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BSI PD IEC TS 63236-1:2021

BSI PD IEC TS 63236-1:2021

$198.66

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

Published By Publication Date Number of Pages
BSI 2021 70
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This part of IEC 63236, which is a Technical Specification, 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.

The accessories according to this document are intended to be used by ordinary persons in data centres only where the value of the DC voltage distribution system is defined as follows:

  • 380 V with a tolerance of ±20 V for installations with no backup battery or with a voltage regulation system;

  • 380 V with a voltage range of 294 V to 400 V for installations with a backup battery where voltage regulation is not guaranteed;

  • the voltage value between each live conductor and earth does not exceed 200 V DC during normal operation;

  • there are two abnormal voltage ranges (duration below 10 min):

  • 260 V up to 294 V, and

  • above 400 V to 410 V.

The maximum current of the appliance couplers is

  • 6,5 A when the voltage between live contacts is 400 V DC,

  • 8,8 A when the voltage between live contacts is 294 V DC,

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

The voltage between live conductors can fall down to 260 V DC when the voltage discharge value of the battery reaches the disconnecting level. The consequence is that the current increases accordingly.

The accessories according to this document do not require maintenance.

The accessories according to this document are intended for use in circuits where

  • basic protection,

  • an overcurrent protection (of 8,8 A or less for each socket-outlet or multiple socket-outlet),

  • the fault protection (indirect contact protection), and

  • additional protection

are already assured.

Appliance couplers complying with this document are suitable for normal use at ambient temperatures not normally exceeding +60 °C, with a lower limit of the ambient air temperature of –5 °C.

Appliance couplers are not suitable for use in place of plug and socket-outlet systems according to the IEC TS 62735 series.

Appliance couplers according to this document are not intended to be used in portable accessories covered by IEC TC 23.

