In Canada and the United States, the following applies. The mechanical strength of
finished jacketed two- or three-conductor 0.824 mm² (18 AWG) cords shall be such that
no conductor will break when subjected to a force caused by a mass of 68 kg (150lb) for
1 min.
For two- or three-conductor 1.04 mm2 (17 AWG) finished cords, no conductor shall
break when subjected to a force caused by a mass of 77 kg (170 lb) for 1 min.
Compliance shall be determined in accordance with the method described in
Clauses 5.1.4.2 to 5.1.4.5 or CSA C22.2 No. 0.3, Clause 4.17. The weight method shall
be considered the referee method.
In Mexico, the following applies. The mechanical strength test is not required.