EN 60670-22-2006 en Boxes and enclosures for electrical accessories for household and similar fixed electrical installations Part 22 Particular requirements for connecting boxes an.pdf

1、BRITISH STANDARD BS EN60670-22:2006Boxes and enclosuresfor electricalaccessories forhousehold and similarfixed electricalinstallations Part 22: Particular requirements forconnecting boxes and enclosuresICS 29.120.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g5

2、4g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Incorporating corrigendumOctober 2010 and December 2010National forewordThis British Standard is the UK implementation of EN 60670-22:2006. It was derived by CENELEC from IEC 60670-22:2

3、003.The CENELEC common modifications have been implemented at the appropriate places in the text and are indicated by tags (e.g. ).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

4、obtained on request to its secretary.BS 6220 included dimensions for fixing centres which are unique to UK electrical wiring accessories and which are desirable to allow the easy mounting onto other boxes used in UK. See Informative UK National Annex NA.BS 6220 included test currents significantly h

5、igher than those in this standard for terminals of equal capacity. It has been common practice for UK manufactures to mark a rated current on junction boxes (although such marking was not a requirement of BS 6220). Consequently, there is now a risk of junction boxes tested to this standard being use

6、d as replacements for BS 6220 boxes in circuits with currents higher than proven by testing to this standard. Therefore, it is recommended that junction boxes for use in the UK are marked with an appropriate rated current which does not exceed the test current for the intended rated connecting capac

7、ity given in Table 101. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.BS EN 60670-22:2006This British Standard was published u

8、nder the authority of the Standards Policy and Strategy Committee on 30 April 2007 BSI 2010Amendments/corrigenda issued since publicationDate Comments 31 October 2010 Additional information added to national forewordISBN 978 0 580 74022 031 December 2010 Correction to text in national forewordEUROPE

9、AN STANDARD EN 60670-22 NORME EUROPENNE EUROPISCHE NORM December 2006 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2006 CENEL

10、EC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60670-22:2006 E ICS 29.120.10 English version Boxes and enclosures for electrical accessories for household and similar fixed electrical installations Part 22: Particular requirements for

11、 connecting boxes and enclosures (IEC 60670-22:2003, modified) Botes et enveloppes pour appareillage lectrique pour installations lectriques fixes pour usage domestique et analogue Partie 22: Rgles particulires concernant les botes et enveloppes de connexion (CEI 60670-22:2003, modifie) Dosen fr Ins

12、tallationsgerte fr Haushalt und hnliche ortsfeste elektrische Installationen Teil 22: Besondere Anforderungen fr Verbindungsdosen (IEC 60670-22:2003, modifiziert) This European Standard was approved by CENELEC on 2006-07-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulatio

13、ns 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 obtained on application to the Central Secretariat or to any CENELEC member. This Eu

14、ropean 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 to the Central Secretariat has the same status as the official versions. CENELEC members ar

15、e the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Swede

16、n, Switzerland and the United Kingdom. Foreword The text of the International Standard IEC 60670-22:2003, prepared by SC 23B, Plugs, socket-outlets and switches, of IEC TC 23, Electrical accessories, together with the common modifications prepared by the Technical Committee CENELEC TC 23B, Switches

17、for household and similar fixed electrical installations, was submitted to the CENELEC Unique Acceptance Procedure and approved on 2005-08-26. However, due to some omissions in the text and taking into account the comments submitted by National Committees during the voting period, the CLC/TC 23B Sec

18、retary asked BT not to ratify the document. A new draft was submitted to the formal vote and was approved by CENELEC as EN 60670-22 on 2006-07-01. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or b

19、y endorsement (dop) 2007-07-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2009-07-01 This Part 22, which specifies particular requirements for connecting boxes and enclosures, is to be used in conjunction with EN 60670-1:2005. This Part 22 suppleme

20、nts or modifies the corresponding clauses of EN 60670-1. Where a particular clause or subclause of Part 1 is not mentioned in this Part 22, that clause or subclause applies as far as is reasonable. Where this Part 22 states “add”, “replace” or “delete”, the relevant text of Part 1 is to be adapted a

