Iec 60127 1 2015

I E C 60 -1 ® Edition 2.2 201 5-02 C ON S OLI D ATE D VE RS I ON colour i n sid e M i n i atu re fu s es – P art : D e fi n i ti on s for m i n i atu re fu ses an d g en eral req u i rem e n ts for m i n i atu re IEC 601 27-1 :2006-06+AMD1 :201 -04+AMD2:201 5-02 CSV(en) fu s e-l i n ks 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 All rights reserved Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IEC's member National Committee in the country of the requester If you have any questions about I EC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local I EC member National Committee for further information IEC Central Office 3, rue de Varembé CH-1 21 Geneva 20 Switzerland Tel.: +41 22 91 02 1 Fax: +41 22 91 03 00 info@iec.ch www.iec.ch Ab ou t th e I E C The I nternational Electrotechnical Commission (I EC) is the leading global organization that prepares and publishes I nternational Standards for all electrical, electronic and related technologies Ab o u t I E C p u b l i ca ti o n s The technical content of IEC publications is kept under constant review by the IEC Please make sure that you have the latest edition, a corrigenda or an amendment might have been published I E C Catal og u e - webstore i ec ch /catal og u e The stand-alone application for consulting the entire bibliographical information on IEC International Standards, Technical Specifications, Technical Reports and other documents Available for PC, Mac OS, Android Tablets and iPad I E C pu bl i cati on s s earch - www i ec ch /search pu b The advanced search enables to find IEC publications by a variety of criteria (reference number, text, technical committee,…) It also gives information on projects, replaced and withdrawn publications E l ectroped i a - www el ectroped i a org The world's leading online dictionary of electronic and electrical terms containing more than 30 000 terms and definitions in English and French, with equivalent terms in additional languages Also known as the International Electrotechnical Vocabulary (IEV) online I E C G l os sary - s td i ec ch /g l oss ary More than 60 000 electrotechnical terminology entries in English and French extracted from the Terms and Definitions clause of IEC publications issued since 2002 Some entries have been collected from earlier publications of IEC TC 37, 77, 86 and CISPR I E C J u st Pu bl i s h ed - webstore i ec ch /j u stpu bl i sh ed Stay up to date on all new IEC publications Just Published details all new publications released Available online and also once a month by email I E C C u stom er S ervi ce C en tre - webstore i ec ch /csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: csc@iec.ch I E C 60 -1 ® Edition 2.2 201 5-02 C ON S OLI D ATE D VE RS I ON colour i n sid e M i n i atu re fu s es – P art : D efi n i ti on s for m i n i atu re fu ses an d g en eral req u i rem e n ts for m i n i atu re fu s e-l i n ks INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 29.1 20.50 ISBN 978-2-8322-2293-5 Warn i n g ! M ake su re th a t you obtai n ed th i s pu bl i cati on from an au th ori zed d i s tri bu tor ® Registered trademark of the International Electrotechnical Commission I E C 60 -1 ® Edition 2.2 201 5-02 RE D LI N E VE RS I ON colour i n sid e M i n i atu re fu s es – P art : D e fi n i ti on s for m i n i atu re fu ses an d g en eral req u i rem e n ts for m i n i atu re IEC 601 27-1 :2006-06+AMD1 :201 -04+AMD2:201 5-02 CSV(en) fu s e-l i n ks –2– CONTENTS I EC 601 27-1 : 2006 +AMD1 : 201 +AMD2: 201  I EC 201 FOREWORD Scope and obj ect Normative references Terms and definitions General requirem ents Standard ratings Marking General notes on tests Atmospheric conditions for testing Type tests 1 Fuse-bases for tests 1 Nature of suppl y 1 Dimensions and construction Dimensions Construction Term inations Alignm ent and configuration of term inations Soldered joints Electrical requirem ents Voltage drop Time/current characteristic Breaking capacity Endurance tests Maxim um sustained dissipation Pulse tests Fuse-link temperature Annex A (inform ative) Colour coding for m iniature fuse-links Annex B (inform ative) Example presentations of time/current characteristic Annex C (informative) Audit testing and surveillance – Guidelines for the application of the principles of I ECEE 03 (CB-FCS) to m iniature fuse-links 21 Bibliograph y 27 Figure Figure Figure Figure A – Layout of colour bands B – Exam ple presentation of tim