @arts 1,onfor*it. with essential re2uire*ents upon e(

ear and controlgear asse*blies *ust therefore lof distribution boards intended to be operatedased on the har*onised standards ÖVE/ÖNO

nfor*it. based on the relevant part of ÖVE/ÖN

rds

ses of ÖVE/ÖNO! EN "1#$% can be used at p

tion of the series of standards ÖVE/ÖNO! EN "1#$%, pa t date for withdrawal of conflicting national standards

itchgear and controlgear asseming an E4)directive)co*pliant switchgear and co

nt see also 7ection 11 of this specialist public

sential re2uire*ents of the low)voltage and E! directive$%, @arts 1 and +

sential re2uire*ents of the low)voltage and E! directive

$%, @art $

EN "1#$%

2 and 3ntial e2uire*entseans that after the

fication power? aftere revised standard is

f standardscan be obtainedean 4nion

, + and $ and/or the+ and $ of EN ":#$%ir. of $11:+:1#

aunch no later than b. ordinar. persons

EN "1#$%, part +,! EN "1#$% *ust

esent

ts 1, + and $ in AustriaG

lyntrolgear asse*bl.

tion- How)voltage

of the European 4nion

of the European 4nion

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@age 1: of "%

switchgear and controlgear asse*blies are therefore e2uip*ent1

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0igure +)1 E

5n order to discuss and deal with

perspective, specific ter*s with

ÖVE/ÖNO! EN "1#$%

2.1.1 4riginal manufacture

The original manufacturer 22 so

co*pan.+$- that has carried out

accordance with the relevant as

The original manufacturer is res

the design verification

To establish the design verificati

patterns or to parts of the switc

design satisfies the relevant part

This technical- verification canof the switchgear and controlge

verification testing

verification co*parison

verification assess*ent,

rules, including use of a

++

efinition according to ÖVE/ÖNO!+$

The recognised technical regulationsnecessaril. to a ?co*pan.? because n

appl. regardless of the legal for* of t


@age 11 of "%

(planation of the ?blac3 bo(? *odelsG idea e(tracted I%J

these facts *ore accuratel. fro* a technical an

assigned responsibilities are listed in the series o

r

eti*es also ter*ed system manufacturer - is th

the original design and associated verification of

e*bl. standard

onsible for verif.ing the design, for establishing

on, specific *ethods applied to switchgear and

gear and controlgear asse*bl. *ust technicall.

s of ÖVE/ÖNO! EN "1#$%

e perfor*ed in several wa.s depending on desir asse*bl.&

ith a tested reference design

ie confir*ation of the correct application of ca

propriate safet. *argins

EN "1#$%)1&+:1+):>):1, subclause $1:1ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1 onl. refer to ?organiaturall. the re2uire*ents for low)voltage switchgear and c

he original *anufacturer or asse*bl. *anufacturer

EN "1#$%

d organisational

f standards

e organisation or

an asse*bl. in

what's 3nown as

ontrolgear asse*bl.

prove that the

n and rated current

lculations and design

ation? and notontrolgear asse*blies

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@age 1+ of "%

7o*e specific verifications can be carried out in several of the wa.s *entioned+# e g short)circuit

withstand, te*perature)rise li*its- The *anufacturer is responsible for choosing the suitable

procedure for each individual design The results of all per*issible procedures appl. e2uall.

2.1.2 )ssembly manufacturer

The assembly manufacturer 25 *anufacturer of the switchgear and controlgear asse*bl.- is the

organisation or co*pan.- ta3ing the responsibilit. for the co*pleted asse*bl. after asse*bl.,

possibl. further adust*ents to the technical re2uire*ents for operation, etc-

The asse*bl. manufacturer *a. be but is not under an. obligation- a different organisation fro*

the original *anufacturer, eg a system builder or system integrator

0igure +)+ provides a sche*atic overview of the ter*s ?original *anufacturer? and ?asse*bl.

*anufacturerS of the switchgear and controlgear asse*bl. and the interaction of these

The low)voltage switchgear and controlgear asse*bl. can be supplied directl. b. the original*anufacturer s.ste* *anufacturer- to the user blue lettering in 0igure +)+-

Thus it assu*es responsibilit. for the entire switchgear and controlgear asse*bl. as original

*anufacturer and as asse*bl. *anufacturer 5n this case the design verification see 7ection $ of this

specialist publication- and routine verification see 7ection # of this specialist publication- are

established b. the original *anufacturer who in this case is identical to the asse*bl. *anufacturer-

The second option is that the original *anufacturer supplies individual parts ?s.ste* partsL- or

entire asse*blies e g inco*ing suppl. section and /or outgoing feeder panel with busbars and

circuit brea3er- to the asse*bl. *anufacturer together with instructions and design verification see

7ection $ of this specialist publication-

The asse*bl. *anufacturer then connects the individual ?s.ste* partsL according to the precise

instructions of the original *anufacturer, establishes the routine verification see 7ection # of this

specialist publication- and supplies the switchgear and controlgear asse*bl. to the user red

lettering in 0igure +)+-

The manufacturer of the switchgear and controlgear assembly is responsible for+"&

esinging the switchgear and controlgear asse*blies according to the dates agreed with the

user onfor*it. with E irectives-

o*pliance with the design verification and instructions of the original *anufacturer

The i*ple*entation of the routine verification

!ar3ing the switchgear and controlgear asse*bl.

5ndicating the characteristics of the interfaces see 7ections >$ to >" of this specialist

publication-

8andling, installation, operational and *aintenance instructions identifiabilit. of the

circuits, -

+# ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, Appendi( +9

efinition according to ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, subclause $1:++"

7ee also& ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, clause "

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0igure +)+ Original *anufacturer an

5f the asse*bl. *anufacturer ful

the original *anufacturer, the o

8owever, if the *anufacturer of

are not included in the verificati

and controlgear asse*bl. shall

The *anufacturer of the switch

for these changes and *ust ens

routine verification alone is insu

A re*inder& 6oth the original m

assembly in accordance with ÖV

of the e2uip*ent ?the co*pon

constructed eg the *anufactubrea3ers-

2.1.3 ser

5n general the ÖVE/ÖNO! EN

use and/or operate the switchg

The user, who can also be a plan

responsible for integrating the l

installation as instructed b. the

+> efinition according to ÖVE/ÖNO!


@age 1$ of "%

*anufacturer of the switchgear and controlgear asse*bl.":#$%)1G idea e(tracted I%J

l. *eets all re2uire*ents and instructions defin

iginal design verification does not need to be ca

the switchgear and controlgear asse*bl. carrie

ns of the original *anufacturer, the *anufactu

e dee*ed original manufacturer for these chan

ear and controlgear asse*bl. beco*es the origi

re the necessar. design- verifications 5n this ca

ficient

nufacturer and the manufacturer of the switchg

E/ÖNO! EN "1#$% *ust be distinguished fro

nt?- fro* which the switchgear and controlgea

rers of power switches, residual current circuit b

1#$% dee*s the User 27 to be an. part. that will

ar and controlgear asse*bl. or so*eone acting

ner designing the s.ste*, but also the s.ste* c

w)voltage switchgear and controlgear asse*bl.

s.ste* builder-, or si*pl. the future- operator

EN "1#$%)1&+:1+):>):1, subclause $1:$

EN "1#$%

in accordance with EN

ed and provided b.

rried out again

out changes that

er of the switchgear

es

nal *anufacturer

se e(ecution of the

ear and controlgear

the *anufacturer

asse*bl. is

rea3ers, circuit

specif., purchase,

on their behalf

nstructor

into an e(isting

of the switchgear

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@age 1# of "%

and controlgear asse*bl. is e(tre*el. i*portant in the *anufacture of low)voltage switchgear and

controlgear asse*blies

At the ti*e of ordering or advertising for tender, the user *ust indicate the recognised technical

regulations Istandards-J that *ust be adhered to for the corresponding switchgear and controlgear

asse*bl.

