IEC TR 6271 0 Edition 1 0 201 5 05 TECHNICAL REPORT Residual current devices (RCDs) associated with additional function(s) IE C T R 6 2 7 1 0 2 0 1 5 0 5 (e n ) ® Copyright International Electrotechni[.]
Trang 2THIS PUBLICATION IS COPYRIGHT PROTECTED
Copyr ight © 2 15 IEC, Ge e a, Switzer la d
Al rig ts r es r ve Unle s oth rwis s e ifi d, n p rt of this p blc tio ma b r epr od c d or uti z d in a y form
or b a y me n , ele tr onic or me h nic l in lu in p oto o yin a d microfim, with ut p rmis io in wr itin from
eith r IEC or IEC's memb r Natio al Commite in th c u tr y of th re u ste If y u h v a y q e tio s a o t IEC
c p r i ht or h v a e q ir y a o t o tainin a ditio al ri hts to this p blc tio , ple s c nta t th a dr es b low or
y ur lo al IEC memb r Natio al Commite for ur th r informatio
Th Intern tio al Ele trote h ic l Commis io (IEC) is th le din glo al org niz tio th t pr ep res a d p bls e
Internatio al Sta d r ds for al ele tri al ele tr onic a d relate te h olo ie
Abo t IEC p blc tio s
Th te h ic l c nte t of IEC p blc tio s is k pt u d r c n ta t r eview b th IEC Ple s ma e s re th t y u h v th
late t e itio ,a c rr ig n a or a ame dme t mig t h v b e p bls e
IEC Cat alo ue - webst ore.e ch/ cat alo ue
Th st an -alo e a plc t io for c n ultin th e tire
biblo ra hic l informat io o IEC Intern tio al Sta d rd ,
Te h ic l Sp cific tio s, Te h ic l R ep rts a d oth r
d c me ts A v aia le for P , Ma OS, A ndroid Ta let s a d
iPa
IEC p blc t i ns s arch - www ie ch/ se rch u
Th a v an e s arc e a le t o fin IEC p blc t io s b a
variety of crit eria (efere c n mb r, t ext, t ec nic l
c mmitt e,…) It als gives informatio o projec t s, re la e
a d wit hdrawn p blc tio s
IEC Just P blshed - webst ore.e ch/ just pu lshed
St ay u to d te o al n w IEC p blc tio s Ju t Pu ls e
d t ais al n w p blc t io s rele s d A v aia le o ln a d
als o c a mo t h b emai
Ele t ro edia - www ele t ro edia.org
Th world's le din o ln dic t io ary of elec t ro ic a d
ele t ric l t erms c ntainin more t ha 3 0 0 terms a d
d finitio s in En ls a d Fre c , wit h e uiv ale t t erms in 15
a ditio al la g a e Als k nown a t he Int ern t io al
Elec t rot ec nic l Vo a ulary (IEV ) o ln
IEC Glos ar y - st d.e ch/ glos ary
More t ha 6 0 0 ele t rot ec nic l termin lo y e t rie in
En ls a d Fre c e tra t ed fom t he Terms a d Definitio s
cla s of IEC p blc t io s is u d sin e 2 0 Some e t rie
h v e b e c le t ed fom e rler p blc tio s of IEC TC 3 ,
7 ,8 a d CISPR
IEC Cust omer Servic Cent re - webst ore.ec ch/ csc
If y ou wis to giv e u your fe d a k o t his p blc tio or
n e furt her a sista c , ple s c nta t t he Cu tomer Serv ic
Ce t re:c c@ie c
Trang 4CONTENTS
FOREWORD 4
INTRODUCTION 6
1 Sco e 7
2 Normative ref eren es 7
3 Terms an definition 8
4 Clas if i ation ac ordin to the as ociation of a RCD with ad itional fu ction(s) 9
4.1 General 9
4.2 Ac ordin to the typ of con tru tion 9
4.3 Ac ordin to the interace b twe n a RCD an ad itional f un tion(s) 9
5 Characteristic 10 6 Markin an other prod ct inf ormation 10 6.1 In tru tion an o eration f or RCDs with integrated ad itional f un tion(s) ac ordin to 4.2 a) 1
