Bsi bs en 50122 1 2011 + a4 2017

The s ar t an f ish of ext intr od ced or alter ed by amen ment is in icated in the text by tags.. Tags in ic atin chan es to CENEL EC te t car r y the n mber of he CENEL EC amen ment..

Natio al f orew ord

This B tish Stan ar d is the UK implementatio of

EN 5 12 -1:2 1 +A4 :2 17, incor por atin c or r igen um November 2 12

It su er sedes BS EN 5 12 -1:2 1 +A3:2 16 which is with r awn

The s ar t an f ish of ext intr od ced or alter ed by amen ment is

in icated in the text by tags Tags in ic atin chan es to CENEL EC te t

car r y the n mber of he CENEL EC amen ment For example, te t alter ed

by CENEL EC amen ment A1 is in icated by 

The s ar t an f ish of e t intr od ced or alter ed by cor r igen um

is in icated in the text by tags Text alter ed by CENEL EC cor r igen um

November 2 12 is in icated in the te t by 

In 7.4 1 NOTE 1, r efer ence is made to the TN an TT sy stems of e r th

co nec tio f or low-voltage dis r i utio systems Table 2 sh ws o ly TT an

TN systems, alth u h other y stems ar e alowed by the NOTE 2 For

ap lc atio in the UK , it sh uld be n ted that IT sy st ems ar e n t pr ohibited

by this s an ar d

Attentio is dr awn to the f act that wor k is cur r ently in han to r eplac e

the United K in d m spec ial natio al co ditio set o t in Anne G ( 5.2.1)

Unti this natio al co ditio is r evised, an ap r op ate r isk as esment is

co sider ed es ential if p blc ar ea cle r ances of les than the minimum set

o t in Fig r e 4 ( clause 5.2.1) ar e to be used

The UK par ticipatio in it pr epar atio was entr used by Tech ical

C mmit e GEL /9, Raiway Electr otech ic al Applcatio s to Su c ommit e

GEL /9/3, Raiway Electr otech ical Applcatio s – Fix d Eq ipment

A ls of or ganiz tio s r epr esented o this su commite can be o tained

o r eq es to it sec r etar y

This p blcatio d es n t p r por t to inclu e al the neces ar y pr ovisio s of

a c ontr ac t User s ar e r esp nsible f or it cor r ect ap lc atio

© The B tish Stan ar ds Ins itutio 2 17

P blshed by BSI Stan ar ds L imited 2 17

A me dme t s/ or r ig nd is u d since publcat ion

31 July 2 1 Implementatio of CENE EC amen ment A 1:2 1

31 Nov ember 2 12 Implementatio of CENE EC cor igen um

Nov ember 2 12

31 Ma 2 13 A dditio al inf ormatio inclu ed in the natio al

f orew ord

31 Jan ary 2 16 Implementatio of CENE EC amen ment A 2:2 16

3 Nov ember 2 16 Implementatio of CENE EC amen ment A 3:2 16:

A nne Z u dated

2 February 2 17 Implementatio of CENE EC amen ment A 4:2 17

NOR ME EUROPÉENNE

June 2011

Euro e n Committ e 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 hnisc he Normu g

Manageme nt Centre : Ave nu Ma rnix 17, B - 10 0 Bru se ls

© 2 1 CENELEC - A ll rig ts of e ploitat io in a y form a d b a y me n re erv ed wo dwid for CENELEC memb rs

Electric al safety, eart hing and t he ret urn circuit -

Part 1: Prot ect iv e prov isions against elect ric shock

A pplc at io s ferov iaires -

Inst alat ions fixes -

Sécurit é élect riq e, mise à la t ere et

circ uit de retour -

Part ie 1: Mesures de prot ect ion c nt re les

c hocs élec t riques

Ort sfest e Anlagen -

Elek t risc e Sicherheit, Erdung und

R ück leit ung -

Tei 1: Schut zmaßnahmen gegen

elek t risc hen Sc lag

This Euro e n Stan ard was a pro e b CENELEC o 2 10-1 -16 CENELEC memb rs are b u d t o comply

with t he CEN/CENELEC Intern l Reg lat io s whic h s p late t he con itio s for givin t his Euro e n Stan ard

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

Up-to-d te lsts a d biblo ra hical refere ces conc ernin such n tio al st an ards ma b o tain d o

a plcatio t o the Ce tral Secretariat or to a y CENELEC memb r

This Euro e n Stan ard e ists in thre oficial versio s (En lsh, Fre c h, Germa ) A versio in a y ot her

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

to the Ce tral Secretariat h s th same stat us as th oficial v rsio s

CENELEC memb rs are the n tio al electrotechnical commit tees of Aust ria, Belgium, Bulg ria, Cro tia, Cy rus,

the Czech Rep blc, De mark, Est onia, Finla d, Fra c e, Germa y, Gre ce, Hu g ry, Ic la d, Irela d, Italy,

L tvia, Lithu nia, L ux mb urg, Malta, t he Netherla ds, Norwa , Pola d, Port ug l, R oma ia, Slo a ia, Slo e ia,

Sp in, Swe e , Swit z erla d a d the United Kin d m

Inc orp rat in c orig n um Nov emb r 2 12

January 2016Nov ember 2016February 2017

Foreword

This Euro e n Stan ard w as pre ared by SC 9X C, Elect ric s p ly an e rt hin s stems for publc t ran p r t

eq ipment an an i ary a p rat us (Fix ed in t alat ion ), of Tec nical Commit t ee CENELEC TC 9X , Elect rical

an elect ronic a plcat ion for raiw ay It w as s bmit t ed t o t he formal v ot e an w as a prov ed by CENELEC

as EN 5 12 -1 on 2 10-1 -16

This doc ment s p rsedes EN 5 12 -1:19 7

At t ent ion is draw n t o the p s ibi ty t hat some of t he element s of t his doc ment may b t he s bject of p tent

rig t s CEN an CENELEC s al not b held resp n ible for identifyin an or al s c p tent r ig t s

The folowin dat es w ere fix ed:

– 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

This Euro e n St an ard has b en pre ared u der a man at e giv en t o CENELEC by the Euro e n

Commis ion an t he Euro e n Fre Trade A ssociat ion an covers es ent ial req irement s of

EC Direct iv es 9 /48/EC (HSR ), 2 01/ 16/ EC (CONRAIL) an 2 0 /57/EC (R AIL) Se An e Z

_ _

This amen ment t o t he Euro e n Stan ard EN 5 12 -1:2 1 was pre ared by SC 9XC, Elect ric

s p ly an e rt hin s st ems for publc t ran p rt eq ipment an an i ar y a p rat us (Fix ed

in t alat ion ), of Tec nical Commit t ee CENELEC TC 9X , Elect rical an elect ronic a plcation for

raiw ay

The t ex t of t he draft was s bmit t ed t o t he Uniq e Acce t an e Proced re an was a prov ed by

CENELEC as Amen ment A1 to EN 5 12 -1:2 1 on 2 1 -0 -2

At t ent ion is dr awn to t he p s ibi ty t hat some of t he element s of t his doc ment may b the s bject of

p t ent rig t s CEN an CENELEC s al not b held resp n ible for ident ifyin an or al s c p tent

rig t s

The folowin dat es w ere fix ed:

– lat est date by whic the amen ment has to b implement ed

at nat ional level by publcat ion of an identical

nat ional st an ard or by en orsement

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

w it h t he amen ment hav e to b w ith raw n

This doc ment (EN 5 12 -1:2 1 / A2:2 16) has b en pre ared by CLC/SC 9X C "Elect ric s p ly an

e rt hin s stems for publc t ran p rt eq ipment an an i ary a p rat us (Fixed in t alation )", of

CLC/TC 9X, "Elect rical an elect ronic a plcation for raiw ay "

The folowin dat es are fix ed:

• lat est date by whic this doc ment has

t o b implement ed at national lev el by

publcation of an ident ical nat ional

st an ard or by en orsement

• lat est date by whic the national

st an ard conflct in w it h this

doc ment hav e to b with raw n

At t ent ion is drawn t o the p s ibi ty t hat some of t he element s of t his doc ment may b the s bject of

p t ent rig t s CENELEC [an /or CEN] s al not b held resp n ible for identifyin an or al s c

p t ent rig t s

This doc ment has b en pr ep red u der a man ate giv en t o CENELEC by the Euro e n Commis ion

an the Euro e n Fre Trade As ociat ion, an s p ort s es ent ial req irement s of EU Direct iv e(s)

F r t he relation hip with EU Direct ive(s) se informat iv e An e Z , in lu ed in EN 5 12 -1:2 1

Forew ord t o amendment A 2

EN 5 12 -1:2 1 / A3:2 16 (E)

This doc ment EN 5 12 -1:2 1 / A3:2 16) has b en pre ared by CLC/SC 9X C "Elect ric s p ly an

e rt hin s stems for publc t ran p rt eq ipment an an i ar y a p rat us (Fix ed in t alat ion )"

The folowin dat es are fix ed:

• lat est date by whic this doc ment has

t o b implement ed at nat ional lev el by

publcation of an ident ical national

st an ard or by en orsement

• lat est date by whic the national

doc ment hav e to b with rawn

At t ent ion is drawn to t he p s ibi ty t hat some of t he element s of t his doc ment may b the s bject of

p t ent rig t s CENELEC [an / or CEN] s al not b held resp n ible for ident ifyin an or al s c

p t ent rig t s

This doc ment has b en pre ared u der a man at e given to CENELEC by t he Euro e n

Commis ion an the Eur op an Fre Trade As ociat ion, an s p ort s es ential req irement s of EU

This doc ment EN 5 12 -1:2 1 / A4:2 17) has b en pre ared by CLC/SC 9X C "Elect ric s p ly an

e rt hin s stems for publc t ran p rt eq ipment an an i ar y a p rat us (Fix ed in t alat ion )"

The folowin dat es are fix ed:

• lat est date by whic this doc ment has

t o b implement ed at national lev el by

publcation of an ident ical nat ional

st an ard or by en orsement

• lat est date by whic the national

st an ard conflct in wit h this

doc ment hav e to b with raw n

At t ent ion is dr awn to t he p s ibi ty t hat some of t he element s of t his doc ment may b the s bject of

p t ent rig t s CENELEC [an / or CEN] s al not b held resp n ible for ident ifyin an or al s c

p t ent rig t s

This doc ment has b en pre ared u der a man at e given to CENELEC by t he Euro e n

Commis ion an the Eur op an Fre Trade As ociat ion, an s p ort s es ential req irement s of EU

Direct iv e(s)

For t he relation hip with EU Direct ive(s) se informat iv e Anne Z of EN 5 12 -1:2 1

Forew ord t o amendment A 4

3

Rep lac e th An e Z in EN 50122- 1:201 b th folowin n w a n x:

(informat ive)

R elat ionship betwe n t his European St andard and t he Essent ial

This Euro e n St an ar d has b en pre ar ed u der a man at e given t o CENELEC by the

Euro e n Commis ion an t he Eur op an Fr ee Trade As ociation an wit hin it s s o e t he

st an ard cov ers al relev ant es ential r eq irement s as giv en in A nnex l of the EC Dir ectiv e

2 0 / 57/ EC (also named as New Ap r oac Dir ective 2 0 /57/EC R ai Sy tems: Int ero era i ty)

On e t his st an ard is cit ed in t he Oficial Journal of t he Europ an Union u der t hat Dir ectiv e an

has b en implement ed as a national st an ar d in at le st one Memb r St ate, complan e wit h the

c lau es of t his st an ard given in Ta le Z 1 for “Energy ” confers, within the lmits of t he s o e of

t his st an ard, a pr es mpt ion of conformity with t he cor resp n in Es ent ial R eq irement s of t hat

Directive an as ociat ed EFTA reg lat ion

Table Z 1 - Corresp n e c betwe n t his Euro e nSta d rd,th T I “En rgy”

(R EGULATION (EU) No 13 1/ 2014 of 18 Nov mber 2 14)

provision again t

elect ric s ock

1 General Req irement s

WAR NING: Ot her r eq irement s an other EU Direct iv es may b a plca le to t he prod ct s

fal n wit hin the s o e of t his st an ard

Cont ent s

1? Sco e 7?

2? Norma v refere c s 7?

3? Terms a d d finit ion 8?

3.1? Elect r ical safety an hazard 8?

3.2? Eart hin an eq ip tential b n in 10? 3.3? R et urn circ it 1 ?

3.4? Elect r ic t ract ion s st em 13? 3.5? Cont act lne 14? 3.6? Corosion an corosion pr ot ect ion 16? 3.7? Curent colection 16? 3.8? R esid al c rent devices 16? 3.9? General t erms 17? 4? Cont act ln zon a d c rre t cole t or zon 17? 4.1 Ov erhe d cont act lne s stems 17 4.2 Con u t or rai s st ems 2

4.3 Troleybu s st ems 2

5? Prot ec v provision a ain t dire t cont act 2 ?

5.1 General 2

5.2 Prot ection by cle r an e 2

5.3 Prot ection by o st acles 2

5.4 Prot ective prov ision for workin u der lv e con it ion 3

5.5 Sp cific prot ect iv e prov ision again t elect ric s oc in con u t or rai s st ems 3

5.6 Sp cific prot ect iv e prov ision again t elect ric s oc in s stems in whic the w he ls of t he v ehicles are not u ed for ret urn circ it 4

6? Prot ec v provision a ain t in ire t cont act a d impermis ible rai p t en al 41?

6.1 Prot ective prov ision again t in irect contact 41

6.2 Prot ective prov ision for ex posed con u tive p rt s w ithin t he cont act lne zone or t he c rent colect or zone 4

6.3 Prot ective prov ision for wholy or p rtly con u tive st r uct ures 4

6.4 Limit at ion of rai p t entials 4

7? Prot ec v provisions for low volt ag non t ra t ion p wer s pple 4 ?

7.1 General 4

7.2 R elat ed prov ision 4

7.3 Prot ective prov ision for elect rical in t alat ion in t he ov erhe d cont act lne zone or t he c rent colect or zone 4

7.4 Prot ective prov ision for in t alation w hic are en an ered by the t raction p w er s p ly return circ it 4

8? Prot ec v provision wh re t rac s st ems, whic are u lze for c rryin t rac on ret urn c re t , or/an cont act ln s st ems pa s t hrou h hazardou zon s 5 ?

8.1 General 5

8.2 Eq ip t ent ial b n in 5

8.3 Paralel pip work 5

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8.6 Cont act lne of lo din sidin s 5

9? Limit s for t ouc volt ag a d prot ec on a ain t t he d n er of rai p t en al 5 ?

9.1 General 5

9.2 A.C t raction s st ems 5

9.3 D.C t ract ion s stems 5

10? Addit ion l prot ec v provision 61?

10.1 Tract ion s bst at ion an t r act ion swit chin stat ion 61

10.2 Ca les 61

10.3 R et urn circ it con ect ion an e rt hin con u t ors 61

10.4 R emov in of decommis ioned overhe d contact lnes 6

10.5 Me n of ac iev in safe isolation b tween sect ion 6

An e A (informat ive) Ty pic l o st acle 6 ?

An e B (normat ive) W arnin sig 6 ?

An e C (informat ive) Guidin v lue for rai p t ential gra ie t 6 ?

C.1 A.C t raction s st ems 6

C.2 D.C t ract ion s stems 6

An e D (informat ive) Efe tiv tou h volt ag a d b dy volta e wit h re pe t t o t he b d c r e t 6 ?

D.1 Precon ition for t he calc lat ion 6

D.2 Imp dan es 6

D.3 Bod c rent an relat ed b d voltage 7

An e E (normat iv e) Me s reme t method for efe t i e touc volt ag s 7 ?

An e F (normat ive) Th u e of volt ag - limit i g d vic s 7 ?

F.1 General 7

F.2 Typ s 7

F.3 Tec nical req irement s 7

An e G (normat iv e) Spe ial n t ion l con it ion 7

An e H (normat iv e) A-d via on 8

An e Z (informat iv e) Cov ra e of Es e tial R equireme ts of EC Dire tiv s 8 ?

Bibl ograph 81?

Fig re Fig re 1 — Ov erhe d contact lne zone an c rent colect or zone 19? Fig re 2 — Ov erhe d contact lne zone an c rent colect or zone for t roley bu s stems 21?

Fig re 3 — Minimum cle ran es t o ac es ible lve p r t s on t he out side of v ehicles as w el as t o lve p rt s of ov er he d contact lne s st ems fom st an in s races ac es ible t o p rson for low v olt ages 2 ?

Fig re 4 — Minimum cle ran es t o ac es ible lve p r t s on t he out side of v ehicles as w el as t o lve p rt s of ov er he d contact lne s st ems fom st an in s races ac es ible t o p rson for hig v olt ages 2 ?

Fig re 5 — St an in s rac es for p rson providin ac es t o lv e p rt s on t he outside of vehicles an to ov erhe d cont act lne s st ems 2 ?

8 21 2 2 2 2 8 8.4 In ulat in joint s 5

8.5 Surge arest er 5

8.6 Cont act lne of lo din sidin s 5

9? Limit s for t ouc volt ag a d prot ec on a ain t t he d n er of rai p t en al 5 ?

9.1 General 5

9.2 A.C t raction s st ems 5

9.3 D.C t ract ion s stems 5

10? Addit ion l prot ec v provision 61?

10.1 Tract ion s bst at ion an t r act ion swit chin stat ion 61

10.2 Ca les 61

10.3 R et urn circ it con ect ion an e rt hin con u t ors 61

10.4 R emov in of decommis ioned overhe d contact lnes 6

10.5 Me n of ac iev in safe isolation b tween sect ion 6

An e A (informat ive) Ty pic l o st acle 6 ?

An e B (normat ive) W arnin sig 6 ?

An e C (informat ive) Guidin v lue for rai p t ential gra ie t 6 ?