7uch indication eg for a power switchgear and controlgear asse*bl. would be+

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0igure +)$ o)operation, responsi

At this point it should be highlig

*anufacturer, *anufacturer of

these *ust be perceived as thre

5t is 2uite possible that the *an

switchgear and controlgear asse

the obligations of the original *

routine verification

7i*ilarl. it is also possible that t

*anufactures the switchgear an

of the switchgear and controlge

verification and issue the declar

2.2 -he 7581 *oints *r

An application)specific, s.ste*)s

asse*bl. is *anufactured, in si


@age 19 of "%

bilities and tas3s of original *anufacturer, *anufacturer ofcontrolgear asse*bl. and user illustrative-

ted once again that the functions presented he

he switchgear and controlgear asse*bl. and us

different co*panies or persons etc

facturer of a switchgear and controlgear asse*

*bl. without using ?s.ste* parts? 5n this case i

nufacture and establish the design verification i

e on)site electrical engineer as representative

d controlgear asse*bl.G naturall. this also conc

r asse*bl. *anufacturer to establish the desig

tion of confor*it.

gramme7

pecific ?proect)specific?- low)voltage switchge

ple ter*s, according to a ?9C1 point progra**

EN "1#$%

the switchgear and

e& original

r does i*pl. that

l. *anufacturers a

*ust also observe

n addition to the

f the user-

rns the obligations

and routine

r and controlgear

?

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!ore accuratel. this is a four)point co*prehensive process The necessit. to regard ?*ar3ing and

docu*entation? as an individual point co*es fro* the practical e(perience of the author e*e*ber

that the switchgear and controlgear asse*bl. docu*entation *ust be established before the

declaration of conformity is drawn up and before the switchgear and controlgear asse*bl. is

connected to the electrical s.ste*- This also applies for *ar3ing Table +)1provides an overview of

this process

oint Designation Tas!

1 Gahering

7pecification or selection of influences, operating conditions, interface

characteristics b. the manufacturer of t"e s#itc"gear and controlgear

assembly and the user using the for*s in

Appendi( 66 of EN "1#$%)+ for power switchgear and controlgear

asse*blies, etc

Appendi( AA of EN "1#$%)$ for distribution boards intended to be

operated b. ordinar. persons

! Planning

rafting of the low)voltage switchgear and controlgear asse*bl. b. the

assembly manufacturer according to the agree*ents *ade in point 1 The

design verifications of the parts used asse*blies, configured functional

units- are supplied b. the original manufacturer

5f no parts fro* an original *anufacturer are used, the manufacturer of the

switchgear and controlgear assembly *ust furnish the design verification

"Manufa#ure

$Pr%du#i%n&

The low)voltage switchgear and controlgear asse*bl. is *anufactured

?produced?- The instructions of the device *anufacturers devices such

as& residual current circuit brea3ers, contactors, !6s, - and the

infor*ation of the original *anufacturer *anufacturing instructions- are

adhered to

' (erifi#ai%nThe routine verification is established b. the assembly manufacturer for

each individual low)voltage switchgear and controlgear asse*bl.

)1Mar*ing and

d%#u+enai%n$$

!ar3ing the switchgear and controlgear asse*bl. and prepare

docu*entation

, De#lare #%nf%r+iy

@erfor* confor*it. assess*ent, the *anufacturer of the switchgear and

controlgear asse*bl. issues the E eclaration of onfor*it. and the E

*ar3 is affi(ed

Table +)1 ?9C1 point progra**e? for planning and ?production? of an application)specific low)voltage switchgear andcontrolgear asse*bl.

3 Design verification7witchgear and controlgear asse*blies *ust *eet design re2uire*ents These are defined in clauses

< and % of ÖVE/ÖNO! EN "1#$%

This section provides the i*portant e(planations regarding the character and content of the design

verification for switchgear and controlgear asse*blies @7s and 6Os-

The design verification *ust prove the fulfil*ent of these building and ?perfor*ance re2uire*ents?

$$ 7trictl. spea3ing this step is part of point 9 0or practical reasons ?so as not to forget?-, this obligation of the switchgear

and controlgear asse*bl. *anufacturer is provided in another point

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3.1

eneral observations

The obligation to establish the design verification concerns the original manufacturer and/or the

*anufacturer of the switchgear and controlgear asse*bl. in respect of an. changes that are not

included in the design verification of the original *anufacturer

5f no ?s.ste* parts? are used b. the original *anufacturer, the *anufacturer of the switchgear and

controlgear asse*bl. *ust establish the design verification

The design verification concerns the design and the perfor*ance of the switchgear and controlgear

asse*bl. as piece of e2uip*ent The i*ple*entation of the design verification establishes the

co*pliance of the switchgear and controlgear asse*bl. design or the switchgear and controlgear

asse*bl. s.ste* design with the re2uire*ents of the relevant clauses of the series of standards

ÖVE/ÖNO! EN "1#$%$#

Subclause in

$%E/$&'() E& *+,-.+Design verification 0ontents

1:+

#trength of materials and parts

5f an e*pt. enclosure according to EN "++:< is used and no changes have been *ade thatcould influence the suitabilit. of the enclosure, further inspection of the enclosure

according to 1:+ is not necessar.

1:$

5egree of protection of enclosures

5f an e*pt. enclosure according to EN "++:< is used, verification b. assess*ent *ust be

perfor*ed to ensure that ever. e(ternal change *ade does not affect the protectionclass 5n this case no further inspection is necessar.

1:# learances and creepage distances

1:9 @rotection against electric shoc3 and integrit. of protective circuits

1:" 5ncorporation of switching devices an co*ponents

1:> 5nternal electrical circuits and connections

1:< Ter*inals for e(ternal conductors

1:% ielectric properties

1:1: Verification of te*perature rise

1:11 7hort)circuit withstand strength

1:1+ Electro*agnetic co*patibilit.

1:1$ !echanical operation

Table $)1 ontent of the design verification, general overview according to ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1

The devices, ter*inals, contactors, circuit brea3ers, etc integrated in the switchgear and controlgear

asse*bl. that were tested b. the *anufacturer of these co*ponents in accordance with applicable

EN or 5E stipulations product standards- and satisf. these, do not have to be tested and verified-

again$9

$# 5f inspections according to the previousl. applicable series of standards EN ":#$% have alread. been perfor*ed on a

switchgear and controlgear asse*bl. and the results of the inspection *eet the re2uire*ents of the relevant clause of

EN "1#$%, it is not necessar. to repeat the verification of these re2uire*ents Avoidance of recent inspections regardingpre)inspected re2uire*ents according to the previousl. applicable series of standards-

$9 8owever, inspections of individual e2uip*ent according to relevant product standards are not an alternative to the

design verification for switchgear and controlgear assemblies This *eans that a switchgear and controlgear asse*bl.