0 6.2 In tru tion an o eration f or a non integrated ad itional f un tion ac ordin to 4.2 b) 10 7 Stan ard con ition for o eration in service an f or in tal ation 10 8 Req irements for con tru tion an o eration 1
8.1 General 1
8.2 Mec anical req irements 12 8.3 Electrical comp tibi ty 12 8.4 Protection again t electric s oc 12 8.5 Dielectric pro erties, isolatin ca a i ty an in ulation co rdination 12 8.6 Cle ran es an cre p ge distan es 13 8.7 Screws, c r ent-car yin p rts an con ection 13 8.8 Terminals for external con u tors 13 8.9 Temp rature rise 13 8.1 0 Mec anical an electrical en uran e 1
3
8.1 Perf orman e at s ort-circ it c r ents 13
8.12 Resistan e to mec anical s oc an imp ct 14
8.13 Resistan e to he t, to a normal temp rature an to fire 14
8.14 Test device 14
8.15 Behaviour of RCDs in the case of overc r ents in the main circ it 14
8.16 Behaviour of RCDs in the case of c r ent s rges cau ed by impulse voltages 14
8.17 Behaviour of RCDs in the case of sin soidal resid al c r ents an in case of
resid al c r ents comprisin a d.c comp nent 14
8.18 Rel a i ty 15
8.19 Electromag etic comp tibi ty (EMC) 15
8.2 Op ratin c aracteristic 15
8.2 1 Op ratin c aracteristic of the RCD 15
8.2 2 Influen e of the ad itional fu ction(s) on the p rorman e of the RCD
with diff erent con ition of s p ly voltage 15
9 Tests 16
9.1 General 16
9.2 The ad itional fu ction is integrated within the RCD ac ordin to 4.2 a) 16
9.3 The ad itional fu ction is not integrated within a declared RCD ac ordin to
4.2 ) whose compl an e to the relevant RCD stan ard is not yet tested 17
Trang 59.4 The ad itional fu ction is not integrated within a declared RCD ac ordin to
4.3 whose compl an e to the relevant RCD stan ard is alre d tested 17
9.5 Testin proced re 17
9.5.1 General 17
9.5.2 Imp irment identif i ation 2
9.5.3 Imp irment as es ment 21
9.5.4 Verification of the influen e of the ad itional f un tion(s) on the p r orman e of the RCD at diff erent states of s p ly voltage 2
9.6 Doc mentation 2
An ex A (informative) Ad itional req irements an tests for RCDs con istin of a RCD an a non integrated ad itional f un tion u it desig ed for as embly on site 2
A.1 General 2
A.2 Sco e 2
A.3 Terms an definition 2
A.4 Markin an other prod ct information 2
A.4.1 Man facturer's name or trademark 2
A.4.2 Markin 2
A.4.3 In tru tion f or as embly an o eration 2
A.5 Con tru tional req irements 2
A.5.1 General 2
A.5.2 Degre of protection 2
A.5.3 Mec anical req irements 2
A.5.4 Electrical comp tibi ty 2
A.6 Typ tests an verification 2
A.6.1 Tests on RCDs 2
A.6.2 Tests on non integrated ad itional f un tion u it to b as embled on site 2
A.6.3 Tests on as embled RCDs an non integrated ad itional f un tion u it 2
A.6.4 Verification of markin an con tru tional req irements 2
Bibl ogra h 2
Ta le 1 – List of b sic tests to b con idered, ac ordin to the interace b twe n
RCDs an ad itional f un tion(s), d rin the as es ment 18
Trang 6INTERNATIONAL ELECTROTECHNICAL COMMISSION
_
WITH A DDITIONA L FUNCTION(S)
1 Th Intern tio al Ele trote h ic l Commis io (IEC) is a worldwid org niz tio for sta d rdiz tio c mprisin
al n tio al ele trote h ic l c mmite s (IEC Natio al Commite s) Th o je t of IEC is to promote
