Iec ts 62257 5 2015

I EC TS 62257-5 ® Ed i ti on 201 5-1 TECH N ICAL SPECIFICATION colour i n sid e Recomm en dati on s for ren ewabl e en erg y an d h ybri d system s for ru ral el ectri ficati on – I E C TS 62 257-5: 201 5-1 2(en ) Part 5: Protecti on agai n st electrical hazards International Electrotechnical Commission T H I S P U B L I C AT I O N I S C O P YRI G H T P RO T E C T E D C o p yri g h t © I E C , G e n e v a , S wi tz e rl a n d Al l or ri g h ts by re s e rve d an y e i th e r m eans, IEC c o p y ri g h t yo u r IEC 3, or or l ocal I EC C e n t l ru e de CH -1 21 I E C's h a ve U n l es s o th e rwi s e e l e c t ro n i c or m em be r an N ati o n a l e n q u i ry m em be r s p e c i fi e d , m e ch a n i c a l , a bo u t N a ti o n a l no p a rt i n cl u d i n g C o m m i t te e o b ta i n i n g C o m m i tt e e th e p u b l i c a ti o n c o u n t ry a d d i ti o n a l fo r O ffi c e in of th i s p h o t o c o p yi n g fu rt h e r ri g h t s an d of th e to th i s re p ro d u c e d re q u e s t e r wi t h o u t If yo u h a ve pl eas e or u ti l i z e d p e rm i s s i o n an y c o n t a ct in in an y q u e s ti o n s th e fo rm wri t i n g fro m ab o u t a d d re s s I EC bel ow or i n fo rm a t i o n Tel : + 41 22 91 02 1 F a x: +41 22 91 03 00 G e n e va i n fo @ i e c c h 20 be p u b l i c a ti o n , V a re m b é S wi t ze rl a n d m ay m i c ro fi l m , www i e c c h Ab ou t th e I E C Th e I n t e rn a ti o n a l I n t e rn a t i o n a l E l e c t ro t e c h n i c a l S t a n d a rd s fo r al l Com m i ssi o n e l e c t ri c a l , (I E C ) e l e c t ro n i c and is th e re l a t e d l ea d i n g g l obal o rg a n i z a t i o n th a t p re p a re s an d pu bl i sh es tech n o l o g i es Ab o u t I E C p u b l i ca ti o n s Th e tech n i cal l ates t e d i ti o n , co n te n t a of IEC c o rri g e n d a p u b l i c a ti o n s or an is ke p t am en d m en t u n d er might c o n s ta n t h a ve been I E C C atal og u e - webs tore i ec ch /catal og u e Th e s ta n d - a l o n e b i b l i o g p h i ca l Te ch n i ca l a p p l i cati o n i n fo rm ati o n on S p eci fi cati o n s , d o cu m e n ts Ava i l a b l e fo r fo r I EC PC, M ac th e I n te rn a ti o n a l An d ro i d e n ti re S ta n d a rd s , Re p o rts OS, an d o th e r Ta b l ets an d i Pad a d va n ce d va ri e ty of s e a rch e n a b l es cri te ri a com m i tte e , … ) an d th e Th e wo rl d ' s e l e ctri ca l wi th d wn It to (re fe re n ce al so g i ve s fi n d I EC i n fo rm ati o n on P l e as e m a ke s u re th a t yo u h a ve th e d e fi n i ti o n s in a d d i ti o n a l on l i n e co n ta i n i n g Engl ish an d l an g u ag es d i cti o n a ry m o re F re n ch , Al s o Voca b u l a ry th a n wi th e l e ctro n i c 000 as th e an d te rm s e q u i va l e n t kn o wn (I E V) of 30 te rm s an d in I n te rn a ti o n a l on l i n e I E C G l os s ary - s td i ec ch /g l os s ary p u b l i ca ti o n s n u m b e r, I EC l ead i n g te rm s E l e ctro tech n i ca l I E C pu bl i cati on s s earch - www i ec ch /s earch pu b Th e by E l ectroped i a - www el ectroped i a org co n s u l ti n g Te ch n i ca l re vi e w pu bl i sh ed te xt, by a tech n i cal p ro j e cts , re p l a ce d M o re th a n En g l i sh cl a u s e h a ve p u b l i ca ti o n s 77, 60 an d of I EC been 86 an d 000 F re n ch e l ectrote ch n i ca l e xtra cte d p u b l i cati o n s co l l ecte d from from i ss u e d e a rl i e r te rm i n o l o g y th e Te rm s s i n ce an d 2002 p u b l i ca ti o n s e n tri e s S om e of in D e fi n i ti o n s I EC e n tri e s TC 37, CI S P R I E C J u s t Pu bl i s h ed - webs tore i ec ch /j u s tpu bl i s h ed S ta y up d e ta i l s al so to al l o n ce d ate n ew a on al l n ew p u b l i cati o n s m o n th b y em a i l I EC p u b l i ca ti o n s re l ea s e d J ust Ava i l a b l e P u bl i sh ed on l i n e an d I E C C u s tom er S ervi ce C en tre - webs tore i ec ch /cs c If yo u n eed wi s h C e n tre : International Electrotechnical Commission to g i ve us fu rth e r a ss i s ta n ce , csc@ i ec ch yo u r fe e d b a ck p l e as e ta ct on th e th i s p u b l i ca ti o n or C u s tom e r S e rvi ce I E C TS 62 57-5 ® Ed i ti on 201 5-1 TE C H N I C AL S PE C I FI C ATI ON colour i n sid e Recom m en d ati on s for ren ewabl e en erg y an d h ybri d s ys tem s for ru ral el ectri fi cati on – P art 5: Protecti on ag n s t el ectri cal h azard s I N TERN ATI ON AL ELECTROTECH N I CAL COM MI SSI ON I CS 27 60 I SB N 978-2-8322-3070-1 Warn i n g ! M ake s u re th at you obtai n ed th i s pu bl i cati on from an au th ori zed d i stri bu tor ® Reg i stered trad emark of th e I n ternati on al El ectrotech ni cal Commi ssi on International Electrotechnical Commission – – I E C TS 62 57-5:  I EC 201 C O N TE N TS F O R E W O RD I N T RO D U C T I O N S cope N o rm a ti ve re fe re n ce s T e rm s a n d d e fi n i ti o n s C l a s s i fi c a ti o n o f d e c e n tra l i s e d ru l e l e ctri fi c a ti o n s ys te m s 1 P ro te cti o n a g a i n s t e l e ctri c s h o ck 1 G e n e l 1 Re q u i re m e n ts o n th e d c s i d e o f a D R E S 1 Re q u i re m e n ts o n th e a c s i d e o f a D R E S G e n e l TT s ys te m 3 T N s ys te m P ro te cti o n a g a i n s t o ve rc u rre n t G e n e l P ro te cti o n a g a i n s t o ve rl o a d c u rre n ts P ro te cti o n a g a i n s t s h o rt- ci rc u i ts P ro te cti o n a g a i n s t ri s k o f fi re P ro te cti o n a g a i n s t e ffe cts o f l i g h tn i n g P ri n ci p l e E xam pl es P ro te cti o n a g a i n s t o ve rvo l ta g e P ro te cti o n a g a i n s t d i re ct l i g h tn i n g D e te rm i n a ti o n o f th e p i ck u p a re a o f a ro d o r wi re ( s e e I E C - : ) G e n e l O p e ti o n a l c o n d i ti o n s a n d e xte rn a l i n fl u e n c e s W i ri n g s ys te m I s o l a ti o n a n d s wi tc h i n g I s o l a ti o n O ve r- c u rre n t p ro te cti ve d e vi ce s 9 Re s i d u a l C u rre n t D e vi c e s ( R C D ) S u rg e p ro te c ti ve d e vi c e s E a rth i n g a rra n g e m e