e/current characteristic, ratio 2: B – Exam ple presentation of tim e/current characteristic, ratio 3: 20 C.1 – Exam ple of a fuse-link description 22 Table A – Colour coding for m iniature fuse-links Table C.1 – Audit testing for option 25 Table C.2 – Audit testing for option 26 I EC 601 27-1 : 2006 +AMD1 : 201 +AMD2: 201 –3–  I EC 201 INTERNATI ONAL ELECTROTECHNI CAL COMMISSI ON _ M I N I AT U RE F U S E S – P a rt : D e fi n i ti o n s fo r m i n i a t u re fu s e s a n d g e n e l re q u i re m e n ts fo r m i n i a tu re fu s e -l i n ks FOREWORD ) The I nternati on al Electrotech ni cal Comm ission (I EC) is a worl d wid e organization for stand ardization com prisin g all nati on al el ectrotechnical comm ittees (I EC Nation al Comm ittees) The object of I EC is to prom ote internati onal co-operation on all qu estions concerni ng standardi zati on in the electrical and electronic fields To this en d and in ad dition to other activities, I EC pu blish es I nternational Stan dards, Techn ical Specificati ons, Technical Reports, Publicly Avail abl e Specificati ons (PAS) an d Gui des (hereafter referred to as “I EC Publication(s)”) Th eir preparation is entrusted to technical comm ittees; any I EC N ation al Comm ittee interested in the subj ect dealt with m ay participate i n this preparatory work I nternational, governm ental and nongovernm ental org ani zations li aising with the I EC also partici pate i n this preparati on I EC col laborates cl osel y with the I ntern ational Organization for Stand ardization (I SO) in accordance with ditions determ ined by agreem ent between th e two organi zati ons 2) The form al decisions or ag reem ents of I EC on tech nical m atters express, as nearly as possi ble, an international consensus of opin ion on the rel evant subjects since each technical com m ittee has representati on from all interested I EC N ational Com m ittees 3) I EC Publicati ons have the form of recom m endations for i nternational use an d are accepted by I EC N ational Com m ittees in that sense While all reasonable efforts are m ade to ensure that the tech nical content of I EC Publications is accurate, I EC cann ot be held responsibl e for th e way in which they are used or for an y m isinterpretation by an y en d u ser 4) I n ord er to prom ote internati onal u niform ity, I EC Nation al Com m ittees undertake to apply I EC Publ ications transparentl y to th e m axim um extent possibl e in thei r n ational an d regi onal pu blicati ons Any di vergence between an y I EC Publ ication and the correspondi ng n ational or regi on al pu blicati on shall be clearl y in dicated in the latter 5) I EC itself d oes n ot provid e an y attestati on of conform ity I ndepend ent certificati on bod ies provi de conform ity assessm ent services an d, in som e areas, access to I EC m arks of conform ity I EC is not responsi ble for an y services carri ed out by ind ependent certification bodi es 6) All users shou ld ensure that th ey h ave the l atest editi on of thi s publ icati on 7) No liability shall attach to I EC or its directors, em ployees, servants or ag ents includ ing i n divi du al experts and m em bers of its tech nical com m ittees and I EC Nati onal Com m ittees for an y person al i nju ry, property dam ag e or other dam age of an y nature whatsoever, wheth er di rect or indirect, or for costs (includi ng leg al fees) and expenses arisi ng out of th e publ ication, use of, or rel ian ce upon, this I EC Pu blicati on or an y other I EC Publications 8) Attention is drawn to the Norm ative references cited i n this publ ication Use of the referenced publications is indispensable for the correct appl icati on of this publication 9) Attention is drawn to th e possibility that som e of the elem ents of this I EC Publication m ay be the subject of patent rig hts I EC shall not be held responsibl e for identifyi ng any or al l such patent ri ghts Th i s C on sol i d ated th e s eco n d am en d m en t am en d m en t th i s is m o d i fi e d Red l i n e d el eti on s by (2 5-0 ) I EC -1 [d o cu m e n ts to th e b a s e e d i ti o n v e rs i o n , a v e rt i c a l s t ru c k line an d t h ro u g h b e a rs [d o cu m e n ts [d o cu m en ts am en d m en ts bei n g ava i l ab l e i n of (2 0 6-06) ( 1 -0 4) ten t i s i d en ti cal In v e rs i o n e d i ti o n A th e C / /C D V C /4 / C D V an d in e d i ti o n and h as b een an d an d 2 It s i s ts C / /R V D ] , C /4 / R VC ] C /5 / R