1、BSI Standards PublicationBoxes and enclosures for electrical accessories for household and similar fixed electrical installationsPart 24: Particular requirements for enclosures for housing protective devices and other power dissipating electrical equipmentBS EN 60670-24:2013BS EN 60670-24:2013Nation
2、al forewordThis British Standard is the UK implementation of EN 60670-24:2013. It is derived from IEC 60670-24:2011.The CENELEC common modifications have been implemented at the appropriate places in the text. The start and finish of each common modification is indicated in the text by .Attention is
3、 drawn to the UK A-deviation in Annex ZC detailing that: this standard cannot be used in installations with a 230 V single-phasesupply rated up to 100 A that is under the control of ordinary persons; integration of mechanical and electrical devices into an enclosure areto be verified by compliance w
4、ith BS EN 60439-3 or BS EN 61439-3.The UK participation in its preparation was entrusted to Technical Committee PEL/23, Electrical accessories.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necess
5、ary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2013Published by BSI Standards Limited 2013ISBN 978 0 580 80517 2ICS 29.120.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was p
6、ublished under the authority of the Standards Policy and Strategy Committee on 31 August 2013.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDEUROPEAN STANDARD EN 60670-24 NORME EUROPENNE EUROPISCHE NORM April 2013 CENELEC European Committee for Electrotechnical Stand
7、ardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60670-24:2013
8、E ICS 29.120.10 English version Boxes and enclosures for electrical accessories for household and similar fixed electrical installations - Part 24: Particular requirements for enclosures for housing protective devices and other power dissipating electrical equipment (IEC 60670-24:2011, modified) Bot
9、es et enveloppes pour appareillage lectrique pour installations lectriques fixes pour usages domestiques et analogues - Partie 24: Exigences particulires pour enveloppes pour appareillages de protection et autres appareillages lectriques ayant une puissance dissipe (CEI 60670-24:2011, modifie) Dosen
10、 und Gehuse fr Installationsgerte fr Haushalt und hnliche ortsfeste elektrische Installationen - Teil 24: Besondere Anforderungen fr Gehuse zur Aufnahme von Schutzgerten und hnlichen energieverbrauchenden Gerten (IEC 60670-24:2011, modifiziert) This European Standard was approved by CENELEC on 2013-
11、03-04. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be ob
12、tained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified
13、 to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Gree
14、ce, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. EN 60670-24:2013 - 2 - Contents Page Foreword . 3 1 Scope 4 2 Normative references 4 3 Defini
15、tions 4 7 Classification . 4 8 Marking . 4 12 Construction 4 13 Resistance to ageing, protection against ingress of solid foreign objects and against harmful ingress of water . 4 17 Creepage distances, clearances and distances through sealing compound . 5 101 Verification of the maximum capability t
16、o dissipate power (Pde) . 5 Annex ZA (normative) Normative references to international publications with their corresponding European publications . 6 Annex ZB (normative) Special national conditions . 7 Annex ZC (informative) A-deviations 8 BS EN 60670-24:2013- 3 - EN 60670-24:2013 Foreword This do
17、cument (EN 60670-24:2013) consists of the text of IEC 60670-24:2011 prepared by IEC/SC 23B “Plugs, socket-outlets and switches“ of IEC/TC 23 “Electrical accessories“, together with the common modifications prepared by CLC/TC 23BX “Switches, boxes and enclosures for household and similar purposes, pl
18、ugs and socket outlets for d.c. and for the charging of electrical vehicles including their connectors“. The following dates are fixed: latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2014-03-04 lates
19、t date by which the national standards conflicting with this document have to be withdrawn (dow) 2018-03-04 This Part 24 is to be used in conjunction with EN 60670-1:2005. It lists the changes necessary to convert that standard into a specific standard for housing protective devices and other power