intern tio al c -o eratio o al q e tio s c n ernin sta d rdiz tio in th ele tric l a d ele tro ic field To
this e d a d in a ditio to oth r a tivitie , IEC p bls e Intern tio al Sta d rd , Te h ic l Sp cific tio s,
Te h ic l Re orts, Pu lcly Av ia le Sp cif i atio s (P S) a d Guid s (h re f ter refere to a “IEC
Pu lc tio (s)”) Th ir pre aratio is e tru te to te h ic l c mmite s; a y IEC Natio al Commite intere te
in th s bje t d alt with ma p rticip te in this pre aratory work Intern tio al g v rnme tal a d n n
-g v rnme tal org niz tio s laisin with th IEC als p rticip te in this pre aratio IEC c la orate clo ely
with th Intern tio al Org niz tio f or Sta d rdiz tio (ISO) in a c rd n e with c n itio s d termin d b
a re me t b twe n th two org niz tio s
2) Th formal d cisio s or a re me ts of IEC o te h ic l maters e pre s, a n arly a p s ible, a intern tio al
c n e s s of o inio o th rele a t s bje ts sin e e c te h ic l c mmite h s re re e tatio fom al
intere te IEC Natio al Commite s
3) IEC Pu lc tio s h v th f orm of re omme d tio s for intern tio al u e a d are a c pte b IEC Natio al
Commite s in th t s n e Whie al re s n ble eff orts are ma e to e s re th t th te h ic l c nte t of IEC
Pu lc tio s is a c rate, IEC c n ot b h ld re p n ible f or th wa in whic th y are u e or f or a y
misinterpretatio b a y e d u er
4) In ord r to promote intern tio al u if ormity, IEC Natio al Commite s u d rta e to a ply IEC Pu lc tio s
tra s are tly to th ma imum e te t p s ible in th ir n tio al a d re io al p blc tio s An div rg n e
b twe n a y IEC Pu lc tio a d th c re p n in n tio al or re io al p blc tio s al b cle rly in ic te in
th later
5) IEC its lf d e n t pro id a y ate tatio of c nformity In e e d nt c rtific tio b die pro id c nformity
a s s me t s rvic s a d, in s me are s, a c s to IEC mark of c nformity IEC is n t re p n ible for a y
s rvic s c rie o t b in e e d nt c rtific tio b die
6) Al u ers s o ld e s re th t th y h v th late t e itio of this p blc tio
7) No la i ty s al ata h to IEC or its dire tors, emplo e s, s rv nts or a e ts in lu in in ivid al e p rts a d
memb rs of its te h ic l c mmite s a d IEC Natio al Commite s for a y p rs n l injury, pro erty d ma e or
oth r d ma e of a y n ture wh ts e er, wh th r dire t or in ire t, or f or c sts (in lu in le al fe s) a d
e p n e arisin o t of th p blc tio , u e of, or rela c u o , this IEC Pu lc tio or a y oth r IEC
The main tas of IEC tec nical commit e s is to pre are International Stan ard However, a
tec nical commite may pro ose the publ cation of a tec nical re ort when it has col ected
data of a diff erent kin fom that whic is normal y publs ed as an International Stan ard, for
example "state of the art"
IEC TR 6 710, whic is a Tec nical Re ort, has b en pre ared by s bcommite 2 E: Circ i
t-bre kers an simiar eq ipment f or hou ehold u e, of IEC tec nical commite 2 : Electrical
ac es ories
The text of this stan ard is b sed on the fol owin doc ments:
En uiry draft Re ort o v tin
Ful information on the votin for the a proval of this tec nical re ort can b f ou d in the
re ort on votin in icated in the a ove ta le
Trang 7This publcation has b en draf ted in ac ordan e with the ISO/IEC Directives, Part 2.
