Typical Lightning Protection Products

8/21/2019 Typical Lightning Protection Products

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Facility ElectricalProtection Solutions

Lightning Protection • Grounding & BondingSurge & Transient Protection


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FACILITY ELECTRICAL PROTECTION

Are you at risk?

Why Facility Electrical Prot ectio n isImperative.

• In the USA, light ning causes$4-5 billion in da ma ge s each yea r.

• Lightning kills more people in theUnited State s each year tha n tornad osand hurricanes combined.

• It is est imat ed t hat there are 1,800thunderstorms in progress on eartha t a ny given moment .

• Light ning strikes the ea rth 100 timesper second!

ERICO acknow ledg es tha t no singletechnology can to ta lly eliminat e therisks relat ed to pow er system distur-ba nces and ligh tning transients .

When designing systems for f acility

electrical protection, ERICO considersthe w hole fa cility and believes tha tlight ning protect ion, grounding,equipotent ia l bonding and surge pro-tection are interdependent disciplines.Reliab le prote ction o f structures, indus-tria l a nd commercial operat ions andpersonnel d eman ds a systema tic andcomprehensive approach to minimizethreats caused by transients.

Let ERICO emp loy its sta te -of -th e-arttechnology t o protect your fa cility w itha coordinated systems approa ch.


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1903 1930 1938 1949 1951

Advances in port able welding equipment make possible on-site arc welding for rail bonds.

The Electr ic Railway Improvement Company was formed to manufacture pow er bonds, signalbonds and relatedwelding equipment.

Dr. Cadwell o f t he ElectricRailway Improvement Company invent s the CADWELD process –a copper-based, exoth ermicprocess for w elding copperconducto rs to steel rails.

CADWELD ®

process is introduced into Cathodic Pro- tection applications.

Adapted the CADWELD process fo r use in grounding connections.

1954

Patented w eld metal alloydeveloped for welding aluminummaterials.

1956

EZ Change Handle Clamp is introd uced to the CADWELD process,making it f aster and easier to use.

1959

CADWELD ONE SHOT develop ed – a disposable mold for one time use in connecting a copperconductor to a ground rod.

1960

Prefabricated bimetallic wire m esh introdu ced for grounding mats and antenna reflectors.

1973

Electricalconnectionsdevelopedfor weldingto high p ressure pipelines.

W it h over 60 years of experience in research, testing an d pr od uct develop men t , ERICO emp loys a to tal

engineered system s approach w hen w orkin g w ith customers on any project – ranging fr om small

instal lat io ns to m ult i -bi l l ion dol lar, turnk ey projects anywh ere in the w orld.

Light ning p rot ectio n, groun ding , bonding and surge pro tection are technical subjects

t hat demand t he expert ise th at o nly ERICO can provid e. ERICO can p oin t

faci l i ty ow ners in t he right direct io n w ith the n ecessary suppo rt n eeded

to imp lement a complete f aci l i ty electr ical prot ectio n system .

Risk Management and System Design

A ll ERIC O projects are designed to m eet m odern risk m anagem entphilosophies. O ur products are continuously engineered to m eet currentinternational standards for lightning, surge and grounding standards.

W e develop risk m anagem ent strategies for projects and assess sitesthat have been dam aged by lightning. This often necessitates designsthat go beyond relevant standards.

Design Sof t w are

In recent years, ERIC O has invested heavily in thedevelopm ent of system design softw are, incorporatinga m ultitude of variables into our designs.

The use of proprietary com puter program s ensures thecustom er receives reliable, custom ized protection.

The m ission for Facility Electrical Protection is to protect people andproperty from lightning dam age and transients by providing thebest, m ost cost-effective facility electrical protection system thatm eets good engineering practices.

A solid foundation is key to any facility electrical protection system .The process begins w ith proper grounding.

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PROTECTION

BONDING

GROUNDING


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1975 1977 1981

Company formed in Hobart ,Tasmania,Australia toprovide lightning protection.

Surge Reduction Filters and transient barrier concepts developed – Six Point Planfor Facilities Protectio n firstformulated.

ERICO ® acquires Knight Metalcraft,a m anufacturerof copperbonded ground rods.

1983

ERICO acquir es Carolin a Galvanizing, a manu- facturer of g alvanized and copperbonded ground rods.

1985

Acti ve systemDynasphere Lightning Terminalsconcept developed.

1986 1988

ERICOin trod uces CADWELD ® EXOLONlow emission weldingconnections.

Signal Reference Grid (SRG) is developed t o m inimize the eff ects of transient or electrical noise on sensitive electronic equipmen t.

First in-hou se testing capabilit y (5kA surge generator)

1989

TLP rang e oftelecommunications prot ectors released.

1991

ERICO comb ines Knight Metalcraft and Carolina Galvanizingto fo rm ERITECH ® .

Market Lea ding Products

ERIC O’s products are designed for long-term reliability and are backed by superiortechnical support and product w arranties.

A ll ERIC O products undergo extensive developm ent processes and perform anceevaluations to ensure that they rem ain at the forefront of the electrical protectionindustry. M any of our products m eet w orldw ide standards and are certified byindependent authorities.

Through cont inued investment in

f ield an d labo ratory research,

ERICO is comm itt ed to exp and ing

its already exten sive prod uct

range in order to meet th e

changing needs of our custom ers.

Tra ining, Certificat ion a nd Co mm ission ing

ERIC O provides extensive training for the installation andm aintenance of our system s to ensure optim um perform ance.W e can certify our installations to guarantee that they m eetERIC O’s stringent guidelines and the requirem ents of the appropriate standards or specifications for a particular project. This isessential w hen the environm ental conditions im pose higher dem ands on installations and w hen m inim um levels of protection m ustbe achieved or exceeded. W e also com m ission installations com pleted by external parties to ensure that uniform standards andquality are m aintained.

