1、BSI Standards PublicationDirect current (DC) plugs and socket-outlets for information and communication technology(ICT) equipment installed in data centres and telecom central officesPart 1: Plug and socket-outlet system for 2,6 kWPD IEC/TS 62735-1:2015National forewordThis Published Document is the
2、 UK implementation of IEC/TS 62735-1:2015.The UK participation in its preparation was entrusted to TechnicalCommittee PEL/23, Electrical accessories.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the n
3、ecessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 75800 3ICS 29.120.01; 29.120.30Compliance with a British Standard cannot confer immunity fromlegal obligations.This Publis
4、hed Document was published under the authority of theStandards Policy and Strategy Committee on 30 September 2015.Amendments/corrigenda issued since publicationDate Text affectedPUBLISHED DOCUMENTPD IEC/TS 62735-1:2015IEC TS 62735-1 Edition 1.0 2015-08 TECHNICAL SPECIFICATIONDirect current (DC) plug
5、s and socket-outlets for information and communication technology (ICT) equipment installed in data centres and telecom central officesPart 1: Plug and socket-outlet system for 2,6 kWINTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 29.120; 29.120.30 ISBN 978-2-8322-2869-2 Registered trademark of the In
6、ternational Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. colourinsidePD IEC/TS 62735-1:2015 2 IEC TS 62735-1:2015 IEC 2015 CONTENTS FOREW ORD. 61 Scope 8 2 Normative references 93 Terms and definitions 10 4 General requirements 145
7、 General notes on tests 14 6 Ratings167 Classification . 16 7.1 Accessory classifications 167.1.1 Classification according to the method of connecting the cable 16 7.1.2 Classification according to the type of terminals 16 7.2 Socket-outlet classifications 16 7.2.1 Classification according to the de
8、gree of protection against electric shock . 16 7.2.2 Classification according to the existence of shutters 167.2.3 Classification according to the method of application/ mounting of the socket-outlet 16 7.2.4 Classification according to the method of installation . 17 8 Marking . 17 8.1 General . 17
9、 8.2 Symbols 17 8.3 Visibility of markings . 18 8.4 Marking for plugs 18 8.5 Marking of terminals . 18 8.6 Durability of marking .199 Checking of dimensions . 19 10 Protection against electric shock . 19 11 Provision for earthing 22 12 Terminals and terminations 23 12.1 General . 23 12.2 Terminals w
10、ith screw clamping for external copper conductors . 24 12.3 Screwless terminals for external copper conductors 29 12.4 Flat quick-connect terminations . 35 12.4.1 General . 35 12.4.2 Constructional requirements 3512.4.3 Electrical requirements 36 12.5 Permanent connections. 36 13 Construction of soc
11、ket-outlets . 36 14 Construction of plugs.4315 Interlocked socket-outlets 48 16 Resistance to ageing, protection provided by enclosures, and resistance to humidity . 48 16.1 Resistance to ageing 48 16.2 Protection provided by enclosures 49 16.2.1 General .49PD IEC/TS 62735-1:2015IEC TS 62735-1:2015
12、IEC 2015 3 16.2.2 Protection against access to hazardous parts and against harmful effects due to ingress of solid foreign objects 49 16.3 Resistance to humidity 50 17 Insulation resistance and electric strength . 51 18 Operation of earthing contacts . 52 19 Temperature rise . 53 20 Breaking capacit
13、y 56 21 Normal operation . 57 22 Force necessary to withdraw the plug 58 22.1 General . 58 22.2 Verification of the maximum withdrawal force for socket-outlets 59 22.3 Verification of the minimum withdrawal force . 59 23 Flexible cables and their connection 60 24 Mechanical strength 63 25 Resistance
14、 to heat . 72 26 Screws, current-carrying parts and connections . 73 27 Creepage distances, clearances and distances through sealing compound 75 28 Resistance of insulating material to abnormal heat and to fire . 77 29 Resistance to rusting . 78 Annex A (normative) Safety-related routine tests for f
15、actory-wired accessories (protection against electric shock and correct polarity) 107 A.1 General remarks . 107 A.2 Polarized systems, “+” and “” correct connection 107 A.3 Earth continuity . 108 A.4 Short-circuit/ wrong connection and reduction of creepage distance and clearances between “+” and “”
16、 to earth ( ) . 108 Annex B (normative) Survey of specimens needed for tests . 109 Annex C (informative) Alternative gripping tests . 110 C.1 Gripping test C1 110 C.2 Gripping test C2 112 Annex D (normative) Standard sheets and gauges . 114 D.1 Standard sheets 114 D.2 Gauges for checking the dimensi
17、ons of the entry holes . 118 Bibliography 121 Figure 1 Examples of accessories 80 Figure 2 Pillar terminals . 81 Figure 3 Screw terminals and stud terminals 82 Figure 4 Saddle terminals 83 Figure 5 Mantle terminals. 84 Figure 6 Example of thread-forming screw . 84 Figure 7 Example of thread-cutting
18、screw 84 Figure 8 Arrangement for compression test of 10.2 and 24.6 . 85 Figure 9 Gauge for checking non-accessibility of live parts, through shutters . 86 Figure 10 Gauge for checking non-accessibility of live parts, through shutters, and of live parts of socket-outlets with increased protection. 8
19、7 PD IEC/TS 62735-1:2015 4 IEC TS 62735-1:2015 IEC 2015 Figure 11 Arrangement for checking damage to conductors . 88 Figure 12 Information for deflection test . 89 Figure 13 Device for checking the resistance to lateral strain . 90 Figure 14 Example of apparatus for breaking capacity and normal oper
20、ation test 91 Figure 15 Circuit diagram for breaking capacity and normal operation tests 92 Figure 16 Apparatus for verification of maximum withdrawal force . 92 Figure 17 Apparatus for testing cord retention 93 Figure 18 Apparatus for flexing test . 94 Figure 19 Sketches showing the application of