PDF Catalog

PDF Pages PDF Title
2 undefined
4 CONTENTS
8 FOREWORD
10 1 Scope
11 2 Normative references
12 3 Terms and definitions
Figures
Figure 1 – Intended use of appliance couplers
15 4 General requirements
16 5 General notes on tests
5.1 General
5.2 Test samples
5.3 Failures
5.4 Routine tests
17 5.5 Test voltages
5.6 Grouping of samples
6 Standard ratings
7 Classification of appliance couplers
8 Marking
8.1 General
8.2 Additional markings
18 8.3 Symbols or alphanumeric notations
8.4 Legibility of markings
8.5 Terminal markings and wiring instructions
19 8.6 Durability
8.7 Test and inspection
9 Dimensions and compatibility
9.1 General
9.2 Single‐pole connections
9.3 Compatibility
9.4 Dimensions for appliance couplers
20 10 Protection against electric shock
10.1 Accessibility of live parts
10.2 Protection against single pole connection
10.3 Protection against access to live parts
10.4 External parts
10.5 Shrouds
21 11 Provision for earthing
12 Terminals and terminations
12.1 General
12.2 Rewirable appliance couplers
12.3 Non‐rewirable appliance couplers
Tables
Table 1 – Relationship between rated power and nominal cross-sectional areas or American Wire Gauge (AWG) size of copper conductors
22 13 Construction
13.1 Risk of accidental contact
13.2 Parts covering live parts
13.3 Pin construction
13.3.1 Prevention of rotation
13.3.2 Pin retention
13.3.3 Hollow pins
23 13.4 Contact pressure
13.5 Enclosure
13.5.1 General
13.5.2 Rewirable connectors
13.5.3 Non-rewirable connectors
24 13.6 Earth connection
13.7 Location of terminals and terminations
13.7.1 General
13.7.2 Free wire test for rewirable accessories
25 13.7.3 Free wire test for non-rewirable non-moulded-on accessories
13.7.4 Free wire verification for non-rewirable moulded-on accessories
14 Insulation resistance and electric strength
14.1 General
26 14.2 Insulation resistance
14.3 Dielectric strength
15 Forces necessary to insert and to withdraw the connector
15.1 General
Table 2 – Maximum diameters of the cords
27 15.2 Verification of the maximum withdrawal force
Figure 2 – Apparatus for checking the withdrawal force
Table 3 – Maximum and minimum withdrawal forces
28 15.3 Verification of the minimum withdrawal force
16 Operation of contacts
17 Resistance to heating of appliance couplers
17.1 General
17.2 Heating test for connectors
29 17.3 Heating test for appliance inlets
18 Breaking capacity
30 Figure 3 – Circuit diagram for breaking capacity and normal operation tests
31 19 Normal operation
20 Temperature rise
32 21 Cords and their connections
21.1 Cords for non-rewirable connectors
Table 4 – Cords and conductors for the tests of Clause 20
Table 5 – Type and nominal cross-sectional area of cords
33 21.2 Cable anchorage
21.2.1 General
21.2.2 Additional requirements for rewirable connectors
21.2.3 Pull test for cable anchorage
34 Figure 4 – Apparatus for testing the cable anchorage
Table 6 – Types of cable for the rewirable connector test
35 21.3 Flexing test
36 Figure 5 – Apparatus for the flexing test
37 22 Mechanical strength
22.1 General
22.2 Free fall test
38 22.3 Lateral pull test for contacts
39 Figure 6 – Example of apparatus for pull test
40 22.4 Impact test
22.5 Pull tests for connectors with a separate front part
22.5.1 General
22.5.2 Straight pull test
22.5.3 Lateral pull test
Table 7 – Values for the lateral pulls applied
41 23 Resistance to heat and ageing
23.1 Resistance to heat
23.2 Resistance to ageing
23.2.1 General
23.2.2 Ageing test for elastomeric materials
Table 8 – Values for torque and pull forces
42 23.2.3 Ageing test for thermoplastic materials
23.2.4 Ageing test assessment
24 Screws, current-carrying parts and connections
24.1 General
43 24.2 Electrical connections
24.3 Securement of connections
Table 9 – Torque applied for the tightening and loosening test
44 24.4 Current-carrying parts
25 Creepage distances, clearances and distances through sealing compound
45 Table 10 – Creepage distances, clearances and distances throughinsulating sealing compound
46 26 Resistance of insulating material to heat, fire and tracking
26.1 Resistance to heat and fire
26.1.1 General
26.1.2 Object of the test
26.1.3 General description of the test
47 26.1.4 Degree of severity
26.1.5 Evaluation of test results
26.2 Resistance to tracking
27 Resistance to rusting
48 28 Electromagnetic compatibility (EMC) requirements
28.1 General
28.2 Immunity – Accessories not incorporating electronic components
28.3 Emission – Accessories not incorporating electronic components
49 Annex A (normative)Safety-related routine tests for factory-wired accessories(protection against electric shock and correct polarity)
A.1 General remarks
A.2 Polarized systems, “+” and “−” : Correct connection
50 A.3 Earth continuity
A.4 Short-circuit/wrong connection and reduction of creepage distance and clearances between “+” and “−” to earth
A.4.1 Accessible surface safety check
A.4.2 Short-circuit/wrong connection
51 Annex B (normative)Test schedule
Table B.1 – Test schedule
53 Annex C (informative)Alternative gripping tests
C.1 Gripping test C1
54 Figure C.1 – Reference gauge for gripping test
55 C.2 Gripping test C2
Figure C.2 – Example of the test apparatus for connector gripping test
56 Annex D (normative)Standard sheets and gauges
D.1 Standard sheets
58 Figure D.1 – Appliance inlet
59 Figure D.2 – Connector
60 D.2 Gauges
D.2.1 Distance to the point of first contact
Figure D.3 – Positioning of the “+” and “−” pins/connector-contacts
61 D.2.2 “GO” gauge for appliance inlets according to standard sheet 1 (Figure D.1)
Figure D.4 – Gauges for checking point of first contact
Table D.1 – Dimensions of contact gauge
62 D.2.3 “GO” gauge for connectors according to standard sheet 2 (Figure D.2)
Figure D.5 – “GO” gauge for appliance inlets according to standard sheet 1 (Figure D.1)
63 Figure D.6 – “GO” gauge for connectors according to standard sheet 2 (Figure D.2)
64 D.2.4 Gauge for checking the maximum withdrawal force (see 15.2)
Figure D.7 – Gauge representing the counterpart inletfor checking the maximum withdrawal force
65 D.2.5 Gauges for checking the minimum withdrawal force (see 15.3)
D.2.6 Position of switch cam of optional micro switches
Figure D.8 – Gauge for checking the minimum withdrawalforce for “+” and “-” socket-contact
Figure D.9 – Gauge for checking the minimumwithdrawal force for PE socket-contact
66 Figure D.10 – Area for positioning of actuator of optional micro switch
Figure D.11 – Minimum dimension of switch cam
67 Bibliography

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BSI PD IEC TS 63236-1:2021
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