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1992

Release of patent ed Mo vtec Surge Diverter.

GEM Permanent Ground Enhancement Mat erial is intro duced.

1997

CRITEC Transien t Discriminating (TD) Technol ogy is invented and developed.

ERICO acquires Global

Lightnin g Technolog ies

in Australia.

1998

ERICO releasesTD Techno logy.

ERICO combin es with SUDAFIX a leadin gLightning ProtectionSystem Provider inthe U.K.

1999

ERICO acqu iresAC Lightn ing

1994

In-house200kA 8/20µs surge generatordeveloped.

2000

CRITEC ® int rod uces SEP and Integrated Protection Panel ranges.

2001 2002

ERICO acqu iresBlackburn g round rod line from T & B

CRITEC introdu ces TDX Series Transient Discriminating TVSS

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ResponsiveResearch and Development

ERIC O’s research and developm ent staff continuouslydesigns new products and better m ethods thatanticipate the requirem ents of evolving applications.O ur goal: find long term problem -solving, cost-effective solutions for custom ers.

Research is conducted in laboratories and in thefield, using in-house and independent facilities.In our constant search for innovative solutions, w ehave carried out research in high voltage laborato-ries in Europe, N orth A m erica and Indonesia, asw ell as at field stations in A ustralia and the U .S.

Specialize d Tra ining

ERIC O conducts training courses and educationalsem inars around the w orld to support our cus-tom ers. These can be tailored to suit your specificrequirem ents.

Topics include:

•Theory of lightning form ation

•A ir term inal and lightning dow nconductortechnology

•G rounding for substations

•G rounding for electronic equipm ent includingcom puter and telecom m unications facilities

•Pow er line protection, including shunt andseries protection

•D ata and com m unication equipm ent protection

•Installation procedures

•Lightning safety


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Telecom mun ica tio ns

W ith increasingly com plexand m iniaturized com po-nents and ever increasingim portance and scope,telecom m unications andbroadcast installations arebecom ing m ore reliant on

effective protection fromlightning and over-voltagetransients.

KEY INDUSTRY GROUPSOur t ot al faci li ty electr ical prot ectio n appr oach can

be appl ied to a number of key industr ies including

oi l and gas, telecommu nicatio ns, aviation , minin g,

pow er generation and distr ib ut ion, industry and

pro cess cont rol, and railw ay and m ass rapid t ransit

systems.

Similarly, installatio ns fed by long

distribut ion lines are prone to equipment damage from temporary over-voltages caused by swit ching surges or poorly

regulated pow er suppli es.Over-voltage transients and surges are common in th is situation, so prot ection

is necessary, as is a grounding system design suit able for t he safe dissipationof energy, regardless of local condit ions.

Telecom m unications facilities are particularly at risk.Tall, slender structures located on high terrain, thetops of tall buildings and structures adjacent to tow ersare com m on lightning strike points. Protection forsuch structures from direct lightning strike is essential.

The pow er industry is unlike any other in

that its product –electricity –can have

the sam e effect on hum an and capital

resources as lightning and therefore

requires careful attention in regard to

protection strategies.

Aviation

The com plexities of protecting airports and other aviation facilitiesextend w ell beyond signal and data system s. A pron lights, groundlights and other navigational aids are susceptible to dam age fromlightning strikes, w hich can cause disruption of aircraft m ovem entor have potentially m ore serious consequences.

Pow er Genera t ionand Distribution ERICO’s stat us as one of the world s largest

grounding specialists has resulted in many of our grounding and lightning p rotection systems being incorporated int o pow erstation and substation networks.

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Petrochemical Oil and Gas

The severity of lightning strikes in high-risk areas has often been an under-estim ated com ponent in facility design. Subsequently, conservative lightningprotection solutions have been used. The consequences of not providingeffective grounding and surge protection w hen dissipating high m agnitudelightning currents in close proxim ity to volatile m aterials can be devastating.ERIC O ’s protection strategies are equally applicable to these existing facilitiesas w ell as projects in the design stage.

As wit h all installations, the

integration of eff ective lightning

protection, surge protection and

grounding int o one comprehensive

system, is the only way to provide

optimum safety.

Indu stry Process and Contro l

U ncontrolled surges and transients endanger health and safetyand can lead to expensive equipm ent repairs, considerable pro-duction dow ntim e and loss of revenue and profits.

Rail a nd Ma ss Rap id Tra nsit (MRT) Systems

ERIC O is a global provider of a com plete, all encom passingprotection philosophy. Because of this, w e have becom eincreasingly active in the im provem ent and m odernization ofestablished rail netw orks in developing countries and inassisting w ith the creation of safe, efficient netw orks inem erging econom ies.

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Mining

Soil resistivity and other environm ental considerations pre-sent additional challenges, as do the design and purposeof m any of the structures requiring protection. This is inaddition to the need to protect explosive and fuel storagehandling centers w here the consequences of a lightningstrike can be enorm ous.