21、ccordingly. Annexes ZA and ZB have been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 60670-22:2003 was approved by CENELEC as a European Standard with agreed common modifications as given below. 2 BS EN 60670-22:2006EN 60670-22:2006 (E)CONTENTS1 Scope 52 Normativ

22、e references. 53 Definitions . 54 General requirements . 65 General notes on tests 66 Ratings . 77 Classification 78 Marking 79 Dimensions. 810 Protection against electric shock. 811 Provision for earthing 812 Construction . 813 Resistance to ageing, protection against ingress of solid objects and a

23、gainstharmful ingress of water 914 Insulation resistance and electric strength 915 Mechanical strength1016 Resistance to heat1017 Creepage distances, clearances and distances through sealing compound.1218 Resistance of insulating material to abnormal heat and to fire.1219 Resistance to tracking 1220

24、 Resistance to rusting 1321 Electromagnetic compatibility13Annex AA (informative) Examples of connecting boxes/enclosures 14Figure 101 Single terminal device 13Figure 102 Multiway terminal device.13Table 101 Relationship between rated connecting capacity and test current.11Table 102 Creepage distanc

25、es, clearances and distances through sealing compound12 4 Annex ZA (normative) Normative references to international publications with theircorresponding European publications 15Annex ZB (normative) Special national conditions.15BS EN 60670-22:2006EN 60670-22:2006 (E)BOXES AND ENCLOSURES FOR ELECTRI

26、CAL ACCESSORIES FORHOUSEHOLD AND SIMILAR FIXED ELECTRICAL INSTALLATIONS Part 22: Particular requirements for connecting boxes and enclosures1 ScopeThis clause of Part 1 applies with the following addition:Add after the fourth paragraph:This standard applies to connecting boxes for junction(s) and/or

27、 tapping(s).NOTE Unless otherwise stated, throughout the document the term “boxes” also applies to “enclosures”.2 Normative referencesThis clause of Part 1 applies with the following addition:IEC 60999-1:1999, Connecting devices Electrical copper conductors Safety requirementsfor screw-type and scre

28、wless-type clamping units Part 1: General requirements andparticular requirements for clamping units for conductors from 0,2 mm2up to 35 mm2(included)3 DefinitionsThis clause of Part 1 applies with the following additions:3.101connecting boxjunction boxbox allowing connection of conductors3.101.1jun

29、ction connecting boxconnecting box allowing connection of one or more junctions3.101.2tapping connecting boxconnecting box allowing connection of one or more taps from one or more main conductorsNOTE Connecting boxes according to 3.101.1 and 3.101.2 may be combined. 5 IEC 60999 (series), Connecting

30、devices Electrical copper conductors Safetyrequirements for screw-type and screwless-type clamping units BS EN 60670-22:2006EN 60670-22:2006 (E)3.101.3cord outlet connecting boxconnecting box allowing one or more connections to be made between a fixed installation anda flexible cable3.102connecting

31、box with integral clamping unitsconnecting box in which clamping units are permanently retained as an integral part of thebox (see Annex AA)3.103connecting box with incorporated terminals or connecting devicesconnecting box with detachable terminals or connecting devices retained within the box byme

32、chanical means (see Annex AA)3.104connecting box with provisions for subsequent incorporation of terminals orconnecting devicesconnecting box with provisions for incorporating terminals or connecting devices to beretained within the box by mechanical means (see Annex AA)3.105connecting box for float

33、ing terminals or connecting devicesconnecting box intended to accommodate terminals or connecting devices but without provisionto retain them (see Annex AA)3.106rated connecting capacitycross-sectional area of the largest conductors as declared by the manufacturer3.107terminal3.108clamping unitpart(

34、s) of a terminal necessary for the mechanical clamping and the electrical connection ofthe conductor(s) including the parts which are necessary to ensure correct contact pressure3.109connecting devicedevice for the electrical connection of two or more conductors comprising one or moreterminals and i

35、f necessary, insulation and/or ancillary parts4 General requirements5 General notes on testsThis clause of Part 1 applies with the following addition: 6 conductive part of one pole comprising one or more clamping unit(s) and insulation if necessary This clause of Part 1 is applicable with the follow