VC ] Th e of i ts an d i ts te ch n i c al i t s a m e n d m e n ts th e m a rg i n Ad d i t i o n s s e p a t e an d F i n al s h o ws w h e re d e l e ti o n s v e rs i o n th i s p u b l i c a ti o n Th i s p u bl i cati on n u m ber C /3 /F D I S p re p a re d fo r u s e r c o n v e n i e n c e a re wi th al l th e te c h n i c al d i s p l a ye d ch an g es in ten t re d , wi th accepted is –4– I EC 601 27-1 : 2006 +AMD1 : 201 +AMD2: 201  I EC 201 International Standard I EC 601 27-1 has been prepared by subcommittee 32C: Miniature fuses, of I EC technical comm ittee 32: Fuses The m ajor technical changes with regard to the first edition concern subclause 2.3 where the nature of the current source has been clarified ; in addition, I EC 60038: I EC sta n da rd volta ge s , has been added to the list of normative references This publication has been drafted in accordance with the I SO/I EC Directives, Part This Part of the I EC 601 27 series covers definitions, general requirements and tests applicable to all types of miniature fuses (e g cartridge fuse-links, sub-miniature fuse-links and universal modular fuse-links) All subsequent parts of the com plete series should be read in conjunction with this Part IEC 601 27 consists of the following parts, under the general heading Part Part Part Part Part Part Part Part Part Part 1: 2: 3: 4: 5: 6: 7: 8: 9: 0: Mi n i a ture fuses : Definitions for miniature fuses and general requirem ents for miniature fuse-links Cartridge fuse-links Sub-miniature fuse-links Universal m odular fuse-links (U MF) – Through-hole and surface m ount types Guidelines for quality assessm ent of m iniature fuse-links Fuse-holders for miniature fuse-links (Free for further documents) (Free for further documents) (Free for further documents) User guide for m iniature fuses The comm ittee has decided that the contents of the base publication and its am endments will remain unchanged until the stability date indicated on the I EC web site under "http: //webstore iec.ch" in the data related to the specific publication At this date, the publication will be • reconfirmed, • withdrawn, • replaced by a revised edition, or • am ended I M P O R T AN T th at it – Th e co n ta i n s u n d e rs t a n d i n g c o l o u r p ri n t e r of ' co l ou r c o l o u rs i ts in si d e' wh i ch c o n te n ts l og o a re U s e rs on th e co ve r c o n s i d e re d sh ou l d pag e to t h e re fo re of th i s be p ri n t p u b l i cati o n u s e fu l th i s fo r i n d i c a te s th e d ocu m en t c o rre c t u si n g a I EC 601 27-1 : 2006 +AMD1 : 201 +AMD2: 201  I EC 201 –5– M I N I AT U RE F U S E S – P a rt : D e fi n i ti o n s fo r m i n i a t u re fu s e s a n d g e n e l re q u i re m e n ts fo r m i n i a tu re fu s e -l i n ks S cop e an d ob j ect This part of I EC 601 27 covers the general requirements and tests applicable to all types of miniature fuse-links (e g cartridge fuse-links, sub-miniature fuse-links and universal modular fuse-links) for the protection of electric appliances, electronic equipment and com ponent parts thereof normall y intended to be used indoors This standard does not appl y to fuses intended for the protection of low-voltage electrical installations These are covered by I EC 60269, L ow Volta ge Fuses Specific details covering each major subdivision are given in subsequent parts This standard does not apply to fuses for appliances intended to be used under special conditions, such as in a corrosive or explosive atm osphere The obj ect of this standard is a) to establish uniform requirements for m iniature fuses so as to protect appliances or parts of appliances in the m ost suitable way, b) to define the perform ance of the fuses, so as to give guidance to designers of electrical appliances and electronic equipment and to ensure replacem ent of fuse-links by those of similar dim ensions and characteristics, c) to define m ethods of testing, d) to define maxim um sustained dissipation of fuse-links to ensure good compatibility of stated power acceptance when used with fuse-holders according to this standard (see I EC 601 27-6) N o rm a t i ve re fe re n c e s The following referenced documents are indispensable for the application of this document For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including an y am endments) applies I EC 60038, I EC sta n da rd volta ges I EC 601 27-6: 994, Min ia ture Amendm ent (1 996) Amendm ent (2003) fuse s – Pa rt 