n t, p ro te cti ve c o n d u c to rs a n d p ro te cti ve b o n d i n g co n d u cto rs E a rth e l e ctro d e s P ro te cti ve b o n d i n g co n d u cto rs 10 Ve ri fi c a ti o n 11 O p e ti o n a n d m a i n te n a n ce An n e x A ( i n fo rm a ti ve ) P ro te cti o n a g a i n s t e l e ctri c s h o ck i n e l e c tri ca l i n s ta l l a ti o n s A P ro te cti o n a g a i n s t e l e ctri c s h o ck A Au to m a ti c d i s co n n e c ti o n o f s u p p l y A G e n e l A I n T N s ys te m s A A International Electrotechnical Commission I n T T s ys te m s D o u b l e o r re i n fo rc e d i n s u l a ti o n 2 I E C TS 62 57-5: 01 A  I EC 201 – – E xtra - l o w- vo l ta g e ( S E L V a n d P E L V) 2 A E l e c tri c a l s e p a ti o n 2 A Ad d i ti o n a l p ro te c ti o n An n e x B ( i n fo rm a ti ve ) T yp e s o f L V d i s tri b u ti o n s ys te m s e a rth i n g B T e rm s a n d d e fi n i ti o n s B T yp e s o f s ys te m e a rth i n g u s e d i n D R E S ( F i g u re s a re fro m I E C 6 - : 0 ) B G e n e l B 2 AC T N s ys te m s B AC T T s ys te m s B D C d i s tri b u ti o n s ys te m s An n e x C ( i n fo rm a ti ve ) C C l a s s i fi c a ti o n o f re s i d u a l cu rre n t d e vi c e s ( R C D s ) IEC C C l a s s i fi c a ti o n o f e l e ctri c a l e q u i p m e n t 61 009, I EC 607 55, I E C (see I E C 61 00 8, 60947-2, I EC 6242 3) 41 C l a s s i fi c a ti o n o f c i rcu i t b re a ke rs fo r a c o p e ti o n (see I EC 60898- , I EC 60947-2) 42 C C l a s s i fi c a ti o n o f s u rg e p ro te cti ve d e vi ce s ( s e e I E C 6 - 1 ) An n e x D ( i n fo rm a ti ve ) G e n e l i n fo rm a ti o n co n c e rn i n g p ro te c ti o n a g a i n s t l i g h tn i n g 4 D G e n e l 4 D P ro te cti o n a g a i n s t l i g h tn i n g – P ri n ci p l e s B i b l i o g p h y F i g u re B – G e n e l o u tl i n e o f th e d i s tri b u ti o n s ys te m F i g u re B – D i s tri b u ti o n s ys te m o f th e s m a l l e s t t yp e F i g u re B – T N - S s ys te m - p h a s e , - wi re wi th s e p a te n e u tra l c o n d u cto r a n d p ro te cti ve c o n d u cto r th ro u g h o u t th e d i s tri b u ti o n s ys te m F i g u re B – T N - S s ys te m - p h a s e , - wi re wi th s e p a te e a rth e d l i n e c o n d u c to r a n d p ro te cti ve c o n d u cto r th ro u g h o u t th e d i s tri b u ti o n s ys te m F i g u re B – T N - S s ys te m - p h a s e , - wi re wi th p ro te cti ve c o n d u c to r a n d n o d i s tri b u te d n e u tra l co n d u c to r th ro u g h o u t th e d i s tri b u ti o n s ys te m F i g u re B – T N - C - S s ys te m - p h a s e , - wi re wh e re th e P E N c o n d u c to r i s s e p a te d i n to th e p ro te c ti ve co n d u cto r P E a n d th e n e u tra l c o n d u cto r N e l s e wh e re i n th e e l e c tri ca l i n s ta l l a ti o n F i g u re B – T N - C - S s ys te m - p h a s e , - wi re wh e re th e P E N c o n d u c to r i s s e p a te d i n to th e p ro te c ti ve co n d u cto r P E a n d th e n e u tra l c o n d u cto r N a t th e o ri g i n o f th e e l e c tri ca l i n s ta l l a ti o n F i g u re B – T N - C - S s ys te m – s i n g l e - p h a s e , - wi re wh e re th e P E N c o n d u c to r i s s e p a te d i n to th e p ro te c ti ve co n d u c to r P E a n d th e n e u tra l co n d u cto r N a t th e o ri g i n o f th e e l e ctri c a l i n s ta l l a ti o n F i g u re B – T N - C s ys te m - p h a s e , - wi re wi th n e u tra l a n d p ro te c ti ve co n d u c to r fu n cti o n s c o m b i n e d i n a s i n g l e c o n d u cto r th ro u g h o u t th e d i s tri b u ti o n s ys te m 3 F i g u re B – T N - S m u l ti p l e s o u rc e s ys te m - p h a s e , - wi re wi th s e p a te p ro te cti ve co n d u cto r a n d n e u tra l co n d u c to r to c u rre n t u s i n g e q u i p m e n t F i g u re B 1 – T T s ys te m - p h a s e , - wi re wi th e a rth e d p ro te c ti ve co n d u c to r a n d n e u tra l co n d u cto r th ro u g h o u t th e d i s tri b u ti o n s ys te m F i g u re B – T T s ys te m - p h a s e , - wi re wi th e a rth e d p ro te c ti ve co n d u c to r a n d n o d i s tri b u te d n e u tra l c o n d u cto r th ro u g h o u t th e d i s tri b u ti o n s ys te m F i g u re B – T N - S d c s ys te m F i g u re B – T N - C d c s ys te m F i g u re B – T N - C - S d c s ys te m International Electrotechnical Commission – – I E C TS 62 57-5:  I EC 201 F i g u re B – T T d c s ys te m F i g u re D – E x a m p l e o f e ffe cts o f a l i g h tn i n g s tro ke 4 T a b l e – T yp o l o g y o f d e ce n tra l i ze d e l e c tri fi c a ti o n s ys te m s 1 T a b l e – R a te d o p e ti n g re s i d u a l c u rre n t o f th e p ro te cti ve d e vi ce d e p e n d i n g o n th e va l u e o f th e e a rth i n g re s i s ta n c e T a b l e – N u m b e r o f p ro te cte d p o l e s wi th re g a rd to th e ch a cte ri s ti cs o f th e d i s tri b u ti o n s ys te m International Electrotechnical Commission I E C TS 62 57-5: 01  I EC 201 – – I N TE RN ATI O N AL E L E C TRO TE C H N I C AL C O M M I S S I O N RECOM MEN DATION S FOR REN EWABLE EN ERGY AN D H YBRID SYSTEMS FOR RU RAL ELECTRI FICATION – Part 5: Protection against electrical hazards F O RE W O RD 1) T h e I n te rn a ti o n a l E l e c t ro t e c h n i c a l C o m m i s s i o n ( I E C ) i s a wo rl d wi d e o rg a n i za t i o n fo r s ta n d a rd i z a ti o n c o m p ri s i n g al l n a ti o n a l e l e c tro t e c h n i c a l c o m m i t te e s (I E C N a ti o n a l C o m m i tt e e s ) Th e o b j e ct of I EC is to p ro m o te i n te rn a ti o n a l c o - o p e ti o n o n a l l q u e s ti o n s c o n c e rn i n g s ta n d a rd i za t i o n i n th e e l e c t ri c a l a n d e l e c tro n i c fi e l d s T o th i s end an d Te ch n i ca l in ad d i ti o n Re p o rts , to o t h e r a c ti vi ti e s , P u bl i cl y Ava i l a b l e IEC pu bl i sh es S p e c i fi c a t i o n s I n te rn a ti o n a l (P AS ) an d S t a n d a rd s , G u i des Te ch n i ca l ( h e re a fte r S p e c i fi c a t i o n s , re fe rre d to as “I