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Ancillary Products &Services

•Test Equipm ent

•Consulting•Special D esigns•Training C ourses•Site Surveys•Lightning W arning System s•In-house Testing

Air Term ina ls

•Conventional A ir Term inals•Enhanced A ir Term inals

Dow nconductor Systems

•Conventional Bare M etal C onductors•Insulated Low Im pedance C onductors

Power Protection

•Service Entrance Protectors•Branch Panel Protection•Sensitive Electronic Equipm ent Protection

Data &Signal Line Protection

•Telecom m unications Line Protectors•Transient Barriers•Industrial Protection•Coaxial Surge Protectors•Data Line Protectors•LAN Protectors

LIGHTNING PROTECTION

SOLUTIONS

GROUNDING & BONDING

SOLUTIONS

SURGE PROTECTION

SOLUTIONS

DESIGN SERVICES &

SOLUTIONS

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Grounding

•G rounding Enhancem ent M aterials•Exotherm ic W elded C onnections•G round Rods, C onnectors and SpecialtyG round Electrodes

Bonding

•Signal Reference G rids•Equipotential M esh & Safety M ats•G round Bars•Bulkhead G round Planes•C onnectors•Bonding Straps•Pipeline Bonding & Protection•Flexible Busbars & Braids


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The ERICO Six Poin t Plan of Pro tect ion

provides total f acility protection by

int egrat ing several concept s. The Plan

combines the capture and d issipation

of light ning strikes, the elimination o f

ground loops, and t he protection of

equipment from surges and transients

from multip le sources. ERICO manu-

factu res all of t he products and offers

the expert ise needed to f orm a plan

fo r any facility.

Protect Low VoltageData/ TelecommunicationsCircuits

Protect Incoming AC Power Feeders

SafelyConvey Energyto Ground

Dissipate Energyinto the GroundingSystem

Bond All Ground Points Together

The ERICO Six Point Plan

Capture the li ghtning str ike.

Capture the lightning strike to a known and preferred attachment point using apurpose-designed air terminal system.

Safely convey this energy to ground.

Conduct the energy to the ground safely via a purpose-designed downconductor.

Di ssipate energy i nto the grounding system.

Dissipate energy into a low impedance grounding system.

Bond all ground point s together.

Bond all ground points to eliminate ground loops and create an equipotential plane.

Protect incoming AC power feeders.

Protect equipment from surges and transients on incoming power lines to preventequipment damage and costly operational downtime.

Protect low volt age data/t elecommunicati ons cir cuits.

Protect equipment from surges and transients on incoming telecommunicationsand signal lines to prevent equipment damage and costly operational downtime.

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CAPTURE THE LIGHTNING STRIKE

ERITECH Air Term ina ls

SYSTEM 2000

System 2000•W ell know n technology of passive rods or air term inals, fam iliarto installers

•Air term inals available in alum inum or copper•British Standard com ponent com pliance•Precision m anufacturing ensures easy assem bly and installation•BEN JI com puter-aided design to BS 6651 or N FPA -780

Syste m 2000 Com pon ent s•Lightning and bonding conductors•Air term inals (lightning rods)•Air term inal base or holder•Conductors and fittings•Fasteners and cable holders•Lightning Event Counter to register strikes•Low im pedance grounding grid including ground enhancem entm aterials for difficult areas

•G rounding or earthing conductors, fittings, and ground electrodes

System 3000•Advanced lightning protection system based on latest lightningresearch and technology

•Enhanced area of protection, few er air term inals needed•Econom ical and easy to install•Few er dow nconductors are needed, w hich reduces the cost ofm aterials, labor and roof m aintenance

•Protects all types of structures and “open areas”such as golfcourses, cam puses and stadium s

System 3000 Com pon ent s•DYNA SPH ERE dynam ic air term inal w hich acts as a preferredstrike point

•Purpose-designed ERIC O RE dow nconductor cable to m inim izesideflashing, or conventional dow nconductors

•Lightning Event Counter to register strikes•Low im pedance grounding grid including ground enhancem entm aterials for difficult areas

•G rounding or earthing conductors, fittings and ground electrodes

SYSTEM 2 000SYSTEM 2 000

Air Termin al

RoofConductor

Conductor

FlatSaddle

SYSTEM 3 000SYSTEM 300 0

LightningDown Leader

Upleader

F.R.P. Suppo rt

Inline Coupling

ERICOREDownconductor

MetallicLower Mast

MountingBrackets

DynasphereTermina l

Benji Desig n Sof tw a reThe placem ent of air term inals, w hether passive or active in nature,is a critical part of the lightning protection design process. O nly ifair term inals are placed in the optim um location on a structure, isit possible to achieve an efficient and reliable lightning protectionsystem .

ERIC O’s unique BEN JI com puter aided design (C A D ) program sprovide the highest levels of lightning protection to a variety of

design techniques and standards (BS 6651, N FPA-780, C ollectionVolum e).

Based upon individual site param eters such as structure dim en-sions, elevation, local thunderday activity and structure usage,each BEN JI design is custom ized for the project and provides ele-vation, 3D and plan view s of the installation w ith specificationsand a “Bill of M aterials”including a quotation for com ponents.

SYSTEM 3000

Benji Design

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SAFELY CONVEY THIS ENERGY TO GROUND

O nce the lightning has been captured at a preferred point,the discharge current m ust be conveyed safely to ground.The induction to ancillary conductors, such as nearby coaxialfeeder cables connected directly to equipm ent racks, alsom ust be m inim ized.

ERIC O provides a full range of dow nconductors, includingSm ooth W eave, Ropelay, Flat C opper Strip and our ERIC O RESeries. These conductors convey current to ground safelyand effectively.

Convent ional Conducto r

•Flat Copper Strip offers low im pedance

•Sm ooth W eave cable offers flexibility and easeof installation

System 2000

IMP EDANCE PERFORM ANCE OF CONVENTIONALDOWNCONDUCTOR INSTALLATIONS*

FlatCopperStrip

1m m x 70m m (.039”x2.75”)

Zo = 182WL = 859nH /m

* All of t he figures above are assumin g 6 inches (150mm ) separation between conventional dow nconductor and groun d plane, or isolated condutor.

