10.1.1 Compliance shall be checked by inspection and the following:
b) for metal parts connected to an earthing terminal or earthing plug pin, by the following test.
A Current of 25 A ± 0.75A, derived from an a.c. source having a no-load voltage not exceeding 12 V, is passed for 60s between the remote end of the protective conductor of a 3-core flexible cord and the remote end of the earthing plug pin and any accessible metal part intended to be earthed, taking account of the following:
1) for non-rewirable plugs, the manufacturer's connection is tested as supplied
2) for rewirable plugs, 1.25 mm² flexible cord complying with Table 27 of BS 6500:2000 shall be used:
i) for screw type terminals the clamping screw shall be tightened with a torque equal to two-thirds of the appropriate value given in Table 3;
ii) for clamp-type (screwless) terminals the connection shall be made in accordance with the manufacturer's instructions.
The resistance between the earthing terminal or termination and any other nominated metal part shall not exceed 0.05 Ω.