E C P u b l i c a ti o n ( s ) ” ) T h e i r p re p a t i o n i s e n t ru s t e d to t e c h n i c a l c o m m i tt e e s ; a n y I E C N a t i o n a l C o m m i tt e e i n te re s te d in th e s u b j e ct d eal t wi th may p a rt i c i p a te in th i s p re p a t o ry wo rk I n t e rn a t i o n a l , g o v e rn m e n ta l o rg a n i z a ti o n s l i a i s i n g wi th th e I E C a l s o p a rt i c i p a te i n t h i s p re p a ti o n wi th th e I n t e rn a ti o n a l O rg a n i z a ti o n fo r S ta n d a rd i za t i o n (I S O) in a c c o rd a n c e wi th g o ve rn m e n t a l an d n on - I E C c o l l a b o t e s c l o s e l y co n d i ti o n s d e t e rm i n e d by a g re e m e n t b e t we e n th e t wo o rg a n i za ti o n s 2) T h e fo rm a l d e c i s i o n s o r a g re e m e n ts o f I E C o n te c h n i c a l m a t te rs e xp re s s , a s n e a rl y a s p o s s i b l e , a n i n t e rn a t i o n a l co n s e n s u s of opi n i on on th e re l e v a n t s u b j e cts s i n ce e a ch te ch n i ca l c o m m i t te e has re p re s e n ta ti o n fro m al l i n te re s te d I E C N a ti o n a l C o m m i t te e s 3) I E C P u b l i c a t i o n s h a ve th e fo rm o f re c o m m e n d a t i o n s fo r i n t e rn a t i o n a l C o m m i tte e s i n t h a t s e n s e W h i l e a l l P u b l i c a ti o n s is a c c u te , IEC u se an d a re a c c e p t e d b y I E C N a ti o n a l re a s o n a b l e e ffo rt s a re m a d e to e n s u re t h a t t h e t e c h n i c a l c o n te n t o f I E C ca n n o t be h el d re s p o n s i b l e fo r th e wa y in wh i c h th ey a re used or fo r an y m i s i n t e rp re t a t i o n b y a n y e n d u s e r 4) In o rd e r t o p ro m o te t n s p a re n t l y to i n te rn a t i o n a l th e m a xi m u m u n i fo rm i ty, e xte n t I EC possi bl e in N ati o n a l th e i r C o m m i tte e s n a ti on al an d u n d e rta ke re g i o n a l to appl y I EC p u b l i cati o n s P u b l i ca ti o n s An y d i v e rg e n c e b e t we e n a n y I E C P u b l i c a ti o n a n d t h e c o rre s p o n d i n g n a ti o n a l o r re g i o n a l p u b l i c a t i o n s h a l l b e c l e a rl y i n d i c a te d i n t h e l a tt e r 5) I E C i t s e l f d o e s n o t p ro vi d e a n y a tt e s ta ti o n o f c o n fo rm i t y a s s e s s m e n t s e rvi c e s a n d , i n s o m e a re a s , I n d e p e n d e n t c e rti fi c a ti o n b o d i e s p ro v i d e c o n fo rm i t y a c c e s s t o I E C m a rk s o f c o n fo rm i ty I E C i s n o t re s p o n s i b l e fo r a n y s e rvi c e s c a rri e d o u t b y i n d e p e n d e n t c e rt i fi c a t i o n b o d i e s 6) 7) Al l u s e rs s h o u l d e n s u re th a t t h e y h a v e t h e l a t e s t e d i ti o n o f th i s p u b l i c a ti o n N o l i a b i l i t y s h a l l a tta c h to I E C o r i ts d i re c to rs , e m p l o y e e s , s e rva n t s o r a g e n ts i n c l u d i n g i n d i vi d u a l e xp e rt s a n d m e m b e rs o f i t s t e c h n i c a l c o m m i tt e e s a n d I E C N a t i o n a l C o m m i t te e s fo r a n y p e rs o n a l i n j u ry, p ro p e rty d a m a g e o r oth e r d am ag e e xp e n s e s of a n y a ri s i n g ou t n a tu re wh a t s o e v e r, wh e th e r d i re c t of p u b l i c a ti o n , u se th e o f, or o r i n d i re c t , re l i a n c e u pon , o r fo r c o s t s th i s I EC (i n cl u d i n g P u b l i cati o n or l eg al fe e s ) and any o th e r I EC P u b l i ca ti o n s 8) Atte n ti o n i s d wn t o th e N o rm a t i ve re fe re n c e s c i t e d i n t h i s p u b l i c a ti o n U s e o f th e re fe re n c e d p u b l i c a t i o n s i s i n d i s p e n s a b l e fo r th e c o rre c t a p p l i c a ti o n o f th i s p u b l i c a t i o n 9) Atte n ti o n i s d wn t o th e p o s s i b i l i t y th a t s o m e o f th e e l e m e n ts o f th i s I E C P u b l i c a t i o n m a y b e th e s u b j e c t o f p a te n t ri g h t s I E C s h a l l n o t b e h e l d re s p o n s i b l e fo r i d e n ti fyi n g a n y o r a l l s u c h p a t e n t ri g h t s Th e m n ta s k of I EC te c h n i c a l c o m m i tte e s is to p re p a re I n te rn a ti o n a l S ta n d a rd s In e xce p ti o n a l c i rc u m s ta n c e s , a te ch n i c a l c o m m i tte e m a y p ro p o s e th e p u b l i c a ti o n o f a te c h n i ca l s p e c i fi ca ti o n wh e n • th e re q u i re d s u p p o rt c a n n o t b e o b ta i n e d fo r th e p u b l i c a ti o n o f a n I n te rn a ti o n a l S ta n d a rd , d e s p i te re p e a te d e ffo rts , o r • th e s u b j e c t i s s ti l l u n d e r te ch n i c a l d e ve l o p m e n t o r wh e re , fo r a n y o th e r re a s o n , th e re i s th e fu tu re b u t n o i m m e d i a te p o s s i b i l i t y o f a n a g re e m e n t o n a n I n te rn a ti o n a l S ta n d a rd T e ch n i c a l s p e c i fi c a ti o n s a re s u b j e ct to re vi e w wi th i n th re e ye a rs o f p u b l i c a ti o n to d eci d e wh e th e r th e y ca n b e tra n s fo rm e d i n to I n te rn a ti o n a l S ta n d a rd s I EC 62257-5, wh i ch is a te c h n i ca l s p e c i fi c a ti o n , co m m i tte e : S o l a r p h o to vo l ta i c e n e rg y s ys te m s International Electrotechnical Commission h as been p re p a re d by I EC te c h n i ca l – – I E C TS 62 57-5:  I EC 201 T h i s s e co n d e d i ti o n c a n c e l s a n d re p l a ce s th e fi rs t e d i ti o n i s s u e d i n 0 I t co n s ti tu te s a te c h n i c a l re vi s i o n T h e m a i n te ch n i c a l c h a n g e s wi th re g a rd to th e p re vi o u s e d i ti o n a re a s fo l l o ws : – re d e fi n e th e m a xi m u m AC vo l ta g e fro m 0 V to 0 V, th e m a xi m u m D C vo l ta g e fro m V to 0 V; – re m o va l o f th e l i m i ta ti o n o f 0 kVA s ys te m s i ze H e n c e th e re m o va l o f th e wo rd “ s m a l l ” i n th e ti tl e a n d re l a te d re fe re n c e s i n th i s te c h n i ca l s p e c i fi c a ti o n T h i s te c h n i ca l s p e c i fi c a ti o n i s to b e u s e d i n c o n j u n cti o n wi th th e I E C 2 s e ri e s ( s p e ci fi c a l