21、the blows according to Table 20. 95 Figure 20 Apparatus for impact test at low temperature of 24.5 96 Figure 21 Example of test arrangement to verify the fixation of pins in the body of the plug 97 Figure 22 Arrangement for test on covers or cover-plates 97 Figure 23 Gauge (thickness about 2 mm) for
22、 the verification of the outline of covers or cover-plates 98 Figure 24 Examples of application of the gauge of Figure 23 on covers fixed without screws on a mounting surface or supporting surface . 99 Figure 25 Examples of application of the gauge of Figure 23 in accordance with the requirements of
23、 24.16 . 100 Figure 26 Gauge for verification of grooves, holes and reverse tapers . 101 Figure 27 Sketch showing the direction of application of the gauge of Figure 26 101 Figure 28 Ball pressure test apparatus . 101 Figure 29 Apparatus for compression test for the verification of resistance to hea
24、t of 25.5 102 Figure 30 Test procedures for normal operation (see Clause 21) . 103 Figure 31 Clamping unit for the temperature rise test of Clause 19 104 Figure 32 The profile of the inrush current for the test of Clause 20 . 105 Figure 33 Annex to Figure 32 with additional information on a possible
25、 circuit to produce the inrush current as given in Figure 32 . 105 Figure 34 Circuit diagram for testing socket-outlets and plugs according to 18.2 106 Figure 35 Possible test setup for the temperature rise test for Clauses 19 and 21 106 Figure C.1 Reference plug for gripping test 111 Figure C.2 Exa
26、mple of the test apparatus for plug gripping test . 112 Figure D.1 Standard sheet 1: 2,6 kW / 294 V to 400 V d.c. socket-outlet for class I equipment . 115 Figure D.2 Standard sheet 2: 2,6 kW / 294 V to 400 V d.c. plug for class I equipment 116 Figure D.3 Standard sheet 3: positioning of the “+” and
27、 “” pins/socket-contacts . 117 Figure D.4 Minimum gauges for checking the dimensions of the entry holes: C1 118 Figure D.5 Maximum gauges for checking the dimensions of the entry holes: C2 . 118 Figure D.6 Gauge for checking the first point of contact: C3 . 119 Figure D.7 Gauges for checking the min
28、imum withdrawal force (see 22.3) . 119 Figure D.8 Gauge for checking the maximum withdrawal force: C4max (see 22.2) . 120 Table 1 Relationship between rated power and connectable nominal cross-sectional areas or American W ire Gauge (AW G) size of copper conductors . 24 Table 2 Values for pull test
29、for screw-type terminals 26 PD IEC/TS 62735-1:2015IEC TS 62735-1:2015 IEC 2015 5 Table 3 Composition of conductors 27 Table 4 Tightening torques for the verification of the mechanical strength of screw-type terminals . 28 Table 5 Relationship between rated power and connectable cross-sectional areas
30、 or AW G size of copper conductors for screwless terminals . 30 Table 6 Value for pull test for screwless-type terminals 32 Table 7 Values for flexing under mechanical load test for copper conductors 32 Table 8 Test current for the verification of electrical and thermal stresses in normal use for sc
31、rewless terminals . 33 Table 9 Nominal cross-sectional areas or AW G size of rigid copper conductors for deflection test of screwless terminals 34 Table 10 Deflection test forces . 35 Table 11 Forces to be applied to tabs 36 Table 12 Relationship between tab size and maximum current . 36 Table 13 Fo
32、rces to be applied to covers, cover-plates or actuating members whose fixing is not dependent on screws . 38 Table 14 External cable dimension limits for surface-type socket-outlets . 40 Table 15 Nominal cross-sectional areas of copper conductors and test currents for the temperature rise test . 54
33、Table 16 Maximum and minimum withdrawal force for plugs and socket-outlets . 60 Table 17 External dimensions of flexible cables to be accommodated by cord anchorages . 60 Table 18 Torque test values for cord anchorages . 61 Table 19 Maximum dimensions of flexible cables to be accommodated in rewirab
34、le accessories 62 Table 20 Height of fall for impact tests . 65 Table 21 Torque test values for glands 68 Table 22 Resistance to heat of different types or parts of accessories . 72 Table 23 Creepage distances, clearances and distances through insulating sealing compound . 76 Table B.1 Number of spe
35、cimens needed for the tests according to 5.5 . 109 PD IEC/TS 62735-1:2015 6 IEC TS 62735-1:2015 IEC 2015 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ _ _ _ _ _ _ _ _ _ _ _ DIRECT CURRENT (DC) PLUGS AND SOCK ET-OUTLETS FOR INFORMATION AND COMMUNICATION TECHNOLOGY (ICT) EQ UIPMENT INSTALLED IN DATA CEN
36、TRES AND TELECOM CENTRAL OFFICES Part 1: Plug and socket-outlet system for 2,6 kW FOREW ORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to pr
37、omote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guide
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41、W hile all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undert
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43、tation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition o
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45、r indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable
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47、is to prepare International Standards. In exceptional circumstances, a technical committee may propose the publication of a Technical Specification when the required support cannot be obtained for the publication of an International Standard, despite repeated efforts, or the subject is still under t
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49、 IEC TS 62735-1, which is a Technical Specification, has been prepared by IEC technical committee 23: Electrical accessories. PD IEC/TS 62735-1:2015IEC TS 62735-1:2015 IEC 2015 7 In this standard, the following print types are used: compliance statements: in italic type The text of this Technical Specification is based on the following documents: Enquiry draft Report on voting 23/ 692/ DTS 23/ 708