C.1 A.C t raction s st ems 6

C.2 D.C t ract ion s stems 6

An e D (informat ive) Efe tiv tou h volt ag a d b dy volta e wit h re pe t t o t he b d c r e t 6 ?

D.1 Precon ition for t he calc lat ion 6

D.2 Imp dan es 6

D.3 Bod c rent an relat ed b d voltage 7

An e E (normat iv e) Me s reme t method for efe t i e touc volt ag s 7 ?

An e F (normat ive) Th u e of volt ag - limit i g d vic s 7 ?

F.1 General 7

F.2 Typ s 7

F.3 Tec nical req irement s 7

An e G (normat iv e) Spe ial n t ion l con it ion 7

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Te t deleted

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Fig re 6 — St an in s rac es for p rson providin ac es t o lv e p rt s on t he outside of vehicles

an to con u t or rai s stems 2 ?

Fig re 7 — Ex amples of o st acles for st an in s races in publc are s for prot ect ion again t direct cont act w it h adjacent lve p rt s on t he out side of vehicles or adjacent lve p rt s of a cont act lne s stem 2 ?

Fig re 8 — Ex amples of o st acles for st an in s races in rest rict ed are s for prot ect ion again t direct contact wit h adjacent lv e p rt s on t he out side of v ehicles or adjacent lve p rt s of a cont act lne s st em for low voltages 3 ?

Fig re 9 — Ex amples of o st acles for st an in s races in rest rict ed are s for prot ect ion again t direct contact wit h adjacent lv e p rt s on t he out side of v ehicles or adjacent lve p rt s of a cont act lne s st em for hig v olt ages 31?

Fig re 10 — Ex amples of o st acles for st an in s rac es in rest ricted areas for prot ect ion again t direct contact when a ov e lve p rt s on t he out side of vehicles or lv e p rt s of a cont act lne s st em for low voltage 3 ?

Fig re 1 — Ex amples of o st acles for st an in s rac es in rest ricted areas for prot ect ion again t direct contact when a ov e lve p rt s on t he out side of vehicles or lv e p rt s of an ov erhe d cont act lne s st em for hig v olt age 3 ?

Fig re 12 — Ex ample of an in ulat ed o st acle b ne th a st ru t ure 3 ?

Fig re 13 — Ex ample of an in ulat ed o st acle b ne th a st ru t ure for an u e rt hed t roley bu s stem 3 ?

Fig re 14 — Ex ample of an in ulat ed o st acle b ne th a st ru t ure for a t roley bu s stem in w hic t he negat iv e cont act w ire is e rt hed or con ect ed t o t he ret urn circ it of a t r amway s st em 3 ?

Fig re 15 — Publc level cr os in , priv at e lev el cros in 3 ?

Fig re 16 — Trac kside st ru t ures 3 ?

Fig re 17 — Sig al-p st w it h t ele hone 3 ?

Fig re 18 — A ut horized t r ac kside walkin r out e 3 ?

Fig re 19 — R aiw ay cont r oled cros in (de ot s, go d yard, st at ion cros in ) 4 ?

Fig re 2 — T s st em for a.c raiway 4 ?

Fig re 21 — TN s st em for a.c raiway 5 ?

Fig re 2 — T s st em for d.c raiway 51?

Fig re 2 — TN s st em for d.c raiway 5 ?

Fig re 2 — Disp sition of rai-t o-ai cros b n s an t rack -t o-t rac k cros b n s (double-ai i u t rat ion) an con ection of t he contact lne in case of t he lo din sidin hav in a cont act lne 5 ?

Fig re 2 — L cat ion of a s rge arest er out side t he ov erhe d cont act lne zone of a lo din sidin if t here is a p s ibi ty of flas ov ers of t he in ulat in pieces t hrou h lg t nin st rik es 5 ?

Fig re 2 — Desig of ret urn circ it , w it h regard t o p r mis ible efect iv e t ou h voltage by c ec in t he rai p t ential or t he efect ive t ou h voltage 5 ?

Fig re A.1 — Ex amples of o st acles alon the sides of st an in s races in publc are s for prot ect ion again t direct cont act when a ov e lv e p rt s on the out side of vehicles or lv e p rt s of an ov erhe d contact lne s st em for low v olt ages (se 5.3.2.2) 6 ?

Fig re A.2 — Ex amples of o st acles alon the sides of st an in s races in publc are s for prot ect ion again t direct cont act when a ov e lv e p rt s on the out side of vehicles or lv e p rt s of an ov erhe d contact lne s st em for hig voltages (se 5.3.2.2) 6 ?

Fig re B.1 — Warnin sig 6 ?

Fig re C.1 — Guidan e values for t he rai p t ent ial gradient me s red at he mast in a rig t an le t o t he t rac in an a.c t ract ion s st em 6 ?

Fig re D.1 — Eq ivalent cir cuit for t he calc lat ion of t he p rmis ible tou h v olt age 71?

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Ta le D.2 — Ex ample of t he max imum p rmis ible prosp ct ive t ou h v olt age for a.c raiw ay for

s ort -t erm con it ion an R

1 Scope

This Euro e n Stan ard sp cifies req irement s for the protect iv e prov ision relat in t o elect rical safety in

fix ed in t alat ion as ociated wit h a.c an / or d.c t r act ion s st ems an t o an in t alation that can b

en an er ed by the t raction p wer s p ly s stem

It also a ples t o al asp ct s of fix ed in t alation that are neces ar y t o en ure elect rical safety d rin

maint enan e w ork within elect ric t ract ion s st ems

This Euro e n Stan ard a ples to al new lnes an t o al major rev ision t o ex ist in lnes for t he folowin

elect ric t raction s st ems:

5) mag et icaly lev it at ed s st ems, whic u e a contact lne s st em,

c) mat erial t ran p rt at ion s stems

This Euro e n St an ard do s not a ply t o:

d) mine t ract ion s stems in u dergrou d mines;

e) cranes, t ran p rt able plat forms an simiar t ran p rt ation eq ipment on rais, t emp rary st ru t ures (e.g

ex hibit ion st ru t ures) in so far as t hese are not s p led directly or v ia t ran formers fom t he cont act lne

s stem an are not en an ered by the t raction p w er s p ly s stem;

f) s sp n ed ca le cars;

g) fu ic lar raiw ay

This Euro e n St an ard do s not sp cify workin rules for maint enan e

2 Normative references

The folow in referen ed doc ment s are in isp n a le for t he a plcation of t his doc men F r dat ed

referen es, only t he edit ion cit ed a ples F r u dat ed referen es, t he lat est edit ion of t he referen ed

doc ment in lu in an amen ment s) a ples

EN 5 1 9:2 0 , Raiwa a plcatio s – Fix d ins talatio s – Electric tractio o verh ad contact ln s

EN 5 12 -2, Raiwa a plcatio s – Fix d ins talatio s – Part 2: Pro tectiv pro is io s a ains t th efects o f

s tra cure ts caus ed b d.c tractio n s ys tems

EN 5 12 -1:2 01 + A1:2 0 + A 2:2 0 , Raiwa a plcatio s – Ins u latio n coo rdin tio n – Part 1: B as ic

req uireme ts – C le ra ces a d cre p g dis ta ces for al electrical a d electro ic eq uipme t

EN 5 15 :2 0 , Raiwa a plcatio s – Rol n s to ck – Prote tiv pro is io s relatin to electric al h z rds

EN 5 16 , R aiwa a plcatio s – Su pply v lta es oftra tio systems

EN 6 5 9:19 1 + A 1:2 0 , D egre s of protectio pro ided b e clos ure (IP code)

(IE 6052 9 : 19 9 + A1:1999 )

EN 6 8 8-1:2 0 + A1 :2 0 , Electrical acces s orie – Circuit- bre k rs for o vercurre t pro tectio n for

ho us eho ld a d s imiar ins talatio s – Part 1: Circu it-bre k rs fo r a.c o eratio (IEC 6 8 9 8-1:2002, mod.)

EN 61 4 :2 0 + A1:2 0 , Protectio n a ains t electric s ho ck – C ommo as pects for ins talatio a d

equ ipme t (IEC 61 4 0: 2 001 + A1:2004, mod.)

EN5 3 5,Raiwa a plcatio s –Fix dins talatio s –Electrictractio –Ins u latin s ynth tic

HD 6 3 4-4-41:2 0 , L w- volta e electrical ins talatio s – Part 4- 4 1: Pro tectio for s afety – Pro tectio

a ains t electric s hock (IEC 6 364-4- 4 1:2005, mod.)