l y I E C T S 2 - to I E C T S 2 - ) T h e te x t o f th i s te ch n i ca l s p e c i fi ca ti o n i s b a s e d o n th e fo l l o wi n g d o c u m e n ts : E n q u i ry d ft Re p o rt o n vo t i n g /9 /D T S /1 0 A/RV C F u l l i n fo rm a ti o n o n th e vo ti n g fo r th e a p p ro va l o f th i s te c h n i ca l s p e ci fi ca ti o n ca n b e fo u n d i n th e re p o rt o n vo ti n g i n d i c a te d i n th e a b o ve ta b l e T h i s p u b l i c a ti o n h a s b e e n d fte d i n a cc o rd a n c e wi th th e I S O /I E C D i re cti ve s , P a rt A l i s t o f a l l p a rts i n th e I E C 2 s e ri e s , p u b l i s h e d u n d e r th e g e n e l ti tl e for renewable energy and hybrid systems for rural electrification , Recommendations c a n b e fo u n d o n th e I E C we b s i te F u tu re s ta n d a rd s i n th i s s e ri e s wi l l c a rry th e n e w g e n e l ti tl e a s c i te d a b o ve T i tl e s o f e x i s ti n g s ta n d a rd s i n th i s s e ri e s wi l l b e u p d a te d a t th e ti m e o f th e n e xt e d i ti o n T h e c o m m i tte e h a s d e ci d e d th a t th e c o n te n ts o f th i s p u b l i ca ti o n wi l l re m a i n u n ch a n g e d u n ti l th e s ta b i l i t y d a te i n d i c a te d on th e I EC we b s i te u n d er " h ttp : //we b s to re i e c c h " in th e d a ta re l a te d to th e s p e c i fi c p u b l i c a ti o n At th i s d a te , th e p u b l i ca ti o n wi l l b e • tra n s fo rm e d i n to a n I n te rn a ti o n a l s ta n d a rd , • re co n fi rm e d , • wi th d wn , • re p l a ce d b y a re vi s e d e d i ti o n , o r • am en d ed A b i l i n g u a l ve rs i o n o f th i s p u b l i c a ti o n m a y b e i s s u e d a t a l a te r d a te I M P O RT AN T th a t it – u n d e rs t a n d i n g c o l o u r p ri n t e r International Electrotechnical Commission Th e co n ta i n s of ' co l ou r c o l o u rs i ts i n si de' wh i ch c o n te n ts l og o a re U s e rs on th e cover c o n s i d e re d sh ou l d p ag e to t h e re fo re of th i s be p ri n t p u b l i cati on u s e fu l th i s fo r i n d i c a te s th e d ocu m e n t c o rre c t u si n g a I E C TS 62 57-5: 01  I EC 201 – – I N TRO D U C TI O N T h e I E C 2 s e ri e s i n te n d s to p ro vi d e to d i ffe re n t p l a ye rs i n vo l ve d i n p ro j e cts (su ch as p ro j e c t i m p l e m e n te rs , p ro j e ct co n tra cto rs , ru l e l e c tri fi ca ti o n p ro j e ct s u p e rvi s o rs , e tc ) d o c u m e n ts fo r th e s e tti n g u p o f re n e wa b l e e n e rg y a n d h yb ri d i n s ta l l e rs , s ys te m s wi th AC vo l ta g e b e l o w 0 V a n d D C vo l ta g e b e l o w 0 V T h e s e d o c u m e n ts a re re c o m m e n d a ti o n s : • to ch o o s e th e ri g h t s ys te m fo r th e ri g h t p l a ce ; • to d e s i g n th e s ys te m ; • to o p e te a n d m a i n ta i n th e s ys te m T h e s e d o c u m e n ts a re fo cu s e d o n l y o n ru l e l e c tri fi c a ti o n , c o n ce n tra ti n g o n , b u t n o t s p e c i fi c to d e ve l o p i n g co u n tri e s T h e y s h o u l d n o t b e c o n s i d e re d a s a l l i n c l u s i ve to ru l e l e ctri fi ca ti o n T h e d o cu m e n ts try to p ro m o te th e u s e o f re n e wa b l e e n e rg i e s i n ru l e l e ctri fi c a ti o n ; th e y d o n o t d e a l wi th c l e a n m e ch a n i s m s d e ve l o p m e n ts a t th i s ti m e ( C O e m i s s i o n , ca rb o n cre d i t, e tc ) F u rth e r d e ve l o p m e n ts i n th i s fi e l d co u l d b e i n tro d u ce d i n fu tu re s te p s Th is c o n s i s te n t set of d o c u m e n ts is best c o n s i d e re d as a wh o l e wi th d i ffe re n t p a rts co rre s p o n d i n g to i te m s fo r s a fe t y, s u s ta i n a b i l i t y o f s ys te m s a i m i n g a t th e l o we s t l i fe c yc l e co s t as poss i bl e O n e o f th e m a i n o b j e cti ve s i s to p ro vi d e th e m i n i m u m s u ffi ci e n t re q u i re m e n ts , re l e va n t to th e fi e l d o f a p p l i c a ti o n , th a t i s : re n e wa b l e e n e rg y a n d h yb ri d o ff- g ri d s ys te m s International Electrotechnical Commission – – I EC TS 62 57-5:  I EC 201 RE C O M M E N D ATI O N S FO R RE N E WAB LE E N E RG Y AN D H YBRI D S YS TE M S FO R RU RAL E LE C TRI FI C ATI ON – P art 5: P rotecti on ag n s t el ectri cal h azard s Scop e Th i s p a rt of eq u i pm en t s ys t e m s ru l e s I EC I EC s i tes wh i c h m eet basi c • • • • vi l l a g e • • • • • E l e c t ri fi c a t i o n of th es e s i te s p ro te c t i o n to S ys t e m s a l a rg e s e rvi c e s (publ ic s ys t e m s fa l l l i g h ti n g , bu i l d i n g s, ( w o rk s h o p s , i n to e l e c t r i fi c a t i o n th re e s ys te m s ( fo r exam pl e e l e c t r i fi c a t i o n s ys t e m s (CE S) or i n d i vi d u a l e l e c t ri c u s e r' s e n e rg y e l e c t ri fi c a t i o n g e n e ti o n e l e c tri c a l p ro t e c t i o n e l e c tri c s h ock of r u l a re p e rs o n s and e l e c t r i fi c a t i o n based on basic d esi g n ed s ys t e m , to or suppl y a e l e c tri c n a ti o n a l g ri d , p o we r in fo r o rd e r to e n e rg y d i s tri b u t i o n s ys t e m s , g e n e ti o n s u b s ys t e m , e l e c tri c a l c e n t e rs , p l a ce s of wo rs h i p or c u l t u l e tc ) fo r pu m pi n g ) , single fo r s ys t e m s fo r u s e rs , m u l ti p l e u s e rs e xc l u s i ve l y s i s t of two s u b s ys t e m s : s u b s ys t e m , i n s ta l l a ti o n e l e c t r i fi c a t i o n e l e c t ri c also i n s ta l l a ti o n s h o we v e r, si st of t h re e s u b s ys t e m s : s u b s ys t e m , ca l l e d m i c r o g ri d , i n cl u d i n g i n t e r fa c e eq u i pm en t b e twe e n th e i n s ta l l a ti o n s an d m i c ro g ri d g e n e l i d e n t i fi e d s p e c i fi c Th e th e c a t e g o ri e s : c o l l e c ti ve a re h e a l th m i c ro - i n d u s t r y , (I E S) Th e (D RE S ) pu m pi n g , s ys t e m s u s e r’ s fo r d e c e n tra l i s e d e tc ) , e l e c t r i fi c a t i o n a ag n st i n t e rc o n n e c t e d i n d i