20、dissipating electrical equipment. Where this Part 24 states “addition“, “modification“ or “replacement“, the relevant requirement, test specifications or explanatory matter in Part 1 shall be adapted accordingly. Clauses and subclauses, notes, figures or tables which are additional to those in Part
21、1 are numbered starting from 101. Additional annexes to Part 1 are numbered AA, BB, etc. In this publication the following print types are used: requirements proper: in roman type. test specifications: in italic type. notes: in smaller roman type. Clauses, subclauses, notes, tables and figures which
22、 are additional to those in IEC 60670-24:2011 are prefixed “Z”. This standard covers the Principle Elements of the Safety Objectives for Electrical Equipment Designed for Use within Certain Voltage Limits (LVD - 2006/95/EC). BS EN 60670-24:2013EN 60670-24:2013 - 4 - Endorsement notice The text of th
23、e International Standard IEC 60670-24:2011 was approved by CENELEC as a European Standard with agreed common modifications. In the official version, for Bibliography, the following note has to be added for the standard indicated: IEC 60439-3:1991 NOTE Harmonised as EN 60439-3:1991 (modified). BS EN
24、60670-24:2013- 5 - EN 60670-24:2013 BS EN 60670-24:2013EN 60670-24:2013 - 6 - Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indis
25、pensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE Where an International Publication has been modified by common modifications, indicated by (mod), the rel
26、evant EN/HD applies. Addition to the Annex ZA of EN 60670-1:2005: Publication Year Title EN/HD Year IEC 60417 - Graphical symbols for use on equipment - - IEC 60898-1 - Electrical accessories - Circuit breakers for overcurrent protection for household and similar installations Part 1: Circuit-breake
27、rs for a.c. operation EN 60898-1 - IEC 61008-2-1 - Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCBs) Part 2-1: Applicability of the general rules to RCCBs functionally independent of line voltage EN 61008-2-1 - IEC 61009-2-1 - R
28、esidual current operated circuit-breakers with integral overcurrent protection for household and similar uses (RCBOs) Part 2-1: Applicability of the general rules to RCBOs functionally independent of line voltage EN 61009-2-1 - IEC 62262 - Degrees of protection provided by enclosures for electrical
29、equipment against external mechanical impacts (IK code) EN 62262 - BS EN 60670-24:2013- 7 - EN 60670-24:2013 Annex ZB (normative) Special national conditions Special national condition: National characteristic or practice that cannot be changed even over a long period, e.g. climatic conditions, elec
30、trical earthing conditions. NOTE If it affects harmonization, it forms part of the European Standard. For the countries in which the relevant special national conditions apply these provisions are normative, for other countries they are informative. Clause Special national condition 1 Denmark This s
31、tandard can only be used for GP enclosures with the instructions according to Annex A. For the other types of enclosures the integration of mechanical and electrical devices into an enclosures are verified by compliance with DS EN 60439-3. 7 Denmark, Italy Only enclosures according to 7.101.1 and 7.
32、102.1 can be used. Belgium, Germany, France, Greece Only enclosures classified according to 7.101.2 and 7.102.2 can be used. 12.101 United Kingdom The text of this clause does not apply. Cables are retained using fixing means applied during installation by the installer. 13.2 Denmark In the case of
33、an enclosure with a door or a lid which can be opened without the use of a tool during normal use, a minimum degree of IP30 shall be maintained after opening the door or the lid. BS EN 60670-24:2013EN 60670-24:2013 - 8 - Annex ZC (informative) A-deviations A-deviation: National deviation due to regu
34、lations, the alteration of which is for the time being outside the competence of the CENELEC national member. This European Standard falls under Directive 2006/95/EC. NOTE (from CEN/CENELEC IR Part 2:2011, 2.17) Where standards fall under EU Directives, it is the view of the Commission of the Europe
35、an Communities (OJ No C 59, 1982-03-09) that the effect of the decision of the Court of Justice in case 815/79 Cremonini/Vrankovich (European Court Reports 1980, p. 3583) is that compliance with A-deviations is no longer mandatory and that the free movement of products complying with such a standard