ERICORE

Smoo th Weave Cable

Flat Strip

C lass 1 & 2Sm ooth W eave and

Ropelay C ableC opper or A lum inum

D iam eters varyZo for largest cable(18m m ) = 239W

L = 1130nH /m

IMPEDANCE PERFORMANCE OF ERICOREDOWNCONDUCTOR INSTALLATIONS*

For Structures 65m36m m (1.42”)

Zo = 4.4WL = 22nH /m

* ERICORE figures are unaff ected by separation, provided o uter sheath iselectrostatically bond ed to the struct ure per installatio n recommendat ions.

Ropelay

ERITECH Do w ncon du cto rs

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ERICORE Condu ct or •Lightning is contained w ithin a 50m m 2

(A pprox. 1/0 AW G ) prim ary conductor

•Lightning is conveyed via a know n and preferred path

•Screening properties help reduce radiated fields andconsequent induction

•Insulation drastically reduces the risk of side flashing

•Structure carries m inim al current

•Easy to retrofit existing structures

ELECTRICALLY COND UCTIVEPLASTIC SHEATH

MAIN CONDU CTOR

MAIN COP PER TAPESCREEN

POLYETHYLENEH.V. INSULATION

SEMI-CONDU CTIVESTRESS CONTROL LAYER

SEMI-CONDUCTIVESTRESS CONTROL LAYER

PLASTIC FILLER TO INCREASEEFFECTIVE DIAMETER OFCORE CONDUCTOR(Inducta nce - skin ef fect)

METAL SADD LES SECURECABLE &BOND O UTERSCREEN TO STRUCTURE

System 3000


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SAFELY CONVEY THIS ENERGY TO GROUND

DISPOSABLE ONE-SHOT

WELD

METAL

DISCSEAT

CONDUCTOR

TAP

HOLE

STARTING

MATERIAL

COVER

CONDUCTOR

CERAMIC

MOLD

GROUND

ROD

FLINT

IGNITOR

ROUND

COVER

TWO-PIECE

FILTER

WELD

METAL

"SMOKELESS" EXOLON

IGNITOR

GRAPHITE

MOLD

DISC

SEAT

TAP

HOLE

WELD

CAVITY

CONDUCTOR

CONDUCTOR

COVER

GRAPHITE

MOLD

WELD

METAL

DISC

SEAT

TAP

HOLE

WELD

CAVITY

CONDUCTOR

CONDUCTOR

STANDARD CADWELD

STARTING

MATERIAL

FLINT

IGNITOR

facility ow ner is assured peace of m ind by know ing hispersonnel and equipm ent are safe from electrical hazardsfor the design life of the facility.

A ll popular C A D W ELD w elds are U L listed* and performbetter than any crim ped or bolted connection becausethe copper-to-copper or copper-to-steel bond is m olecu-

lar, not just surface pressure. These connections are m oreconductive, m ore durable and w on’t loosen.

C onnections are often the w eak point of electrical circuits,especially circuits subjected to corrosion and high current.The capacity of a grounding circuit to protect property andpersonnel depends on the quality of its connections.

G rounding connection m ethods, including com pression,bolted, brazed and w elded, w ill perform w ell for the first

couple of years. O nly the m olecular bond provided by theC A D W ELD exotherm ic w elding system is perm anent. The

Welde d Elect rical Con ne ctions

C A D W ELD connections are availablefor all types of w elded electricalconnections, including EXO LO N“Sm okeless”connections for indooruse and O N E-SHO T connections,w hich are ideal for bondingconductors to ground rods.

* Contact ERICO f or inf ormation on UL-listed pro ducts.

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DISSIPATE ENERGY INTO GROUND

Ground Rod Spli cing

For applications w heredeep-driven ground rods arerequired, ERIC O offers threedurable, reliable m ethodsof splicing.

C A D W ELD connections have

the low est resistance avail-able and w ill never corrode.

ERITEC H com pressioncouplers are easily installedground rod splices. Acom pression joint is form edby driving, so the groundrods can be driven quicklyand easily w ithout the w orryof separation.

ERITEC H threaded couplers allow full contact of a rodpoint w ith the butt end of the preceding rod. They providehigh-strength and corrosion resistance for a low -resistanceconnection.

Ground Rod Connections

C A D W ELD exotherm icw elded connections can beused to w eld to the top orside of a ground rod for

m axim um flexibility w iththe perm anence of everyC A D W ELD connection.

ERITEC H m echanical ground rod connectors for copper-bonded and stainless steel ground rods are U L listed andapproved for direct burial.

ERIC O offers a com plete range of ground rods, groundrod splicing m ethods, and ground rod connections forreliable grounding in nearly any application.

Ground Rod sG round rods serve as theelectrode in an electricalprotection system , dissipatingthe surge energy into theearth. ERITEC H ground rods,the industry leader, arem anufactured to highstandards in a variety ofplatings and styles for aw ide range of applications.

Groun d Electrode s

Flat Copper St rip s

Flexible Flat Copper Strip is superb for grounding by providinglow er inductance and im pedance and five tim es the electricalsurface contact than cable. It is easy to connect and can alsobe used as a dow nconductor in a lightning protection system .Available bare or tinned copper.

Ground Plate Elect rod es

ERIC O G round Plate Electrodes are m anufactured from solidcopper or galvanized steel and provide excellent conductivitythrough large area contact w ith soil. They’re availablein standard, custom andprefabricated sizes,ready-to-splice or teedirectly into your groundgrid. G round PlateElectrodes can alsobe connected tothe ground circuit viaC A D W ELD connections.