In this Tec nical Re ort, the fol owin print typ s are u ed:
– compl an e statements: in ita c type
The commit e has decided that the contents of this publ cation wi remain u c an ed u ti
the sta i ty date in icated on the IEC we site u der "ht p:/we store.iec.c " in the data
related to the sp cific publ cation At this date, the publ cation wi b
Trang 8This Tec nical Re ort (TR) introd ces information al owin man f acturers to introdu e
ad itional fu ction(s) as ociated with Resid al c r ent devices (RCD) This TR is also
relevant for tec nical commite s in c arge of draftin an International Stan ard f or ad itional
f un tion(s); for this purp se, req irements an tests have b en introd ced It would also b of
b nef it to la oratories havin diff i ulties in testin RCDs as ociated with an ad itional
f un tion This TR do s not cover the ad itional f un tion(s) itself ( his is the purp se of an
International Stan ard coverin the additional fu ction(s) , nor the RCD fu ction an
c aracteristic ( his is the purp se of an RCD International Stan ard) It is l mited to c ec in
that the additional f un tion(s) do not imp ir an f un tion of the RCD in case there is no
International Stan ard f or the ad itional f un tion(s) for hou ehold an simiar u es Where
there is a relevant International Stan ard for hou ehold an simi ar u es f or the ad itional
f un tion(s), then it is u ed This me n that the as embly of the RCD plu the ad itional
f un tion(s) b have cor ectly ac ordin to the refer ed stan ard
This Tec nical Re ort is drafted ac ordin to the fol owin b sic prin iples:
– In order not to restrict in ovation, it is draf ted in e en ently of the ad itional fu ction(s)
an is th s a pl ca le whatever the ad itional f un tion(s) are
NOT It is n t p s ible to lst al p s ible e istin a d future a ditio al f un tio (s); s me e ample are giv n
within th d finitio s
– The verification is only lmited to the as embly an as ociation of an RCD with one or
several ad itional f un tion(s), b in integrated or not
– The verification aims to s ow that the as embly of one or several ad itional fu ction(s)
declared s ita le to a sp cific protective device is safe an do s not imp ir the b sic
c aracteristic of the RCD
– Resp n ibi ty for the as embly me n that the ad itional fu ction(s) an the RCD are
inten ed to b fom the same man facturer or to b aff i ed with the same trademark As a
con eq en e, it is inten ed that the man f acturer or trademark owner declare with whic
protective devices the ad itional f un tion(s) can b as ociated
Trang 9RESIDUA L CURRENT DEVICES (RCDs) ASSOCIA TED
WITH A DDITIONA L FUNCTION(S)
This Tec nical Re ort (TR) provides information con ernin the p s ible u e o
– dedicated ad itional fu ction(s) declared by a man facturer as s ita le for an as embly
with declared RCDs complyin with IEC stan ard f or hou ehold an simi ar u es;
– sp cific RCDs complyin with IEC stan ard f or hou ehold an simi ar u es havin
integrated ad itional f un tion(s)
NOT 1 Th term RCD is a g n ric term a ple to a famiy of pro u ts whic o e a tomatic ly in re p n e to a
re id al c re t at or e c e in th RCD’s rate re id al o eratin c re t I
n This g n ric term is ofte a ple
to th f olowin :
– RC B: Re id al c re t o erate circ it-bre k r with ut inte ral o erc re t prote tio ;
– RCBO: Re id al c re t o erate circ it-bre k r with inte ral o erc re t prote tio ;
– SRC : Re id alc r e t d vic with or with ut o erc re t prote tio f or s c et-o tlets;
– PRC : Porta le re id al c re t d vic with ut inte ral o erc re t prote tio
This TR identifies the a plca le testin proced re to determine the eff ect on the normal
f un tionin of sp cif i RCD(s) declared s ita le with one or more ad itional fu ction(s)
integrated into or ad ed to or as embled with this sp cific RCD
This TR may also b u ed to draf t ad itional req irements to stan ard for ad itional
f un tion(s) inten ed to b combined with RCDs for hou ehold an simiar a pl cation
This TR provides a proced re b sed on an as es ment in order to identify the neces ary
testin to demon trate compl an e with the a pro riate req irements If the as es ment of the
ad itional fu ction integrated in the RCDs con lu es that the ad itional f un tion do s not
imp ir the RCD, no ad itional test is req ired by this TR
Where more than one ad itional f un tion(s) can b simultane u ly as ociated with one or
several RCD(s), the p s ible combination is c ec ed by con iderin the most severe ones
This TR do s not a ply:
– to ad itional f un tion covered by a stan ard whic expl citly ad res es the combination
with RCDs for hou ehold an simi ar a pl cation ;
NOT 2 Ex mple of a a ditio al d vic with in e e d nt pro u t sta d rd is a xi ary c nta ts a c rdin to
IEC 6 019
– to ad itional fu ction(s) as ociated with RCDs for con ection purp ses;
NOT 3 Ex mple of a ditio al f un tio (s) f or c n e tio p rp s s are c n e tio d vic s b twe n RCBOs
a d a circ it bre k rs
– to loc in devices
The folowin doc ments, in whole or in p rt, are normatively ref eren ed in this doc ment an
are in isp n a le f or its a pl cation For dated ref eren es, only the edition cited a pl es For
u dated referen es, the latest edition of the referen ed doc ment (in lu in an
amen ments) a pl es
Trang 10IEC TR 6 7 5, Ge eral re uireme ts for residu l c re t o erated protect ive d evic s
IEC 6 8 8 (al p rts), Electric l a c s ories – Circ it-bre k ers for overc r e t protect ion for
h use old a d simil ar instal l ations
IEC 610 8 (al p rts), Resid ual c re t o erat ed circ it-bre k ers witho t int egral o erc r e t
protection for h use old a d similar uses (RCCBs)
IEC 610 9 (al p rts), Resid ual c re t o erated circ it -bre k rs wit h int egral o erc r e t
prot ection for h use ol d a d simil ar uses (RCBOs)
IEC 6 4 3, Type F a d ty e B resid ual c re t o erated circ it -bre k ers wit h a d wit ho t
integral overc r e t protection for h use ol d a d simil ar uses
f eature, action, ca a i ty, or the lke integrated or as embled with a declared RCD, an not
req ired by the b sic prod ct stan ard
Note 1 to e try: Th a ditio al f un tio (s) c n h v a me h nic l a d/or ele tric l intera e with o e or more
p rts of th RC
Note 2 to e try: Ex mple of a ditio al f un tio (s) are: a tomatic re lo in d vic s, prote tio a ain t to hig or
to low v lta e, remote-c ntrole me h nism, remote-c ntrole trip in , telemo itorin , u d rv lta e rele s ,
s u t rele s , re id al c re t in ic tor, lfetime mo itorin , in talatio mo itorin , th rmal mo itorin , s lf
mo itorin a d te t, d ta c mmu ic tio , smo e d te tor a wel a a y c mbin tio s of th s d vic s, etc
external ad itional fu ction s c as a mod le whic can s bseq ently b bui t-in on site or
can b ad ed on by the man facturer
Note 1 to e try: Th a ditio al f un tio (s) ma in u n e th RCD via intera e
Note 2 to e try: After a s mbly of th e tern l a ditio al f un tio (s) with th RC , th d vic b c me a
c n tru tio al u it
3.2
RCD
re idual c r e t de ic
mec anical switc in device desig ed to make, car y an bre k c r ents u der normal
service con ition an to cau e the o enin of the contacts when the resid al c r ent atain
a given value u der sp cified con ition
Note 1 to e try: RC s are c v re b a a plc ble RC pro u t sta d rd a d are u e a a prote tiv d vic
a ain t ele tric s o k
[SOURCE: IEC 6 0 0-4 2:19 8, 4 2-0 -0 , modified – The note has b en modif ied
Trang 11an ef fect cau ed by an ad itional f un tion that takes the o eratin c aracteristic outside the
l mits sp cified in the relevant RCD prod ct stan ard
3.5
e ploratory te ting
analy is an /or relevant testin p rf ormed on the as embly of
- an ad itional fu ction an a RCD declared to b as embled with the ad itional f un tion(s)
ac ordin to the man f acturer in tru tion , or
- a RCD with integrated ad itional fu ction(s),
with the o jective of determinin whether the ad itional fu ction(s) imp ir the cor ect
EX MPLE Ro k r or rotary h n le
4 Classif ication ac ording to the as ociation of a RCD with additional
f unction(s)
Ad itional f un tion are clas ified in the f olowin way
4.2 Ac ording to the type of construction
Ad itional f un tion are clas ified ac ordin to the type of con tru tion:
a) RCDs with integrated ad itional f un tion(s);
b) RCDs with non integrated ad itional f un tion(s);
4.3 Ac ording to the interfa e betwe n a RCD a d a dition l function(s)
Ad itional f un tion are clas ified ac ordin to the type of inter ace:
a) interf ace via the o eratin me n ,
b) interf ace via the mec anism of the RCD,
EX MPLE L tc in me h nism, o eratin s aft
c) interace via the circ it of the test device,
d) interace via the resid al c r ent trip in circ it,
EX MPLE Summatio c re t tra sformer with a ditio al win in , trip in rela , prote tiv circ it of th
trip in rela or of th s c n ary circ it of th s mmatio c re t tra sformer
e) interf ace via the main circ it / main contacts / main terminals,
Trang 12f ) interf ace via a combination of more than one interace.
