1、 IEC 60670-1 Edition 2.0 2015-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Boxes and enclosures for electrical accessories for household and similar fixed electrical installations Part 1: General requirements Botes et enveloppes pour appareillage lectrique pour installations lectriques fixes pour
2、usages domestiques et analogues Partie 1: Exigences gnrales IEC 60670-1:2015-03(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2015 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any mean
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20、sures for electrical accessories for household and similar fixed electrical installations Part 1: General requirements Botes et enveloppes pour appareillage lectrique pour installations lectriques fixes pour usages domestiques et analogues Partie 1: Exigences gnrales INTERNATIONAL ELECTROTECHNICAL C
21、OMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 29.120.10 ISBN 978-2-8322-2337-6 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distr
22、ibutor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 IEC 60670-1:2015 IEC 2015 CONTENTS FOREWORD . 5 1 Scope 7 2 Normative references 7 3 Terms and definitions 8 4 General requirements 11 5 General notes on tests 11 6 Ratings 11 7 Classification
23、. 12 8 Marking . 13 9 Dimensions 14 10 Protection against electric shock . 14 11 Provision for earthing 15 11.1 Boxes and enclosures with exposed conductive parts . 15 11.2 Boxes and enclosures of insulating material classified according to 7.2.2.2 and 7.2.2.3 . 16 11.3 Boxes or enclosures with remo
24、vable sides according to 7.1.2 . 17 11.4 Earthing terminal threads 17 12 Construction 18 12.1 General . 18 12.2 Lids, covers or cover-plates or parts of them . 18 12.2.1 General . 18 12.2.2 Screw-type fixing . 18 12.2.3 Non-screw-type fixing operable without the use of a tool or a key 18 12.2.4 Non
25、screw-type fixing operable with the use of a tool or a key . 24 12.3 Drain holes . 25 12.4 Mounting of enclosures . 25 12.5 Boxes and enclosures with inlets for flexible cables 25 12.6 Boxes and enclosures with inlets for applications other than flexible cables 25 12.7 Boxes and enclosures with a ca
26、ble anchorage(s) 26 12.8 Boxes and enclosures with cable retention means 27 12.9 Knock-outs intended to be removed by mechanical impact 28 12.9.1 General . 28 12.9.2 Knock-out retention . 28 12.9.3 Knock-out removal . 28 12.9.4 Flat surfaces surrounding knock-outs 29 12.10 Screw fixings 29 12.11 Fix
27、ing of boxes and enclosures classified according to 7.2.1 . 30 12.12 Fixing of flush type and semi-flush type boxes and enclosures classified according to 7.2.2.1 33 12.13 Boxes and enclosures classified according to 7.2.2.2 and 7.2.2.3 . 34 12.13.1 General . 34 12.13.2 Boxes intended for mounting o
28、n a wood structural member of a wall . 35 12.13.3 Boxes intended for mounting to a wooden structural member of a ceiling . 35 12.13.4 Boxes intended for mounting to a steel-stud structural member of a wall . 35 IEC 60670-1:2015 IEC 2015 3 12.13.5 Internal volume of boxes and enclosures classified ac
29、cording to 7.2.2.2 and 7.2.2.3 36 12.13.6 Boxes intended for mounting in a finished structure . 37 12.14 Cable gland entry 37 12.15 Boxes and enclosures with inlets (outlets) or spouts (hubs) for conduits . 38 12.16 Internal volume of boxes and enclosures 38 13 Resistance to ageing, protection again
30、st ingress of solid objects and against harmful ingress of water 39 13.1 Resistance to ageing 39 13.2 Protection against the ingress of solid objects . 41 13.3 Protection against harmful ingress of water . 42 14 Insulation resistance and electric strength . 47 15 Mechanical strength 49 15.1 General
31、. 49 15.2 Impact test at low temperature 49 15.3 Compression test 50 15.4 Impact test for boxes and enclosures 51 15.5 Compression test for enclosures made of natural or synthetic rubber or a mixture of both 56 16 Resistance to heat . 58 16.1 Parts of insulating material necessary to retain current-
32、carrying parts . 58 16.2 Parts of insulating material not necessary to retain current-carrying parts . 59 16.3 Boxes and enclosures of insulating materials classified according to 7.2.2.2 or 7.2.2.3 59 16.3.1 Mechanical strength. 59 16.3.2 Parts of insulating material necessary to retain parts of th
33、e earthing circuit 60 17 Creepage distances, clearances and distances through sealing compound 60 18 Resistance of insulating material to abnormal heat and fire . 61 19 Resistance to tracking . 63 20 Resistance to corrosion . 63 21 Electromagnetic compatibility (EMC) . 63 Annex A (informative) Examp
34、les of enclosures and parts thereof . 64 Bibliography 65 Figure 1 Examples of membranes and grommets . 10 Figure 2 Demonstration of the non-penetration of the internal volume 15 Figure 3 Earthing strap 16 Figure 4 Test strap . 17 Figure 5 Arrangement for test on covers or cover-plates (see 12.2.3.2
35、and 12.2.3.3) 20 Figure 6 Gauge for the verification of the outline of lids, covers or cover-plates 21 Figure 7 Examples of application of the gauge of Figure 6 on covers fixed without screws on a mounting surface or supporting surface . 22 Figure 8 Compliance criteria of application of the gauge of
36、 Figure 6 23 Figure 9 Gauge for verification of grooves, holes and reverse tapers 24 Figure 10 Sketch showing the direction of application of the gauge of Figure 9 . 24 Figure 11 Apparatus for testing the cable anchorage . 27 4 IEC 60670-1:2015 IEC 2015 Figure 12 Example of mounting block for boxes
37、to be embedded in masonry (flush type and semi-flush type) 32 Figure 13 Example of the fixing of the auxiliary device mounted on a specimen 32 Figure 14 Example of test apparatus for the test 33 Figure 15 Verification of fixing means for boxes and enclosures classified according to 7.2.2.1 34 Figure
38、 16 Test of the force and measurement of the displacement . 36 Figure 17 Volume measurement. 39 Figure 18 Reference surfaces for boxes and enclosures 43 Figure 19 Test wall 45 Figure 20 Example of the protected volume . 47 Figure 21 Apparatus for impact test at low temperature 50 Figure 22 Mounting
39、block for flush-type boxes and enclosures in order to apply blows on the rear surface 52 Figure 23 Sequence of blows for parts A, B, C, D, E, F and G 55 Figure 24 Test devices for load compression test for enclosures made of natural or synthetic rubber or a mixture of both. 58 Figure 25 Rigid crossb
40、ar 60 Figure 26 Diagrammatic representation of the glow-wire test 62 Figure A.1 Examples of enclosures and parts thereof. 64 Table 1 Classification of boxes and enclosures (1 of 2) 12 Table 2 Forces to be applied to lids, covers, cover-plates or actuating members whose fixing is not dependent on scr
41、ews 19 Table 3 Forces and torques to be applied to cable anchorages 26 Table 4 Tightening torques for the verification of the mechanical strength of screws 30 Table 5 Torque test values for cable glands . 38 Table 6 Test voltage for electric strength test . 48 Table 7 Determination of parts A, B, C,
42、 D E, F and G . 52 Table 8 Height of fall for impact test . 53 IEC 60670-1:2015 IEC 2015 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ BOXES AND ENCLOSURES FOR ELECTRICAL ACCESSORIES FOR HOUSEHOLD AND SIMILAR FIXED ELECTRICAL INSTALLATIONS Part 1: General requirements FOREWORD 1) The International E
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