6: Fuse -holde rs for m in ia ture fuse -lin ks T e rm s a n d d e fi n i t i o n s For the purposes of this document, the following definitions appl y –6– I EC 601 27-1 : 2006 +AMD1 : 201 +AMD2: 201  I EC 201 fu se device that, by the fusing of one or more of its speciall y designed and proportioned components, opens the circuit in which it is inserted by breaking the current when this exceeds a given value for a suffi cient tim e NOTE The fuse com prises all the parts that form the com plete device iatu re fu se fuse in which the fuse-link is a miniature fuse-link 3 fu se-l in k part of a fuse including the fuse-elem ent(s) intended to be replaced after the fuse has operated en closed fu se-l in k fuse-link in which the fuse-element is totall y enclosed, so that during operation within its rating it cannot produce an y harm ful external effects, e g due to development of an arc, the release of gas or the ejection of flame or metallic particles mi n iatu re fu se-l i n k enclosed fuse-link of rated breaking capacity not exceeding kA and which has at least one of its principal dimensions not exceeding m m for the protection of electric appliances, electronic equipm ent and component parts thereof normall y intended to be used indoors NOTE Principal dim ensions are length, width, hei ght and di am eter cartri d g e fu se-l i n k enclosed miniature fuse-link of rated breaking capacity not exceeding kA and which has at least one of its principle dimensions not exceeding m m NOTE Principl e dim ensions are length, width, hei ght and di am eter iatu re fu se-li n k for special appl ication s enclosed m iniatu re fuse-link which is n ot covered i n I EC 601 27-2, I EC 601 27-3 or I EC 601 27-4 an d of rated breaking capacity n ot exceedi ng 50 kA an d havin g a width and height not exceedi ng mm and a l ength n ot exceedi ng 50 mm su b-min i atu re fu se-l in k m iniature fuse-link of which the case (bod y) has no principal dim ension exceeding mm NOTE Principal dim ensions are length, width, hei ght and di am eter u n i versal mod u l ar fu se-l in k miniature fuse-link prim aril y adapted for direct electrical connection to printed circuit boards or other conductive substrates, incorporating features designed to provide a degree of noninterchangeability where necessary fu se-l in k tact conductive part of a fuse-link designed to engage with a fuse-base contact or with a fusecarrier contact – 16 – I EC 601 27-1 : 2006 +AMD1 : 201 +AMD2: 201  I EC 201 M aximu m su stain ed di ssipation The values calculated from the m easurement taken in accordance with b) shall be within the limits specified in the relevant standard sheet Pu lse tests Where pulse tests are required in subsequent parts, they shall be performed as follows: Pu lse tests at n orm al ambi en t temperatu re Fuse-links shall be so constructed as to prevent, when subjected to current surges normall y experienced in service, an y electrical or m echanical failure impairing their com pliance with this standard Compliance is checked by the following test: a) A current pulse specified in the relevant standard sheet is passed through the fuse-link 000 times at the repetition rate specified in the relevant standard sheet The fuse-link is then allowed to cool for at least h at room tem perature b) A current equal to the value specified in the relevant standard sheet is then passed through the fuse-link for the time recommended on the relevant standard sheet c) Finall y, the voltage drop across the fuse-link after the test is measured again according to The voltage drop across the fuse-link after the test shall not have increased by m ore than % of the value measured before the test d) After the test, the m arking shall still be legible and soldered joints on end caps, for example, shall not show an y appreciable deterioration NOTE Ch ang es in colour are not consid ered as a failu re Fu se-l i n k temperatu re Where tem perature tests are required in subsequen t parts, they shall be perform ed as follows: The tem perature rise, as m easured at an y location on the fuse-link enclosure or fuse-link term inations, shall not exceed 35 K when the fuse-link is tested as follows: – the initial current shall be as specified in the relevant standard sheet; – the initial current shall be applied for m in; – after the first m in, the current shall be increased by 0, I N every m in until the fuselink operates; – the temperature of the fuse-link shall be m