Tiêu chuẩn iso 10924 1 2016

© ISO 2016 Road vehicles — Circuit breakers — Part 1 Definitions and general test requirements Véhicules routiers — Coupe circuits — Partie 1 Définitions et exigences d’essais générales INTERNATIONAL[.]

Road vehicles — Circuit breakers —

Part 1:

Definitions and g eneral test

Vé ic ule s ro tiers — Co pe-c ircuits —

Partie 1: Définitions et exigence s d’essais g n rale s

S con edition

2 16-04-0

Refer ence n mb r

COPYRIGHT PROTECTED DOCUMENT

© ISO 2016, P blshed in Sw itz rlan

A ll rig hts r eserved Unles otherw ise spe ified, nopar of this p blc tion ma y be r epr od c d or utilz d otherw ise in an form

or b an me ns, ele tr onic or me hanic l, inclu in p oto opying , or postin on the internet or an intranet , w ithout prior

written permis ion Permis ion c n be req esed from either ISO at the ad r es below or ISO’s member bod y in the c u try of

F reword v

1 Sc ope 1

2 Nor mati ve r eferenc es 1

3 Terms and definitions 1

4 Mar king, labeling and c olour c oding 5

5 Tests and requirements 5

5.1 General 5

5.1.1 General tes con itions 5

5.1.2 General pe formanc r eq ir ement 6

5.2 Voltag e dr op 6

5.2.1 P rp se 6

5.2.2 Tes 6

5.2.3 Req ir ement 6

5.3 Max imum housing temper atur e 6

5.3.1 P rp se 6

5.3.2 Tes 6

5.3.3 Req ir ement 6

5.4 Envir onmental con itions 7

5.4.1 P rp se 7

5.4.2 Me hanical lo ds 7

5.4.3 Clmatic lo ds 7

5.4.4 Chemical lo ds 7

5.5 Operating time rating 7

5.5.1 P rp se 7

5.5.2 Tes 8

5.5.3 Req ir ement 8

5.6 Curr ent s eps 8

5.6.1 P rp se 8

5.6.2 Tes 8

5.6.3 Req ir ement 8

5.7 No current trip an r eset temperatur e 8

5.7.1 P rp se 8

5.7.2 Tes 8

5.7.3 Req ir ement 9

5.8 A bsolute br eaking ca acity 9

5.8.1 P rp se 9

5.8.2 Tes 9

5.8.3 Req ir ement 9

5.9 Breaking ca acity 9

5.9.1 P rp se 9

5.9.2 Tes 1

5.9.3 Req ir ement 1

5.1 Str eng th of te minals 1

5.1 1 P rp se 1

5.1 2 Tes 1

5.1 3 Req ir ement 1

5.1 En uranc 1

5.1 1 P rp se 1

5.1 2 Tes 1

5.1 3 Req ir ement 1

5.1 Diele tric s r eng th .1

5.1 3 Req ir ement 1

A nne x A (informative)C cl ng profies 13

A nne x B (informative)Test cir cuit

15

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org nizations, g ove nmental an non-g ove nmental, in laison with ISO, also take part in the work

ISO cola orat es closely with the Int ernational Ele trot ech ical C mmis ion (IEC) on al matt ers of

ele trot ech ical s an ardization

The proc d r s used t o develo this document an those int en ed for it furthe maint enanc ar

desc ibed in the ISO/IEC Dir ctives, Part 1 In p rticular the dife ent a pro al c it eria ne ded for the

dife ent ty es of ISO document should be not ed This document was draft ed in ac ordanc with the

edit orial rules of the ISO/IEC Dir ctives, Part 2 ( e www.iso.org dir ctives)

A tt ention is drawn t o the p s ibi ity that ome of the element of this document ma be the subje t of

p t ent right ISO shal not be held r sp nsible for identifying any or al such p t ent right Detais of

any p t ent right identif ied d ring the develo ment of the document wi be in the Introd ction an / r

on the ISO ls of p t ent de larations r c ived ( e www.iso.org p t ent )

Any trade name used in this document is information given for the convenienc of use s an does not

cons itut e an en orsement

F or an ex lanation on the meaning of ISO spe if ic t erms an ex r s ions r lat ed t o conformity

as es ment, as wel as information a out ISO’ s adhe enc t o the WTO principles in the Te h ical

Bar ie s t o Trade (TBT) se the fol owing URL: F or word - Sup lementary information

The committ ee r sp nsible for thisdocument is ISO/TC 2 , Ro d vehicles , Subcommitt ee SC 3 , Elec tric al

a d elec tro ic c omp nents a d gene al sys tem as pec t s

This se on edition canc ls an r plac s the f irs edition (ISO 1 9 4-1:2 0 ), w hich has be n

t ech icaly r vised

ISO 1 9 4 consis s of the folowing p rt , un e the g ene al title Ro d vehicles — Circ uit br ake s:

— Part 1: De initions  a d gene al tes t r q ir ment

— Part 2 : Us er’s g ide

— Part 3: Miniatur  c irc uit br ake s w ith ta s (B lade t y pe), Form C 1

— Part 4: Medium c irc uit br ake s w ith ta s (B lade t ype), Form C 15

— Part 5: Circ uit br ake s w ith b lt w ith rated v lta e o 450 V

Road vehicles — Circuit br eakers —

Part 1:

This p rt of ISO 1 9 4 defines t erms an spe ifies g ene al t es r q ir ment for cir uit br ake s for

use in ro d vehicles with a nominal v ltag e of 1 V d.c 24 V d.c, 48 V d.c an 45 V d.c

This p rt of ISO 1 9 4 is int en ed t o be used in conjunction with othe part of ISO 1 9 4 The

n mbe ing of it cla uses cor esp nds t o that of this part of ISO 1 9 4 w hose r q ir ment ar

a plca le, ex cept w he e modified b r q ir ment particular t o this p rt of ISO 1 9 4

This p rt of ISO 1 9 4 is not a plca le t o cir uit br aker holde s (ele trical c ntr s or fuse-holde s)

used in vehicles

2 Normati ve r eferences

The folowing document , in w hole or in p rt, ar normatively r fe enc d in this document an ar

in ispensa le for it a pl cation F or dat ed r fe enc s, only the edition cit ed a pl es F or u dat ed

r fe enc s, the lat es edition of the r fe enc d document ( inclu ing any amen ment )a pl es

ISO 6 2 – , Ro d vehicles — 6 0 V a d 6 00 V s in le-c or  c ables — Part 1: Dimens io s , tes t meth ds a d 

r q ir ments fr c op e  c onduc tor c ables

ISO 88 0 1, Ro d vehicles — Fus e -lnk s — Part 1: De initio s a d gene al tes t r q ir ments

ISO 8 2 – , Ro d vehicles — Fus e -lnk s — Part 3 : Fuse- nk s w ith ta s (blade t y pe) Ty pe C (medium ), Type 

E (hig  c ur ent) a d Ty pe F (miniatur )

ISO 1 7 0– , Ro d vehicles — Env iro mental c onditions a d tes tin  fr elec tric al a d elec tro ic 

eq ipment  Part 1: G ene al

ISO 1 7 0– , Ro d vehicles — Env iro mental c onditio s a d tes tin  f r elec tric al a d elec tro ic 

eq ipment  Part 3 : Me h nic al lo ds

ISO 1 7 0–4, Ro d vehicles — Env iro mental c onditio s a d tes tin  fr elec tric al a d elec tro ic  

eq ipment  Part 4 : Clmatic lo ds

ISO 1 7 0– , R oad vehicles — Enviro mental c onditions a d tes tin  fr elec tric al a d elec tro ic 

eq ipment  Part 5: Chemic al lo ds

IEC 6 0 8– 2–70, Env iro mental tes tin   Part 2 : Tes ts — Tes t Xb: Abras io  o markin s a d let e in s 

c aus ed b  ru bin  o fin e s a d h nds

3 Terms and definitions

F or the purposes of this document, the t erms an definitions given in ISO 1 7 0-1, ISO 8 2 -1 an the

folowing a ply

absolute bre king capacity

v lue of prospe tive br aking cur ent that a cir uit br ake isca a le of br aking at leas onc at U

cir uit bre ker

over ur ent prote tion devic that me hanicaly inte rupt the cir uit r versibly, r sp nsive to

ele tric cur ent

Not e 1 t o entry: The test f ixture for the cir uit bre ker may b identical to the test f ixture as des rib d in the

ap ropriate part of ISO 8 2 ; however, some cir uit bre ker designs do not req ire a separat e test f ixture as the

ca les are directly con ected to the cir uit bre ker terminals

3.4 Circuit br eake c ompo ents

time delayed element

active p rt that act depen ing on the cur ent an causes the r ve sible int er uption of the cir uit in

the case of an o e cur ent

3.5 Circuit br eake fe tures

3.5.1

reset mechanism

pro ides a use int erfac in a man al r set c irc uit br ake (3.3) for r set ing the devic aft er an

o e cur ent con ition

3.5.2

snap-actio mechanism

ensur s that the contact closing spe d b me hanical r set is in epen ent of the spe d of o e ation of

the r s et mecha i s m(3.5.1)

cycl ng trip fre

cir uit br ake me hanism that cycles t o o en an close the contact (s) r peat edly if the actuat or is

maintained in the “O N” p sition in case of o e cur ent

ful y trip fre

cir uit br aker me hanism that wi cause the mo ing contact (s) t o o en an r main o en, even if the