ERITECH Che mica l G rou nd Electro de Syste m

ERITEC H chem ical ground electrodes provide a low -im pedance ground in locations of high soil resistivity.Together w ith G EM as backfill, the chem ical groundelectrode system dissipates lightning energy and otherdangerous electrical fault currents, even in sandy orrocky soil conditions.

Features•54 m m (2-1/8") O D Type K copper pipe contains

natural electrolytic salts that perm eate into thesurrounding soil, low ering resistivity.

•A vailable up to 610 cm (20 feet) in continuous lengthand longer rods can be field assem bled using 10 foot(305 cm ) sections.

•L-Shaped rods are installed horizontally in a trenchw here it is im practical to auger deep vertical holes.

•Easy connection to conductors using the pigtail.(U p or Dow n orientation)

•UL & C U L Listed to U L467 and C SA C 22.2 N o.41respectively.

•C ustom assem blies available.

VERTICAL

INSTALLATION

HORIZONTAL

INSTALLATION

ACCESS WELL

UL NAME PLATE UL NAME PLATE

BENTONITE CLAY

ELECTROLYTIC ROOTS

GEM GROUND ENHANCEMENT MATERIAL

CADWELD CONNECTIONS

CHEMICAL GROUND ELECTRODE

FACTORY ATTACHED PIGTAILCOND UCTOR UP ORIENTATION

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BOND ALL GROUNDS TOGETHER

A

B

C

D

D

E

F

H

J

G

K

A

B

C

D

E

F

G

H

J

K

Because signal voltages are low , their sensitivity to tran-sient noise is very high (typically 1 volt for digital system s).N orm al shock and vibrations jar m echanical connections,creating electronic noise w hich can be coupled into thesignal circuits, leading to false data or dam age to circuits.The Signal Reference G rid how ever, uses w elded connec-

tions, w hich virtually elim inates this situation.

Signal Reference Grid

For proper grounding and bonding of sensitive electronicsystem s, such as com puter and telecom m unications instal-lations, all frequencies m ust be considered, from D C toover 500 M H z.

The ERITEC H Signal Reference G rid is a low im pedancenetw ork of conductors w hich establish an equipotential

plane for high frequency, low voltage digital signals.

ERITECH Pre-en g inee red Wire Mesh a nd Ma ts

Pre-engineered w ire m eshes are a convenient, efficient w ayto im prove grounding in high voltage installations and w herelarge area grounds are required.

GROUND

CONDUCTOR

MESH

CADWELD®

CONNECTIONS

ERITECH Pre-eng ineered w ire mesh.

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BOND ALL GROUNDS TOGETHER

Ground Potential Equalization

C reating an equipotential ground plane under transientconditions is essential for the safety of equipm ent andpersonnel. W hen lightning or other transient voltages

occur, how ever, potential differences betw een the groundsare inevitable and can be dangerous. ERIC O’s groundingsystem experience can help you m inim ize the threat.

DOWNCONDUCTOR

ACCESSWELL

GROUND BAREQUIPMENT

GROUND PLATE

TELECOMGROUND

LIGHTNINGSYSTEM

GROUND

POWERDISTRIBUTION

GROUND

GROUNDELECTRODE

CONDUCTOR

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PROTECT INCOMING AC POWER FEEDERS

TVSS Core Techno log y

Surge Prot ection

Electrical and electronic equipm ent in com puting, com m u-nications and control/alarm installations are highly suscep-tible to dam age from pow er transients. These im pulses m aybe generated externally to the facility by direct or inducedlightning, operation of utility substations or other sw itch-ing sources. Internally a larger num ber of sm aller im pulses

are generated by operation of nearby electrical equipm ent.

The cost of lightning and surge dam age can be very sub-stantial. The cost includes equipm ent repair/replacem entcosts, cost of w asted production m aterial, cost of opera-tional dow ntim e and the cost of foregone opportunities.The U SA N ational Safety Institute estim ates the cost oflightning dam age to exceed $4-5 billion per year.

Effective protection is essential if the risk of equipm entdam age and operational dow ntim e due to overvoltagesurge and transient conditions is to be avoided. ERIC O hasdeveloped a range of Transient Voltage Surge Suppressor(TV SS) products to m eet the diversity of operating condi-tions found in its w orld m arket. These include geographicalisokeraunic levels,different types of pow er distribution sys-

tem s and localstandards requirem ents. These productsem ploy m any different technologies to achieve the desiredoutcom e. O ften, a hybrid of m ore than one technologyis used w here the advantage of each can be exploited.A s an exam ple, such hybrid design m ay be used to optim izeboth speed and surge handling capability –param etersseldom found to coexist in a single TVSS technology.

The Metal Oxide Varistor (MOV) is an effective surge arrester, which has proven its worth as a robust TVSS techno logy over man y years.

Such devices are designed to rapidly limit overvoltage surge condition s

and t o dir ect th e excess energy safely to ground.

A newer technology involves the use of Silicon Avalanche Diodes (SADs).These devices are know n f or

their extrem ely fast respon se

time – this t ranslates into a low -residual voltage – but are very poor in their energy handling capabilities and unsuitable as primary point-of -entry prot ective devices.

The pat ented CRITECTransient Discriminating Techno logy from ERICO not only addresses the danger of TVSS induced

fire, but it also provides one of t he lowest SVR (Supressed Volt age Rating) of any primary protection product on the market. This makes it an ideal technolo gy base for TVSS development.

