LPC Sprinkler Rules - John Stephens

RISK INSIGHT, STRATEGY AND CONTROL AUTHORITYReducing insurable risk through research, advice and best practiceRISK INSIGHT, STRATEGY AND CONTROL AUTHORITYReducing insurable risk through research, advice and best practice

LPC Sprinkler Rules – 2009

incorporating BS EN 12845: Amd 2

John Stephens

RISK INSIGHT, STRATEGY AND CONTROL AUTHORITYReducing insurable risk through research, advice and best practice


Removal of reference to sprinkler kits

NEW


Sprinkler kits and harmonisation of EN12845 deleted

Previously source at lowest level

Was “a statement that the installation will be designed and installed in accordance with this standard or giving details of any deviations from its requirements and the reasons why”.


Two height corrections against Category II (3.5 m changed to 3.4 m)

Change footnote to note, deletion of second footnote

New

Reference to commissioning test values removed


Uncorrected error in Figure 4 – dimensions “A” and “B” to suction pipe intake


Reference to pressure removed

More specific reference to booster pumps

“Suitable clean” replaces “potable”


New

Was “Beams and joists”


Should be 2.0 bar for K 80 in-rack sprinklers

Removal of reference to petroleum jelly


Limits flushing connection to DN40 for underside connections

Change from ISO 65 M to ISO 4200 range D

New


Editorial


Changed but table still has error


New Annex


Annex ZA – Provisions for EU Construction Products Directive

Deleted


LPC Rules Introduction - 1


Technical change to reprinted TB’s - 1

Previous edition referred to Table TB210.T6 (not T5)


Technical change to reprinted TB’s - 2


BS EN 12845 Clause13.4.4 - conflict


Example of LPC Rules tabbingBS EN Clause 13.4.4 to TB 229.3.8


LPC Rules Clause TB 229.3.8


Typical BS EN12845 tabbed page


Extensively revised

Incorporated in TB201


Replaced by TB227

Replaced by TB227


Replaced by TB210


Withdrawn

New

New


TB 203 Care and maintenance of automatic sprinkler installations - Revision

Background


TB 203 Care and maintenance - 2


TB 203 Care and maintenance - 5Review of hazard - identified items



TB203.3.4 Yearly routine


Task 1/12 ¼ Yr ½ Yr 1 Yr 3 Yrs

TB203.2.3.1 Water storage tank security *

TB203.3.2.2 Review of hazard - user * *

TB203.3.2.4 Flow switches, Life safety *

TB203.3.3.3 Water supplies *

TB203.3.3.4 Electrical supplies *

TB203.3.3.5 Stop valve operation *

TB203.3.4.4 Review of hazard - Cont *

TB203.3.4.5 Sprinklers, mjc, sprayers *

TB203.3.4.6 Pipework *

TB203.3.4.7 Replacement parts *

TB203.3.4.10 Alarm stations *

TB203.3.2.4 Flow switches, Property protect *

TB203.3.5.4 Foot valves *


TB 232 Sprinkler installation control valve sets -1


TB 232 Sprinkler installation control valve sets - 2


TB 232 Sprinkler installation control valve sets -3


TB 232 Sprinkler installation control valve sets - 4


TB 233 – Water supplies for life safety system -1


TB 233 – Water supplies for life safety system - 2


TB 233 – Water supplies for life safety system -3


TB 233 – Water supplies for life safety system - 4

TB Includes relevant extracts from the ADB


London Road, Moreton In Marsh , Gloucestershire GL56 0RHT: +44(0)1608 12500 F: +44(0)1608 812501 E: [email protected] www.riscauthority.co.uk

John [email protected] 623 950

LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

FPA, November 2009 Page 1

Summary of changesSummary of changesSummary of changesSummary of changes

This summary of the changes to the LPC Rules for automatic sprinkler This summary of the changes to the LPC Rules for automatic sprinkler This summary of the changes to the LPC Rules for automatic sprinkler This summary of the changes to the LPC Rules for automatic sprinkler

installations 2009, incorporating BS EN 12848:2004 +A2:2009 installations 2009, incorporating BS EN 12848:2004 +A2:2009 installations 2009, incorporating BS EN 12848:2004 +A2:2009 installations 2009, incorporating BS EN 12848:2004 +A2:2009 (LPC Rules) (LPC Rules) (LPC Rules) (LPC Rules)

has been prepared to assist has been prepared to assist has been prepared to assist has been prepared to assist users identifyusers identifyusers identifyusers identify and understand the nature of the and understand the nature of the and understand the nature of the and understand the nature of the

changes in this new edition of the LPC Rules. It changes in this new edition of the LPC Rules. It changes in this new edition of the LPC Rules. It changes in this new edition of the LPC Rules. It is not intended to be used is not intended to be used is not intended to be used is not intended to be used

as an alternative to referencingas an alternative to referencingas an alternative to referencingas an alternative to referencing or usingor usingor usingor using ththththis editionis editionis editionis edition of of of of the LPC Rules.the LPC Rules.the LPC Rules.the LPC Rules.