HD 6 7 S1:19 9, Power ins talatio ns e ceedin 1 kVa.c

IEC 6 0 0-101, Intern tio al Electrotechnical Vocabu lary – Ch pter 101: Math matics

IEC 6 0 0-1 1, Intern tio al Electrotechnical Vocabu lary – Ch pter 1 1: Ph s ics a d chemis try

IEC 6 0 0-191, Intern tio al Electrotechnical Vo c abulary – Ch pter 191: De e da i ty a d q ualty o f

s ervice

IEC 6 0 0-19 , Intern tio nal Electrotechnical Vocabu lary – Ch pter 195: Earthin a d protectio ag ains t

electric s hock

IEC 6 0 0-4 2, Intern tio al Electrotechnical Vocabu lary – Ch pter 4 2: Electric al acces s ories

IEC 6 0 0-81 , Intern tio al Electrotechnical Vocabu lary – Ch pter 8 11: Electric tractio n

IEC 6 0 0-8 1, Intern tio nal Electrotechnical Vo cabulary – Ch pter 82 1: Sig al n a d security a p ratus

for raiwa s

IEC 6 0 0-8 6, Intern tio al Electrotechnical Vocabu lary – Ch pter 8 26: Electric al ins talatio s

IEC/TS 6 4 9-1:2 0 , Efects o fcurre t o hu ma b in s a d lv s tock – Part 1: Ge eral as pects

ISO 3 6 -1:2 0 , Gra hical s ymb ls – Safety colours a d s afety s ig s – Part 1: D es ig princ iple for s afety

s ig s in wo rk laces a d pu blc are s

ISO 7 10:2 0 + A 1:2 0 , Gra hical s ymb ls – S afety colours a d s afety s ig ns – Safety s ig ns us ed in

work laces a d publc are s

3 Terms and definit ions

For t he purp ses of t his doc men t he folow in terms an definit ion a ply

3.1 Ele trical safety a d hazards

3.1.1

ele tric l s fety

fe dom fom u ac e t able ris of harm cau ed by elect rical s st ems

v olt age b tween con u tive p rt s when tou hed simult ane u ly by a p rson or an animal

NOT 1 Th v alu of th efec tiv e t ou h v olt ag c n b a pre ia ly influ n e b t he imp d n e of t he p rs n or t he a imal in ele t ric

c nt act wit h t he e c n u t iv e p rts

[IEC 6 0 0-19 -0 -1 ]

NOT 2 Th c n uc t iv e p th thro g th b d is c nv entio aly fom h n t o b th fe t (h riz ont al dist an e of 1 m) or fom h n to

h n

3.1.4

prospe tiv t ou h volt ag (U

tp)

v olt age b tween simult ane u ly ac es ible con u t ive p rt s when those con u t iv e p rt s are not b in

t ou hed by a p rson or an animal

[ IEC 6 0 0-19 -0 -0 ]

3.1.5

b d volta e (U

b)

prod ct of t he c rent hrou h t he b d an t he b d imp dan e

3.1.6

sta din s rfa e

an p int on a s race w here p rson may stan or w alk a out w ithout gre t efort

3.1.7

prot ectiv boardin

non-con u t in b rier to prot ect p rson fom comin into direct cont act w ith t he lv e con u t or rai

3.1.8

(ele tric l y ) prot ectiv o st acle

p rt prev ent in u int ent ional direct contac but not prev ent in direct cont act by delb rate action

[IEC 6 0 0-19 -0 -16]

3.1.9

(ele tric l y ) prot ectiv bar ier

p rt prov idin pr ot ect ion again t direct cont act fom an u ual direction of ac es

[IEC 6 0 0-19 -0 -15]

3.1.10

a ti-re pa sin g ard

eq ipment provided to det er ent r y to a rest rict ed are , st ru t ure or buidin by an u aut hori ed p rson

ex pos d con u t i e part

con u t iv e p rt of elect rical eq ipmen whic can b t ou hed an w hic is not normaly lv e, but w hic can

b come lve when b sic in ulation fais

NOT A c n u t iv e p rt of ele t ric l e uipme t whic c n o ly e ome lve t hro g c nt ac t wit ha e p s d c n u t iv e p rt whic h s

b c me lv e is n t c n id re to b a e p s d c n uc t iv e p rt itself

[IEC 6 0 0-4 2-01-21]

3.1.13

l v part

con u t or or con u t iv e p rt int en ed to b energised in normal u e By con ention t his do s not in lu e t he

ru nin rais an p rt s con ect ed t o them

3.1.14

dire t conta t

elect ric cont act of p rson or animals with lv e p rt s

[IEC 6 0 0-8 6-12-0 ]

ne tral con u tor

con u t or elect ricaly con ect ed t o the neut ral p int an ca a le of cont ributin to t he dist ribut ion of elect ric

energ

[IEC 6 0 0-8 6-14-0 ]

3.1.17

prote tiv con u tor (PE)

con u t or, req ired by some me s res for prot ect ion again t elect r ic s oc , for elect ricaly con ect in an of

sold- wal d sig

an kin of con t ru t ion made of con ret e, ste l or other mat erial w it hout an holes or ga s

3.1.2

volta e imit i g d vic (V LD)

prot ect iv e dev ice whose fu ct ion is t o prev ent ex ist en e of an imp rmis ible hig t ou h v olt age

3.2 Earthing a d e uipote tial bonding

con t ru t ion made of met al c p rt s or con t ru t ion in lu in intercon ect ed met al c st ru t ural p rt s, whic h

can b u ed as an e rt h elect rode

NOT Ex mple are reinforc d raiwa stru t ure s c a brid e , v ia u ts,tu n ls, ma t fo n atio s a d reinforc d t rac k b d

main e uip te t i l bu bar (MEB)

bu b r w here the eq ip t ent ial con u t ors t erminat e

3.2.8

elect rical con ect ion inten ed t o con ect in p ralel t he con u t ors of t he ret urn circ it

3.2.9

rai-t o- rai cros b n

elect rical b n t hat int ercon ect s t he ru nin rais of t he same t rac k

3.2.10

tra k -to-ra k cros bon

elect rical b n t hat int ercon ect s t rac s

ope con e tion

con ect ion of con u t iv e p rt s t o t he ret urn circ it by a v oltage-lmit in dev ice w hic makes a con u t iv e

con ect ion either t emp rariy or p rmanently if t he lmit ed v alue of t he v olt age is ex ce ded

3.2.13

common bui din

buidin or st ru t ure whic cont ain or s p ort s an a.c raiway an a d.c raiway; furt hermore wher e some

con u t iv e p rt s of t he st r uct ure are within t he contact lne zone or t he c rent colect or zone of t he a.c

raiw ay an some con u tiv e p rt s of t he st ru t ure ar e wit hin the cont act lne zone or t he c rent colect or

zone of t he d.c raiw ay

NOT Even th u inte d d c n e tio of c n u tiv e p rt s of difere t st ru t ure c n form a c mmo b idin , e.g v ia

reinforc me t, wirin , pip s,etc

– return c n uc tor rais,

– ret urn c n uc t ors,

– return c ble

3.3.2

tra k return sy stem

s stem in w hic the ru nin rais of t he t rac form a p rt of t he return circ it for t he t ract ion c rent

[IEC 6 0 0-81 -3 -0 ]

3.3.3

return con u tor

con u t or p raleln the t r ac ret urn s st em an con ect ed t o the ru nin rais at p r i dic int ervals

3.3.4

return con u tor rai – return c re t rai

con u t or rai u ed in t ead of t he ru nin rai for t he ret urn c rent s

[IEC 6 0 0-81 -3 -10]

3.3.5

return c ble

con u t or con ectin t he run in rais or ot her p rt s of t he ret urn circ it t o t he s bst at ion

NOT Simiar to IEC 6 0 0-81 -3 -0

3.3.6

tra tion return c rre t

s m of t he c rent s ret urnin t o the s p ly source, t he s bst at ion or regenerative brakin vehicles

3.3.7

rai p t ent i l (U

RE)

in ula n rai joint

mec anical rai joint w hic lon it udinaly se arates t he rai elect ricaly

3.3.12

tra k circ it

elect rical circ it of whic t he rais of a t rac k sect ion form a p rt , wit h u ualy a source of c rent con ect ed at

one en an a det ect ion device at t he ot her en for det ect in whether t his t rac k sect ion is cle r or oc upied

3.4 Ele tric trac tion system

3.4.1

ele tric traction s st em

raiw ay elect rical dist ribution netw ork u ed t o provide energ for rol n st ock

NOT Th s stem ma c mpris :

– c nta t ln sy st ems;

– ret urn circ it of elec t ric t ra t io s st ems;

– ru nin rais of n n ele t ric t ra tio sy stems, whic are in t he v icinit y of, a d c n u tiv ely c n e ted to th ru nin rais of a

ele t ric trac t io sy st em;

– ele t ric l in t alatio s, whic are s p le fom c nt ac t ln s eith r dire t ly or v ia a t ra sformer;

– ele t ric l in t alatio s in s b tat io s, whic are ut ilz d s lely for dist rib t io of p wer dire t ly t o t he c nt ac t ln ;

– ele t ric l in talatio s of swit chin stat io s

3.4.2

(t ra t ion) s bst at ion

in t alat ion to s p ly a cont act lne s stem an at w hic t he voltage of a p mary s p ly s st em, an in

cert ain cases the feq en y , is t ran formed t o t he v olt age an the feq en y of t he cont act lne