actuat or is maintained in the “O N” position in case of o e cur ent

3.5.5

trip fre mechanism

pr vent the sw itchin  me h ni s m (3.5.3) from being defeat ed b for ibly holding the actuat or “O N”

p sition, i.e cannot be held closed a ains an o e lo d

3.6 Circuit breake types

ty e I – electrical y reset

has a se on ary heating cir uit w hich, aft er an o e cur ent con ition oc urs, c eat es heat int ernaly

up n the time dela ed element (3.4.3) of the c irc uit br ake (3.3) t o ke p it from r versing as long as

ele trical sy st em v ltag e an a smal cur ent flow (< ,0 A) is a ai a le, r set function is ac omplshed

b r mo ing al ele trical p wer sup led t o the cir uit br aker unti the int ernal the mal element co ls

down an r turns t o it con uctive p sition

s r ngth measur d betwe n spe if ied measuring p int , as shown in the a pro riat e part of

ISO 1 9 4, at a spe ified v ltag e without lash-o e

time betwe n the a pl cation of an o e cur ent an the moment w hen the cur ent dro sbelow a v lue

as spe ified in the a pro riat e part of ISO 8 2

[ SOURCE:ISO 8 2 -1:2 14, 3.7]

3.1

o erating time rating

o e atin  time (3.9), as a fu ction of the cur ent u de defined t es con itions

[ SOURCE:ISO 8 2 -1:2 14, 3.8]

prospective cur ent

I

P

cur ent, w hich would flow in a cir uit, if the c irc uit br ake (3.3)would be r plac d b a con uct or with

neglgible impedanc

Not e 1t o entry: S e Figure B.1

3.12

rated cur ent

I

R

cur ent used for identifying the c irc uit br ake (3.3), ac ording t o spe if ied t es s

Not e 1t o entry: T e contin ous cur ent can b lower than the rated cur ent

reset ing time

time ela sed between a c irc uit br ake (3.3) trip ing d e t o an o e cur ent an subseq ently r aching

the a i ty of the cir uit br aker t o be r set

time r q ir d for a phy sical q antity t o rise from 0 t o 1 – 1 e ( hat id 6 ,2 % ) of it f inal st eady v lue

w hen it v rieswith time, t, as 1 – 1

4 Mar king, label ing and colour c oding

The cir uit br ake s shal be pe manently marked with the folowing t o be ext ernaly visible:

— rat ed cur ent ( I

R) in Ampe e (A), the v lue of the rat ed cur ent (I

R) without u it is ac ept ed;

— sup ly v ltag e ma imum ( U

Sma) in (V);

— colour coding;

— man factur r’s name, trademark an / r symb l;

— p rt no or identif ication

5 Tests and r equirements

5.1 General

5.1.1 General test c onditio s

If not othe wise spe if ied, al t es s shal be pe formed at ro m t empe atur (R T) (2 ± 5) °Cat a r lative

h midity (RH)of 45% t o 7 % ( tan ard con ition)

A t the beginning of the ele trical t es s, a dir ct cur ent shal be f ix ed at the rat ed v lue This cur ent

shal be measur d with an a pro riat e method If not othe wise spe ified, no furthe adjus ment

d ring the t es s ar alowed

Al ele trical measur ment eq ipment hal ha e a t ole anc of les than ± %

Mount he cir uit br aker in a t es f ixtur (holde ) as spe if ied in the a pl ca le part of ISO 1 9 4

F or a pro riat e ca le siz s, se the a plca le p rt of ISO 1 9 4

Tempe atur measur ment shal be pe formed at no for ed air flow

Conne tions shal be made t o the cir uit br ake with co pe ca les ac ording t o ISO 6 2 -1 The ca le

length between the t es f ixtur an the r s of the t es set-up shal be (5 0 ± 5 ) mm, if not othe wise

spe ified

Measur the con e tion r sis anc using a d mmy with dimensions as spe if ied in the a pro riat e

p rt of ISO 1 9 4 Use a cur ent as spe if ied in the a pro riat e p rt ofISO 1 9 4 for this measur ment

F or the used v ltag es, se Ta le 1

Table 1 — Supply v ltag e maximum ( U

Sma)

Nominal voltag e

(U

N)

V

Sup ly volta e ma imum

(U

Sma)

5.1.2 General perfor manc e requir ements

— Marking and/ r la el ng shal r main legible

— Colour coding shal r main r co niza le

— Aft er t es ing, the cir uit br aker shal be r mo a le from the t es fixtur b it int en ed method

— Man al an swit cha le cir uit br akers shal pro ide visible evidenc of the swit ching s atus