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%. Sy+p%+

(erifi#ai%n %pi%ns aaila/le

Testingo*parison withreference design

Assess*ent

1

7trength of *aterials and parts

esistance to corrosion ) - -

@roperties of insulating *aterials

Ther*al stabilit. ) - -

esistance to abnor*al heat and fire dueto internal electrical effects

) - )

esistance to ultra)violet 4V- radiation ) - )

Hifting ) - -

!echanical i*pact ) - -

!ar3ing ) - -

+ egree of protection of enclosures ) - )$ learances ) - -

# reepage distances ) - -

9

@rotection against electric shoc3 and

integrit. of protective circuits

Effective continuit. between the e(posed

conductive parts of the asse*bl. and

the protective circuit

) - -

7hort)circuit withstand strength of theprotective circuit

) ) -

" 5ncorporation of switching devices andco*ponents - - )

>5nternal electrical circuits and

connections- - )

< Ter*inals for e(ternal conductors - - )

%

ielectric properties

@ower)fre2uenc. withstand voltage ) - -

7urge voltage strength ) - )

1: Te*perature)rise li*its ) ) )

11 7hort)circuit withstand strength ) ) -

1+ Electro*agnetic co*patibilit. E!- ) - )

1$ !echanical operation ) - -

) @er*issible as proofG - 5*per*issible as proof

Table $)+ esign verification M overview of possibilities for verif.ing individual features of a low)voltage switchgear andcontrolgear asse*bl. according to ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, Appendi( , Table 1

8owever, it is i*portant that these integral devices are installed in the switchgear and controlgear

asse*bl. precisely according to the *anufacturer's instructions 0or e(a*ple, if the switchgear and

controlgear installation instructions state that no other switchgears *a. be installed within 9 c* of

the device, the *anufacturer of the switchgear and controlgear asse*bl. *ust act accordingl.

constructed fro* individuall. tested e2uip*ent does not ?auto*aticall.? *eet the re2uire*ents of the series of

standards ÖVE/ÖNO! EN "1#$%

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The design verification *ust include the points indicated in Table $)1 All data used, calculations and

co*parisons *ade for the verification *ust be docu*ented in an verification report

0or the design of power switchgear and controlgear asse*blies and/or distribution boards intended

to be operated b. ordinar. persons, re2uire*ents for the building verification deviating fro* the

general re2uire*ents in Table $)1 shall also appl. see also 7ection $9 and $" of this specialistpublication-

5n contrast to the previousl. applicable series of standards ÖVE/ÖNO! EN ":#$%, in addition to

verification through testing other e2uivalent- verification *ethods are possible for specific

properties of switchgear and controlgear asse*blies in the series of standards ÖVE/ÖNO!

EN "1#$% The original *anufacturer can choose between several verification options, within the

scope specified in the corresponding clause of the standard 5f several *ethods are per*itted, the

original *anufacturer is responsible for selecting the appropriate *ethod

The verification procedures are&

verification testing

verification co*parison with a tested reference design

verification assess*ent, ie confir*ation of the correct application of calculations and design

rules, including use of appropriate safet. *argins

Table $)+$" provides an overview of options for verif.ing the individual features inspection,

co*parison with reference designs, assess*ent-

3.1.1 Changes to switchgear and controlgear assemblies

5f changes are *ade to a switchgear and controlgear asse*bl. or parts thereof that are subect to a

design verification, it *ust be established whether these changes i*pair the perfor*ance of the

switchgear and controlgear asse*bl. based on the specification of lause 1: @art 1 including the

additional re2uire*ents for the corresponding t.pe of switchgear and controlgear asse*bl. fro*

@art + or @art $- The design verification or one part thereof- *ust be perfor*ed on the a*ended

switchgear and controlgear asse*bl. if i*pair*ent is li3el.

3.1.2 )ssembly of switchgear and controlgear assemblies with verified design

5n practice it is often- the case that a switchgear and controlgear asse*bl. for which the original

*anufacturer established a design verification is asse*bled b. the *anufacturer of the switchgearand controlgear asse*bl. according to the asse*bl. instructions$> of the original *anufacturer

5n this case the original design verification does not need to be repeated The switchgear and

controlgear asse*bl. is asse*bled unchanged

8owever, if the *anufacturer of the switchgear and controlgear asse*bl. perfor*s changes that are

not included in the verifications of the original *anufacturer, the *anufacturer of the switchgear

and controlgear asse*bl. shall be dee*ed original *anufacturer for these changes The design

verification *ust be repeated for the changes and for an. features that are affected b. the change

$" ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, Appendi( , Table 1

$> The *anufacturing instructions of the original *anufacturer *ust be fully adhered toP

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5f the original *anufacturer of the switchgear and controlgear asse*bl. decides to perfor* the

verification of a specific feature using the ?testing? *ethod, then the tests *ust be perfor*ed on a

representative, new test speci*en of a switchgear and controlgear asse*bl.

The verification b. inspection eg short)circuit tests- can however i*pair the perfor*ance of a

switchgear and controlgear asse*bl.G ie these tests should not be perfor*ed on a switchgear andcontrolgear asse*bl. that is then scheduled to be put into operation$):1, subclause 1:9$ This largel. concerns verif.ing the rated

short)circuit withstand strength of the protective circuit etails should not be addressed an.further here-

8owever, the verification of the short)circuit withstand strength of the protective earth *a. be

o*itted under special circumstances

5f a standard)co*pliant, separate protective conductor$% is available, a short)circuit withstand test is

not necessar. for

$< The wish so*eti*es e(pressed b. users that the switchgear and controlgear asse*bl. that is actuall. installed shouldalso be full. tested in accordance with ÖVE/ÖNO! EN "1#$% is thus i*practicalP

$% @rotective conductor in accordance with ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, 7ubclause

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1 7witchgear and controlgear asse*blies with a rated short)ti*e withstand current strength#:

5cw- or a rated conditional short)circuit current#1 5cc- of *a(i*u* 1: 3A r*s

+ 7witchgear and controlgear asse*blies or circuits of switchgear and controlgear asse*blies,

protected b. current)li*ited devices, having a cut)off current not e(ceeding 1> 3A with the

*a(i*u* allowable prospective short)circuit current 5c-at the ter*inals of the inco*ing

circuit of the asse*bl.