3.4.3

(t ra tion) swit ching st ation

in t alat ion fom whic elect rical energ can b distribut ed t o diferent fe din sect ion or fom whic

diferent fe din sect ion can b swit ched on an of or can b intercon ected

non inten ed con it ion cau ed by s ort -circ it The time d rat ion is terminat ed by the corect fu ct ion of t he

prot ect ion dev ices an circ it bre kers

NOT For t he relev ant fa lt d rat io t he c re t o erat io of prote t io d v ic s a d circ it bre k ers is t ak n int o ac co n

3.4.6

s ort - circ it

ac idental or int ent ional con u t iv e p t h b tw een tw o or more con u t ive p rt s forcin t he elect ric p t ent ial

diferen es b tween these con u t iv e p rt s to b eq al to or close t o zero

zon of mut ual int era t ion

zone for w hic a mut ual intereren e b tw een a.c raiw ay an d.c raiw ay s al b con idered

3.4.10

ex pe te prospe t i e s ort -circ it c rrent

s ort -circ it c rent in d.c tract ion s stems t hat it is ex pect ed t o b re c ed if t he fault is not swit ched of

3.5 Contact l ne

3.5.1

cont act ln system

s p ort network for s p lyin elect rical energ fom s bst ation t o elect ricaly p wered t ract ion u it s, whic

cov ers ov erhe d contact lne s stems an con u t or rai s st ems; t he elect rical lmit s of t he s st em are the

fe din p int an t he contact p int t o t he c rent colect or

NOT Th me h nic l sy st em ma c mpris :

? alo g-t ra k fe d rs, reinforcin fe d rs, a d oth r ln s lk e e rt h wire a d ret urn c n u tors a far a t he are s p ort ed fom

c nt act ln sy st em struc t ure ,

? a y ot her e uipme t n c s ary for o eratin th c ntac t ln ,

? c n u t ors c n ec te p rma e tly t o t he c nt ac t ln for s p ly f ot her elec t ric l e uipme t s c a lg ts,sig al o eratio ,

?? p int c nt rol a d p int h at in

[EN 5 1 9: 2 0 , 3.1.1]

3.5.2

conta t ln

con u t or s stem for s p lyin t raction u it s wit h electrical energ v ia c rent -colect ion eq ipment

NOT This in lu e al c re t -c le tin c n u tors a d c n uc tin rais or b rs, in lu in t he folowin :

? reinforcin fe d rs;

? cro s-trac k fe d rs;

? dis o n ctors;

? s c t io in ulat ors;

? ov erv olt ag prote tio d v ic s;

? s p orts t hat are n t in ulat ed fom t he c n u t ors;

cont act lne placed a ove (or b side) t he up er lmit of t he v ehicle gau e an s p lyin v ehicles w ith elect ric

energ t hr ou h ro fmou t ed c r ent colect ion eq ipment

[IEC 6 0 0-81 -3 -0 ]

3.5.5

out of ru nin ov rh a cont act ln

p rt of ov erhe d cont act lne, not int en ed t o b direct ly u ed for c rent colection, e.g in order t o re c a

t erminat ion p int on a mast or a st ru t ure

3.5.6

con u t or rai s stem

cont act lne s st em u in a con u t or rai for c rent colect ion

rigid overhe d cont act lne, of simple or comp sit e sect ion, mou t ed a ov e or b side t he up er lmit of t he

v ehicle gau e, s p lyin t r act ion u it s wit h elect rical energ via ro fmou t ed c r rent colection eq ipment

[EN 5 1 9:2 0 , 3.1.6]

3.5.9

ov rh a cont act ln zon (OCLZ)

zone whose lmit s are in general not ex ce ded by a br oken ov erhe d cont act lne

3.5.10

c re t cole tor zon (CCZ)

zone w hose lmit s are in gener al not ex ce ded by an energised colect or no lon er in cont act w it h t he

cont act lne or broken colect or an it s fagment s

displacement of t he contact wire aw ay fom t he t rac cent re lne at s c es ive s p ort s, t o avoid localsed

w ear of t he p nt ogra h w earin st r ips

[IEC 6 0 0-81 -3 -21]

3.5.13

fe d r

elect rical con u t or lke a ca le or ov er he d lne b tw een the contact lne an a s bst at ion or a swit chin

st at ion whic is fed by a cir cuit bre ker

3.5.14

reinforcin fe der

ov erhe d con u t or mou t ed adjacent t o the overhe d cont act lne, an direct ly con ect ed t o it at feq ent

int er v als, in order t o in re se t he efect iv e cros sect ional are of t he overhe d cont act lne

[EN 5 1 9:2 0 , 3.2.2]

3.5.15

s ction in ulat or

sect ionin p int formed by in ulators in erted in a cont in ou ru of a cont act lne, with s id or simiar

devices t o maintain contin ou elect rical cont act w ith the colect or

3.5.16

double in ula on

in ulat ion comprisin b th b sic in ulat ion an s p lement ar y in ulation

[IEC 6 0 0-19 -0 -0 ]

3.6 Cor osion a d corrosion protec tion

p rt of t he c rent cau ed by a d.c.-t ract ion s st em whic folows p t hs ot her than t he return circ it

3.6.4

c t hodic prote t ion

elect roc emical immu ity prod ced by an a pr opriat e cat hodic p larizat ion

a p r at us for colect in c r rent fom one or more cont act w ires, formed of a hin ed dev ice desig ed to alow

v ert ical mov ement of t he p nt ogra h he d

a p r at us for colect in c r rent fom a cont act wire by me n of a gro v ed whe l or cont act slp er mou t ed

on a p le w hic is mov able in an direct ion

[IEC 6 0 0-81 -3 -0 ]

3.8 R esidual curent dev ic es

3.8.1

re id al c re t d vic (R CD)

mec anical swit chin dev ice desig ed t o make, cary an bre k c rent s u der normal serv ice con ition

an to cau e the o enin of t he cont act s when the resid al c rent a ain a giv en v alue u der sp cified

con ition

NOT A re id al c re t d v ic c n b a c mbin tio of v ario s s p rat e eleme ts d sig e to d te t a d ev alu t e t he re id al

c re t a d to mak e a d bre k ure t

[IEC 6 0 0-4 2-0 -0 ]

3.8.2

re id al c re t o erat ed circ it - bre k r without inte ral ov rc rrent prot ection (R CCB)

resid al c rent o erat ed swit chin device not desig ed t o p rorm t he fu ct ion of protect ion again t

ov er lo d an /or s ort -circ it s

[IEC 6 0 0-4 2-0 -0 ]

3.8.3

re id al c re t o erat ed circ it - bre k r wit h int egral ov rc r e t prot ec on (R CBO)

resid al c r ent o erated sw it chin dev ice desig ed to p rorm t he fu ct ion of prot ect ion again t overlo d

an / or s ort -circ it s

[IEC 6 0 0-4 2-0 -0 ]

3.9 Ge eral terms

3.9.1

(ele t ric ly ) in tructe person

p rson adeq at ely ad ised or s p rvised by elect ricaly s i ed p rson t o ena le him or her t o p rceiv e ris s

an to av oid hazard whic elect ricity can cre te

[IEC 6 0 0-19 -0 -0 ]

3.9.2

a thorize tra k sid walk in rout e

safe p t h alon side t he t rac k for u e only by authoriz ed p rson

3.9.3

monitoring

act ivity, p rormed eit her man aly or automat icaly, inten ed t o o ser v e the st at e of an item

NOT A ut omatic s p rv isio ma b p rorme int ern ly r e t ern ly to t he it em

re tricte are

are for whic ac es is only p rmit t ed for authorized p rson

4 Cont act l ne zone and cur ent col ect or zone

4.1 Overhea contac t l ne systems

These zones are defined for prot ect iv e provision in ac ordan e w it h 6.3 an are the zones w hose lmit s are

in general not ex ce ded by a broken ov erhe d cont act lne or an energised dew ired or broken c rent

colector an it s fagment s

St ru t ures an eq ipment may ac ident aly come in cont act wit h a lve broken ov erhe d contact lne or lv e

p rt s of a broken or dew ir ed c rent colect or an there y b come lve Fig re 1 defines t he zone in ide

w hic s c cont act is con idered to b pro a le

NOT 1 A c re t c lec tor whic h s b c ome dis o n ct ed fom t he ov erh a c nt ac t ln d e t o a mis a ma n v ert hele s b

alv e if a t rain h s multiple c re t c le t ors whic are ele tric ly o n ct ed or if th t rain is bra in u in a re e erativ e bra e

The p ramet ers X, Y, Z in Fig re 1 s al b defined by nat ional reg lat ion

NOT 2 A g idin v alu for t he p rameter Xis giv en a 4 m, Yis giv en a 2 m a d Z is giv en a 2 m

NOT 3 Th st ag er h s b e t ak en int o c on id ratio wit hin t he dime sio of X

If t he c rent colector is a p ntogra h t he w idt h of t he c rent colect or zone Yis the res lt of:

– t he half widt h of t he p nt ogra h L

P/2,

– t he lat eral mov ement of t he p ntogra h S

1,

– t he elect rical cle ran e S

el

in ac ordan e with EN 5 1 9, an

– a safety dist an e S

2for t he broken or dew ired p ntogra h

Y= L

P

/2 + S

1+ S

el+ S

2

The heig t of t he c rent colector zone Z de en s on:

– t he max imum heig t of t he fuly uplft ed c rent colector H

Z = H

ma

+ S

el+ S

3

- HP

The p int HP is t he p sit ion of t he hig est con u t or of t he ov erhe d contact lne u der al o erational

con ition con idered in t he cent re of t he t rac The lmit s of t he ov erhe d contact lne zone b low TOR are

ex t en ed v erticaly downward u t il t he e rt h s race is re c ed

These lmit s ne d not b ext en ed b low t he up er s r face of t he dec when t he r aiw ay ru s ov er a brid e

In t he case of out of ru nin ov erhe d contact lnes t he overhe d cont act lne zone s al b ex t en ed

ac ordin ly

When it can b proved, that it is u lkely t hat an ov erhe d con u t or rai wil bre k an en an er t he

neig b urin are , an overhe d con u t or rai z one in t his cont ex t is not neces ar y, but a c rent colect or

zone is neces ar y

The c rent colect or zone for t roley s al b given in nat ional reg lat ion

X ma imum u idirec tio al (h lf h riz ntal OCLZ, t op of rai lev el

Y ma imum u idirec t io al (h lf h riz nt al C Z

ma imum h ig t of t he fuly plft ed c re t c le tor

Fig re 1 — Ov rh a cont act ln zone a d c rre t col e tor zon

4.2 Conductor rai systems

In t he case of a con u t or r ai close to t he ru nin rais, a contact lne zone is not req ired

NOT Th ris of a brok en c n uc t or rai c n b n glec t ed

For provision again t direct cont act se 5.5 The lmit s of t he c rent colector z one s al b st ipulat ed

ac ordin t o e c sp cific case by t he infast ru t ure manager

4.3 T rol e bus syst ems

This z one is defined for prot ect iv e provision in ac cordan e with 5.6.3 an is t he z one whose lmit s are in

gener al not ex ce ded by one or b th broken ov erhe d contact w ire or an energised dew ired or broken t roley

an it s fagment s

St ru t ures an eq ipment may ac ident aly come in cont act wit h a lve broken ov erhe d contact lne or lv e

p rt s of a br oken or dew ir ed t roley an there y b come lve Fig re 2 defines t he zone in ide w hic s c

cont act is con ider ed to b pro a le

The p ramet ers X, Y, Z in Fig re 2 s al b defined by nat ional reg lat ion

NOT A g idin v alu for t he p rameter Xis giv en a 4 m, Yis giv en a 0,6 m a d Z is giv en a 1 m

In t he case of t roleybu es, t he t roley an t he c rent colect or he d are g ided by t he cont act w ire: therefore

The widt h of t he c rent c olect or zone Yis t he res lt of:

– t he elect rical cle ran e S

el

in ac ordan e with EN 5 1 9, an

– a safety dist an e S

2for t he broken or dew ired t roley

Y= S

el

+ S

2

The heig t of t he c rent colector zone Z de en s on:

– t he max imum heig t of t he fuly uplft ed t r oley H

Z = H

ma

+ S

el+ S

3

- HP

The p int HP is t he p sit ion of t he hig est con u t or of t he ov erhe d contact lne u der al o erational

con ition The lmit s of t he overhe d cont act lne zone ne d not b ex ten ed b yon t he up er s race of

t he dec when t he t roleybu -lne ru s ov er a brid e

HPCCZ

X ma imum u idirec tio al (h lf h riz ont al OCLZ, t op of ro d s ra e

Y ma imum u idirec tio al (h lf h riz nt al C Z

5 Prot ect ive provisions against direct cont act

Accordin t o HD 6 3 4-4-41 no protect ion again t direct cont act is req ir ed for circ it s w it h nominal voltages

up to an in lu in AC 2 V or DC 6 V This s al not a ply, how ever, if t he circ it con erned is con ect ed

t o t he t ract ion return circ it

In overhe d contact lne s stems one of t he folow in prot ective prov ision s al b uti zed for prot ect ion

again t direct contac

– prot ect ion by cle ran e;

– prot ect ion by o st acles

All in ulators w hic ar e direct ly con ected t o a lve p rt s al b regarded as a lv e p rt when con iderin

cle ran e dimen ion in this Euro e n St an ard

5.2 Prote t ion by cle ranc e

5.2.1 Sta ding s rfa e

For st an in s races ac es ible to p rson , t he cle r an e for t ou hin in a st raig t lne s ow n in Fig r e 3

an Fig re 4 s al b pr ovided again t direct contact w it h lv e p rt s of an ov er he d cont act lne s st em as

w el as lv e p rt s on the outside of a v ehicle (e.g c rent colect ors, ro f con u t ors, resist ors) This do s not

a ply t o con u t or rai s stems ne r t he ru nin rais (refer t o 5.5)

The cle ran es giv en in Fig re 3 an Fig re 4 are minimum v alues whic s al b maint ained at al

t emp rat ures an in the ful ran e of elect rical an mec anical lo d of t he con u t ors Due t o national or

regional ex istin prac tices, gre ter cle ran es or smaler mes siz es may b pres rib d by t he relev ant

infast ru t ure manager

This prot ect ion is not man at ory if, alt hou h cont act w it h lv e p rt s is p s ible, ot her prov ision hav e b en

t aken t o en ure isolation fom t he s p ly

NOT 1 To c in in a straig t ln imple that lve p rt s are ac ce sible b a p rs n fom a st an in s ra e with ut u e of o jec ts

NOT 2 Fig re 3 a d Fig re 4 a s me t hat t he st an in s ra e d e n t aford prot ec t io a ain t c nta t wit h lv e p rts sit uate

b low or to th sid t here f De e din o its c n tru tio th s ra e ma in prac tic me t h re uireme t re p ctin prov isio of

o st acle In t his c s th lower cle ra c s a plc ble t o o st acle ma b a ple

NOT 3 Th s c le ra c s h v e b e d termin d o t he b sis of th arms re c a d fin d in H 6 3 4-4-41 to whic a margin of

s fety wa a d d Th margin of s fety h s b e d termin d d p n in o t he v olt ag of t he c nta t ln sy stem, o e p rie c a d

o wh t her th sta din s ra e is in a re t rict ed are or in a p blc are

!

"

Ex ce t ion are the p rt s of s nthetic ro es whic are

furt her away fom lve p rts t han t he cre p ge len t h (ac ordin t o EN 5 3 5) w it h a minimum of 1 m

Dimen ion in met res

R2,6

Fig re 3 — Minimum cle ra c s to a c s ible lv parts on the outsid of v hicle

a w el a to l v part s of ov rh a conta t lne sy stems from sta din s rfa e a c s ible

t o person for low volt ag s

Dimen ion in met res

3,0

0,5

R,7

Fig re 4 — Minimum cle ra c s to a c s ible lv parts on the outsid of v hicle

a w el a to l v part s of ov rh a conta t lne sy stems from sta din s rfa e a c s ible

t o person for hig volta e

5.2.2 Ex cept ion for work in persons

The cle ran es t o b o serv ed for p rson workin ne r t o energised cont act lne s st ems s al b defined

in the o erat ional sp cification If o erat ional sp cificat ion do not ex is cle ran es s own in Fig re 3 an

Fig re 4 or the cle ran es t o o st acles ac ordin to 5.3 s al b u ed

St an in s races or plat forms ut ilzed solely for t he ex ec t ion of work at or in t he v icinity of t he cont act lne

s stem are not in lu ed

NOT Ex mple are st at io platform ro fs, work in platforms a d workin pla k s at sig al brid e , work in plat forms at sig als,

maint en n e-la d rs, work a e of hy dra lc work in plat forms,work in platforms of t ower c rs

5.2.3 W arnin sig s

Warnin sig s s al b u ed in are s w here t here is a seriou ris of p rson comin w it hin the lmit s of lve

p rt s of a cont act lne s st em giv en in 5.2.1 Su h war nin sig s s al b placed in a prominent p sition an

b re diy v isible adjacent t o t he p int of ac es The sig s al b in ac or dan e w it h ISO 3 6 (se

Anne B) If req ired an a pro riat e s p lement ary sig may b u ed

5.2.4 Minimum h ig t of ov rh a cont act l n s ab v roa s

Where a ro d carr yin nor mal v ehic lar t rafic cros es or coin ides w it h a raiw ay, t ramway or t roleybu

elect rified by me n of an ov erhe d cont act lne an no r oad t rafic rest ric t ion are sp cified, u les

ot her w ise fix ed by nat ional reg lation, a minimum v ert ical cle ran e as st at ed b low s al b provided

b twe n the ro d s race an t he lowest p int of t he ov erhe d cont act lne an as ociat ed fe ders

The minimum v ert ical cle r an e b tween the ro d s race an t he ov erhe d contact lne s al b :

– for low voltages, 4,7 m;

