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BSI PD IEC/TS 62735-2:2016:2017 Edition

BSI PD IEC/TS 62735-2:2016:2017 Edition

$142.49

Direct current (DC) plugs and socket-outlets for information and communication technology (ICT) equipment installed in data centres and telecom central offices – Plug and socket-outlet system for 5,2 kW

Published By Publication Date Number of Pages
BSI 2017 26
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This clause of Part 1 is applicable except as follows:

Replacement:

Replace the first paragraph with the following:

This part of IEC 62735, which is a technical specification, applies to plugs and fixed socketoutlets for class I equipment with two active contacts plus an earthing contact, a rated power of 5,2 kW and a rated voltage range from 294 V to 400 V d.c. They are intended to power d.c. information and communication technology equipment only.

The 2,6 kW system complying with Part 1 is safely compatible with the system complying with this part as it is possible to insert the 2,6 kW plug in the 5,2 kW socket-outlet but it is not possible to insert the 5,2 kW plug into the 2,6 kW socket-outlet.

Replace the third paragraph with the following:

The maximum current for the plug and the socket-outlet is

  • 13 A when the voltage between live contacts is 400 V d.c.

  • 17,6 A when the voltage between live contacts is 294 V d.c.

and can rise up to 20 A when the voltage between live contacts decreases to 260 V d.c. for 10 min maximum.

Replace, in the 6th paragraph, the second dash with:

  • an overcurrent protection (of 17,6 A or less for each socket-outlet or multiple socketoutlet),

PDF Catalog

PDF Pages PDF Title
4 CONTENTS
6 FOREWORD
8 1 Scope
2 Normative references
3 Terms and definitions
9 4 General requirements
5 General notes on tests
6 Ratings
7 Classification
8 Marking
10 9 Checking of dimensions
10 Protection against electric shock
11 Provision for earthing
12 Terminals and terminations
11 Tables
Table 1 – Relationship between rated power and connectablenominal cross-sectional areas or American Wire Gauge (AWG)size of copper conductors
Table 2 – Values for pull test for screw-type terminals
Table 3 – Composition of conductors for plugs
12 Table 5 – Relationship between rated power and connectable cross-sectional areasor AWG size of copper conductors for screwless terminals
Table 6 – Value for pull test for screwless-type terminals
Table 7 – Values for flexing under mechanical load test for copper conductors
Table 8 – Test current for the verification of electrical and thermal stressesin normal use for screwless terminals
13 13 Construction of socket-outlets
14 Construction of plugs
15 Interlocked socket-outlets
Table 9 – Nominal cross-sectional areas or AWG size of rigid copper conductors for deflection test of screwless terminals
Table 10 – Deflection test forces
Table 14 – External cable dimension limits for surface-type socket-outlets
14 15 Interlocked plug and socket-outlet systems
16 Resistance to ageing, protection provided by enclosures, and resistance to humidity
17 Insulation resistance and electric strength
15 18 Operation of earthing contacts
19 Temperature rise
Table 15 – Nominal cross-sectional areas of copper conductorsand test currents for the temperature rise test
16 20 Breaking capacity
21 Normal operation
22 Force necessary to withdraw the plug
17 23 Flexible cables and their connection
Table 16 – Maximum and minimum withdrawal force for plugs and socket-outlets
Table 17 – External dimensions of flexible cables to be accommodated by cord anchorages
Table 18 – Torque test values for cord anchorages
18 24 Mechanical strength
25 Resistance to heat
26 Screws, current-carrying parts and connections
27 Creepage distances, clearances and distances through sealing compound
28 Resistance of insulating material to abnormal heat and to fire
29 Resistance to rusting
Annexes
Table 19 – Maximum dimensions of flexible cables to be accommodated in rewirable accessories
19 Annex AA (normative) Standard sheets and gauges
20 Figures
Figure AA.1 – Standard sheet 4: 5,2 kW / 294 V to 400 V d.c.socket-outlet for class I equipment
21 Figure AA.2 – Standard sheet 5: 5,2 kW / 294 V to 400 V d.c. plug for class I equipment
22 Figure AA.3 – Standard sheet 6: positioning of the “+” and “−” pins/socket-contacts
23 Bibliography

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