easured continuously; – the point for measuring the temperature shall be the hottest location NOTE Du e to the d ifficulty of specifyi ng the l ocation of the hottest poi nt, it should be determ ined d uring the initial m in NOTE A therm ocouple or other m easu rin g m ethods that d o not appreci abl y affect th e tem perature shall be used to m easure the tem peratu re rise The test base for m ounting and connection of the fuse-link shall be in accordance with I EC 601 27-1 : 2006 +AMD1 : 201 +AMD2: 201 – 17 –  I EC 201 Annex A (informative) Colour coding for miniature fuse-links Where colour bands are used for additional identification of the current rating and the time/current characteristics, the following system shall be applied: a) The miniature fuse-links specified in the relevant standard sheets are provided with four colour bands, the first three identifying the rated current expressed in milliamperes and the last, broader, colour band identifying the time/current characteristics b) The colour bands shall extend over at least half the circumference of the fuse bod y and shall be evenl y spaced and clearly separated as indicated in Figure A NOTE I n the case of transparent m iniature fuse-links, the spacings still allow for th e vi sibility of the fuseelem ent c) The I EC standards with regard to colour coding practices, i e I EC 60062 and I EC 60425, shall be used as far as applicable d) The colour code system given in Table A shall be used NOTE I n Tabl e A , both seri es R and R 20 are gi ven with thei r correspondi ng col ou r code I n ord er to keep the num ber of colou r ban ds to a m inim um , only the first two colou r bands are used for i dentifyin g the first two di gits e) I n addition to the requirem ents given in 3, it is recomm ended to print the relevant colour coding of the contents on the packing also d d d s s s 2s IEC NOTE The val ues for d an d s are given i n subsequent parts Figure A.1 – Layout of colour bands 064/06 – 18 – I EC 601 27-1 : 2006 +AMD1 : 201 +AMD2: 201  I EC 201 Table A.1 – Colour coding for miniature fuse-links Rated cu rrent mA First band colour 25 * 32 * 40 * 50 * 56 63 * 71 80 * 90 00 * 112 25 * 40 60 * 80 200 * 224 250 * 280 31 355 400 * 450 500 * 560 630 * 71 800 900 000 * 1 20 250 * 400 600 * 800 000 * 500 * 50 * 000 * 000 * 300 * 000 * 000 * * = R series Colour ban ds ind icating Red Orange Yellow Green Green Blue Violet Grey White Brown Brown Brown Brown Brown Brown Red Red Red Red Orange Orange Yellow Yellow Green Green Blue Violet Grey White Brown Brown Brown Brown Brown Brown Red Red Orange Yellow Green Blue Grey Brown Second band colour Green Red Black Black Blue Orange Brown Black Black Black Brown Red Yellow Blue Grey Black Red Green Grey Brown Green Black Green Black Blue Orange Brown Black Black Black Brown Red Yellow Blue Grey Black Green Brown Black Black Orange Black Black Third band Colour Multiplier Fourth band time/current characteristic Black « « « « « « « « Brown « « « « « « « « « « « « « « « « « « « Red « « « « « « « « « « « « Orange FF F M T TT 00 00 00 00 00 00 00 00 00 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 02 02 02 02 02 02 02 02 02 02 02 02 02 03 rated current based upon first two digi ts of R 0/R 20 seri es (0) (2) (4) (6) (8) = = = = = black red yel low blu e grey I EC 601 27-1 : 2006 +AMD1 : 201 +AMD2: 201  I EC 201 – 19 – Annex B (informative) Time s 0,001 0,01 0,1 10 00 000 000 0, 01 0, 1 Current A 10 00 000 Example presentations of time/current characteristic IEC Figure B.1 – Example presentation of time/current characteristic, ratio 2: 1 065/06 – 20 – I EC 601 27-1 : 2006 +AMD1 : 201 +AMD2: 201  I EC 201 00 000 000 000 Time s 00 10 0,1 0,01 0,001 10 × IN Figure B.2 – Example presentation of time/current characteristic, ratio 3: 1 00 IEC 066/06 I EC 601 27-1 : 2006 +AMD1 : 201 +AMD2: 201 – 21 –  I EC 201 An n e x C (informative) Au d i t te s t i n g a n d s u rve i l l a n c e – G u i d e l i n e s fo r th e a p p l i c a t i o n o f th e p ri n c i p l e s o f I E C E E ( C B - F C S ) t o m i n i a tu re fu s e - l i n ks C I n t ro d u c t o ry re m a rk s This annex contains instructions for audit testing and surveillance of fuse-links The tests and inspections described in this annex are optional However, if they are carried out, it is essential that the requirements for audit testing and surveillance are m et C O ve rvi e w This annex describes the obligations of the fuse-link manufacturers