The FPA makes no guarantee, representation or warranty (exThe FPA makes no guarantee, representation or warranty (exThe FPA makes no guarantee, representation or warranty (exThe FPA makes no guarantee, representation or warranty (express or press or press or press or

implied) implied) implied) implied) as to the accuracy or completeness of any information and advice as to the accuracy or completeness of any information and advice as to the accuracy or completeness of any information and advice as to the accuracy or completeness of any information and advice

contained in this summary. All advice is given on the basis of information, contained in this summary. All advice is given on the basis of information, contained in this summary. All advice is given on the basis of information, contained in this summary. All advice is given on the basis of information,

knowledge and technology as at the date of this summary. knowledge and technology as at the date of this summary. knowledge and technology as at the date of this summary. knowledge and technology as at the date of this summary.

Use or reliance upon this summary is aUse or reliance upon this summary is aUse or reliance upon this summary is aUse or reliance upon this summary is at the users own risk.t the users own risk.t the users own risk.t the users own risk.

BS EN 12848:2004 +A2:2009BS EN 12848:2004 +A2:2009BS EN 12848:2004 +A2:2009BS EN 12848:2004 +A2:2009

Most changes in BS EN 12845 are indicated by start and finish markers .

National forewordNational forewordNational forewordNational foreword

The national foreword has been revised and references are made to the special

requirements for life safety. The UK normal practice of reserving sprinkler system

water supplies solely for the sprinkler system is referred to and it should be

assumed that this reference in the national foreword relates to the Note at 9.6.4,

although this is not stated

We recommended that LPC rules users read the National foreword.

Contents, Contents, Contents, Contents, ForewordForewordForewordForeword and Introductionand Introductionand Introductionand Introduction

Several changes have been made in these sections but are not identified here.

(Page 12)

1. 1. 1. 1. Scope Scope Scope Scope

Reference to sprinkler kits deleted

New

(Page 13)

2. 2. 2. 2. Normative ReferencesNormative ReferencesNormative ReferencesNormative References

Five changes to document references




3. 3. 3. 3. Terms and conditionsTerms and conditionsTerms and conditionsTerms and conditions

(Page 17)

3.39 Jockey pump definition deleted, following clauses renumbered

Term expanded, last two lines added

Definition specifies source at its normal level

Term Jockey pump re-introduced as “pressure maintenance pump”

(Page 19)

3.71 Sprinkler kit deleted.

4. 4. 4. 4. Contract planning and documentationContract planning and documentationContract planning and documentationContract planning and documentation

(Page 21)

4.3 Preliminary or estimating stage

Reference to deviations and reasons for deviating removed.

(Page 22)

4.4.2 Summary schedule4.4.2 Summary schedule4.4.2 Summary schedule4.4.2 Summary schedule




Editorial plus “based on available information” added.

6.2.2 Ordinary Hazard6.2.2 Ordinary Hazard6.2.2 Ordinary Hazard6.2.2 Ordinary Hazard

(Page 30)

Table 1 heading amended to “OH3”, references to OH1 and OH2 omitted.

Second Note deleted 1.

6.36.36.36.3.2 Storage configuration .2 Storage configuration .2 Storage configuration .2 Storage configuration

(Page 33)

Revised wording for ST2 Layout limitation

1 See TB228.T1 for exclusion of ST6.




7.2.3 Intermediate level in7.2.3 Intermediate level in7.2.3 Intermediate level in7.2.3 Intermediate level in----rack sprinklersrack sprinklersrack sprinklersrack sprinklers

(Page 37)

Table 4 Table 4 Table 4 Table 4 –––– Design criteria for HHS with roof or ceiling protection onlyDesign criteria for HHS with roof or ceiling protection onlyDesign criteria for HHS with roof or ceiling protection onlyDesign criteria for HHS with roof or ceiling protection only

Density/ height values added for ST2/ST4 at 22.5 and 27.5 mm/min.

(Page 38)

Category II height values changed from 3.5 to 3.4m. 2

(Page 44)

8.5 Flow test facilitiesFlow test facilitiesFlow test facilitiesFlow test facilities

“Device” changed to “facility”.

2 See also TB229.3.3




New clause.