$ Au(iliar. circuits of asse*blies intended to be connected to transfor*ers whose rated power

does not e(ceed 1: 3VA for a rated secondar. voltage of not less than 11: V, or

1," 3VA for a rated secondar. voltage less than 11: V,

and whose short)circuit i*pedance in both cases- is not less than # F

3.3 :hort;circuit withstand strength

Ever. switchgear and controlgear asse*bl. and/or its individual circuits are rated for particular

values of the short)circuit current#+ The verification of these rated values *ust be perfor*ed b. the

original *anufacturer of the switchgear and controlgear asse*bl. through co*parison with areference design or b. test#$

The details of perfor*ing the verification should not be addressed an. further here##G however, it

practice it is i*portant that is so*e cases si*ilar to verif.ing the short)circuit withstand strength of

the protective earth- the testing of the short)circuit withstand strength *a. be o*itted This is

particularl. i*portant for the verification of distribution boards intended to be operated b. ordinar.

persons, whereb. in *an. cases the conditions listed below are actuall. satisfied

The verification of the short)circuit withstand strength is not necessar. in the following cases&

1 0or switchgear and controlgear asse*blies with a rated short)circuit strength#9 5cw- or a

conditional rated short)circuit current#" 5cc- of *a(i*u* 1: 3A effective value

+ 0or switchgear and controlgear asse*blies or circuits of switchgear and controlgear

asse*blies, protected b. current)li*ited devices, whose conducting state current at the

highest per*itted uninfluenced short)circuit current 5cp- at the suppl. connections of the

switchgear and controlgear asse*bl. does not e(ceed 1> 3A

$ 0or au(iliar. circuits of switchgear and controlgear asse*blies that are intended to be

connected to transfor*ers of switchgear and controlgear asse*blies, whose rated output

is *a(i*u* 1: 3VA with a rated voltage on the secondar. side of at least 11: V or

1" 3VA with a rated voltage on the secondar. side of less than 11: Vand whose short)circuit i*pedance in both cases is at least # F

The corresponding data for the current)li*iting devices fuses, circuit brea3ers, residual current

circuit brea3ers, - is available in the data sheets provided b. the *anufacturers of these devices

#: ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, 7ubclause 9$#

#1 ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, 7ubclause 9$9

#+ A short)circuit current 5c- is an over)current that occurs with a short)circuit as a result of a fault or an incorrect defective-

connection to an electrical circuit#$

ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, 7ubclause 1:11## 7ee ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, 7ubclause 1:9#9

ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, 7ubclause 9$##"

ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, 7ubclause 9$9

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@age ++ of "%

The data sheets are part of the switchgear and controlgear asse*bl. docu*entation#>, which *ust

alwa.s be archived b. the original *anufacturer

3.

erification of tem*erature;rise

3..1

eneral observationsThe verification of tem1eraturerise is particularl. i*portant for di*ensioning a switchgear and

controlgear asse*bl., and/or also for the design verification

5n principle, the defined# This refers to the ?Technical ocu*entation? LTechnical 0ileS- according to the How)Voltage irective 4nder the How)

Voltage and E! irective the *anufacturer of the switchgear and controlgear asse*bl. is obligated to producetechnical docu*entation, which contains infor*ation that is re2uired to verif. the confor*it. of the product with thevalid re2uire*ents These docu*ents *ust be retained for at least ten .ears after product *anufacture This Technicalocu*entation is re2uired in cases where the relevant authorit. not the userP- re2uires the *anufacturer to provide

verification of co*pliance with the afore*entioned directives This *ust not be confused with the ocu*entationservice and operating instructions, -, which *ust be transferred to the user of the switchgear and controlgearasse*bl.

#< ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, subclause %+ and Table "

#% A flow chart intended as a tool for selecting the suitable verification *ethod is provided in ÖVE/ÖNO! EN "1#$%)

1&+:1+):>):1, Appendi( O, 0igure O1

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This allows the original *anufacturer to choose the *ost suitable *ethod for the switchgear and

controlgear asse*bl. or a part of the asse*bl., ta3ing into account the volu*es, design, fle(ibilit. of

the structure, current carr.ing capacit. and sie of the switchgear and controlgear asse*bl.

3..2 ):1, Table "

9: 5f the te*perature)rise li*its are changed to adapt to deviating a*bient te*peratures, it *a. be necessar. to change the

rated currents of all busbars, functional units, etc accordingl. The original *anufacturer *ust specif. the *easures thatare necessar. to ensure adherence with the te*perature)rise li*its 0or a*bient te*peratures up to 9: W, this can be

calculated on the assu*ption that the te*perature)rise of an. e2uip*ent is proportionate to the power loss generated inthis e2uip*ent There are devices whose power loss is largel. proportional to 5

+, devices with linear gradient to 5 and

others with largel. constant power loss regardless of 5 7ee also I$1J, page +9+f91

0 0ated Diversit. actor

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Embodiment of t"es#itc"gear and controlgear

assembly0alculation of results Evaluation of results

ated current suppl.current- not over "$: A

!a(i*u* ": 8

Onl. one singleco*part*ent

Deer+ining he e+peraure-rise within theswitchgear and controlgear asse*bl.&

alculate power loss of all circuits including the

internal conductor on the basis of the ratedcurrent

ower loss of conductors is deter*ined b.calculation

9+

ower loss of the switchgear and controlgearassembly is calculated b. adding up the power losses of the circuits total load current isli*ited to the rated current of the switchgear

and controlgear asse*bl.-

4se of infor*ation regarding the te*perature)

rise depending on the power loss generated inthe enclosure for the various per*issibleinstallation *ethods e g wall)*ounted-These can&

be provided b. the *anufacturer ofthe enclosure,

be deter*ined b.9$

inspection if active cooling

9# is used, in

accordance with the perfor*ancefeatures and installation criteria of thecooling device *anufacturer

The switchgear and controlgearasse*bl. is verified if the air

te*perature deter*ined using the

calculated power loss does not e(ceedthe per*issible air te*perature

defined b. the e2uip*ent*anufacturer during operation

0or switchgears or electrical

e2uip*ent in the *ain circuits, this*eans that the continuous load does

not e(ceed the per*issible load at the

calculated air te*perature and that allco*ponents are loaded with no *orethan ):1, Appendi( 8

9$ ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, subclause 1:1:#++

9#e g forced cool)down, internal air conditioner, heat e(changer, ,

99 ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, subclause 1:1:#+1c9"

ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, Appendi( 8 9>

ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, subclause 1:1:#$1c

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The scope of application of this approach is e(tre*el. li*ited9):1, subclause 1:1:#$1

": 5E/T ":):1, subclause 1:1:#+, 1:1:#$"#

8 9+< 7+&1%%>):1G see also I+1J"9

5*portant& 7ignificant local te*perature)rises in the switchgear and controlgear asse*bl., 3nown as hotspots, are not

ta3en into account in these considerations

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3e+peraure-rise #ure f%r en#l

The te*perature)rise curve is d

/1,:Yn- and Xt:9 /:,9Yn- 0igure

with the calculation *ethod acc

0igure $)1 Vertical te*perature distr

diagra*G Xt Te*

The te*perature)rise inside the

characteristic begins at ero 5n

3e+peraure-rise #ure f%r en#l

0igure $)+ Vertical te*perature distrdiagra*G Xt Te*


@age +" of "%

%sures 4ih an effe#ie #%%ling surfa#e Ae 5 16

fined in sufficient detail b. a straight line throug

)1- The corresponding points Xt1,: and Xt:,9 *us

rding to I+1J

ibution te*perature)rise curve-, effective cooling surface perature)rise in the enclosureG n !ultiple of enclosure h

base of the enclosure is close to ero ie the te

practice the dashed part of the characteristic cu

%sures 4ih an effe#ie #%%ling surfa#e Ae 8 1.