vi d u a l an in h ou ses, p ro c e s s th e appli ed d we l l i n g s , a cti vi ti e s an r e q u i re m e n t s be a re : e co n o m i c D RE wi th to 60364 co n n e cte d a d m i n i s tra t i v e th e a re not g e n e l n eeds com m u n i ty C o l l e cti ve • R u l I EC th e h a z a rd s deal in g an d a cti vi ti e s , P ro ce s s • 61 40 a re m a j o ri t y i s o l a te d Th e • s p e c i fi e s e l e c t ri c a l R e q u i re m e n ts fro m D e c e n tra l i z e d Th e 62257 agai nst re q u i re m e n ts c a t e g o ri e s s u b p a rt of of I EC s p e c i fi e d D RE S TS in th i s Ap p l i c a ti o n p a rt to of e a ch I EC 62257 s u b s ys t e m shou l d of a be appl i ed D RE S is to d ealt al l th e wi th i n a 62257-9 N orm ati ve referen ces fo l l o w i n g d o c u m e n ts , in d i spen sabl e International Electrotechnical Commission fo r i ts in wh o l e or a p p l i ca ti o n in p a rt , F or a re d a te d n o rm a t i v e l y re fe re n c e s , r e fe r e n c e d on l y th e in e d i ti o n th i s d o cu m e n t ci te d appl i es and F or – 34 – I E C TS 62 57-5: 01  I EC 201 An y e xte n s i o n o f th e s ys te m s h a l l b e ta ke n i n to a cco u n t wi th re g a rd to th e p ro p e r fu n cti o n i n g o f th e p ro te cti ve m e a s u re s IEC Ke y a) N o d i re c t c o n n e c ti o n fro m e i th e r t h e t n s fo rm e r o r th e g e n e t o r n e u t l p o i n t to e a rth i s p e rm i tt e d b) T h e i n te rc o n n e c t i o n c o n d u c to r b e t we e n e i th e r t h e n e u tra l p o i n t s o f t h e t n s fo rm e rs o r o f t h e g e n e to rs s h a l l b e i n s u l a t e d T h e fu n c t i o n o f t h i s c o n d u c to r i s l i ke a P E N ; h o we ve r, i t s h a l l n o t b e c o n n e c t e d t o c u rre n t - u s i n g e q u i p m e n t c) O n l y o n e c o n n e c t i o n b e t we e n t h e i n t e rc o n n e c te d n e u t l p o i n ts o f t h e s o u rc e s a n d th e p ro t e c ti ve c o n d u c t o r P E s h a l l b e p ro vi d e d T h i s c o n n e c t i o n s h a l l b e l o c a te d i n s i d e t h e m a i n s wi tc h g e a r a s s e m b l y d) Ad d i ti o n a l e a rt h i n g o f th e p ro t e c t i ve c o n d u c to r P E i n t h e e l e c t ri c a l i n s ta l l a ti o n m a y b e p ro vi d e d F i g u re B – T N - S m u l t i p l e s o u rc e s y s t e m co n d u ctor an d B AC n e u t l -p h a s e , - w i re w i t h c o n d u c t o r t o c u rre n t u s i n g s e p a t e p ro t e c t i v e eq u i pm en t T T s ys te m s T h e T T p o we r s ys te m h a s o n e l i ve p a rt d i re c tl y e a rth e d a t th e p o we r s o u rce T h e e x p o s e d co n d u cti ve - p a rts o f th e e l e c tri ca l i n s ta l l a ti o n a re co n n e c te d to e a rth e l e ctro d e s e l e c tri ca l l y i n d e p e n d e n t o f th e e a rth e l e c tro d e o f th e p o we r s o u rce ( s e e F i g u re s B 1 a n d B ) International Electrotechnical Commission I E C TS 62 57-5: 01  I EC 201 – 35 – IEC N O TE Ad d i ti o n a l e a rt h i n g o f t h e p ro te ct i ve co n d u cto r P E i n th e e l e ct ri ca l i n s ta l l a ti o n m a y b e p ro vi d e d F i g u re B 1 – T T s ys te m -p h a s e , - w i re w i t h e a rt h e d p ro t e c t i v e c o n d u c t o r t h ro u g h o u t t h e d i s t ri b u t i o n co n d u cto r a n d n e u t l s ys te m IEC N O TE Ad d i ti o n a l e a rt h i n g o f t h e p ro te ct i ve co n d u cto r P E i n th e e l e ct ri ca l i n s ta l l a ti o n m a y b e p ro vi d e d F i g u re B – T T s y s t e m d i s t ri b u t e d International Electrotechnical Commission -p h a s e , n e u t l - w i re w i t h e a rt h e d p ro t e c t i v e co n d u cto r a n d c o n d u c t o r t h ro u g h o u t t h e d i s t ri b u t i o n s ys t e m no – 36 – B I E C TS 62 57-5: 01  I EC 201 D C d i s tri b u ti o n s ys te m s B G e n e l T yp e o f s ys te m e a rth i n g fo r d i re ct cu rre n t ( d c ) d i s tri b u ti o n s ys te m s W h e re th e fo l l o wi n g F i g u re s B to B s h o w e a rth i n g o f a s p e c i fi c p o l e o f a two - wi re d c s ys te m , th e d e c i s i o n wh e th e r to e a rth th e p o s i ti ve o r th e n e g a ti ve p o l e s h a l l b e b a s e d u p o n o p e ti o n a l ci rcu m s ta n c e s or o th e r co n s i d e ti o n s , fo r exam pl e, a vo i d a n c e of c o rro s i o n e ffe cts o n l i n e co n d u c to rs a n d e a rth i n g a rra n g e m e n ts B T N -S -s ys te m T h e e a rth e d l i n e c o n d u cto r L E – i n th e s ys te m o f typ e a ) o r th e e a rth e d m i d - p o i n t c o n d u cto r M i n th e s ys te m o f t yp e b ) i s s e p a te d fro m th e p ro te cti ve co n d u c to r th ro u g h o u t th e e l e ctri c a l i n s ta l l a ti o n International Electrotechnical Commission I E C TS 62 57-5: 01  I EC 201 – 37 – T yp e a ) – -wi re IEC T yp e b ) – -wi re IEC N O TE Ad d i ti o n a l e a rt h i n g o f t h e p ro te ct i ve co n d u cto r P E i n th e e l e c tri ca l i n s t a l l a t i o n m a y b e p ro vi d e d F i g u re B – T N - S d c s ys t e m International Electrotechnical Commission – 38 – B I E C TS 62 57-5: 01  I EC 201 T N -C -s ys te m T h e fu n c ti o n s o f th e e a rth e d l i n e c o n d u cto r L E – a n d o f th e p ro te c ti ve c o n d u cto r i n th e s ys te m o f t yp e a ) a re c o m b i n e d i n o n e s i n g l e P E L c o n d u cto r th ro u g h o u t th e e l e ctri c a l i n s ta l l a ti o n , o r th e e a rth e d m i d - p o i n t c o n d u c to r M a n d th e p ro te cti ve co n d u c to r i n t h e s ys te m o f t yp e b ) a re co m b i n e d i n o n e s i n g l e P E M c o n d u cto r th ro u g h o u t th e e l e c tri c a l i n s ta l l a ti o n T N - C s ys te m i s n o t a l l o we d i n e l e c tri ca l i n s ta l l a ti o n s o f re s i d e n ti a l p re m i s e s , p u b l i c p re m i s e s , co m m e rci a l p re m i s e s , m e d i c a l l o ca ti o n s o r th e i r p a rts T yp e a ) – -wi re IEC T yp e b ) – -wi re IEC N O TE Ad d i ti o n a l e a rt