OU TLETS AND LONG

BRANCH CIRCUITS

FEEDERS AND SHO RT

BRANCH CIRCU ITS

OUTSIDE AND

SERVICE ENTRANCE

SPD LOCATION CATEGORIES, ANSI/ IEEE C62.41

LOCATIONCATEGORY

BRANCH PANEL TVSSSERVICE ENTRANCE TVSS

CA T C CA T B CA T A

VERY EXPOSED

LOCATIONS

PRODUCT STYLE

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PROTECT INCOMING AC POWER FEEDERS

Primary and Secondary Facility Protection

Primary Protection Secondary Protection

In practice, there is a need for a w ider range of products andtechnologies to satisfy m ore than the three A N SI/IEEE C 62.41recom m ended locations and surge ratings. To provide com -prehensive protection for the diverse needs of C om m ercial& Industrial, Utility, D efense and C ellular & W ireless facilities,ERIC O offers a range of surge protection devices and tech-

nologies.

M ost facility protection utilizes a high energy prim ary SPD atthe service entrance as the first line of defense. This is follow edby low er rated secondary protection devices at selected branchdistribution panels. The secondary protection fulfills tw o roles -low ering the prim ary protection’s residual voltage as w ell asproviding local protection against internally generated transients.

Protection for Process Control and Automation Equipment

M odern industry is highly reliant on electronic autom ation toincrease productivity and safety. Program m able Logic C ontrollers(PLC s) and SC A D A are now com m on place in m ost m anufac-turing facilities, and m icroprocessors can be found im bedded

in m any industrial m achines, security & fire alarm s,

tim e clocks and inventory tracking tools. H ow ever, the pow ercircuits of m ost industries are severely polluted w ith electricaldisturbances caused by the sw itching of inductive loads,electrical noise from m otor speed controllers and even the

occasional induced lightning im pulse.

Spikes from motorspeed controls

Utility switching

Lightning

Sw itching of nearbyinductive load s

TDF

Cleanprotectedp o w e r

Ra w pollutedp o w e r

Arcing w hilecircuit brea kers

clea r faults

EMI/RFI no ise

PLCPower factor

cont rol switching

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PROTECT LOW VOLTAGE DATA/TELECOMMUNICATIONS CIRCUITS

Da ta , Con tro l & Sig na ling Prote ction

Transients and surges caused by such events as lightningstrikes, the sw itching of inductive loads and even staticdischarge, can be coupled on to low voltage com m unicationcables. Telephone lines, industrial process control lines, coaxialfeeders, and com puter netw orks are all vulnerable to surges,w hich m ay be up to 20kA in certain risk environm ents.

ERIC O offers m ulti-stage hybrid topologies to ensure both anadequate surge handling capability together w ith a very lowresidual voltage.

PROCESS CO NTROL

Low Voltag e (DC or AC)Secondary Power Supply

to remote location

LocalSensor

Control /DataSignal to

Local Location

Control /Data Signal to remote location

Mains Power Feed

Primary Pow er

Protection (SRF)

Power Distribution

Board

Low Voltag e (DC or AC)Secondary Pow er Supply

to Local Location

Line Surge Prote ctor

LineSurgeProtector

Transient Barrier

Transient Barrier

SecondaryPower Protection

Transient Barrier

Transient Barrier

Transient Barrier

Modem

CENTRAL LOCATION

LCP

Transient Barrier

Load CellProtectors

Sensor

Sensor

• Grounding connect ions are not shown

Weighbridge

Other Sensors

LCP

Transient Barrier

MODEM

LSP LSP

LOAD CELLINSTRUMENT

PROGRAM

LOGIC

CONTROLLER

•Prim ary protection products using gas discharge tubesprovide cost effective solutions for less sensitive equipm ent.

•Prem ium tw o-stage technologies, incorporating both gasarresters w ith secondary solid state clam ping com ponents,ensure a higher level of perform ance w ith low er residual voltages.

•Robust three-stage protectors, like the U niversal TransientBarriers, incorporate gas arresters, m etal oxide varistors andsolid state clam ping com ponents to provide high energyprotection for critical environm ents such as industrial processcontrol.

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PROTECT LOW VOLTAGE DATA/TELECOMMUNICATIONS CIRCUITS

Telecomm unica t io ns Prot ection

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The C RITEC telecom m unications equipm ent protectorsprovide a range of transient and operating perform ancecharacteristics to protect telecom m unications term inaland interface equipm ent from transients on telecom -m unications lines. The C RITEC line of devices includesm odels designed to protect analogue voice frequency

equipm ent, and high speed digital circuits, providingoptim um protection irrespective of the type of circuit inuse.

Telecom m unications protection devices provide a clearbenefit to the netw ork operator by reducing equipm entdam age and system dow n tim e. Profits can be increasedby reducing the costs of system m aintenance and eco-nom ic losses.

The telecom m unications protectors should be integratedw ith Pow er Filters to provide a m ore com plete protectionschem e for PABX, office telephone or for sw itchingcenters.


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TOTAL SOLUTIONS AND SERVICES

Research and Product Development

ERIC O has a high com m itm ent to in-house research andproduct developm ent in order to better understand thelightning process and electrical phenom ena. This research

has led to the developm ent of a num ber of techniques,w ith granting of international patents, and num erous,innovative product applications.

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•ERIC O’s constant search for innovative lightning solutions hasbeen undertaken in high voltage laboratories in Europe, N orthA m erica, Indonesia, A ustralia and the U SA .

•The com pany has pioneered a 200kV generator capable ofproducing a com puter-controlled, m onotonically increasingw aveform to sim ulate the “e-field”of a naturally-occurring“stepped dow nleader”.Electric field rise tim es for this genera-tor can be up to 1 kV/m /µs.

•H igh im pulse current surge generators are used to test SPDproduct perform ance and com pliance to various internationalstandards.

