Bsi bs en 62282 3 3 2008

BRITISH STANDARD BS EN 62282 3 3 2008 Fuel cell technologies — Part 3 3 Stationary fuel cell power systems — Installation ICS 27 070 ?? ? ??????? ? ??????? ? ??? ? ?????????? ? ?????? ? ?? ? ?????????[.]

Fuel cell

ICS 2 0 0

This Bri sh Stan ard was

published u der the authoriy

of the Stan ards Policy an

Strate y Commi e

on 3 Se temb r 2 0

© BSI 2 0

ISBN 9 8 0 5 0 5 7 4 5

This British Stand rd is the UK implementation of EN 62 82-3-3:20 8 It is

identical to IEC 62 82-3-3:20 7

The UK p rticip tion in its prep ration was entrusted to Tech ical Commit e

GEL/ 10 , Fuel cel tech olog ies

A l st of org anizations represented on this commit e can be obtained on

request to its sec etary

This publ cation do s not purport to include al the neces ary provisions of a

contract User are responsible for its cor ect a pl cation

Compl anc with a British Standard cannot c nfer im munity f om

legal obl gations

Amendm ents/c r ig enda is ued sinc publcation

NORME EUROPÉENNE

February 2008

Euro e n Committee for Elec trot ec hnical Stan ardization

Comité Euro é n de Normalsat ion Elec trotec niq e

Euro äis hes Komite für Elek trot ec hnische Normu g

Ce ntra l Secre ta ria t: ru d S ta ssa rt 35 , B - 10 5 0 B ru s ls

© 2 0 CENELEC - All rig ts of e ploit at io in a y form a d b a y me n re erv ed wo dwid for CENELEC memb rs

R ef No EN 6 2 2-3-3:2 0 E

ICS 2 0 0

En ls version

Fuel cel t echnologies -

Part 3- 3: St at ionary fuel cel power syst ems -

Inst al at ion

Technologies des pies à c mbus ble -

Part ie 3-3: Syst èmes à pies

à c mbus ble stat io naires -

Inst alat ion

(CEI 62282-3-3:2007)

Brennstofz elent echnologien -

Tei 3-3: Stat ionäre

Brennstofz len-Energiesyst eme -

Er ic ht ung

(IEC 62282-3-3:20 7)

This Euro e n Stan ard was a pro e b CENELEC o 2 0 -0 -01 CENELEC memb rs are b u d to comply

wit h the CEN/CENELEC Intern l Reg latio s which s p late t he con itio s for givin this Euro e n Stan ard

the st atus of a n tio al stan ard witho t a y alteratio

Up-to-d t e lsts a d biblo ra hic al refere ces conc ernin such n t io al stan ards ma b o t ain d o

a plc atio t o the Ce t ral Secretariat or to a y CENELEC memb r

This Euro e n Stan ard e ists in t hre oficial versio s (En lsh, Fre ch, Germa ) A v rsio in a y ot her

la g a e ma e b tra slatio u d r the resp nsibi ty of a CENELEC memb r int o its own la g a e a d n t ifie

to the Ce tral Secret ariat h s th same status as th oficial v rsio s

CENELEC memb rs are the n tio al elec trotec hnical c ommitt ees of Austria, Belgium, Bulg ria, Cy rus, the

Cz ech Rep blc , De mark, Esto ia, Finla d, Fra ce, Germa y, Gre ce, Hu g ry, Ic ela d, Irela d, Italy, L t via,

Lithu nia, L x mb urg, Malta, the Netherla ds, Norwa , Pola d, Portug l, Roma ia, Slovakia, Slovenia, Sp in,

Swe e , Swit zerla d a d the United Kin d m

The t ex t of doc ment 10 /15 /FDIS, fut ure edit ion 1 of IEC 6 2 2-3-3, pre ared by IEC TC 10 , Fuel cel

t ec nologies, w as s bmit t ed t o t he IEC-CENELEC p ralel vot e an was a prov ed by CENELEC as

EN 6 2 2-3-3 on 2 0 -0 -01

The folowin dat es w ere fixed:

– lat est date by whic the EN has t o b implement ed

at nat ional level by publcat ion of an identical

– lat est date by whic the national st an ar ds conflct in

Annex ZA has b en ad ed by CENELEC

Endorsement notice

The t ext of t he Int ernational Stan ard IEC 6 2 2-3-3:2 0 was a proved by CENELEC as a Euro e n