h i n g of th e PEL c o n d u c to r or th e PEM c o n d u c to r p ro vi d e d F i g u re B – T N - C d c s ys t e m International Electrotechnical Commission in th e e l e c tri c a l i n s ta l l a t i o n m ay be I E C TS 62 57-5: 01 B 4  I EC 201 – 39 – T N -C -S - s ys te m T h e fu n c ti o n s o f th e e a rth e d l i n e c o n d u cto r L E – a n d o f th e p ro te c ti ve c o n d u cto r i n th e s ys te m o f t yp e a ) a re co m b i n e d i n o n e s i n g l e P E L c o n d u cto r i n a p a rt o f th e e l e c tri c a l i n s ta l l a ti o n , o r th e e a rth e d m i d - wi re c o n d u c to r M a n d th e p ro te cti ve co n d u c to r i n th e s ys te m o f t yp e b ) a re co m b i n e d i n o n e s i n g l e P E M c o n d u cto r i n a p a rt o f th e e l e c tri c a l i n s ta l l a ti o n Th e P E L c o n d u c to rs and PEM co n d u c to rs a re n o t a l l o we d in th e e l e c tri c a l i n s ta l l a ti o n s re s i d e n ti a l p re m i s e s , p u b l i c p re m i s e s , c o m m e rci a l p re m i s e s , m e d i ca l l o c a ti o n s T yp e a ) – -wi re IEC T yp e b ) – -wi re IEC N O TE Ad d i ti o n a l e a rt h i n g o f t h e p ro te c t i ve c o n d u c to r P E i n th e e l e c tri c a l i n s t a l l a t i o n m a y b e p ro vi d e d F i g u re B – T N - C - S d c s ys te m International Electrotechnical Commission of – 40 – B I E C TS 62 57-5: 01  I EC 201 T T -s ys te m O n e l i ve p a rt o f th e p o we r s o u rc e i s e a rth e d T h e e xp o s e d - co n d u cti ve - p a rts o f th e e l e ctri c a l i n s ta l l a ti o n a re e a rth e d b y co n n e cti o n to e a rth e l e c tro d e s e l e ctri ca l l y i n d e p e n d e n t fro m th e e a rth e l e c tro d e o f th e p o we r s o u rc e T yp e a ) – -wi re IEC T yp e b ) – -wi re IEC N O TE Ad d i ti o n a l e a rt h i n g o f t h e p ro te ct i ve co n d u cto r P E i n th e e l e c tri ca l i n s t a l l a t i o n m a y b e p ro vi d e d F i g u re B – T T d c s y s te m International Electrotechnical Commission I E C TS 62 57-5: 01  I EC 201 – 41 – An n e x C ( i n fo rm a ti ve ) C l a s s i fi c a ti o n o f e l e c tri ca l e q u i p m e n t C C l a s s i fi ca ti o n o f re s i d u a l cu rre n t d e vi ce s ( RC D s ) (see I EC 61 08, I EC 61 009, I EC 55 , I E C 47 -2 , I E C 42 ) Re s i d u a l C u rre n t D e vi ce s ( R C D s ) a re c l a s s i fi e d a cco rd i n g to a n u m b e r o f cri te ri a i n c l u d i n g th e fo l l o wi n g : a) C l a s s i fi c a ti o n a cco rd i n g to th e p re s e n c e o f i n te g l o ve r c u rre n t p ro te c ti o n • RC B O s : Re s i d u a l cu rre n t o p e te d ci rcu i t- b re a ke rs wi th i n te g l o ve r c u rre n t p ro te c ti o n • RC C B s : Res i d u a l cu rre n t o p e te d c i rc u i t - b re a ke rs wi th o u t i n te g l o ve r cu rre n t p ro te cti o n b) c) C l a s s i fi c a ti o n a cco rd i n g to th e m e th o d o f o p e ti o n • F u n cti o n a l l y i n d e p e n d e n t o f th e l i n e vo l ta g e • F u n cti o n a l l y d e p e n d e n t o f th e l i n e vo l ta g e – O p e n i n g a u to m a ti c a l l y i n ca s e o f fa i l u re o f th e l i n e vo l ta g e wi th o r wi th o u t d e l a y – N o t o p e n i n g a u to m a ti c a l l y i n ca s e o f fa i l u re o f th e l i n e vo l ta g e C l a s s i fi c a ti o n a cco rd i n g to th e t yp e o f i n s ta l l a ti o n • F o r fi x e d i n s ta l l a ti o n a n d fi xe d wi ri n g • F o r m o b i l e i n s ta l l a ti o n a n d c o rd e d c o n n e x i o n d) C l a s s i fi c a ti o n a cco rd i n g to th e n u m b e r o f p o l e s a n d c u rre n t p a th s e) C l a s s i fi c a ti o n a cco rd i n g to th e p o s s i b i l i t y o f a d j u s ti n g th e re s i d u a l o p e ti n g cu rre n t f) C l a s s i fi c a ti o n a cco rd i n g to th e re s i s ta n c e to u n wa n te d tri p p i n g d u e to vo l ta g e s u rg e s g) h) • G e n e l t yp e • T yp e S ( i n cre a s e d re s i s ta n c e to u n wa n te d tri p p i n g ) C l a s s i fi c a ti o n a cco rd i n g to ti m e - d e l a y • W i th o u t ti m e d e l a y • W i th ti m e d e l a y: t yp e S fo r s e l e c ti vi t y C l a s s i fi c a ti o n a cco rd i n g to b e h a vi o r i n p re s e n c e o f d c co m p o n e n ts DC co m p o n e n ts a re cau s e d by th e re c ti fi e r d e vi c e s n ow i n cre a s i n g l y fo rm i n g p a rt of e q u i p m e n t T h e s e d c c o m p o n e n ts m a y d i m i n i s h th e s e n s i ti vi t y o f ce rta i n d i ffe re n ti a l d e vi c e s o r e ve n co m p l e te l y i n h i b i t o p e ti o n b y s a tu ti n g th e i r m a g n e ti c c i rc u i ts F o r th i s re a s o n , fo u r typ e s o f d i ffe re n ti a l d e vi c e s – AC , A, F a n d B – h a ve b e e n a d o p te d b y th e re l e va n t s ta n d a rd s , a s fo l l o ws : 1) AC t yp e D e vi c e fo r wh i c h tri p p i n g i s e n s u re d fo r re s i d u a l s u d d e n l y a p p l i e d o r s l o wl y ri s i n g 2) A t yp e D e vi c e fo r wh i c h tri p p i n g i s e n s u re d fo r • re s i d u a l s i n u s o i d a l a l te rn a ti n g c u rre n t • re s i d u a l p u l s a ti n g d i re c t cu rre n t International Electrotechnical Commission sin usoid al a l te rn a ti n g c u rre n t, wh e th e r – 42 – • fo r re s i d u a l p u l s a ti n g d i re ct c u rre n ts I E C TS 62 57-5: 01 s u p e ri m p o s e d by a s m o o th  d i re ct I EC 201 cu rre n t of , 0 A, wi th o r wi th o u t p h a s e - a n g l e co n tro l , i n d e p e n d e n t o f p o l a ri t y, wh e th e r s u d d e n l y a p p l i e d o r s l o wl y ri s i n g 3) F t yp e Re s i d u a l cu rre n t d e vi c e fo r wh i ch tri p p i n g is e n s u re d as fo r T yp e A a cc o rd i n g to I E C 0 - o r I E C 0 - , a s a p p l i c a b l e , a n d i n a d d i ti o n , • fo r co m p o s i te re s i d u a l c u rre n ts , wh e th e r s u d d e n l y a p p l i e d o r s l o wl y ri s i n g i n te n d e d fo r ci rc u i t s u p p l i e d b e twe e n p h a s e a n d n e u tra