By British Standards Institution
Read or Download 13 A Plugs, Socket-outlets and Adaptors: Specification for 13 A Switched and Unswitched Socket-outlets BS 1363 PDF
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Additional info for 13 A Plugs, Socket-outlets and Adaptors: Specification for 13 A Switched and Unswitched Socket-outlets BS 1363
Details are shown in Figure 30. 2 A flowing through the flexible cord attached to the plug. c. supply is connected to the resistor and the voltage adjusted until the temperature rise on the plug-pin spacer stabilizes at 35 K ± 1 K. The value of the voltage applied to the resistor is noted. The calibration voltage is applied to the resistor when checking the temperature rise of a socket-outlet. 1. 5 If the associated clearance is less than 3 mm, the minimum groove width may be reduced to one third of this clearance.
1 Socket-outlets shall be resistant to heat. 3. Parts made from rubber or ceramics in fixed socket-outlets shall not be subjected to these tests. 2 For complete socket-outlets and for separate ancillary components specimens are kept for 60 +50 min in a heating cabinet maintained at the following temperature: a) 70 °C ± 5 °C for portable socket-outlets, mounting boxes, separate covers and separate cover plates; b) 100 °C ± 5 °C for all other socket-outlets. During the test they shall not undergo any change impairing their further use and the sealing compound shall not flow to such an extent that live parts are exposed.
The free end of the flexible cord which is approximately 2 250 mm long is fixed to a wall at a height 0 of 400 –10 mm above the floor, as shown in Figure 22. The specimen is held so that the cable is approximately horizontal and then it is allowed to fall on to a concrete floor eight times, the flexible cord being rotated through approximately 45° at its fixing each time. 4b) and Clause 15 and Clause 16. For the repeat test in accordance with Clause 16 the attached flexible cord is reduced to 1 000 mm ± 50 mm without disturbing the terminal connections.