and the N ational Certification Bod y (N CB) for audit testing and surveillance of fuse-link production I t covers the preparation of the Conform ity Assessment Report and the audit testing and surveillance considered to be the m inim um requirem ents of the NCB Such inspections, tests and measures are implemented by the NCB as an audit of the m eans that the m anufacturer exercises to determ ine the conform ance of products with the requirements of the appropriate parts of I EC 601 27 C T e rm s o f re fe re n c e For the purposes of this annex, the following definitions apply C app l i can t party who requests the conformity assessm ent, and controls th e manufacturing of the product C c o n fo rm i t y a s s e s s m e n t an y activity concerned with determining directl y or indirectl y that relevant requirements are fulfilled C 3 s i g n i fi c a n t s a m p l e sam ple taken to be representative of a hom ogeneous series of fuse-links C C o n fo rm i t y As s e s s m e n t R e p o rt a document containing product and factory conform ity assessment inform ation issued by Bod y A to the applicant C C C o n fo rm i t y As s e s s m e n t Re p o rt P ro d u c t d e s c ri p t i o n The part of the Conformity Assessm ent Report regarding product description shall identify onl y those details of com ponents and dim ensions that have a major im pact on the – 22 – I EC 601 27-1 : 2006 +AMD1 : 201 +AMD2: 201  I EC 201 performance of the fuse-link The following are examples of the type of details that may be used to prepare the descriptive part of the Conformity Assessment Report: a) b) c) d) e) f) m aterial, thickness, and diagram of overall shape for every am pere rating; defines general terms such as spring-loaded, solder slug, etc.; gives details on fusing alloy material, dimensions an d any other major com ponents; material and minimum wall thickness; generic description of filler material; grain size if applicable; m aterial and plating, method of securement, and key dim ensions not covered by overall dimension requirements; description of other components which have a major impact on the fuselink design and perform ance fu s e - e l e m e n t: ti m e -d e l a y s e cti o n : b o d y: fi l l e r: co n ta cts : m i scel l an eou s: An example of a product description is included in Figure C.1 IEC 067/06 Cyli nd rical fuse-li nks 20 mm long by m m in diam eter contai ning a wi re el em ent hel ically woun d on a ceram ic core Th e wi re el em ent is sold ered to the contacts at each en d of the fuse-li nk i ii iii iv v vi C on tacts: 0, 25 m m C o re : cylin drical en d caps of plated or unplated copper alloy with a m inim um wall thickn ess of ceram ic F u s e -e l e m e n t: wire helicall y woun d on a supporti ng core Am pere rati ng: 6, A Wire diam eter: 0, 40 m m Basic m aterial: copper all oy Plating m ateri al tin F i l l e r: Tu b e : quartz san d; grain si ze 00 µ m to 300 µ m glass with a m inim um wall thickness of 0, 50 mm M i scel l an eou s i tem s : non e F i g u re C C I d e n t i fi c a t i o n – E x a m p l e o f a fu s e - l i n k d e s c ri p t i o n o f s i g n i fi c a n t s a m p l e s When the reduced sampling plan is used, the Conform ity Assessment Report shall identify the significant sam ples that are necessary for testing, chosen on the basis of their representation of a homogeneous series I f a certain fuse-link rating requires no testing or only a partial test programm e due to similarities with another fuse-link which is alread y scheduled for tests, this shall be noted I EC 601 27-1 : 2006 +AMD1 : 201 +AMD2: 201 C.5  I EC 201 – 23 – Use of the standard The requirements of I EC 601 27-1 and the relevant subsequent parts shall be applied for the audit testing and surveillance, except where inform ation in the Conform ity Assessment Report specificall y overrides these requirem ents Specific references are noted in Tables C and C C.6 Audit test and surveillance programme options Four program me options are available to verify the ability of the applicant to suppl y fuse-links that continue to m eet the requirements of the relevant part of I EC 601 27 The applicant shall choose one of these options The program mes are not intended for combined use, though different programm es m ay be chosen for different fuse-link series Option : a complete test programme according to the relevant part of I EC 601 27 shall be perform ed on every am pere rating of each fuse-link