•M any products have U L (U nderw riters’Laboratories) listing,C E com pliance, or have been granted other accredited organi-zation approval for distribution internationally.

The quality of ERIC O’s engineering team is recognized by engi-neering institutions and the acceptance of technical papersat prem ier lightning protection, surge protection and groundingconferences around the w orld.

The engineers of ERIC O have extensive experience on a w idenum ber of International Standards Com m itees and O rganizationsincluding:

•IEC - (International Electrotechnical C om m ission)IEC TC 81 Lightning ProtectionIEC SC 37A Low -voltage surge protective devicesIEC SC 37B Specific com ponents for surge arrestersand surge protection devicesIEC TC 64 Electrical installations of buildings

•IEEE - (Institution of Electrical and Electronic Engineers)IEEE - Std 80 W orking G roup - IEEE G uide for safetyin substation groundingIEEE - Std 587 C om m ittee - IEEE G uide for surge voltagesin low voltage A C pow er circuits (ANSI C 62-41)IEEE - Std 837 W orking G roup - IEEE Standard for

qualifying perm anent connections used in substationgroundingIEEE - Std 998 W orking G roup - IEEE G uide for directlightning stroke shielding of substationsIEEE - Std 1100-IEEE Recom m ended practice forpow ering and grounding sensitive electronic equipm ent

•BS6651 - Lightning Protection•SA A (Standards A ustralia)

EL/24 Lightning ProtectionEL 7/3/1 Low Voltage Surge A rrestersTE 20 Telecom m unications O vervoltage Protection

•NFPA - N ational Fire Protection A ssociation - N FPA-780•NEM A - 5V S Low Voltage Surge Protection D evices


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App lica t ion s Eng ineering Services/Tra ining

ERIC O has 100 years experience in design and productdevelopm ent for railw ay, utility and industrial protectionand grounding. C om bined w ith over 20 years experience

in lightning and transient overvoltage protection forfacilities, ERIC O can assist w ith providing the solutionfor all types of problem s in any industry sector.

Services provided by ERIC O include:

•Technical and Risk-Benefit Analysis•Specification and advice on application of technologies•Design and m anufacture of product specials•C om puter-assisted installation design(lightning protection and grounding)

•Product supply•Installation•Earth System A nalysis•Com m issioning•Testing•C ertification•Training•Servicing and M aintenance Reporting Training C ourses

To support our custom ers, training courses and educational

sem inars are regularly conducted in various locations aroundthe w orld. These can be tailored to suit your specific require-m ents.

Topics include:

•Theory of lightning form ation•Air term inal and lightning dow nconductor technology•G rounding for substations•G rounding for electronic equipm ent including com puterand telecom m unications facilities

•Pow er line protection, including shunt and series protection•Data and C om m unication equipm ent protection•Installation procedures•Lightning Safety

Transformer

Ground Gr id

PROGRAMLOGICCONTROLLER

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Ca th od ic Prote ction , Bond ing & Surge Prote ction

For pip elin es, ref iner ies

and w ater supply in frastru ctu re

Pipelines, refineries and w ater supply infrastructure facilitiesare sophisticated and com plex netw orks of m etering,control, instrum entation and com m unications equipm ent.

U nfortunately, these facilities and especially pipelines, actas very efficient collectors of lightning energy. C urrent fromstrikes that occur near pipelines w ill travel m any m ilesbecause the pipes have been w ell insulated to m inim izecorrosion. The conflicting requirem ents betw een corrosionprotection and surge protection can be resolved w ith therange of ERIC O corrosion protection and surge protectionproducts. In both cases, a high degree of reliability isrequired for equipm ent and system s designed to last fordecades. ERIC O is know n w orldw ide for m eeting theserequirem ents.

Transient current and energy can be very large and m ust belim ited to prevent dam age to equipm ent and the corrosionprotection system s. Transient current typically dissipates inless than a few m illiseconds. C orrosion protection of pipes,

tanks and related equipm ent requires a steady DC voltage,low in am plitude but on-line for m any decades w ith virtu-ally no interruption. Both surge protection and corrosionprotection system s m ust be and can be designed to w ork

TO

METERINGAND

CONTROL

SENSOR

CRITEC

UNIVERSALTRANSIENT

BARRIER

ERITECHSAFETY MAT

VALVE OR OTHEREQUIPMENT

OPERATED OR

MO NITORED BYPERSONNEL

INSULATEDJOINT

CRITEC

INSULATED JOINTPROTECTOR

CADWELDBOND STRAP

CADWELDBOND STRAP

JOINT

IMPRESSEDCURRENT

ANODE

JOINT

CADWELD

CONNECTION

SACRIFICIAL

ANODE

TESTSTATION

+

-

CRITEC

DC SURGESUPPRESSION

ACINPUT

RECTIFIER

CRITEC

AC SURGESUPPRESSION

together. O ne com m on feature is the requirem ent that allm etal objects sharing the sam e cathodic protection systemm ust be perm anently bonded together. M etal objects on

different cathodic protection system s m ay be isolated fromeach other but not from earth ground. ERIC O can ensurethat m ultiple cathodic protection system s rem ain separatedbut w ork together before and after high voltage transients.

Rectifiers used on im pressed current system s are especiallyvulnerable. Failures due to surges can be virtually elim inatedw ith ERIC O surge suppression devices. This protection isavailable for the A C input and D C output of these rectifiers.

ERIC O surge protection devices are available for instrum enta-tion, com puting and com m unication applications.

To protect people in the vicinity of m anually operatedequipm ent, ERIC O safety m ats m ust be considered. This isespecially true if pow er system transients such as faults canraise the voltage of the equipm ent.

ERIC O also has m echanical connectors for selected cathodicprotection applications.