ibution te*perature)rise curve-, effective cooling surface perature)rise in the enclosureG n !ultiple of enclosure h

EN "1#$%

, +7

h the points Xt1:

t be deter*ined

e Z 1,+9 *[ sche*atic

ight

perature)rise

rve is not i*portant-

, +7

e Z 1,+9 *[ sche*aticight

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@age +> of "%

5n these t.pes of enclosures the largest te*perature)rise is constant in the upper 2uarter Therefore

the te*perature)rise values Xt1,: and Xt:,>9 are identical 0igure $)+- The te*perature)rise curve is

generated b. co*bining the te*perature)rise values at the values :,>9 and :,9 of the enclosure

height

3.5

Design verification for *ower switchgear and controlgear assemblies=:C>

A power switchgear and controlgear asse*bl."" is a low)voltage switchgear and controlgear

asse*bl. used to distribute and control energ. for all t.pes of loads, intended for industrial,

co**ercial and si*ilar applications where operation b. ordinar. persons is not intended">

Subclause in

$%E/$&'() E& *+,-.+

Design verification 0ontents

and additional/deviating reuirements in accordance #it" $%E/$&'() E& *+,-.2

1:+

#trength of materials and parts

5f an e*pt. enclosure according to EN "++:< is used and no changes have been *ade thatcould influence the suitabilit. of the enclosure, further inspection of the enclosureaccording to 1:+ is not necessar.

eplace*ent for EN "1#$%)1& 5f an i*pact test is perfor*ed, it *ust be perfor*ed

according to EN "++:):1supple*ented b. the additional specifications fro* ÖVE/ÖNO! EN "1#$%)+&+:1+):>):1 applicable for power switchgear

and controlgear asse*blies

""

7o*eti*es these switchgear and controlgear asse*blies are also ter*ed @7 switchgear and controlgear asse*blies@7)Asse*bl. Power Switchgear and Controlgear Asse*bl.-

"> The installation of a power switchgear and controlgear asse*bl. in an area that is accessible to ordinar. persons,

however, is not ruled out 8owever, it *ust be ensured that operation b. ordinar. persons is effectivel. prevented

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@age +< of "%

0or power switchgear asse*blies the additional/deviating specifications according to ÖVE/ÖNO!

EN "1#$%)+ appl. with respect to the general re2uire*ents ÖVE/ÖNO! EN "1#$%)1 & +:1+):>):1,

lause 1: 0irst and fore*ost the. co*prise the additional re2uire*ents for inserts in switchgear and

controlgear asse*blies These are included in Table $)# at the respective points in the te(t

3.6

Design verification for distribution boards intended to be o*erated byordinary *ersons =D

A distribution board intended to be operated b. ordinar. persons is a switchgear and controlgear

asse*bl. used to distribute electrical energ. in do*estic household- applications and other places

where operation is intended b. ordinar. persons"

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@age +% of "%

1:> 5nternal electrical circuits and connections

1:< Ter*inals for e(ternal conductors


1:1:

Verification of te*perature rise

7upple*ent to EN "1#$%)1& oncerning the i*ple*entation of the te*perature)rise test,if there are no *anufacturer's instructions in this respect, the tightening tor2ue applied tothe e2uip*ent connections *ust correspond to the value for the te*perature)riseinspection defined in the product standard assigned to the e2uip*ent e g in EN ":: 5cc- can be assigned to the 6O

1:1+ Electro*agnetic co*patibilit.

1:1$

!echanical operation

7upple*ent to EN "1#$%)1& switchgear and controlgear asse*blies *ust be subect to a*echanical inspection The nu*ber of operating c.cles is reduced to 9: c.cles for 6Os

co*pared with +:: c.cles in EN "1#$%)1-

Table $)9 ontent of the design verification, general overview according to ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1supple*ented b. the additional specifications fro* ÖVE/ÖNO! EN "1#$%)$&+:1$):"):1 applicable for 6Os

0or distribution boards intended to be operated b. ordinar. person, it is *ade clear, as with the

establish*ent of the design verification for power switchgear and controlgear asse*blies, that the

use of enclosures tested b. the *anufacturer in accordance with EN "++:< si*plifies things

considerabl. The verification of the enclosure *anufacturer *ust be attached to the Technical

ocu*entation of the original *anufacturer of the switchgear and controlgear asse*bl.

3.# Design verification and *ossible verification methods

Various verification *ethods can be consulted for the verification of individual re2uire*ents A

general overview is provided in Table $)1 A detailed overview intended as a tool for the practical

i*ple*entation of the verification is provided in Table $)" This is also printed again in 7ection 11$

of this specialist publication-, i*ple*ented as a *aster cop. for dail. use

"% Te*perature rise li*its according to ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, Table " The surfaces of touchable, e(ternal

*etals parts are *ar3ed there as ?Accessible e(ternal enclosures and covers?>:

ated conditional short)circuit current 5cc according to ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, subclause $

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Subclause in

$%E/$&'() E&

*+,-.+

Design verification 3eatures to be verifiedossible verification

t"roug"7+

1:+ 7trength of *aterials and parts

E*pt. enclosure

according to

EN "++:<

1:+1 to 1:+>

Beneral re*ar3s for the verification& *echanical, electrical

and ther*al suitabilit. in accordance with 1:+1 to 1:+>

ocu*ent test results of the individual points 1:+1 to

1:+>-

5nspection

Assess*ent

1:$ egree of protection of enclosures I5@ protection class&J 5nspection

Assess*ent

1:# learances and creepage distance 5nspection

1:9@rotection against electric shoc3 and integrit. of protective

circuits

Effective earth continuit. between the e(posed conductive

parts of the asse*bl. and the protective circuit

!a(i*u* resistance :1 with a test current of at least

1: A A or -

5nspection

7hort)circuit withstand strength of the protective earth

circuit

5nspection

o*parison with

reference design

1:" 5nstallation of e2uip*ent Assess*ent

1:> 5nternal electrical circuits and connections Assess*ent

1:< Ter*inals for e(ternal conductors Assess*ent


@ower fre2uenc. withstand voltage 5nspection

5*pulse withstand voltage 5nspection

Assess*ent

1:1: Verification of te*perature rise 5nspection

o*parison with

reference design

Assess*ent

1:11 7hort)circuit withstand strength 5nspection

o*parison with

reference design

1:1+ Electro*agnetic co*patibilit. E!- 5nspection

Assess*ent

1:1$ !echanical operation 5nspection

Table $)" @ractical i*ple*entation of the design verification, chec3 list

>1 5nspection and calculation results are attached to this verification

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!outine verification

.1

eneral observations

The purpose of the routine verification to be perfor*ed b. the asse+/ly +anufa#urer- is to

deter*ine an. potential *aterial and *anufacturing faults and to ensure the proper functioning of

the co*pleted switchgear and controlgear asse*bl.