5.2 Voltag e dr op

5.2.1 Purpose

This t es is t o def ine an measur the ene g consumption of the cir uit br aker w hich c eat es

t empe atur rise

5.2.2 Test

If not othe wise spe if ied, this t es shal be pe formed at I

R The v ltag e dro shal be measur d at he

point shown in the a plca le p rt of ISO 8 2 aft er the v lue of the measur d v ltag e has not chang ed

mor than 2 % within a 1 min pe iod

5.2.3 Requirement

Thema imum v ltag e dro shal not ex ce d the v lues as shown in the a plca le p rt of ISO 1 9 4

5.3 Max imum housing temperatur e

an measur the housing t empe atur b using a the mocouple at ached

t o the hott es p int of the housing Aft er the cur ent has be n flowing for a minimum of 1 min an

the measur ment has be n s a i z d, r cord the ma imum housing t empe atur A measur ment is

conside ed t o be s a i iz d w hen thr e suc es ive r cords, taken in int erv ls of 1 % of the pr viously

ela sed d ration of the t es , but not les than 1 min int erv ls, advise no chang e

5.3.3 Requirement

Ma imum housing t empe atur shal be les than 9 °C

If me hanical lo d t es s ar r q ir d, a pro riat e t es s shal bechosen from ISO 1 7 0-3, w hich have t o

be a r ed up n between cir uit br ake man factur r an vehicle man factur r

NOTE T e rating values have to b taken int o ac ou t

If clmatic lo d t es s ar r q ir d, a pro riat e t es s shal be chosen from ISO 1 7 0-4, w hich ha e t o be

a r ed upon betwe n cir uit br aker man factur r an vehicle man factur r

5.4.3.2 Requirement

Aft er a minimum of t en cycles, the cir uit br aker shal me t the r q ir ment as shown in the

a plca le p rt of ISO 1 9 4 Tes methods an the def inition of cycles ar spe ified in the a pl ca le

p rt of ISO 1 7 0-4

5.4.4 C emical loads

5.4.4.1 Test

If chemical lo d t es s ar r q ir d, a pro riat e t es s con ition, proc d r s an pe formanc shal be

chosen from IEC 6 0 8- 2-7 an ISO 1 7 0-5, w hich ha e t o be a r ed upon betwe n cir uit br aker

man factur r an vehicle man factur r

5.5.2 Test

The t es f ixtur an cir uit br aker shal be s a i iz d at R T befor each t es The powe sup ly shal be

adjust ed t o the t es cur ent (multiple rat ed cur ent) as spe ified in the a pl ca le p rt of ISO 1 9 4

Then, the t es cur ent shal be a pled t o the cir uit br ake A measur ment is conside ed t o be

s a i z d w hen thr e suc es ive r cords, taken in int erv ls of 1 % of the pr viously ela sed d ration

of the t es , but not les than 1 min int erv ls, advise no chang e

The t es voltag e shal not ex ce d thesup ly v ltag e ma imum of the cir uit br aker

NOTE Electrical y reset cir uit bre ker (T pe I )have a holding cur ent aft er activation

Firs , a cur ent eq iv lent in v lue t o the rating of the cir uit br ake u de t es shal be a pled for

d ration of 5 min Then, the cur ent shal be seq entialy inc eased in st eps of 2,5 % of the cir uit

br aker rating in 5 min int erv ls u ti the cir uit br ake trips

5.6.3 Requirement

Aft er the cur ent st ep t es , the cur ent through the cir uit br aker shal not ex ce d the v lue spe if ied

in the a pro riat e p rt of ISO 1 9 4 at the sup ly v ltag e ma imum, U

Sma The cir uit br aker shal be

r mo a le from the t es fixtur b it int en ed method aft er r turning t o RT The devic s subje t ed t o

the cur ent st ep t es shal ad itionaly be subje t ed t o o e ating time rating t es as desc ibed in 5.5.2

5.7 No cur r ent trip and reset temperature

5.7.1 Purpose

This t es is t o ev luat e the cir uit br aker’ s design v riations an ambient t empe atur compensation

5.7.2 Test

The cir uit br aker shal be plac d int o a clmat e chambe for 3 min at a t empe atur as folow s:

— for rat ed cur ent of 1 A an les :72 ± 2 °C;

— for rat ed cur ent a o e 1 A:1 2 ± 2 °C

Aft er the 3 min, the t empe atur shal be raised at a rat e not ex ce ding 1 °C/ min an the t empe atur

at w hich the cir uit br aker o ens shal be r corded Aft er the cir uit br ake has o ened, the

t empe atur at a rat e not ex ce ding 1 °C min shal be de r ased and the t empe atur at w hich the

cir uit br aker closes shal be r corded If mor than one cir uit br aker is t est ed at one time, they shal

al o en befor the t empe atur is de r ased

If a cir uit br aker does not trip up t o a ma imum ambient t empe atur depending on the plas ic

mat erial, but not les than 1 0 °C, the t es shal be t erminat ed In this case, the cir uit br aker shal be