– for hig v olt ages, 5,5 m

If t he req ired minimum cle ran e can ot b provided an u les ot her w ise sp cified by nat ional reg lat ion,

t he max imum heig t of ro d v ehicles p rmit t ed t o p s u der t he ov erhe d contact lne s al b lmit ed so as

t o g arant ee t he folowin minimum v ert ical cle ran es b tween t he hig est p int of ro d v ehicle (lo d

in lu ed) an t he lve p rt s:

a) for low voltages:

1) 0,5 m, w here only ro d t rafic sig s in icatin t he max imum p rmis ible v ehicle heig t are ut ilzed,

2) 0,3 m, w here ad itional fix ed b riers (e.g a r igid o st acle or a firmly fix ed met al c w ire made

v isible by me n of a s sp n ed w arnin sig ) are er ect ed on b th sides of t he cros in , ph sicaly

lmit in s c vehicle heig t ;

b) for hig v olt ages:

1) 1,0 m, w here only ro d t rafic sig s in icatin t he max imum p rmis ible v ehicle heig t are ut ilzed,

2) 0,5 m, w here ad itional fix ed b riers (e.g a r igid o st acle or a firmly fix ed met al c w ire made

v isible by me n of a s sp n ed w arnin sig ) are er ect ed on b th sides of t he cros in , ph sicaly

lmit in s c vehicle heig t

5.2.5 F e ers abov loa ing roa s

Fe ders or lne fe ders in hig v olt age s stems s ould not b situat ed a ove lo din ro d or lo din

sidin s When not avoida le, t here s al b a minimum v ert ical dist an e of 12,0 m b t w een s races of t he

lo din plat form (ramps) an fe ders

5.2.6 Cle ran e betwe n lv part s of ov rh a conta t lne s st ems a d tre s

For raiw ay wit h hig v olt age, t he distan e b tween the lve p rt s of t he ov erhe d cont act lne s st em an

bran hes of t re s or bu hes s al b at le st 2,5 m w it h no w in or ice lo din

5.3 Prote t ion by obsta les

5.3.1 Ge eral

If t he cle ran es giv en in 5.2.1 t o 5.2.5 can ot b maint ained, o st acles s al b pr ovided as protect ion

again t direct cont act w it h lv e p rt s The desig of o st acles is de en ent on the location of t he st an in

s races s own in Fig re 5 an Fig r e 6 relativ e to t he lve p rt s, on the nominal voltage, on t he cle ran e

b tween t he o st acle an the lv e p rt s an on whet her t he st an in s race is a rest rict ed are or a publc

4 work in plat form

NOT Th n mb rs refer to th a pro riat e s b la s s

Fig re 5 — Sta din s rfa e for person providin a c s to lv parts on the outsid of

v hicle a d to ov rhe d conta t ln sy st ems

NOT Th n mb rs refer to th a pro riat e s b la s s

Fig re 6 — Sta din s rfa e for person providin a c s to lv parts on the outsid of

v hicle a d t o cond ct or rai sy stems

Only o st acles of t he folow in typ may b prov ided:

– sold wals or sold wal do rs;

– mes con t ru t ion

In ide the ov er he d cont act lne zone an c rent colect or zone t he folow in sp cificat ion s al b met by

o st ac les:

a) non con u tive o stacles s al b of sold wals or sold wal do rs

1) for s st ems of hig voltages, o st acles w it hin 0,6 m of lve p rt s s al prov ide e rt hed fame;

2) t he mat erials s al b select ed so t hat they w il not b come con u t iv e as a r es lt of t he lkely

efect s of moist ure, ult ra-v iolet radiat ion, c emical a ac an ot her env ironment al damage, nor of

cont act w it h lv e p rt s

b) mes con t ru t ion of plastic co t ed met al s al not b ut ilzed

The o st acle s al b con tru t ed to prevent non-intentional (ac ident al) contact of lve p rt s wit h p rt s of the

b d Obst acles s al b fix ed mec anicaly an rela ly They s al only b remov able w it h to ls Obst acles

s al b sec r ed to en ur e t hat he dist an e t o lv e p rts is maint ained

Minimum cle ran es s al b maint ained b tween o st acles an lv e p rt s The elect rical cle ran e s al

coresp n to t he relevant cle ran e as given in EN 5 1 9 t o w hic t he folow in len t hs s al b ad ed:

– 0,0 m for sold wals or sold-wal do rs, if bu kln or w arpin can ot b ex c lu ed;

– 0,10 m for mes con t ru t ion , where no other minimum cle ran e is given in 5.3.2.1 an 5.3.3.1

5.3.2 Obst acle for sta ding s rfa e in publc area

5.3.2.1 Obsta le for sta din s rfa e a ja e t to lv parts

The cle ran es s own in Fig re 3 an Fig re 4 s al b prov ided for st an in s races t o adjacent lv e p rt s

of t he out side of t he v ehicles or lv e p rt s of cont act lne s stem If t hese cle ran es are not ac iev ed, then,

o st ac les s al b prov ided w hic s al comply w it h t he folow in req irement s

If t he c le ran e in heig t b tween t he t op of t he o stacle an lv e p rt s is at le st 1,0 m (se Fig re 7 a)

t he o st acle s al b of sold-wal desig or IP2X ac ordin t o EN 6 5 9 for low v olt age 1,0 m hig ,

s rmou t ed by a mes con t ru t ion wit h a max imum 1 2 0 mm² mes siz e t o an ov eral heig t of at le st

1,8 m Su h mes s al b aran ed so as t o en ure t hat the o st acle r emain u clmb ble If t his

cle ran e is not ac ieved, t he o st acle s al b of sold-wal desig (or IP2X for low v olt age) 1,8 m hig

(se Fig re 7 b) The dimen ion d b tween t he o st acle an lv e p rt s, s own in Fig re 7, s al b

det ermined as des rib d in 5.3.1

The o st acle s al have no ga to t he st an in s race

The t op of s c o st acles s al b desig ed so, t hat it is dific lt t o st an or to walk on t hem

Dimen ion in met res

h

≥

1,8

0,5a

0,5a

1 s ld-wal d sig or o st acle c nformin to prot ec t io Cla s IP2X a d fin d in EN 6 5 9

2 me h s re n wit h a ma imum 1 2 0 mm² me h siz (c n als b s ld-wal d sig )

3 lmit t o lv e p rts

d is th cle ra c in air b t we n t he o sta le a d lv e p rts in a c rd n e with 5.3.1

x is a a ditio al dist an e:

x = 0 for s ld wal d sig

x = 1,0 for IP2X for low v olta e

Fig re 7 — Ex ample of obst acle for st andin s rfa e in publc are s for prot ec on a ain t

dire t cont act with a ja e t lv parts on t he outsid of v hicle or a ja e t l v part s of a

cont act ln system

5.3.2.2 Obsta le a d sta din s rfa e ab v lv part s

St an in s races a ov e lv e p rt s on t he out side of v ehicles or a ove lv e p rts of a cont act lne s st em

s al b of sold-w al desig

The len th of t he sold-waled st an in s race s al coresp n t o the c rent colector zone an ex t en

b yon t he lv e p rt s of a cont act lne s st em by at le st 0,5 m on e c side In the case of con u tors not

b in u ed for c rent colect ion (e.g lne fe ders, reinforcin fe ders, out of ru nin ov erhe d cont act lnes)

t here s al b a widt h of at le st 0,5 m on e c side of t he con u tor provided t hat mov ement d e t o

d namic an t hermal efect s has b en t aken int o ac ou t

h Heig t

ˆ

‰

NOT 2 In a ditio t o t he re uireme ts for ele t ric l s fet y t here ma b a ditio al re uireme ts for o st acle to prov id for s c rity

a c rdin t o n tio al re ulatio s

5.3.3 Obst acle for sta ding s rfa e in re tricte are s

5.3.3.1 Obsta le for sta din s rfa e a ja e t to lv parts

Wit h st an in s races adjacent t o lve p rt s on t he out side of v ehicles or adjacent t o lv e p rt s of a cont act

lne s stem, o st acles of mes s re n con t ru t ion with a max imum 1 2 0 mm² mes siz e an havin a

heig t h of at le st 1,8 m may b u ed w here t he lve p rt s are sit uated a ove t he st an in s race (se

Fig re 8 a) for low voltage an Fig re 9 a) for hig v oltage)

If t he lv e p rt s are situated at the same heig t or lower than the st an in s race, t he heig t h of t he

o st acle s al b s c that a cle ran e of:

– for low voltage 1,3 m,

– for hig v olt age 1,5 m,

fom t he t op of t he o st acle is maint ained as s ow n in Fig re 3 (se Fig re 8 b) for low v olt age) an Fig re 4

(se Fig r e 9 b) for hig volt age)