5t *ust be perfor*ed for each individual switchgear and controlgear assembly and *ust include the

points indicated in Table #)1 >+ The *anufacturer of the switchgear and controlgear asse*bl. *ust

specif. whether the routine verification *ust be perfor*ed during and/or after the *anufacturing

process

outine verifications do not need to be perfor*ed on e2uip*ent installed in the switchgear and

controlgear asse*bl. and on asse*blies to be used on their own if the. are selected according to the

selection regulations stated in 7ubclause Ter*inals for e(ternal conductors

11< !echanical operation

11% ielectric properties

111: Diring, operational perfor*ance and function

Table #)1 ontent of the routine verification, overview

.2

!outine verification and *ossible verification methods

A detailed overview intended as a tool for the practical i*ple*entation of the routine verification is

provided in Table #)+ This is also printed again in 7ection 11# of this specialist publication-,

i*ple*ented as a *aster cop. for dail. use

>+ e2uire*ents fro* lause 11 of ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1

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Subclause in

$%E/$&'() E&

*+,-.+

(outine verification 3eatures to be verifiedossible verification

t"roug"7-

11+ egree of protection of enclosures Visual inspection

11$ reepage distances Visual inspection

!easure*ent

11$

learances

7*aller than in Table 1 of EN "1#$%)1 5nspection

Not obviousl. larger than in Table 1 of EN "1#$%)1 !easure*ent/5nspecti

on

Harger than in Table 1 of EN "1#$%)1 Visual inspection

11#

@rotection against electric shoc3 and integrit. of protective

circuits

6asic protection, fault protection, additional protection Visual inspection

7crewed and bolted connections of protective circuits 7a*pling inspection

119 5ncorporation of built)in co*ponents Visual inspection

11"

5nternal electrical circuits and connections

onnections of electrical circuits tightened properl. 7a*pling inspection

Diring co*plies with *anufacturing instructions asse*bl.

instructions-

Visual inspection

11>o*pliance of connections for cables inserted fro* outside

with asse*bl. *anufacturing instructions docu*ents-

Visual inspection

11< !echanical operation 5nspection

11% ielectric properties

@ower)fre2uenc. withstand test 5nspection

5nsulation *easure*ent onl. for switchgear and controlgear

asse*blies with overcurrent protection device up to +9: A in

the suppl.-

5nspection

111:

Diring, operational perfor*ance and function

o*pleteness of *ar3ings and docu*entation Visual inspection

0unctional testing in co*ple( switchgear and controlgear

asse*blies

5nspection

Table #)+ @ractical i*ple*entation of the routine verification, chec3 list

5 Mar"ing and documentation

5.1 Mar"ing

6efore the declaration of confor*it. is issued and no later than before co**issioning connection of

the switchgear and controlgear asse*bl. to the electrical s.ste*- the *ar3ing of the switchgear and

>$ 5nspection and calculation results are attached to this verification

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controlgear asse*bl., the docu*entation and the identification re2uire*ents of the e2uip*ent

and/or co*ponents *ust be perfor*ed b. the assembly manufacturer *anufacturer of the

switchgear and controlgear asse*bl.->#

Curren

designai%n

Inf%r+ai%n O9

aNa*e of the asse*bl. *anufacturer or trade*ar3G this is the organisation that assu*esresponsibilit. for the asse*bled switchgear and controlgear asse*bl.

bT.pe designation or identification nu*ber or an. other *eans of identification on the basis ofwhich the necessar. infor*ation can be re2uested fro* the *anufacturer of the switchgear asse*bl.

c !eans of identif.ing date of *anufacture

d

5nfor*ation regarding which parts of the EN "1#$% the switchgear and controlgear asse*bl.corresponds to

0or power switchgear and controlgear asse*blies *ust be indicated here& EN "1#$%)!

0or distribution boards intended to be operated b. ordinar. persons *ust be indicated here& EN

"1#$%)"

e

@ossible further designations if re2uired in the corresponding clauses of the series of standards

ÖVE/ÖNO! EN "1#$%

No further designations are defined for power switchgear and controlgear asse*blies

0or distribution boards intended to be operated b. ordinar. persons the rated current in thise(a*ple the rated current is 5nA ]1+9 A- *ust be indicated in the following for*& 5nA 1+9 A

0or distribution boards intended to be operated b. ordinar. persons, the protection class of theswitchgear and controlgear asse*bl. *ust be indicated if it e(ceeds 5@ +^& eg 5@ ++

Table 9)1 esignation of the switchgear and controlgear asse*bl. on identification plate ?identification plate?-G chec3 list

The *anufacturer of the switchgear and controlgear asse*bl. *ust per*anentl. furnish each

switchgear and controlgear asse*bl. with one or *ore inscriptions so that these are legible whenthe connected switchgear and controlgear asse*bl. is in operation

0or special inscriptions an inspection ?wipe test?- is included in the standard>9 5nscriptions that are

produced b. *oulding, pressing, engraving or si*ilar, including labels with la*inated plastic

covering, do not have to be inspected separatel. The visual inspection is sufficient The ?wipe test?

onl. has to be perfor*ed for 6Os if the 6O is designed for outdoor installation

The necessar. switchgear and controlgear asse*bl. infor*ation on the designation plates are

co*piled in the chec3list Table 9)1- 0urther infor*ation *a. be re2uired depending on the t.pe of

switchgear and controlgear asse*bl. Thus for distribution boards intended to be operated b.

ordinar. persons the rated current 5nA e g 5nA 1+9 A- and the protection class *ust still be indicated

if it e(ceeds 5@ +^

5.2 Documentation

All characteristics of interfaces>" see 7ection > of this specialist publication- *ust be available in the

technical docu*entation of the asse*bl. *anufacturer supplied with the switchgear and controlgear

asse*bl.

># 7ee also ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, lause "

>9 5nspection according to ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, 7ubclause 1:+>

>" 5nterface characteristics according to ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, lause 9 and/or the infor*ation re2uired in

@arts + to ", provided the. are relevant to the respective switchgear and controlgear asse*bl.

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The handling, installation, operation and *aintenance conditions of the switchgear and controlgear

asse*bl. and the e2uip*ent contained therein *ust be included in the docu*entation

7i*ilarl. the instructions, where necessar., *ust describe an. *easures that are i*portant for

faultless transportation, handling, installation and operation of the switchgear and controlgear

asse*bl. This also includes infor*ation about reco**ended scope and fre2uenc. of *aintenance

The indication of weight details is particularl. i*portant in relation to the transportation and

handling of switchgear and controlgear asse*blies The correct position and *ounting of lifting

devices and the thread di*ensions of lifting devices *ust, if necessar., be indicated in the technical

docu*entation for the switchgear and controlgear asse*bl. or in the transportation instructions

5f installation, operation and *aintenance *easures are necessar. in ter*s of electro*agnetic

co*patibilit., these *ust also be indicated>>

@articular attention should be paid to the docu*entation obligation in an. cases where a switchgear

and controlgear asse*bl., which is designed specificall. for the E!- environ*ent A, is used in

E!- environ*ent 6

5n these cases the following infor*ation *ust be included in the docu*entation&

:Caui%n; This product has been designed for environ*ent A>% *a. cause unwanted electro*agnetic disturbances in which case the user *a. be re2uired to

ta3e ade2uate *itigation *easures ?