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CADWELDOnline Cat a logThe C A D W ELD interactive catalog w ill helpdeterm ine the right m old and m aterials for

practically any grounding or bonding appli-cation.

This interactive catalog presents all C A D W ELDm old styles in an easy to understand pictorialform at. Begin by choosing a connectiontype. The easy-to-navigate catalog thenallow s the user to select a connection fam ilyas w ell as run and tap sizes. The result pro-vides a m old part num ber, required w eldm etal size and quantity, and required andrecom m ended parts. If selected, m old fam iliesthat provide alternatives to m aking theconnection for the specified conductors arealso displayed.

ERICO WebsiteERIC O has updated its w ebsite to offer easiernavigation –giving custom ers the inform ationthat they need right at their figertips.

N ow search the site via ERIC O ’s w ell-know n brandnam es, by ERIC O division, alphabetical productlisting, or industry. The easy-to-access LiteratureLibrary provides pertinent literature in an easy-to-dow nload PD F form at. In the N ew s & Eventssection, custom ers can find new product updates,new product announcem ents and lists of helpfulsem inars.

O ther features include:

•Faster access to product inform ation throughim proved navigation

•Product specifications

•A list of upcom ing events and industry tradeshow s

•Locations and contact inform ation for ERIC O

offices around the w orld


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AUSTRALIA6 Chilvers Roa d

P.O. Box 148

Tho rnleig h (Sydne y) NSW 2120

Australia

Tel. 61-2-9479-8500

Fax 61-2-9484-9188

BELGIUMLambroekstraat 5A

B-1831 Diege m

Belgium

Tel . 32-14-69-96-88

Fax 32-14-69-96-90

CANADA34600 Solon Rao d

Solon, Ohio 44139

U.S.A.

Tel. 1-800-677-9089Fax 1-800-677-8131

CHILEAlcantara 200, piso 6 Of. 17

Las Condes, Santiag o

Chile

Tel. 56-2-370-2908

Fax 56-2-370-2914

DENMARK Carlsgat an 12 A

SE-211 20 Malmö

Sweden

Tel. 45-46-19-1941

Fax 45-46-19-1942

FRANCERue Benoit Fourneyron Z.I. SudBoite Postale 31

42161 Andrezieux Cedex

France

Tel. 33-4-7736-5656

Fax 33-4-7755-3789

GERMANY D-66851 Schwa nenm uehle

Germany

Tel. 49-6307-918-10

Fax 49-6307-918-150

HONG KONGUnit 1, 2nd Floor, Block A

Po Yip Building

62-70 Texa co Roa d

Tsuen Wa n, New Territ ories

Hong Kong

Tel. 852-2764-8808

Fax 852-2764-4486

HUNGARY Ceglédi út 1-3

1107 Budapest

Hungary

Tel . 36-1-431-3464

Fax 36-1-431-3471

INDONESIAWisma Da namon Aetna Life, 19th Floor

Jalan Jend, Sudirman Kav. 45-46

Jakarta 12930

Indonesia

Tel . 62-21-575-0941

Fax 62-21-575-0942

ITALY Via Pavia 69

15100 Alessan dria

Italy

Tel. 39-01-3122-2054Fax 39-01-3122-2879

MEXICOMelchor Ocampo 193

Torre A piso 13

Col. Veronica Anzures

11300 Mexico D .F.

Mexico

Tel. 52-55-5260-5991

Fax 52-55-5260-3310

NETHERLANDSPostbus 487

NL - 5000 AL Tilbu rg

Netherlands

Tel . 31-13-583-5400

Fax 31-13-583-5499

NORWAY Postboks 148NO-1325 Lysa ker

Norway

Tel. 47-67-53-1200

Fax 47-67-12-4268

SINGAPORE16 Wan Lee Road

Jurong Industrial Estate

Singapore 627946

Tel. 65-6-268-3433

Fax 65-6-268-1389

SPAINC/Provenza 288, Pral.

08008 Barcelon a

Spain

Tel. 34-93-467-7726

Fax 34-93-467-7725

SWEDENCarlsgat an 12 A

SE-211 20 Ma lmö

Sweden

Tel. 46-40-611-1360

Fax 46-40-611-9415

SWITZERLANDPra Pury 7d

3280 Murten

Switzerland

Tel. 41-26-672-9999Fax 41-26-672-9998

THAILANDLevel 23, M. Tha i Tow er, All Sea sons Pla ce

87 Wireless Road

Pathumw an, Bangkok 10330

Thailan d

Tel. 66-2-627-9037

Fax 66-2-627-9168

UNITEDKINGDOM52 Milford RoadReading , Berkshire RG1 8LJ

United Kingdom

Tel. 44-118-958-8386

Fax 44-118-959-4856

UNITEDSTATES34600 Solon Roa d

Solon, Ohio 44139

U.S.A.

Tel. 1-440-248-0100

Fax 1-440-248-0723

POLAND54-613 Wrocla w

ul. Krzemieniecka 17

Poland

Tel. 48-71-357-4827

Fax 48-71-374-4043

BRAZILRua D. Pedro Henrique de Orleans

E Braganca, 276

Vila Ja gua ra CEP 05117-000

Sao Paulo

Brazil

Tel. 55-11-3621-4111

Fax 55-11-3621-4066

TURKEY Insaat Ma lzemeleri, Perpa Ticaret Merkezi

B Blok, 5 Kat, 5. Cadde. No. 297

Istanbu l 80270

Turke y

Tel. 90-212-210-0825

Fax 90-212-210-0827

www.erico.com

Typical Lightning Protection Products

Documents

Transcript of Typical Lightning Protection Products