l o r p h a s e a n d e a rth e d m i d d l e c o n d u c to r; • an d fo r re s i d u a l p u l s a ti n g d i re ct cu rre n ts s u p e ri m p o s e d on s m o o th d i re ct c u rre n t o f , A 4) B t yp e Re s i d u a l c u rre n t d e vi c e fo r wh i c h tri p p i n g i s e n s u re d a s fo r T yp e F a n d i n a d d i ti o n , • • fo r re s i d u a l s i n u s o i d a l a l te rn a ti n g c u rre n ts u p to 0 H z; fo r re s i d u a l a l te rn a ti n g c u rre n ts s u p e ri m p o s e d o n a s m o o th d i re c t c u rre n t o f , ti m e s th e te d re s i d u a l c u rre n t ( I ∆n ) ; • fo r re s i d u a l p u l s a ti n g d i re ct c u rre n ts s u p e ri m p o s e d o n a s m o o th d i re c t c u rre n t o f , ti m e s th e te d re s i d u a l c u rre n t ( I ∆n ) • • • • C o r m A, wh i ch e ve r i s th e h i g h e s t va l u e ; fo r re s i d u a l d i re c t c u rre n ts wh i ch m a y re s u l t fro m re cti fyi n g c i rc u i ts , i e ; two - p u l s e b ri d g e c o n n e c ti o n l i n e to l i n e fo r - , - a n d - p o l e d e vi c e s ; th re e - p u l s e s ta r c o n n e cti o n o r s i x- p u l s e b ri d g e co n n e c ti o n fo r - a n d - p o l e d e vi c e s ; fo r re s i d u a l s m o o th d i re ct cu rre n ts C l a s s i fi ca ti o n o f ci rc u i t b re a ke rs fo r a c o p e ti o n (see I EC -1 , I E C 47 -2 ) C i rc u i t b re a ke rs fo r o ve rc u rre n t p ro te cti o n a re c l a s s i fi e d a cco rd i n g to a n u m b e r o f cri te ri a i n cl u d i n g th e fo l l o wi n g : a) C l a s s i fi c a ti o n a cco rd i n g to th e n u m b e r o f p o l e s b) C l a s s i fi c a ti o n a cco rd i n g to th e i n s ta n ta n e o u s tri p p i n g c u rre n t • • I n s ta n ta n e o u s tri p p i n g c u rre n t M i n i m u m va l u e o f cu rre n t c a u s i n g th e c i rc u i t- b re a ke r to o p e te a u to m a ti c a l l y wi th o u t i n te n ti o n a l ti m e - d e l a y c) C l a s s i fi c a ti o n a cco rd i n g to th e Th e I2 t ch a cte ri s ti c is th e I2 t cu rve c h a c te ri s ti c g i vi n g th e m a xi m u m va l u e of I2 t as a fu n c ti o n of p ro s p e cti ve c u rre n t u n d e r s ta te d c o n d i ti o n s o f o p e ti o n S ta n d a rd ti n g s : • • • • Ra te d s h o rt- ci rcu i t c a p a c i t y Ra te d cu rre n t Ra te d o p e ti o n a l vo l ta g e Ra n g e s o f i n s ta n ta n e o u s tri p p i n g S ta n d a rd n g e s o f i n s ta n ta n e o u s tri p p i n g cu rre n t a re g i ve n h e re u n d e r ( s e e I E C - ) : • • In B t yp e : a b o ve In u p to a n d i n c l u d i n g C t yp e : a b o ve In u p to a n d i n c l u d i n g International Electrotechnical Commission In th e I E C TS 62 57-5: 01 • D t yp e : a b o ve C  In I EC 201 – 43 – u p to a n d i n cl u d i n g In C l a s s i fi ca ti o n o f s u rg e p ro te cti ve d e vi c e s ( s e e I E C 6 43 -1 ) S u rg e P ro te c ti ve D e vi c e s ( S P D s ) a re c l a s s i fi e d a c co rd i n g to a n u m b e r o f cri te ri a i n c l u d i n g th e fo l l o wi n g : a) b) c) C l a s s i fi c a ti o n a cco rd i n g to n u m b e r o f p o rts • o n e - p o rt S P D : S P D co n n e cte d i n s h u n t wi th th e c i rcu i t to b e p ro te cte d • two - p o rt S P D : S P D wi th two s e ts o f te rm i n a l , i n p u t a n d o u u t C l a s s i fi c a ti o n a cco rd i n g to d e s i g n to p o l o g y • vo l ta g e s wi tc h i n g t yp e S P D : s p a rk g a p s , g a s tu b e s , th yri s to rs a n d tri a cs • vo l ta g e l i m i ti n g t yp e S P D : va ri s to rs a n d s u p p re s s o r d i o d e s C l a s s i fi c a ti o n a cco rd i n g to te s t c l a s s • C l a s s I te s t i s i n te n d e d to s i m u l a te p a rti a l co n d u c te d l i g h tn i n g c u rre n t i m p u l s e s S P D s s u b j e cte d to C l a s s I te s t m e th o d s a re g e n e l l y re co m m e n d e d fo r l o c a ti o n s a t p o i n ts o f h i g h e x p o s u re , e g l i n e e n tra n ce s to b u i l d i n g s p ro te cte d b y L P S • S P D s te s te d to c l a s s I I o r I I I te s t m e th o d s a re s u b j e cte d to i m p u l s e s o f s h o rte r d u ti o n T h e s e S P D s a re g e n e l l y re c o m m e n d e d fo r l o ca ti o n s wi th l e s s e r e x p o s u re d) e) C l a s s i fi c a ti o n a cco rd i n g to l o ca ti o n a n d a cce s s i b i l i ty • i n d o o r o r o u td o o r • a cce s s i b l e o r o u t- o f- re a c h C l a s s i fi c a ti o n a cco rd i n g to d i s co n n e c to r l o ca ti o n a n d fu n cti o n A S P D d i s c o n n e c to r i s a d e vi c e fo r d i s c o n n e cti n g a n S P D fro m th e s ys te m i n th e e ve n t o f S P D fa i l u re I t i s to p re ve n t a p e rs i s te n t fa u l t o n th e s ys te m a n d to g i ve vi s i b l e i n d i ca ti o n o f th e S P D fa i l u re f) C l a s s i fi c a ti o n a cco rd i n g to te m p e tu re n g e • g) N o rm a l o r e xte n d e d S ta n d a rd ti n g s • I m pu l se c u rre n t (cl ass I te s ts ) /N o m i n a l d i s ch a rg e cu rre n t ci rc u i t vo l ta g e ( c l a s s I I I te s ts ) • Vo l ta g e p ro te c ti o n l e ve l s • r m s o r d c m a xi m u m co n ti n u o u s o p e ti n g vo l ta g e International Electrotechnical Commission ( fo r c l a s s II te s ts ) / O pen – 44 – I E C TS 62 57-5: 01  I EC 201 An n e x D ( i n fo rm a ti ve ) G e n e l i n fo rm a ti o n D c o n c e rn i n g p ro te c t i o n a g a i n s t l i g h t n i n g G e n e l L i g h tn i n g a cts i n d i ffe re n t wa ys , d e p e n d i n g o n wh e th e r th e s tru c tu re i s s tru ck d i re ctl y o r n o t ( s e e F i g u re D ) • d i re c t s tro ke s i n fl i c ti n g m e ch a n i c a l d a m a g e a n d a t th e s a m e ti m e g e n e ti n g a n i n cre a s e i n p o te n ti a l a l o n g th e s tru ctu re s h i t a n d a ro u n d th e p o i n t o f i m p a ct, • i n d i re ct s tro ke s , s o u rc e of o ve r vo l ta g e s th a t may re s u l t in re m o t e d e s tru cti o n vi a a n u m b e r o f d i ffe re n t p ro p a g