5f the circuits are not identif.able fro* the structural arrange*ent of the integral devices,

docu*entation *ust be provided eg circuit diagra*s or ter*inal diagra*s 5t *ust be possible toidentif. particular circuits and the protection devices of these within the switchgear and controlgear

asse*bl.

!ar3ings *ust be legible, per*anent and suitable for the ph.sical environ*ent All *ar3ings used

*ust co*pl. with 5E ):1, Appendi( K

>< E(a*ples of environ*ent A& 5ndustrial, scientific and *edical 57!)- devices, as defined in 57@ 11, are availableG large

inductive or capacitive loads are often switchedG currents and associated *agnetic fields are large Environ*ent A isdefined b. the E! generic standards 5E "1:::)")+ and 5E "1:::)")#

>% E(a*ples of environ*ent 6& o*iciles, e g houses, apart*entsG retail eg shops, super*ar3etsG business pre*ises, e goffices, ban3sG public entertain*ent facilities, e g cine*as, public bars, dance clubsG outdoor areas, e g petrol stations,

car par3s, entertain*ent and sports facilitiesG s*all enterprises, e g wor3shops, laboratories, service centres

Environ*ent 6 is defined b. the E! generic standards 5E "1:::)")1 and 5E "1:::)")$

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The E or *ore recent E4- eclaration of onfor*it. represents a special for* of declaration of

confor*it. The issuance of the E4 eclaration of onfor*it. is *andator. for *anufacturers that

intend to *ar3et the switchgear and controlgear asse*bl. in an E4 !e*ber 7tate

How)voltage switchgear and controlgear asse*blies as e2uip*ent *ust satisf. the irective relating

to How)voltage I$J and the E! irective I9J see also 7ection 1 of this specialist publication- 6oth ofthese directives stipulate that the following points *ust be included in the E eclaration of

onfor*it.&

Na*e and address of the *anufacturer and if necessar., its representative in the

o**unit.

5nfor*ation to clearl. identif. the switchgear and controlgear asse*bl.

escription of the electrical e2uip*ent

eference to the irective relating to How)voltage and/or the E! irective I$J, I9J

eference to the har*onised standards that were applied during *anufacture

5f necessar., reference to further- specification that were consulted for the declaration ofconfor*it.

The last two figures of the .ear in which the E *ar3 was applied

ate of declaration

Na*e and signature of the authorised signator. for the *anufacturer or its representatives

The E irectives I$J, I9J do not provide an. special procedural re2uire*ent or la.out- for the E

eclaration of onfor*it. 5t is i*portant that the E eclaration of onfor*it. can be clearl.

assigned to the switchgear and controlgear asse*bl. This is nor*all. through a clear identification

nu*ber, which is *ar3ed on the switchgear and controlgear asse*bl. itself on the identification

plate- This identification nu*ber *ust be legible on the connected switchgear and controlgearasse*bl. when in operation in ter*s of designation see also 7ection 91 of this specialist

publication-

Each individual switchgear and controlgear asse*bl. is *anufactured for a specific installation

environ*ent The confor*it. state*ent of the switchgear and controlgear asse*bl. *anufacturer is

alwa.s onl.- related to the specific installation environ*ent for which it is produced 0urther*ore,

for this reason it is ver. i*portant particularl. for potential liabilit. clai*s- that the *anufacturer

can accuratel. correlate the declaration of confor*it. and switchgear and controlgear asse*bl.

#

$nterfaces characteristics

#.1

eneral observations

The switchgear and controlgear asse*bl. co*es into contact with the installation environ*ent via

interfaces rated values for voltages and currents, rated diversit. factor, re2uire*ents for operation,

*aintenance and e(tension -, which are deter*ined b. ?interface characteristics?

The interface characteristics8& are technical properties of the switchgear and controlgear asse*bl.

that are deter*ined b. the installation environ*ent

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Thus for e(a*ple, as a feature of the suppl. the prospective the short)circuit current 5cp- deter*ines

the rated conditional short)circuit current 5cc- of the switchgear and controlgear asse*bl. The

installation conditions eg indoor or outdoor installation deter*ine the properties of the switchgear

and controlgear asse*bl. in ter*s of 5@ class, 5` class and/or 4V resistance

#.2

!ated Diversity &actor =!D&>As a characteristic para*eter of a low)voltage switchgear and controlgear asse*bl., the rated

diversit. factor

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the asse*bl. 5nA-, this rated diversit. factor ?onl.?- applies to each asse*bl. of output circuits that

are used to distribute the input current

#.2.1 !D& in *ower switchgear and controlgear assemblies =:C>

5f no agreement e(ists for power switchgear and controlgear asse*blies between the *anufacturer

of the switchgear and controlgear asse*bl. and the user regarding the actual load currents, thevalues for the assu*ed load of the outgoing circuits or a group of outgoing circuits of the switchgear

and controlgear asse*bl. *a. be ta3en fro* Table >)1

3ype %f l%ad < u+/er %f %ug%ing #ir#uis Assu+ed l%ad fa#%r

Energ. distribution& + and $ :%

Energ. distribution& # and 9 :<

Energ. distribution& " up to and including % :>

Energ. distribution& 1: and *ore- :"

Electric actuator :+

!otors U 1:: 3D :<

!otors Z 1:: 3D 1:

Table >)1 Values for the assu*ed loadG e(tracted ÖVE/ÖNO! EN ":#$%)+&+:1+):>):1, Table 1:1

#.2.2 !D& in distribution boards intended to be o*erated by ordinary *ersons =D

5f no agreement e(ists for distribution boards intended to be operated b. ordinar. persons between

the *anufacturer of the switchgear and controlgear asse*bl. and the user regarding the actual load

currents, the values for the assu*ed load of the outgoing circuits or a group of outgoing circuits of

the switchgear and controlgear asse*bl. *a. be ta3en fro* Table >)1

u+/er %f %ug%ing #ir#uis Assu+ed l%ad fa#%r

+ and $ :<

# and 9 :>

" up to and including % :"

1: and *ore- :9

Table >)+ Values for the assu*ed loadG e(tracted ÖVE/ÖNO! EN ":#$%)$&+:1$):"):1, Table 1:1

#.3 $nterface characteristics ; 4verview

The interface characteristics of the switchgear and controlgear asse*bl. *ust be indicated b. theassembly manufacturer These features *ust be co*patible with the rating of the circuits to which

the switchgear and controlgear asse*bl. is connected and with the installation conditions

Table >)$ provides a su**ar. of these interface characteristics Each standard)co*pliant definition

of the individual features can be found in lauses $ and 9 in ÖVE/ÖNO! EN "+#$%&+:1+):>):1

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Su/#lause in

=(E1'"?-1

Sy+/%l Designai%n

,.! (%lage raings

9+1 4n ated voltage of the switchgear and controlgear asse*bl.

9++ 4e ated operational voltage of a circuit of an asse*bl.

9+$ 4i ated insulation voltage of a circuit of an asse*bl.

9+# 4i*p ated i*pulse withstand voltage of the asse*bl.