5 Characteristics
The c aracteristic of the RCD are given in the relevant RCD stan ard
The c aracteristic of the ad itional fu ction(s) are given in the relevant stan ard, if an
6 Marking a d other product inf ormation
6.1 Instruction a d operation f or RCDs with inte rate a ditional function(s)
a cordin to 4.2 a)
Where the man facturer has integrated the ad itional fu ction(s) within the RCD, the RCD
s al b marked with the s mb l (IEC 6 417-6 91) an the man f acturer s al provide
adeq ate in tru tion an information in a le f let or data s e t
These in tru tion s al cover at le st the f olowin :
– detai ed des ription an explanation a out the u e an o jective of the ad itional
f un tion(s);
– deratin factor(s), if an ;
– in tru tion for wirin an in tal ation of the RCD integratin the ad itional fu ction(s) in
normal u e;
– in tru tion for cor ect u e of the ad itional f un tion(s)
6.2 Instru tions a d operation f or a non inte rate a dition l function a cording to
4.2 b)
Where the ad itional f un tion is not integrated within the RCD, the man f acturer s al provide
adeq ate in tru tion an inf ormation in a le flet or data s e t These in tru tion s al cover
at le st the fol owin :
– detai ed des ription an explanation a out the u e an o jective of the ad itional
f un tion(s);
– ref eren e to the typ (s) an catalog e n mb r(s), coverin c r ent an voltage ratin s,
etc of the declared RCD;
– deratin f actor(s), if an ;
– method of as embly with the declared RCD(s);
– in tru tion for wirin an in tal ation for normal u e;
– method for c ec in o eration after as embly to verify the mec anical o eration of the
RCD by mec anical me n an u in the test device;
– in tru tion f or cor ect u e of the ad itional f un tion(s)
The non-integrated ad itional fu ction(s) an the RCD s al b fom the same man f acturer
or b af fixed with the same trademark
7 Sta dard conditions f or operation in service and f or instal ation
The ad itional f un tion(s) as ociated with a RCD s al b ca a le of o eratin u der the
stan ard con ition f or o eration in service an f or in tal ation of the RCD stan ard with
whic it is declared to b as ociated (IEC 610 8-1 or IEC 610 9-1 or IEC 615 0 or IEC 6 3 5
or IEC 6 4 3 or IEC 6 6 0 as a plca le)
Trang 13Where an ad itional f un tion is declared to b as ociated with several RCDs, the stan ard
con ition of the most severe stan ard s al a ply to the ad itional f un tion
8 Requirements f or construction a d operation
The ad itional fu ction(s) as embled with a RCD s al b so desig ed an con tru ted that,
in normal u e, the p rorman e is safe an rel a le to the u er an the en ironment
For as es ment of neces ary tests, it s al b verified whic req irements provided within the
relevant RCD stan ard can b imp ired by the ad itional f un tion(s) The proced re f or
identifyin the neces ary testin is given in Clau e 9
Me sureme t ofa o erat ing lev ls, valu s or p ramet ers of t he RCD sh l l c mply wit h th
a c ptan e criteria of t he rel ev nt RCD prod uct st and ard
An ex A a ples to the non-integrated ad itional fu ction(s) u it desig ed for as embly on
site
The ad itional f un tion(s) s al b desig ed so that:
a) the RCD s al not b prevented f rom man al switc in ON or OF by the ad itional
f un tion(s) u der normal con ition ;
This con ition is con idered as f ulf il ed if the man al o enin of the RCD is not p s ible
without disa l n the ad itional f un tion(s) by me n of man al o eration
b) if the ad itional fu ction is a reclosin device, it s al b provided with me n to disa le
this f un tion;
c) a fault or a f ai ure aff ectin the normal u e of the ad itional f un tion(s) s al not res lt in a
non-compl an e of the b sic req irements for the RCD f un tion If a f ault or f ai ure of an
ad itional fu ction wi res lt in non-compl an e of the req irements of the RCD f un tion,
the oc ur en e of a f ault or f ai ure of the ad itional fu ction s al cau e the RCD to switc
OF ;
d) it s al not b p s ible to energize the circ it on the lo d side of the RCD by o eratin the
ad itional fu ction(s) when the RCD is man al y switc ed OFF an con ected as in
normal u e ( he isolation fu ction of the RCD s al not b imp ired by the ad itional
f un tion(s) , u les the ad itional f un tion is inten ed to reclose the RCD;