St an ard w ithout an modificat ion

INTRODUCTION 5

1 Sco e .6

2 Normative ref eren es .7

3 Terms an definition 7

4 General safety req irements an strategy 9

5 Sitin con ideration 10 5.1 General sitin 10 5.2 Outdo r in tal ation 1

5 3 In o r in tal ation 1

5.3.1 L rge f uel cel p wer s stems 1

5.3.2 Smal fuel cel p wer s stems 1

5.4 Ro f to in tal ation 1

6 Venti ation an ex au t 1

6.1 General 1

6.2 Venti ation 1

6.3 Ex au t s stem 12

6.4 Proces purgin an ventin 12

7 Fire protection an gas detection 12

7.1 Fire protection an detection 12

7.1.1 Site fire protection 12

7.1.2 Combu tible gas detection (in o r in tal ation only) 12

7.2 Fire prevention an emergen y plan in 13

8 Intercon ection with site interf aces 13

8.1 General 13

8.2 Connection to fuel s p l es – General 13

8.3 Fuel s ut of f an pipin 13

8.4 Con ection to au i ary media s p ly an media disp sal 13

8.4.1 Combu tible au i ary gases 13

8.4.2 Non combu tible or inert au i ary gases 13

8.4.3 Water 14

8.4.4 Waste water disp sal 14

8.4.5 Dis harge pip 14

9 En ironmental req irements 14

10 Ap roval tests .14

10.1 Gas le kage .14

10.2 Site sp cif i s utdown devices 14

1 Maintenan e tests 14

12 Doc mentation 14

12.1 Markin s an in tru tion 14

12.2 In p ction c ec lst 15

12.3 In tal ation man al 15

12.4 User’s inf ormation man al 15

12.5 Maintenan e man al 15

An ex ZA (normative) Normative referen es to international publcation with their

coresp n in Euro e n publ cation 16

Fig re 1 – Fuel cel p wer s stem .6

INTRODUCTION

This International Stan ard covers the in tal ation of stationary f uel cel p wer s stems that

are bui t in compl an e with IEC 6 2 2-3-1

The req irements of this stan ard are not inten ed to con train in ovation In tal ation

employin materials an /or method dif ferin f om those detai ed in this stan ard may b

examined an tested ac ordin to the intent of the req irements an , if fou d to b

s bstantial y eq ivalent, may b con idered to comply with the stan ard

FUEL CELL TECHNOLOGIES –

Part 3-3: Stationary fuel cel power systems –

Instal ation

This p rt of IEC 6 2 2 provides minimum saf ety req irements f or the in talation of in o r

an outdoor stationary fuel cel p wer s stems in compl an e with IEC 6 2 2-3-1 an a pl es

to the in tal ation of the mentioned s stems

– inten ed f or electrical con ection to main directly or with a tran f er switc ,

– inten ed f or a stan -alone p wer distribution s stem,

– inten ed to provide AC or DC p wer,

– with or without the a i ty to recover u eful he t

This p rt of IEC 6 2 2 do s not cover:

– f uel s p ly an /or fuel storage s stems,

– p wer con ector to the grid,

– p rta le f uel cel p wer s stems,

– pro ulsion fuel cel p wer s stems,

– APU (au i ary p wer u its) a pl cation

A typical stationary fuel cel p wer s stem in tal ation is re resented in Fig re 1

Sytem b u d ry

Pow er in ut s

R ec ov red h at

Wa t e h at

Fu l

Us a le p w er

electric l

Oxid nt

Discharg

w at er

Wat er

In rt g s

Ex ha st g s s

v ent ilat io

Ve t ilatio

EMD

v ibrat io ,

win , rain,

te p rature

et c

Int ern l p w er

n e s

Pow er

c on it io in

sst e

Fu l

cel

mo ule

Fu l

pro e sin

s st e

A ut o a c

control

sst e

Ve t ilat io

sst e

Wat er

t re t me t

s st e

Th rmal

ma a eme t

sst e

EMI

n is

v ibrat io

Oxid nt

pro e sin

s st e

On o rd

e erg

st orag

Elec t ric l

Th rmal

IEC 2208/0

Figure 1 – Fuel c l power s stem

Fuel cel p wer s stems are divided into two categories:

– Smal s stems

– L rge s stems

Definition are given in Clau e 3

The f ol owin ref eren ed doc ments are in isp n a le for the a plcation of this doc ment

For dated ref eren es, only the edition cited a pl es F r u dated referen es, the latest edition

of the referen ed doc ment (in lu in any amen ments) a pl es

IEC 6 0 9-10, El ectric l a p ratus for e pl osiv g s at mosp eres – Part 10: Cl as ific tion of

h z rd ous are s

IEC 6151 -3, Fun tion l safety – Safety instrume ted systems for the pro es industry se t or

– P art 3: Guid an e for th d eterminat ion of the re uired safety integrity l evels

IEC 617 9-4: Ele tric l a p ratus for th d etection a d me sureme t of fl amma le g ses –