36、 should not be restricted except under the safeguard procedure provided for in the relevant Directive. A-deviations in an EFTA-country are valid instead of the relevant provisions of the European Standard in that country until they have been removed. Clause Deviation 1 United Kingdom Electricity, Sa
37、fety, Quality and Continuity Regulations; SI 2002 2665 Add after the second paragraph: This standard cannot be used in installations with a 230 V single-phase supply rated up to 100 A that is under the control of ordinary persons. Integration of mechanical and electrical devices into an enclosure mu
38、st be verified by compliance with BS EN 60439-3. BS EN 60670-24:2013 2 60670-24 IEC:2011 CONTENTS 1 Scope 6 2 Normative references. 6 3 Definitions . 7 4 General requirements 8 5 General notes on tests . 8 6 Ratings 8 7 Classification . 8 8 Marking . 8 9 Dimensions 10 10 Protection against electric
39、shock 10 11 Provisions for earthing . 11 12 Construction 11 13 Resistance to ageing, protection against ingress of solid foreign objects and against harmful ingress of water 12 14 Insulation resistance and electric strength . 12 15 Mechanical strength . 12 16 Resistance to heat . 12 17 Creepage dist
40、ances, clearances and distances through sealing compound 12 18 Resistance of insulating material to abnormal heat and to fire 13 19 Resistance to tracking . 13 20 Resistance to corrosion . 14 21 Electromagnetic compatibility 14 101 Verification of the maximum capability to dissipate power (Pde) . 14
41、 102 Verification of temperature rise 15 Annex AA (normative) Instructions to be given by the manufacturer of the GP enclosure to the installer how to integrate accessories, and example of calculation 22 Annex BB (normative) Instructions to be given by the manufacturer of the PD enclosure to the ins
42、taller how to integrate accessories . 30 Bibliography 32 Figure 101 Arrangement for the verification of the maximum capability to dissipate power (Pde) and for verification of temperature rise of surface type enclosures . 17 Figure 102 Heating resistor for the verification of the maximum capability
43、to dissipate power (Pde) . 18 Figure 103 Position of the resistor for enclosures designed or intended to be fitted with rail mounting modular accessories and electrical equipment 19 Figure 104 Position of the resistor(s) for enclosures other than those designed or intended to be fitted with rail mou
44、nting accessories and electrical equipment . 20 Figure 105 Position of the resistor(s) for enclosures other than those designed or intended to be fitted with rail mounting accessories and electrical equipment and allowing the mounting of several accessories and electrical equipment in different posi
45、tions . 21 BS EN 60670-24:201360670-24 IEC:2011 3 Table 1 Classification of boxes and enclosures 8 Table 101 Creepage distances, clearances and distances through sealing compound . 13 Table 102 Diversity factor 16 Table 103 Temperatures of accessible surfaces . 17 Table AA.1 Diversity factor 24 Tabl
46、e AA.2 Tests and verifications . 25 Table AA.3 Calculation of Pdp28 Table AA.4 Calculation of Pau29 BS EN 60670-24:2013 6 60670-24 IEC:2011 BOXES AND ENCLOSURES FOR ELECTRICAL ACCESSORIES FOR HOUSEHOLD AND SIMILAR FIXED ELECTRICAL INSTALLATIONS Part 24: Particular requirements for enclosures for hou
47、sing protective devices and other power dissipating electrical equipment 1 Scope Replacement: This part of IEC 60670 applies to enclosures and parts of them for housing protective devices and other power dissipating electrical equipment intended to be used with a rated voltage not exceeding 400 V an
48、d a total incoming load current not exceeding 125 A for household and similar fixed electrical installations. These enclosures are intended to be installed where unskilled persons have access. They are intended to be integrated with electrical equipment on site by skilled persons (installers). They
49、are intended to be installed where the prospective short circuit current does not exceed 10 kA unless they are protected by current limiting protective devices with a cut-off current not exceeding 17 kA. Enclosures complying with this standard are suitable for use, after installation, at ambient temperature not normally exceeding 25 C, but occasionally reaching 35 C over 24 h, max. 40 C and min. 5 C. An enclosure which is an integral part of an electrical accessory and provides protection agai