(Page 45)

8.5.2 At water supplies8.5.2 At water supplies8.5.2 At water supplies8.5.2 At water supplies

Word change, “facility” was “arrangement”.

New paragraph added.

(Page 45)

8.6.2 Storage tank and pressure tank supplies8.6.2 Storage tank and pressure tank supplies8.6.2 Storage tank and pressure tank supplies8.6.2 Storage tank and pressure tank supplies

Reference to verification of commissioning test values omitted.

(Page 46)

9.2 Town mains9.2 Town mains9.2 Town mains9.2 Town mains

Reversion to 2003 edition.

(Page 47)

9.3.2.2 9.3.2.2 9.3.2.2 9.3.2.2 PrePrePrePre----calculated systemscalculated systemscalculated systemscalculated systems

Change table footnote to note.




(Page 48)

9.3.4 Reduced capacity tanks9.3.4 Reduced capacity tanks9.3.4 Reduced capacity tanks9.3.4 Reduced capacity tanks

New requirement.

(Page 49)

“Effective” inserted.

(Page 49)

“nominal” inserted.

9.4 Inexhaustible sources 9.4 Inexhaustible sources 9.4 Inexhaustible sources 9.4 Inexhaustible sources –––– Settling and suction chambersSettling and suction chambersSettling and suction chambersSettling and suction chambers

(Page 53)

“mm” changed to “mm2”.

9.5 Pressure9.5 Pressure9.5 Pressure9.5 Pressure tankstankstankstanks

()

“and/or water spray system added”




()

9.5.4.2

Reversion to 2003 Edition.

(Page 56)

9.6 Choice of water9.6 Choice of water9.6 Choice of water9.6 Choice of water supplysupplysupplysupply

Editorial.

Removal of reference to pressure in first bullet point.

Revised clause specifying booster pumps for one or both supplies as

appropriate.

“Potable” changed to “suitable clean”.




(Page 59)

10.5 Valves10.5 Valves10.5 Valves10.5 Valves and accessoriesand accessoriesand accessoriesand accessories

Fitting of stop valve has been made conditional. 3

Booster pump by-pass required.

Taper changed from 15º to 20º

Page 60)

10.6.2 Suction10.6.2 Suction10.6.2 Suction10.6.2 Suction pipepipepipepipe

Taper changed from 15º to 20º. Prohibition of valves connected to the pump

suction deleted.

Paragraph rephrased.

3 LPC Sprinkler Rules users should apply TB210




(Page 61)

The word “pressure” inserted three times into rated pump flow requirements.

(Page 62)

New clauses.

(Page 65)

Reference to Figure 7 added.




(Page 65)

Deletion of reference to Figure 7.

(Page 66)

10.7.5 Pressure switches10.7.5 Pressure switches10.7.5 Pressure switches10.7.5 Pressure switches

Connection in series deleted, with additional qualification.3

Reversion to 2003 Edition.

(Page 67)

10.8.5 Pump controller10.8.5 Pump controller10.8.5 Pump controller10.8.5 Pump controller

Change from category AC-4 to AC-3 contacts.3

Editorial3.

(Page 70)

Change from “EN 50432” to “EN 50342-1 and EN 50342-2”, twice.




11.4 Pre11.4 Pre11.4 Pre11.4 Pre----action action action action installationsinstallationsinstallationsinstallations

(Page 75)

New requirement inserted.

(Page 79)

Revised heading and key, removing references to joist.




(Page 80)

Removal of reference to joist.

(Page 81)

Revised figure.




(Page 91)

In first line “equilibrium” deleted;

In the first bullet point, “strainer” added; and

The word “with” added in the penultimate line.

(Page 92)

Table corrections




(Page 101)

Figure 16 Figure 16 Figure 16 Figure 16 –––– Examples of range pipe arraysExamples of range pipe arraysExamples of range pipe arraysExamples of range pipe arrays

Figure revised.

(Page 102)

Figure 17 Figure 17 Figure 17 Figure 17 –––– Example of application of Example of application of Example of application of Example of application of design points in a LH installationdesign points in a LH installationdesign points in a LH installationdesign points in a LH installation

Reversion to 2003 edition4

(Page 103)

Figure 18 Figure 18 Figure 18 Figure 18 –––– Example of application of design points (1 to 7) in an OH Example of application of design points (1 to 7) in an OH Example of application of design points (1 to 7) in an OH Example of application of design points (1 to 7) in an OH

installationinstallationinstallationinstallation

Revised key.