Part 4: Perorma c re uireme ts for gro p I a p rat us ind ic ting u to 10 % l ower

expl osiv l imit

IEC 617 9-6: Ele tric l a p ratus for th d etection a d me sureme t of fl amma le g ses –

Part 6: Guide for t he sele t io , inst al l t ion, use a d mainten n e of a p rat us for the

det ecti on a d me sureme t of fl amma le g ses

IEC 618 2, Ha ard a d o era ility st ud ies (HAZOP st ud ies) – Ap l i atio g id e

IEC 6 2 2-3-1, Fuel c l l tec n l ogies – P art 3-1: Station ry fu l c l l p wer syst ems – Safety

ISO 14121, Safety of ma hin ry – P rinciples ofrisk as es me t

3 Terms and def initions

For the purp ses of this doc ment, the f ol owin terms an definition a ply

3.1

a c s ible (operator a c s are )

are to whic , u der normal o eratin con ition , one of the f ol owin a pl es:

– ac es can b gained without the u e of a to l;

– the me n of ac es are del b rately provided to the o erator;

– the o erator is in tru ted to enter regardles of whether or not a to l is ne ded to gain

ac es

NOT Th terms "a c s " a d "a c s ible", u le s q alfie , relate to o erator a c s are a d fin d a o e

3.2

ac e ta le to the authority havin juris iction

3.3

a thority ha ing juris iction

AHJ

organization, of fice, or in ivid al resp n ible for enf orcin the req irements of a code or

stan ard, or for a provin eq ipment, materials, an in tal ation, or a proced re

3.4

e h ust

gases removed fom a f uel cel p wer s stem an not reu ed

3.5

e h ust s stem

gas-con eyin s stem f or movin gases f om a source to a p int of dis harge

3.6

f ire pre e tion

me s res directed toward avoidin the in e tion of f ire

3.7

f ire prote tion

method of providin for fire control or fire extin uis ment

3.8

f ire ris e aluation

detai ed en ine rin review of a plant's con tru tion f eatures an o eratin proces

con u ted to en ure that a pl ca le f ire prevention an f ire protection req irements f or

safeg ardin l f e an phy ical pro erty are met

3.9

f orc d v nti ation

f low of air or gas cre ted by a f an, blower, or other mec anical me n that wi pu h or in u e

the gas stre m throu h a venti ation s stem

3.10

in oor instal ation

f uel cel p wer s stem completely s r ou ded an en losed by wal s, a ro f , and a floor

3.1

in tal ation

– location where a fuel cel p wer s stem is sited as a u it or bui t as an as embly

– act to in tal a fuel cel p wer s stem

3.12

large fuel c l power s stems

f uel cel p wer s stems havin a net electrical output of more than 10 kW

3.13

lower f lammable l mit

LFL

lowest con entration of a f lamma le gas/va our in air in whic flame is pro agated

3.14

natural v nti ation

f low of air or gases cre ted by the dif f eren e in the pres ures or gas den ities b twe n the

outside an in ide of a vent, ro m, or sp ce

3.15

non-combustible

not ca a le of s p ortin combu tion in ac ordan e with ISO 1 8 or eq ivalent method

3.16

outsid or outdoor instal ation

p wer s stem in tal ation that is not an in o r in tal ation When p rmited by local or national

reg lation , an o en-air stru ture with p rtial ro f an /or wal s may b con idered an outdo r

in talation

3.17

portable f uel c l power s stem

f uel cel p wer s stem whic is inten ed to b moved whi e in o eration an not fastened or

otherwise sec red to a sp cific location

3.18

roof top instal ation

p wer s stem in tal ation located on the ro f of a bui din

3.19

room v nti ation

air s p ly to the ro m for co l n , he tin , makeup atmosphere, safety venti ation

NOT This air c n b ta e fom in o rs or o td ors

3.2

s al

in icates a man atory req irement

3.21

s ould

in icates a recommen ation or that whic is ad ised but not req ired

3.2

smal fuel c l power s stem

f uel cel p wer s stem havin a net electrical output up to 10 kW

3.2

stationary

p rmanently con ected an fixed in place

4 General saf ety re uirements a d strategy

The general saf ety strategy of this p rt of IEC 6 2 2 is con istent with the saf ety strateg of

IEC 6 2 2-3-1

The stan ard is lmited to those con ition that can le d to p rsonnel hazard or damage to

eq ipment or pro erty external to the f uel cel p wer s stem

Based on the q antity of f uel an other stored energ (e.g f lamma le materials, pres urized

media, electrical energ , mec anical energ , etc.) within the fuel cel p wer s stems there is

a ne d to el minate p tential hazard The general safety strateg for the in tal ation of the

f uel cel p wer s stems s al b esta ls ed ac ordin to the fol owin seq en e:

– Avoid the p s ible rele se of combu tible an /or toxic gases an p l utant gases, l q id

an sol d

– El minate hazard outside the f uel cel p wer s stem an the related in tal ation, when

s c energ or gases are rele sed ne rly in tantane u ly

– Provide a pro riate safety markin s, con ernin the remainin ris s of hazard

Usin the tec niq es des rib d a ove, sp cial care s al b taken to ad res the f ol owin :

– Mec anical hazard - s arp s rf aces, trip in hazard , movin mas es an in ta i ty,

stren th of materials, an l q id or gases u der pres ure

– Electrical hazard - contact of p rson with l ve p rts, s ort circ its, hig voltage

– Thermal hazard - hot s races, rele se of hig temp rature l q id or gases, thermal

f atig e

– Fire an explosion hazard - f lamma le gases or lq id , p tential f or explosive mixtures

d rin normal or a normal o eratin con ition , p tential f or explosive mixtures d rin

f ault con ition

– Malfu ction hazard - u safe o eration of in tal ation related eq ipment d e to fai ures of

software, control circ it or protective/safety comp nents or in or ect man f acturin or

miso eration

– Material an s bstan e hazard - material deterioration, cor osion, embrit lement, toxic

rele ses, c okin hazard (e.g by s p rsedin , re lacin ox gen by inert purge gases)

– Waste disp sal hazard - disp sal of toxic materials, rec clng, disp sal of f lamma le

l q id or gases

– En ironmental hazard - u safe o eration in hot cold en ironments, rain, f lo din , win ,

e rth uake, external f ire, smoke

For large p wer s stems, the pre aration for in tal ation proces s al en ure that:

– al forese a le hazard , hazardou situation an events as ociated with the fuel cel

p wer s stem In tal ation have b en identified,

– the ris for e c of these hazard has b en estimated or derived f om the combination of

pro a i ty of oc ur en e of the hazard an of its f orese a le severity Guidan e may b

f ou d in ISO 14121, IEC 618 2, or IEC 6151 -3 as a pl ca le, or eq ivalent,

– the pro a i ty an severity of e c ris have b en red ced as f ar as practica le,

– the neces ary protection me s res in relation to ris s that can ot b el minated have b en

taken (provision of warnin an saf ety devices)

A safety analy is f or saf ety s utdown s stems, that have otherwise not b en evaluated or

certified by a third p rty, e g an i ary site eq ipment an interf aces to the a proved fuel cel

p wer s stem, s al b p r ormed

5 Siting considerations

5.1 Ge eral siting

The fuel cel p wer s stem s al comply with IEC 6 2 2-3-1

A fuel cel p wer s stem(s) an as ociated eq ipment, comp nents, an controls s al b

sited an in tal ed in ac ordan e with the man f acturer’s in tru tion an me t the fol owin

req irements:

– It s al b placed an fixed f irmly so that it wi not b e si y moved, to pled, or dislocated

– It s al b located an sec red as neces ary so that the s stem an eq ipment wi not b

ad ersely af fected by win , an seismic events It s al b protected so as not to b

ad ersely af fected by rain, s ow, ice, water an or f re zin temp ratures, u les the

s stem an in talation eq ipment is desig ed for those con ition

– Sites f or large p wer s stems s al b protected again t ac es by u authorized p rson

commen urate with the location an in tal ation en ironment Fire de artment ac es

s al b provided

– It s al b located outside of p tential y hazardou atmospheres as defined by IEC 6 0

9-10, u les lsted an a proved for the sp cif i in tal ation

– It s al b sited so that the p wer s stem an eq ipment do not ad ersely af f ect bui din

exits

– It s al b located so that the p wer s stem(s) an comp nents of a f uel cel p wer

s stem an their resp ctive vent or ex au t termination are se arated fom do rs,

win ows, outdo r intakes, an other o enin s into a buidin to prevent introd ction of

ex au t gases into the bui din

– The ex au t outlet s) s al not present a hazard when directed onto walkway or other

p th of travel for p destrian

– It s al b located in a man er that al ows service, maintenan e, an emergen y ac es

– It s al b located away fom combu tible materials, hig -pied stoc , an other exp s res

to fire hazard Distan es an cle ran e s al b ac ordin to the man f acturer’s

in tal ation in tru tion

– It s al b located or protected to prevent ph sical damage f rom movin vehicles or

eq ipment

– Multiple p wer s stems s al b located or protected s c that a fire or faiure of one of

the s stems do s not present a saf ety hazard to adjacent p wer s stems

– Where demon trated by an en ine rin analy is that the pres riptive req irements in this

clau e are u neces ary to ac ieve an eq ivalent level of saf ety, a proved alternatives

s al b p rmit ed by the Authority Havin Juris iction

– Dis harged l q id s al b disp sed of ac ordin to AHJ