IEC TS 63236-1:2021

Direct current (DC) appliance couplers for information and communication technology (ICT) equipment installed in data centres and telecom central offices - Part 1: 2,6 kW system

IEC TS 63236-1:2021(E) applies to DC appliance couplers for class I equipment with two active contacts plus an earthing contact, a rated power of 2,6 kW and a rated voltage range from 294 V to 400 V DC. They are intended to power DC information and communication technology equipment only, as specified in IEC 62368‑1.

General Information

• Status: Published
• Publication Date: 24-Jun-2021
• ICS: 29.120.01 - Electrical accessories in general
• ICS: 29.120.30 - Plugs, socket-outlets, couplers
• Technical Committee: TC 23 - Electrical accessories
• Current Stage: PPUB - Publication issued
• Start Date: 27-Jul-2021
• Completion Date: 25-Jun-2021

Standards Content (Sample)

IEC TS 63236-1 ®
Edition 1.0 2021-06
TECHNICAL
SPECIFICATION
Direct current (DC) appliance couplers for information and communication
technology (ICT) equipment installed in data centres and telecom central
offices –
Part 1: 2,6 kW system
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IEC TS 63236-1 ®
Edition 1.0 2021-06
TECHNICAL
SPECIFICATION
Direct current (DC) appliance couplers for information and communication

technology (ICT) equipment installed in data centres and telecom central

offices –
Part 1: 2,6 kW system
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.120.01, 29.120.30 ISBN 978-2-8322-9927-2

– 2 – IEC TS 63236-1:2021 © IEC 2021
CONTENTS
FOREWORD . 6
1 Scope . 8
2 Normative references . 9
3 Terms and definitions . 10
4 General requirements . 13
5 General notes on tests . 14
5.1 General . 14
5.2 Test samples . 14
5.3 Failures . 14
5.4 Routine tests. 14
5.5 Test voltages . 15
5.6 Grouping of samples . 15
6 Standard ratings . 15
7 Classification of appliance couplers . 15
8 Marking . 15
8.1 General . 15
8.2 Additional markings . 15
8.3 Symbols or alphanumeric notations . 16
8.4 Legibility of markings . 16
8.5 Terminal markings and wiring instructions . 16
8.6 Durability . 17
8.7 Test and inspection . 17
9 Dimensions and compatibility . 17
9.1 General . 17
9.2 Single‐pole connections . 17
9.3 Compatibility . 17
9.4 Dimensions for appliance couplers . 17
10 Protection against electric shock . 18
10.1 Accessibility of live parts . 18
10.2 Protection against single pole connection . 18
10.3 Protection against access to live parts . 18
10.4 External parts . 18
10.5 Shrouds . 18
11 Provision for earthing . 19
12 Terminals and terminations . 19
12.1 General . 19
12.2 Rewirable appliance couplers . 19
12.3 Non‐rewirable appliance couplers . 19
13 Construction . 20
13.1 Risk of accidental contact . 20
13.2 Parts covering live parts . 20
13.3 Pin construction . 20
13.3.1 Prevention of rotation . 20
13.3.2 Pin retention . 20
13.3.3 Hollow pins . 20

13.4 Contact pressure . 21
13.5 Enclosure . 21
13.5.1 General . 21
13.5.2 Rewirable connectors . 21
13.5.3 Non-rewirable connectors . 21
13.6 Earth connection . 22
13.7 Location of terminals and terminations . 22
13.7.1 General . 22
13.7.2 Free wire test for rewirable accessories . 22
13.7.3 Free wire test for non-rewirable non-moulded-on accessories . 23
13.7.4 Free wire verification for non-rewirable moulded-on accessories . 23
14 Insulation resistance and electric strength . 23
14.1 General . 23
14.2 Insulation resistance . 24
14.3 Dielectric strength . 24
15 Forces necessary to insert and to withdraw the connector . 24
15.1 General . 24
15.2 Verification of the maximum withdrawal force . 25
15.3 Verification of the minimum withdrawal force . 26
16 Operation of contacts . 26
17 Resistance to heating of appliance couplers . 26
17.1 General . 26
17.2 Heating test for connectors . 26
17.3 Heating test for appliance inlets . 27
18 Breaking capacity . 27
19 Normal operation . 29
20 Temperature rise . 29
21 Cords and their connection . 30
21.1 Cords for non-rewirable connectors . 30
21.2 Cable anchorage . 31
21.2.1 General . 31
21.2.2 Additional requirements for rewirable connectors . 31
21.2.3 Pull test for cable anchorage . 31
21.3 Flexing test . 33
22 Mechanical strength . 35
22.1 General . 35
22.2 Free fall test . 35
22.3 Lateral pull test for contacts . 36
22.4 Impact test . 38
22.5 Pull tests for connectors with a separate front part . 38
22.5.1 General . 38
22.5.2 Straight pull test . 38
22.5.3 Lateral pull test . 38
23 Resistance to heat and ageing. 39
23.1 Resistance to heat . 39
23.2 Resistance to ageing . 39
23.2.1 General . 39
...