4 There is a notation error in the figure.




(Page 109)

Figure 23 Figure 23 Figure 23 Figure 23 –––– Most unfavourable areas of operation in oneMost unfavourable areas of operation in oneMost unfavourable areas of operation in oneMost unfavourable areas of operation in one----sided and sided and sided and sided and two two two two

sided pipe layoutssided pipe layoutssided pipe layoutssided pipe layouts

Revised figure and key.




(Page 110)

Figure 24 Figure 24 Figure 24 Figure 24 –––– Most favourable areas of operation in one sided and two sided Most favourable areas of operation in one sided and two sided Most favourable areas of operation in one sided and two sided Most favourable areas of operation in one sided and two sided

pipe layoutspipe layoutspipe layoutspipe layouts

Revised figure and key




(Page 111)

Figure 25 Figure 25 Figure 25 Figure 25 –––– Most favourable and unfavourable areas of operation Most favourable and unfavourable areas of operation Most favourable and unfavourable areas of operation Most favourable and unfavourable areas of operation in gridded in gridded in gridded in gridded

pipe layout.pipe layout.pipe layout.pipe layout.

(Page 112)

13.4.4 Minimum sprinkler discharge pressure13.4.4 Minimum sprinkler discharge pressure13.4.4 Minimum sprinkler discharge pressure13.4.4 Minimum sprinkler discharge pressure

Addition of k115 sprinkler requirement.5

5 The bullet point - 2.0 bar for in-rack sprinklers refers to K 80 sprinklers, see

TB229.3.8.




(Page 117)

Removal of reference to petroleum jelly.

15.4 Drain valves15.4 Drain valves15.4 Drain valves15.4 Drain valves

(Page 118)

Change from “brass” plug to “suitable” plug.

(Page 119)

Conditional sizing of flushing connection to DN 40.

(Page 122)

Change from ISO 65 L2 to ISO 4200 range D.

(Page 123)

17.1.8 Drainage17.1.8 Drainage17.1.8 Drainage17.1.8 Drainage

New NOTE.




(Page 124)

Editorial.

(Page 129)

Changed heading.

(Page 135)

Deletion of section “21 Evaluation of conformity”.

(Page 136 to 139)

Changes denoted by emboldened italic entries in tables.6

6 Candle wax factories, match factories, paint application shops removed from

OH4 and moved to HHP.




(Page 145 to 150)

Changes to table denoted by italic text, see Mattresses.

(Page 151)

D.2 Zoning of D.2 Zoning of D.2 Zoning of D.2 Zoning of installationsinstallationsinstallationsinstallations

Zoning limited by area.

(Page 151)

D.3 Requirements for zoned installationsD.3 Requirements for zoned installationsD.3 Requirements for zoned installationsD.3 Requirements for zoned installations

Zoning limited by area.




(Page 159)

Annex F Special requirements for life safety systemsAnnex F Special requirements for life safety systemsAnnex F Special requirements for life safety systemsAnnex F Special requirements for life safety systems

Zoning limited by area and reversion to 2003 edition

(Page 161)

Annex Annex Annex Annex G G G G

Editorial

(Page 162)

G.3 Clothes in multiple garment hanging storageG.3 Clothes in multiple garment hanging storageG.3 Clothes in multiple garment hanging storageG.3 Clothes in multiple garment hanging storage

Scope of the annex stated.




(Page 166)

Revision of table 7.

(Page 167)

G.7 NonG.7 NonG.7 NonG.7 Non----woven synthetic fabricwoven synthetic fabricwoven synthetic fabricwoven synthetic fabric

Editorial.

(Page 178)

New annex.

7 A horizontal dividing line is missing from the table between wood and plastic

pallet types in first column.




Revised

Technical change to TB210.12




New TB

New TB




TB203 Care and maintenance of automatic sprinkler systems TB203 Care and maintenance of automatic sprinkler systems TB203 Care and maintenance of automatic sprinkler systems TB203 Care and maintenance of automatic sprinkler systems

This TB replaces BS EN Clause 20 in its entirety.

A maintenance programme is specified as follows:

TB203. 3.2.2 Review of hazardTB203. 3.2.2 Review of hazardTB203. 3.2.2 Review of hazardTB203. 3.2.2 Review of hazard (Quarterly)(Quarterly)(Quarterly)(Quarterly)

The Technical Bulletin specifies that the quarterly review of hazard should be

undertaken by one of the following procedures:

• An inspection by a competent person for example an engineer from a

sprinkler servicing contractor; or

• By the sprinkler system user submitting a return to the sprinkler

contractor detailing any changes

A list of items to check during the review of hazard is given in the TB, see below:




If any changes are identified that might change the effectiveness of the sprinkler

protection remedial action should be taken immediately.