,." Curren raings

9$1 5nA ated current of the asse*bl.

9$+ 5nc ated current of a circuit

9$$ 5p3 ated pea3 withstand current

9$# 5cw ated short)ti*e withstand current strength of a circuit of an asse*bl.

9$9 5cc ated conditional short)circuit current of an asse*bl.

,.' 0D 0aed Diersiy a#%r

,., f n 0aed fre2uen#y

,.> Oher #hara#erisi#s

9" a-Additional re2uire*ents depending on the specific service conditions ofa functional unit eg t.pe of coordination, overload characteristics-G

9" b- @ollution degree

9" c- T.pes of s.ste* earthing for which the asse*bl. is designed

9" d- 5ndoor and/or outdoor installation

9" e- 7tationar. or *ovable

9" f- egree of protection

9" g- 5ntended for use b. s3illed or ordinar. persons

9" h- Electro*agnetic co*patibilit. E!- classification

9" i- 7pecial service conditions if applicable-

9" - E(ternal design

9" 3- !echanical i*pact protection if applicable-

9" l- T.pe of construction ) fi(ed or re*ovable parts

9" * The nature of short)circuit protective devices-

9" n- !easures for protection against electric shoc3

9" o-Overall di*ensions, including proections parts eg handles, covers,doors if re2uired-

9" p- The weight if necessar.-

Table >)$ 5nterface characteristics of low)voltage switchgear and controlgear asse*bliesG general overview according toÖVE/ÖNO! EN "1#$%)1&+:1+):>):1

#.

$nterface characteristics for *ower switchgear and controlgear

assemblies =:C>

5n addition to the interface characteristics to be observed for all low)voltage switchgear andcontrolgear asse*blies see Table >)$-, the additional/deviating stipulations according to

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ÖVE/ÖNO! EN "1#$%)+& +:1+):>):1, lause 9 appl. for power switchgear and controlgear

asse*blies in respect of the general re2uire*ents

Su/#lause in

=(E1'"?-1

Sy+/%l Designai%n

,.! (%lage raings

9+1 4n ated voltage of the switchgear and controlgear asse*bl.

9++ 4e ated operational voltage of a circuit of an asse*bl.

9+$ 4i ated insulation voltage of a circuit of an asse*bl.

9+# 4i*p ated i*pulse withstand voltage of the asse*bl.

,." Curren raings

9$1 5nA ated current of the asse*bl.

9$+ 5nc ated current of a circuit

9$$ 5p3 ated pea3 withstand current

9$# 5cw ated short)ti*e withstand current strength of a circuit of an asse*bl.

9$9 5cc ated conditional short)circuit current of an asse*bl.

,.' 0D

0aed Diersiy a#%r

7upple*ent to EN "1#$%)1& 5n particular cases the assu*ed load of the

outgoing circuits or group of outgoing circuits *a. be read fro* a tablesee 7ection >+1 of this specialist publication-

,., f n 0aed fre2uen#y

,.> Oher #hara#erisi#s

9" a-Additional re2uire*ents depending on the specific service conditions ofa functional unit eg t.pe of coordination, overload characteristics-G

9" b- @ollution degree

9" c- T.pes of s.ste* earthing for which the asse*bl. is designed

9" d- 5ndoor and/or outdoor installation

9" e- 7tationar. or *ovable

9" f- egree of protection

9" g- 5ntended for use b. s3illed or ordinar. persons

9" h- Electro*agnetic co*patibilit. E!- classification

9" i- 7pecial service conditions if applicable-

9" - E(ternal design

9" 3- !echanical i*pact protection if applicable-

9" l- hange to EN "1#$%)1& The t.pe of construction ) fi(ed, re*ovable orwithdrawable parts

9" * The nature of short)circuit protective devices-

9" n- !easures for protection against electric shoc3

9" o-Overall di*ensions, including proections parts eg handles, covers,doors if re2uired-

9" p- The weight if necessar.-

9" 2- 7upple*ent to EN "1#$%)1& the for* of internal separation

9" r-7upple*ent to EN "1#$%)1& the t.pes of electrical connections offunctional units

Table >)# 5nterface characteristics of interface of low)voltage switchgear and controlgear asse*bliesG general overview

according to ÖVE/ÖNO! EN "1#$%)1&+:1+):>):1, supple*ented b. the additional specification fro* ÖVE/ÖNO! EN"1#$%)+&+:1+):>):1 applicable to power switchgear and controlgear asse*blies

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@age #: of "%

As well as the options to specif. the rated diversit. factor based on the t.pe of load if no other

relevant agree*ents e(ist between the *anufacturer and the user- see 7ection >+1 of this

specialist publication-, these concern the design, t.pe of internal separation and electrical connection

*ethods of functional units These are included in Table >)# at the respective points in the te(t

#.5

otes for *ractical use of :Cse2uire*ents for power switchgear and controlgear asse*blies @7s- are specified according to the

operational re2uire*ents of the user and/or planner A few, select points that concern the structural

design of the switchgear and controlgear asse*bl., particularl. the choice and design of the

switchgear and controlgear, should be highlighted here

A detailed representation is available in ÖVE/ÖNO! EN "1#$%, @art 1 and/or @art +, 7ubclause

)9 Assign*ent of operating *odes nor*al operation, *aintenance, e(tension- for activities and for availabilit. of

the low)voltage switchgear and controlgear asse*bl.

Therefore, in practice it is i*portant to 3now the precise re2uire*ents of the user operator- when

designing a switchgear and controlgear asse*bl.

Table >)9 assigns the three categories of availabilit. not necessar., partiall. desired, and necessar.-

to the intervention options for the different operating *odes nor*al operation, *aintenance,

e(tension- On the other hand, the re2uired categor. throws up conse2uences for the *echanical

and electrical design of the switchgear and controlgear asse*bl. and for the t.pe of switchgear and

controlgear used see Table >)"-

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Operai%n Mainenan#e Exensi%n Suggesi%ns f%r sru#ural design

C a e g % r y

+ 1 1ixed insallai%n

7witchgear and controlgear installed on asse*bl. plate

+ + $Plug-in e#hn%l%gy

5nput side

+ $ $Plug-in e#hn%l%gy

5nput and output side

$ $ +Sl% e#hn%l%gy

7witchgear and controlgear with own hard)wired slot enclosure

$ $ $Sl% e#hn%l%gy

with operating, test and isolation position

Table >)" 7tructural design of the low)voltage switchgear and controlgear asse*bl. depending on the availabilit. categories

#.5.2 !e'uirements related to accessibility for authorised *ersons during o*eration

T.pe and scope of accessibilit. for authorised persons during operation *ust be agreed between the*anufacturer of the switchgear and controlgear asse*bl. and the user/planner

The design i*ple*entation b. the *anufacturer of the switchgear and controlgear asse*bl. *ust

satisf. re2uire*ents in addition to basic protection

Benerall. spea3ing, the re2uire*ents and wor3ing *ethods for wor3 perfor*ed in ero potential

condition disconnected-, for live wor3ing and/or for wor3ing in close pro(i*it. to live parts *ust be

observed for all wor3 perfor*ed on low)voltage switchgear and controlgear asse*blies in

operation

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