e) f or ad itional f un tion(s) ac ordin to 4.3 e), for example inter ace to the main contacts,
whic may cre te sp cific contacts p sition , it s al not b p s ible to alter the isolation
ca a i ty of the protective device, whatever the statu of the ad itional f un tion(s) In
case of the later the RCD or the ad itional f un tion(s) s al have a provision to loc the
RCD in the o en p sition
A del b rate resid al c r ent to e rth s al not b u ed to trip the RCD This req irement is
con idered satisfied if:
– no f ault is introd ced into the in tal ation that cau es the RCD to fu ction as a
dis on ector;
– the protective con u tor of the in tal ation do s not b come lve when the ad itional
fu ction is o erated A stan in c r ent in the PE up to the l mit of 1 mA is ac e ted with a
tou h voltage l mited not ex e din dan erou levels ac ordin to the IEC 6 3 4 an
IEC 6 4 9 series;
The degre of protection of the ad itional fu ction(s) as ociated with a RCD s al not b les
than the degre of protection of the RCD(s) with whic it is declared to b as ociated
Complian e is c e k d b t he t esting pro ed ure ofCl ause 9
Trang 148.2 Me ha ic l re uireme ts
The man f acturer s al declare the ef fect s) of the ad itional fu ction(s) on the b sic RCD
f un tion
The ad itional f un tion(s) an the RCD s al re di y fit together in the cor ect man er an the
desig s al b s c that it prevents in or ect as embly
Parts to b coupled with the trip in mec anism s al b sec rely fixed af ter mou tin an
s al not b come lo se
Fixin me n f or as embly, if an , s al b ca tive ex e t f or terminal covers
Compl ian e is c e k d b the t est ing pro ed ure of Clause 9
8.3 Ele tric l compatibi ty
Ad itional f un tion(s) s al with tan the rated c r ent an the prosp ctive s ort circ it
c r ents to whic they may b s bjected
Ad itional fu ction(s) inten ed to b con ected in series with a RCD s al with tan the rated
c r ent of the RCD an the same s ort circ it c r ents as the RCD
Terminals for ad itional f un tion(s) not inten ed to car y the rated c r ent of the RCD s al b
s ita ly rated f or the ran e of con u tors sp cified in the man facturer’s in tru tion for the
ad itional f un tion(s)
Complian e is c e k d b t he t esting pro ed ure ofCl ause 9
8.4 Prote tion a ainst ele tric s oc
Protection again t electric s oc s al not b imp ired when the ad itional fu ction is
integrated in or as embled with the RCD an mou ted an wired in ac ordan e with
NOT A p rt is c n id re to b "a c s ible" if it c n b to c e b th sta d rd te t f i g r
On e as embled, no parts s al b l kely to come lo se without intentional action by a u er or
tec nician
Compl ian e is c e k d b the t est ing pro ed ure of Cl ause 9
8.5 Diele tric propertie , isolatin c pabi ity a d ins lation co rdination
The overvoltage category of an ad itional fu ction as ociated with a RCD s al not b les
than the overvoltage category of the RCD(s) with whic it is declared to b as ociated
The ad itional fu ction(s) s al not imp ir the dielectric pro erties an the isolation ca a i ty
of the RCD with whic it is as ociated or in whic it is in orp rated This con ition is
con idered as f ulfi ed if the man al o enin of the RCD is not p s ible without disa l n the
ad itional fu ction(s) by me n of a man al o eration
Trang 158.6 Cle ra c s a d cre pa e dista c s
The cle ran es an cre p ge distan es of an ad itional fu ction as ociated with a RCD
ac ordin to clas ification 4.2 or 4.3 s al not b les than the req ired cle ran es an
cre p ge distan es of the RCD(s) with whic it is declared to b as ociat ed
Compl ian e is c e k d b t he test ing pro ed ure ofClause 9
8.7 Screws, c r e t c r yin parts a d conne tions
Con ection of the ad itional f un tion(s), whether electrical or mec anical, s al with tan the
mec anical stres es oc ur in to the declared as ociated RCD(s) in normal u e In case of an
ad itional f un tion a le to b as embled with several RCDs, the req irements of the most
severe RCD stan ard s al a ply
Compl ian e is c e k d b the t est ing pro ed ure of Clause 9
8.8 Terminals for e ternal conductors
The RCD terminals f or external cond ctors, on e as embled with the ad itional fu ction(s),
s al b s c that the con u tors may b con ected in the same con ition an with the same