series The complete programme shall be repeated at year intervals according to C below Option 2: a complete test programme according to the relevant part of I EC 601 27 shall be per-formed on every ampere rating of each fuse-link series The complete programm e shall be repeated at years intervals, and the applicant's quality control system shall be utilized according to C.6.2 below Option 3: a test programm e which uses the homogeneous series (significant sam ple) approach shall be perform ed according to C below Option 4: a test programm e which uses the homogeneous series (significant sample) approach and the applicant’s quality control system shall be performed according to C below The following points apply to each option: a) the scheduling of the audit testing and surveillance m ay be staggered; b) the NCB shall be responsible for surveillance and audit activities; c) the applicant shall give proof of continuous conformance with the requirements of the appropriate part of I EC 601 27; d) the selection of sam ples for audit testing and surveillance shall be random, if possible; e) it is recomm ended that spare sam ples be selected for audit testing, in order to reduce the delay if additional tests are needed; f) utilization by N CB of m anufacturer’s test facilities: ) testing at manufacturer’s premises (TMP): tests may be carried out by the staff of a CB testing laboratory at the manufacturer’s test laboratory under specific rules aimed at verifying compliance Approval by the NCB of the manufacturer’s laboratory is not necessary providing the laboratory is currentl y registered with a duly accredited certification bod y/registrar; 2) supervised manufacturer’s testing (SMT): tests may be carried out (wholl y or in part) by the manufacturer’s test laboratory providing it has been previously approved by the N CB under specific rules aim ed at verifying compliance Approval by the N CB of the m anufacturer’s laboratory is not necessary providing the laboratory is currentl y registered with a duly accredited certification bod y/registrar – 24 – C.6.1 C.6.1 Audit testing and surveillance – Option I EC 601 27-1 : 2006 +AMD1 : 201 +AMD2: 201  I EC 201 Audit testing A complete test program me according to the relevant part of I EC 601 27 shall be performed on every am pere rating of each fuse-link series The complete programme shall be repeated at year intervals These audit tests m ay be witness testing, re-testing, TM P or SMT C.6.1 Surveillance Routine inspection shall take place no less than once per year The inspection shall review each product for consistency with the product description in the Conformity Assessment Report C.6.2 C.6.2.1 Audit testing and surveillance – Option Additional obligations of the NCB The N CB is required to assess the manufacturer’s quality system I n addition, the manufacturer’s quality system shall be reviewed to ensure that it includes the surveillance detailed below C.6.2.2 Additional obligations of the applicant Applicants are required a) to have a documented quality system in operation, which includes provisions for continuous conform ance with the requirements of the relevant part of I EC 601 27, b) to include in their quality system the surveillance detailed in C 6.2.4 C.6.2.3 Audit testing A com plete test program me according to the relevan t part of I EC 601 27 shall be performed on every am pere rating of each fuse-link series The com plete programme shall be repeated at year intervals These audit tests m ay be witness testing, re-testing, TMP, or SMT C.6.2.4 Surveillance Routine inspection shall take place no less than once every two years The inspection shall review each product for conform ance with the product description in the Conform ity Assessm ent Report The inspection shall also com prise routine assessm ent of the operation of the quality plan and the quality system The applicant shall record all routine tests required by the applicant’s quality system and make these records available for verification and review on the NCB’s request The NCB shall inspect the results of all routine tests required by the applicant's quality system every two years C.6.3 Audit testing and surveillance – Option A test program me utilizi ng the hom ogeneous series (significant sam ple) approach shall be perform ed C.6.3.1 Audit testing A test programm e according to the hom ogeneous series concepts of I EC 601 27 shall be perform ed on significant samples in