36、ing addition: Terminals and connecting devices incorporated in connecting boxes shall comply with the requirements of the EN 60998 series; integrated clamping units shall comply with the requirements of the EN 60999 series. BS EN 60670-22:2006EN 60670-22:2006 (E)5.2 Add at the end:Connecting boxes w

37、ith provision for subsequent incorporation of terminals or connectingdevices are tested with the terminals or connecting devices recommended by themanufacturer.6 RatingsThis clause of Part 1 is replaced by:6.2 The standard rated connecting capacities are 0,2 mm2, 0,34 mm2, 0,5 mm2, 0,75 mm2,1 mm2, 1

38、,5 mm2, 2,5 mm2, 4 mm2, 6 mm2, 10 mm2, 16 mm2, 25 mm2, 35 mm2.7 ClassificationThis clause of Part 1 applies with the following addition:Add the following:7.101.1 With integrated clamping units7.101.2 With incorporated terminals orconnecting devices7.101.3 With provisions for subsequentincorporation

39、of terminals or connectingdevices7.101 The method of fixing theterminals or connecting devicesin the connecting box7.101.4 Without fixing (for floatingterminals or connecting devices)8 MarkingThis clause of Part 1 applies with the following additions:8.1 Add after j):k) rated insulation voltage for

40、boxes with integrated or incorporated terminals or connectingdevices (see note 1),l) rated connecting capacity (see notes 1 and 2),m) maximum number of conductors to be placed in the box (see notes 1 and 2).NOTE 1 In the case of: integrated clamping units, k) and l) should be marked on the boxes, in

41、corporated terminals or connecting devices, the marking k) and l) if marked on the box or on theincorporated terminals or connecting devices, should be visible during installation, empty boxes for floating terminals or connecting devices classified according to 7.101.4, the marking l)and m), if mark

42、ed on the box, should be visible during installation. 7 6.1 The preferred values of the rated voltage of the integrated or incorporated connecting devices are 250 V, 300 V, 400 V, 500 V, 600 V, 690 V, 800 V, 1 000 V a.c. and 1 500 V d.c. Text deleted The information l) and m) are optional for boxes

43、classified according to 7.101.4. BS EN 60670-22:2006EN 60670-22:2006 (E)NOTE 2 The manufacturer may mark or declare more than one combination of l) and m). This information ismandatory for boxes classified according to 7.101.4 in the following countries: DE and SE.Add the following subclause:8.101 W

44、hen symbols are used they shall be as follows:Volt VRated connecting capacity . mm2or 9 DimensionsThis clause of Part 1 applies.10 Protection against electric shockThis clause of Part 1 applies.11 Provision for earthingThis clause of Part 1 applies.12 ConstructionThis clause of Part 1 applies with t

45、he following modifications:12.1 Add after the first paragraph:In connecting boxes where the fixing means of covers or cover-plates serve also to fix theconnecting device, it shall maintain the connecting device in the correct position after removalof the cover or cover-plate.Compliance is checked by

46、 inspection.Add the following subclauses:12.101 Connecting boxes shall have adequate space to allow the correct connection ofconductors which are specified in the relevant sections of the particular requirements ofParts 2 of IEC 60998, concerning the number and cross-sectional area of the conductors

47、.Compliance is checked by fitting the maximum number of conductors of the maximum cross-sectional area if it is the worst case. If not, the most unfavourable combination shall bechecked.This test shall be carried out in conjunction with that of 12.102.For boxes classified according to 7.101.4 the te

48、st is made only if l) and m) of 8.1 are markedor declared. 8 BS EN 60670-22:2006EN 60670-22:2006 (E)12.102 Retention means for terminals or connecting devices shall withstand the mechanicalstresses occurring during installation and normal use.Compliance is checked by connecting conductors in accorda

49、nce with the relevant Part(s) 2 ofIEC 60998 for the type of the connecting device used.After the test there shall be no harmful deformation, cracks or similar damage which wouldlead to non-compliance with this part.12.103 Connecting boxes classified according to 7.101.1, 7.101.2 and 7.101.3 shall complywith the temperature rise requirements of Clause 16.102.13 Resistance to ageing, protection against ingress of solid objects andagainst harmful ingress of waterThis clause of Part 1 applies with the foll