req irements as the declared as ociated RCD(s)
Complian e is c e k d b t he testing pro ed ure ofCl ause 9
8.9 Temperature ris
The temp rature rise of a RCD with an ad itional fu ction s al not ex e d the values
sp cified in the stan ard f or the RCD when me s red ac ordin to the con ition sp cified in
the RCD stan ard whi e takin into ac ou t the l mits of this TR
The RCD s al not s f fer damage imp irin its fu ction an its saf e u e when as embled or
in orp rated with an ad itional f un tion
Compl ian e is c e k d b the t est ing pro ed ure ofCl ause 9
8.10 Me ha ic l a d ele tric l e dura c
RCDs' mec anical an electrical en uran e s al not b imp ired by the ad itional fu ction(s)
an s al b ca a le of p rormin the req ired n mb r of mec anical an electrical
o eration sp cified within the relevant stan ard
Where the mec anism an /or the p les are u ed f or re son other than closin /o enin the
RCD p les f or saf ety re son , a more severe testing proced re can b con idered, for
example a hig er n mb r of o eration than that sp cified in the a pl ca le RCD stan ard
NOT Th ele tric l or me h nic l e d ra c of RCDs mig t b s v rely imp ire if a ditio al f un tio (s) of a y
ty e wo ld u e RC s for re s n or f un tio s dif fere t th n th s f or whic th RC wa d sig e
Ad itional f un tion(s) havin a lower electrical or mec anical en uran e may b u ed The
test of the combination is then p rf ormed with that lower n mb r of o eration
Compl ian e is c e k d b the t esting pro ed ure of Cl ause 9
8.1 Performa c at s ort circ it c r e ts
RCDs' p rorman e d rin s ort-circ it c r ents s al not b imp ired by the ad itional
fu ction(s) an the RCDs s al b a le to p r orm the sp cif ied n mb r of s ort-circ it
o eration d rin whic they s al neither en an er the o erator nor initiate a flas over
Trang 16b twe n l ve con u tive p rts or b twe n l ve con u tive p rts an e rth as sp cified in the
relevant stan ard
Compl ian e is c e k d b the t est ing pro ed ure of Clause 9
8.12 Re ista c to me ha ic l s oc a d impa t
RCDs' resistan e to mec anical s oc an imp ct s al not b imp ired by the ad itional
f un tion(s) an s al s ow adeq ate mec anical b haviour so as to with tan the stres es
imp sed d rin in talation an u e as sp cif ied in the relevant stan ard
Compl ian e is c e k d b t he test ing pro ed ure ofClause 9
8.13 Re ista c to he t, to abnormal temperature a d to f ire
The resistan e to he t of the RCD, to a normal temp rature an to f ire s al not b imp ired
by the ad itional f un tion(s) an s al s ow adeq ate resistan e as sp cified in the relevant
stan ard
Complian e is c e k d b t he t esting pro ed ure ofCl ause 9
8.14 Te t de ic
The RCD test device s al not b imp ired by the ad itional f un tion(s) an s al s ow
adeq ate p rf orman e ac ordin to the relevant stan ard
The ad itional f un tion(s) can ot re lace the test device
An buton of an integrated ad itional fu ction (clas if ied ac ordin to 4.2) s al b se arated
f rom the RCD test but on an cle rly identif ied, the u e of the let er T not b in al owed
Compl ian e is c e k d b the t esting pro ed ure ofCl ause 9
8.15 Be a iour of RCDs in th c s of ov rc r e ts in the main circ it
Integration or as embly of an ad itional f un tion with a RCD s al not imp ir the normal
o eration of the RCD u der sp cified con ition of overc r ent
Complian e is c e k d b t he t esting pro ed ure ofCl ause 9
8.16 Be a iour of RCDs in th c s of c r e t s rge c us d by impuls volta e
The a i ty of RCDs to with tan c r ent s rges to e rth d e to the lo din of the
ca acitan es of the in tal ation an the c r ent s rges to e rth d e to f las over in the
in tal ation, as req ired within the relevant RCD stan ard, s al not b imp ired by the
ad itional fu ction(s)
Compl ian e is c e k d b the t esting pro ed ure ofCl ause 9
8.17 Be a iour of RCDs in th c s of sinusoidal re id al c r e ts a d in c s of
re idual c r e ts comprising a d.c comp ne t
The a i ty of RCDs to p r orm in the presen e of sin soidal resid al fault c r ents an in
case of resid al f ault c r ents comprisin a d.c comp nent in ac ordan e with their
clas ification, as req ired in the relevant RCD stan ard, s al not b imp ired by the
ad itional fu ction(s)