The cle ran e b tw een t he o st acle an t he lv e p rt s s al b at le s

– for low voltage 0,3 m,

– for hig v olt age 0,6 m

Alon t he sides of t hese stan in s races, o st acles s al b provided in order t o prev ent an direct cont act

w it h lv e p rt s on the outsides of v ehicles an to lv e p rt s of t he cont act lne s stem ev en w here, for

ex ample, a rod or lq id jet is ut ilzed These o st acles s al b pr ovided ov er a len t h that coresp n s at

le st t o the man at ory len t h of t he st an in s race whic is in sold-wal desig The o st acles can eit her

b an con t ru t ion coresp n in t o Clas IP3X ac ordin t o EN 6 5 9 or an ot her con t ru t ion givin t he

same level of safety

In case of horizont al o st acles ex t en in b yon t he vert ical o st acle by at le s

– 0,5 m for low voltage,

– 1,5 m for hig v olt age,

t hen, in resp ct of t he folowin :

– for low voltage a 1,4 m lateral cle ran e as s ow n in Fig re 3,

– for hig v olt age a 2,2 m lat eral cle ran e as s ow n in Fig re 4

it is ac e t able to refer t hem t o t he t op of t he vert ical o st acle, in t ead of referin t hem t o t he ed e of t he

st an in s race (se Fig re A.1 a) for low v olt age an Fig re A.2 a) for hig volt age) The heig t of t he

v ert ical o st acle s al b con eq ently in re sed w henev er neces ar y, in or der t o ac iev e this cle ran e

The horizontal o st acle s al b desig ed so t hat it is dific lt t o st an or to walk on t hem

NOT 1 To a hiev e t his, t he h riz nt al o st acle s o ld b d sig e s th t it is o v io sly n t a sta din s ra e, or it s o ld b

in ln d u ward or d wnw ard (s e Fig re A.1 a) for low v olt ag a d Fig re A.2 a) for hig v olta e)

Whenev er this horizont al o st acle is not presen t he v ert ical o st acle s al conform t o t he req irement s of

5.3.2.1 (se Fig re A.1 b) for low v olt age an Fig re A.2 b) for hig v oltage) The alternative solution (se

Fig re A.1 c) for low volt age an Fig re A.2 c) for hig v olt age) is also ac e t able

The t ops of s c o st acles s al b desig ed so that it is dific lt t o st an or t o w alk on t hem

A ny v ert ic al o st ac le s al b of sold w al desig for low v olt age an hig v olt age, or Clas IP2X as

defined in EN 6 5 9 for low v olt age only , an at le st t o a heig t of 1,0 m (se Fig re A.1 for low

v olt age an Fig re A.2 for hig v olt age), ex c ept in t he c ase of t he a ov e said horizont al o st ac le, w here a

rai n is s fic ien if t he c le ranc es req ired by Fig re 3 an Fig re 4 are presen

If t his cle ran e is not maint ained, t he o st acles s al b desig ed in ac ordan e wit h 5.3.4 for low v olt age

or b of sold-wal desig an le ve no ga b tween the o stacle an the st an in s race (se Fig re 8 c)

an Fig re 8 d) for low v oltage an Fig re 9 c) an Fig re 9 d) for hig v olt age) The dimen ion d b tw een

t he o st acle an lve p rt s, s own in:

– for low voltage in Fig re 8, an

– for hig v olt age in Fig re 9,

s al b determined as des rib d in 5.3.1

Dimen ion in met res are minimum dimen ion

1,3a

1,3ad

0,3c

1 s ld-wal d sig or o st acle c nfirmin t o prote t io Cla s IP2X a d fin d in EN 6 5 9

2 me h s re n wit h a ma imum 1 2 0 mm² me h siz (c n als b s ld-wal d sig )

Fig re 8 — Ex ample of obsta le for sta din s rfa e in restricte are s for prote tion

a ain t dire t conta t wit h a ja e t lv part s on th out side of v hicle or a ja e t lv part s

of a conta t ln s st em for low volta e

h Heig t

Dimen ion in met res are minimum dimen ion

1,5a

1,5aa)

Fig re 9 — Ex ample of obsta le for sta din s rfa e in restricte are s for prote tion

a ain t dire t conta t wit h a ja e t lv part s on th out side of v hicle or a ja e t lv part s

of a conta t l n s stem for hig volta e

5.3.3.2 Obst acle for sta ding s rfa e ab v l v part s

For st an in s races a ove lve p rt s on t he out side of v ehicles or a ov e lv e p rt s of a cont act lne s st em,

t he o stacles s al b desig ed ac ordin t o 5.3.4 for low v olt age or s al b sold-wal desig (se

Fig re 10 a) an Fig re 1 ) If t he cle r an e b twe n t he o st acles an t he lve p rt s is at le st 0,6 m for

low voltage, walkway whic in lu e a mes con t ru t ion with a max imum 1 2 0 mm² mes siz e, may b

provided as o st acles (se Fig re 10 b)

The len t h of t he sold-waled or mes con t ru t ion st an in s race s al coresp n t o t he c rent colect or

zone an ex ten b yon t he lve p rt s of a cont act lne s st em by at le st 0,5 m on e c side In t he case

of con u t ors not b in u ed for c rent colect ion (e.g lne fe ders, reinforcin fe ders, out of ru nin

ov erhe d contact lnes) t here s al b a w idt h of at le st 0,5 m on e c side of t he con u t or provided that

mov ement d e t o d namic an thermal efect s has b en t aken int o ac ou t

Obst acles of mes s re n con t ru t ion with a max imum 1 2 0 mm² mes size s al b at le st pr ovided at

t he sides of s c st an in s races The heig t h of t he o st acles s al b s c that a cle ran e of:

– for low voltage 1,3 m as s own in Fig re 3 (se Fig re 10 a) an Fig re 10 b) ;

– for hig v olt age 1,5 m as s ow n in Fig re 4 (se Fig re 1 );

fom t he t op of t he o st acles is maint ained These o st acles s al b at le st as lon as t he len t h of t he

0,5b

1,3a

1,3a

1 s ld-wal d sig or o st acle c nfirmin t o prote t io Cla s IP2X a d fin d in EN 6 5 9

2 me h s re n wit h a ma imum 1 2 0 mm² me h siz (c n als b s ld-wal d sig )

Fig re 10 — Ex ample of obst acle for sta din s rfa e in re t rict ed are s for prote tion

a ain t dire t conta t wh n ab v l v parts on t he out sid of v hicle or lv parts of a

cont act l n system for low volt ag

h Heig t

Dimen ion in met res are minimum dimen ion

1,5ah

0,5bd

Fig re 1 — Ex ample of obst acle for sta din s rfa e in re t rict ed are s for prote tion

a ain t dire t cont act wh n abov lv parts on t he outsid of v hicle or l v parts of a

ov rh a cont act ln s st em for hig volta e

5.3.4 Prote tion d gre for obsta le for low volta e

For low v olt ages t he o st acles s al me t t he req irement s for prot ect ion degre IP2X ac ordin t o

EN 6 5 9 w it h a minimum dist an e t o lv e p rt s of 0,5 m or s al b of sold wal desig

5.3.5 Anti cl mbin provision

Anti-clmbin pr ovision are not normaly neces ar y In ju t ified cases howev er, ant i-clmbin provision can

The elect rical in t alation s al b con t ru t ed an in t aled t o en ure t hat t he me s res neces ar y for t he

prot ect ion of p rson workin in or on elect rical in t alat ion can b employed The rules for o eration an

maint enan e of elect r ical p wer in t alation s al also b t aken int o ac ou t in t he desig The workin

proced res s al b agre d on b tween man fact urer an u er

This do s not a ply t o locat ion for whic t his req irement is t ec nicaly imp s ible, e.g for sect ion

in ulat ors, cros in p int s of ov erhe d contact lnes of t ramway an t roleybu es an for t roleybu

ov erhe d contact lnes

NOT This re uireme t c n b me for example, b in t alat io of a dit io al in ulatio in t he ov erh a c nta t ln s st em to

a hiev e n utral s ct io s e c at le st 0,5 m lo g, whic e s re th t simult an o s c ntac t with difere t p te tials in th imme iate

workin are is o v iate co mplet ely r t o a c n id ra le e te t

In ulat ors whose desig is s c t hat s p ort in st r uct ures may b come lv e u der fault con ition (e.g

sad le in ulat ors or bu kle in ulators) s al not b uti zed for t he overhe d contact lne s st em where lv e

w orkin s al b u dert aken

5.4.2 Ov rh a cont act l n s for raiwa s or tramwa s be e th structure

In t he case of overhe d cont act lnes s sp n ed b ne t h st ru t ures (t un els, u derp s es) w here work is t o

b ex ec t ed fom an in ulated plat form whist t he lne is energised, in ulated o st acles or o st acles

in ulat ed w it h resp ct t o t he st ru t ure of minimum widt h 1,0 m s al b prov ided on b t h sides of t he t rack

cent re if t he cle ran e t o st ru t ural element s con ected t o e rt h is les t han 1,0 m (se Fig re 12) These

o st acles s al b 0,5 m lon er than t he ed e of t he st ru t ure

Dimen ion in met res

<1,00,5

3

4

156

NOT Th st ag er h s b e t ak en int o c on id ratio wit hin t he dime sio of 1,0 m

Fig re 12 — Ex ample of a in ulate o st acle be e t h a stru ture