accordance with the schedule shown in Table C These audit tests may be witness testing, re-testing, TMP, or SMT I EC 601 27-1 : 2006 +AMD1 : 201 +AMD2: 201  I EC 201 Tabl e C – 25 – – Au d i t t e s t i n g fo r o p t i o n S a m p l e n u m b e rs i n S u bcl au se D e s c ri p t i o n of -6 7-1 A s I E C -1 Endu rance test Rated breaking capacity Tim e/current characteristics 10 IN IN or 2, IN a) d e c re a s i n g 13 14 15 16 17 18 A s v a l u e o f v o l t a g e d ro p 19 20 21 22 23 24 A s 25 26 27 28 29 30 A s A Tested ann ual ly s Spare fuse-links, onl y used if non -conform ing results are obtain ed a) As specified in the rel evant standard sh eet C S u rv e i l l a n c e Routine inspections shall take place no less than once per year The inspection shall review each significant sam ple for conform ance with the product description in the Conform ity Assessm ent Report C Au d i t t e s t i n g an d s u rv e i l l a n c e – O p t i o n A test programm e which uses the hom ogeneous series (significant sample) approach and the applicant’s quality control system shall be perform ed C Ad d i t i o n a l o b l i g a t i o n s o f t h e N C B The N CB is required to assess the m anufacturer’s quality system I n addition, the manufacturer’s quality system shall be reviewed to ensure that it includes the surveillance and audit testing detailed below C Ad d i t i o n a l o b l i g a t i o n s o f t h e a p p l i c a n t The applicant is required a) to have a docum ented quality system in operation which includes provisions for continuous conform ance with the requirements of the relevant part of I EC 601 27; b) to include in their quality system the surveillance detailed in C 6.4.4 C Au d i t t e s t i n g A test programm e shall be performed in accordance with the schedule shown in Table C.2 These audit tests m ay be witness testing, re-testing, TM P, or SMT – 26 – I EC 601 27-1 : 2006 +AMD1 : 201 +AMD2: 201  I EC 201 T a b l e C – Au d i t t e s t i n g fo r o p t i o n S a m p l e n u m b e rs i n S u bcl au se D e s c ri p t i o n of -6 7-1 B s I E C -1 Endurance test Rated breaking capacity Tim e/current characteristics 10 IN or 2, IN d e c re a s i n g 13 14 15 16 17 18 B s IN a) v a l u e o f v o l t a g e d ro p 19 20 21 22 23 24 B s 25 26 27 28 29 30 B s B Tested every two years s Spare fuse-links, onl y used if non -conform ing results are obtain ed a) As specified in the rel evant standard sh eet C 4 S u rv e i l l a n c e Routine inspections shall take place no less than once every two years The inspection shall review each significant sam ple The inspection shall also com prise routine assessment of the operation of the quality plan and the quality system The applicant shall record all routine tests required by the applicant’s quality system and make these records available for verification and review on the NCB’s request The NCB shall inspect the routine test results every two years C Ac c e p t a b i l i t y o f a u d i t t e s t re s u l t s I f m ore than one sam ple has non-conforming results during the audit testing, the fuse-link and all represented fuse-links shall be rejected I f a single non-conform ing result is obtained for a particular test during the audit testing, a second set of sam ples from the same lot shall be selected and subjected to the same test The second set shall have the sam e number of samples as the first set I f an y non-conform ing results are obtained on the second set, the fuse-link and all represented fuse-links shall be rejected C Ac c e p t a b i l i t y o f s u rv e i l l a n c e re s u l t s I f an y non-conform ing results are obtained durin g the surveillance, the N CB shall consult with the manufacturer and applicant to determ ine whether the non-conformance is significant, and whether corrections need to be m ade, or type testing perform ed I EC 601 27-1 : 2006 +AMD1 : 201 +AMD2: 201  I EC 201 – 27 – Bibliography I EC 60062: 2004, Ma rki n g co des for resi stors a n d ca p a ci tors I EC 60425: 973, G ui de for th e ch oi ce of colours to b e use d for th e m a rki n g of ca p a ci tors a n d resi stors I ECEE 03: 2005, Rules of Procedure of the Sche me of th e I ECEE for Mutua l Recogn i ti on of Con formi ty A ssessme n t Certi fi ca tes a ccordi n g to Equi p me n t a n d Co mp on en ts (CBFCS) _ Sta n da rds for Electri ca l a n d Electron i c INTERNATIONAL ELECTROTECHNICAL COMMISSI ON 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