a ti o n ch a n n e l s ( a i r, s o i l , co n d u c to rs , e tc ) (b) Li g h tn i n g d u ctor (1 ) Fi rst pol e of th e m i crog ri d wi re (2) Each pol e l ocated 200 m after th e previ ou s (3) (a) Last pol e of th e m icrog ri d (d ) (c) Li g h tn i n g rod (1 ) (2) (3) I n stal l ati on E q u i pm en t si te IEC E arth i n g el ectrod es Ke y (a) L i g h t n i n g s tro ke o n wi n d g e n e to r (b) L i g h t n i n g s t ro ke o n a p h o t o vo l ta i c p a n e l (c) D i re c t s tro k e o n a s t ru c tu re (d ) E l e c t ro m a g n e t i c c o u p l i n g b e t w e e n t h e l i g h t n i n g c u rre n t a n d t h e d i s t ri b u t i o n l i n e a n d /o r th e i n s ta l l a t i o n c a b l i n g s ys t e m F i g u re D N O TE – E x a m p l e o f e ffe c t s o f a l i g h t n i n g s t ro k e T h e e l e c tro m a g n e t i c c o u p l i n g c a n b e c o n d u c ti ve o r i n d u c ti v e C o n d u c ti v e c o u p l i n g : t h e l i g h t n i n g s t ri k e s th e s o i l n e a r a n i n s ta l l a t i o n a n d p a rt o f th e l i g h t n i n g c u rre n t i s i n j e c t e d i n to t h e s ys t e m t h ro u g h i ts e a rt h e l e c t ro d e s International Electrotechnical Commission I E C TS 62 57-5: 01  I EC 201 – 45 – I n d u c ti v e c o u p l i n g : t h e l i g h t n i n g s tri ke s t h e s o i l n e a r t h e i n s ta l l a ti o n a n d g e n e t e s o v e r vo l ta g e s i n th e s ys t e m b y m a g n e ti c i n d u c t i o n F o r e a c h o f th e p ro p a g a ti o n m o d e s , a c o m b i n a t i o n o f p ro t e c t i ve m e a s u re s i s to b e a p p l i e d ( s u i t a b l y a d a p t e d m e a n s a n d ru l e s ) t o l i m i t th e d i re c t a n d i n d i re c t e ffe c t s o f l i g h t n i n g t o l e ve l s fo r th e s a fe t y o f p e rs o n s , th e p ro te c ti o n a n d th e o p e t i o n o f e q u i p m e n t G e n e l b a s i c i n fo rm a ti o n re g a rd i n g s u rg e o ve r vo l ta g e s a n d s u rg e p ro te c ti o n i n l o w vo l ta g e a c p o we r s ys te m s i s g i ve n i n I E C 6 G e n e l p ri n c i p l e s fo r th e p ro te cti o n o f s tru ctu re s a g a i n s t l i g h tn i n g a re g i ve n i n th e I E C s e ri e s D P ro t e c t i o n a g a i n s t l i g h t n i n g – P ri n c i p l e s I n s ta l l i n g a l i g h tn i n g p ro te cti o n s ys te m o n a b u i l d i n g ( L P S ) u s u a l l y re s u l ts i n i m p l e m e n ti n g : • • An e xte rn a l l i g h tn i n g p ro te cti o n s ys te m ( E L P S ) S u rg e p ro te cti ve d e vi c e s Th ese d e vi c e s a re l o ca te d a t th e d i ffe re n t l i n ks b e twe e n th e s tru c tu re s a n d th e i r e n vi ro n m e n t: m a i n l y th e p o we r n e two rks a n d d a ta tra n s m i s s i o n ca b l e s • A u n i q u e e a rth i n g a rra n g e m e n t T h i s i s n e c e s s a ry to l i m i t th e p o te n ti a l d i ffe re n c e s a t a n y p o i n t o n a s i te , – a n d a ch i e ve d b y: i n te rco n n e cti n g th e e a rth te rm i n a ti o n o f th e e l p s to th e e a rth i n g a rra n g e m e n t wi th s h o rt co n n e x i o n s ; – – b o n d i n g o f m e ta l e n c l o s u re s a n d s cre e n i n g ; m e ta l p i p e s a n d c a b l e s s h o u l d e n te r th e b u i l d i n g s a t th e s a m e p l a c e m e ta l s h e e ts , s cre e n s , m e ta l p i p e s a n d co n n e c ti o n s o f th e s e p a rts s h o u l d b e b o n d e d a n d c o n n e cte d to th e e a rth i n g a rra n g e m e n t wi th l o w i m p e d a n c e c o n d u cto rs ; – co n n e cti n g a l l th e m e ta l e l e m e n ts o f th e s tru ctu re to th e e a rth i n g a rra n g e m e n t International Electrotechnical Commission – 46 – I E C TS 62 57-5: 01  I EC 201 B i b l i o g p h y I EC 60050-82 6: 2004, International Electrotechnical Vocabulary (IEV) – Part 826: Electrical installations Low-voltage electrical installations – Part : Fundamental principles, assessment of general characteristics, definitions I E C 603 64-1 : 200 5, Insulation coordination for equipment within low voltage systems – Part : Principles, requirements and tests I EC 60664-1 : 2007, I E C TR 60 755, General requirements for residual current operated protective devices Electrical accessories – Circuit-breakers for overcurrent protection household and similar installations – Part : Circuit-breakers for a c operation I EC 60898-1 , I EC 60947-2: 2006, for Low-voltage switchgear and controlgear – Part 2: Circuit-breakers I E C - : 0 /AM D : 0 I E C - : 0 /AM D : I E C 0 - : , Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCBs) – Part : General rules I E C 0 - : /AM D : 2 I E C 0 - : /AM D : Residual current operated circuit-breakers with integral protection for household and similar uses (RCBOs) – Part : General rules I EC 61 009-1 : 201 0, overcurrent I E C 0 - : /AM D : 2 I E C 0 - : /AM D : I EC 61 439-1 , Low-voltage switchgear and controlgear assemblies – Part : General rules I E C 6 - 1 , Low-voltage surge protective devices – Part : Surge protective devices connected to low-voltage power systems – Requirements and tests methods Low-voltage surge protective devices – Part 2: Surge protective devices connected to low-voltage power distribution systems – Selection and application principles I EC 61 643-1 2, I E C T R 6 , Surge overvoltages and surge protection in low-voltage a c power systems – General basic information I EC 622 57-9, Recommendations for renewable electrification – Part 9: Integrated systems I E C ( a l l p a rts ) : energy and hybrid systems for rural Protection against lightning Type F and type B residual current operated circuit-breakers with and without integral overcurrent protection for household and similar uses I EC 62423, _ International Electrotechnical Commission International Electrotechnical Commission INTERNATIONAL ELECTROTECHNICAL COMMISSION 3, rue de Varembé PO Box 31 CH-1 21 Geneva 20 Switzerland Tel: + 41 22 91 02 1 Fax: + 41 22 91 03 00 info@iec.ch www.iec.ch International Electrotechnical Commission