The yearly review of hazard is detailed as follows:

The frequencies of maintenance tasks and in some instances changes to

frequencies are illustrated below8:

8 The table shown does not appear in the TB.

TaskTaskTaskTask 1/12 1/12 1/12 1/12 ¼ Yr¼ Yr¼ Yr¼ Yr ½ Yr½ Yr½ Yr½ Yr 1 Yr1 Yr1 Yr1 Yr 3 Yrs3 Yrs3 Yrs3 Yrs

TB203.2.3.1 Water storage tank security TB203.2.3.1 Water storage tank security TB203.2.3.1 Water storage tank security TB203.2.3.1 Water storage tank security *

TB203.3.2.2 Review of hazard TB203.3.2.2 Review of hazard TB203.3.2.2 Review of hazard TB203.3.2.2 Review of hazard ---- useruseruseruser * *

TB203.3.2.4 Flow switches, Life safetyTB203.3.2.4 Flow switches, Life safetyTB203.3.2.4 Flow switches, Life safetyTB203.3.2.4 Flow switches, Life safety *

TB203.3.3.3 Water suppliesTB203.3.3.3 Water suppliesTB203.3.3.3 Water suppliesTB203.3.3.3 Water supplies *

TB203.3.3.4 Electrical suppliesTB203.3.3.4 Electrical suppliesTB203.3.3.4 Electrical suppliesTB203.3.3.4 Electrical supplies *

TB203.3.3.5 Stop valve operationTB203.3.3.5 Stop valve operationTB203.3.3.5 Stop valve operationTB203.3.3.5 Stop valve operation *

TB203.3.4.4 Review of hazard TB203.3.4.4 Review of hazard TB203.3.4.4 Review of hazard TB203.3.4.4 Review of hazard ---- ContContContCont *

TB203.3.4.5 Sprinklers, mjc, sprayersTB203.3.4.5 Sprinklers, mjc, sprayersTB203.3.4.5 Sprinklers, mjc, sprayersTB203.3.4.5 Sprinklers, mjc, sprayers *

TB203.3.4.6 PipeworkTB203.3.4.6 PipeworkTB203.3.4.6 PipeworkTB203.3.4.6 Pipework *

TB203.3.4.7 Replacement partsTB203.3.4.7 Replacement partsTB203.3.4.7 Replacement partsTB203.3.4.7 Replacement parts *

TB203.3.4.10 Alarm stationsTB203.3.4.10 Alarm stationsTB203.3.4.10 Alarm stationsTB203.3.4.10 Alarm stations *

TB203.3.2.4 Flow switches, Property protectTB203.3.2.4 Flow switches, Property protectTB203.3.2.4 Flow switches, Property protectTB203.3.2.4 Flow switches, Property protect *

TB203.3.5.4 Foot valvesTB203.3.5.4 Foot valvesTB203.3.5.4 Foot valvesTB203.3.5.4 Foot valves *




TB210 PumpsTB210 PumpsTB210 PumpsTB210 Pumps

This Technical Bulletin has been expanded to encompass Power supplies

(previously TB220). Only one change of a technical nature has been introduced

in TB210.12

The reference to TB210.T5 in the above paragraph has been changed from

TB210.T6.

TB232 Sprinkler installation control valve setsTB232 Sprinkler installation control valve setsTB232 Sprinkler installation control valve setsTB232 Sprinkler installation control valve sets

This new Technical Bulletin requires that alarm valves are either duplicated or

by-passed to maintain a continuity of water supply to the sprinkler installation

during servicing of the alarm valve.

Figure TB232. F1 Wet pipe control valve arrangement with byFigure TB232. F1 Wet pipe control valve arrangement with byFigure TB232. F1 Wet pipe control valve arrangement with byFigure TB232. F1 Wet pipe control valve arrangement with by----passpasspasspass




Figure TB232. F2 Duplicate installation control valve arrangementFigure TB232. F2 Duplicate installation control valve arrangementFigure TB232. F2 Duplicate installation control valve arrangementFigure TB232. F2 Duplicate installation control valve arrangement

This arrangement may be used for wet or dry pipe installations.

Monitoring of stop valves should be considered but is not a requirement for

property protection purposes.




TB233 Water supplies for life safety systems. TB233 Water supplies for life safety systems. TB233 Water supplies for life safety systems. TB233 Water supplies for life safety systems.

This new Technical Bulletin provides guidance on compliance with the Approved

Document B (Fire Safety) Volume 2- Buildings other than dwellinghouses.

An extract from the ADB detailing the relevant clauses for water supplies is given

in Appendix 1 of the Technical Bulletin.

LPC Sprinkler Rules - John Stephens

Documents

Transcript of LPC Sprinkler Rules - John Stephens