[E-top industry knowledge, 20th November,2025]
Using an assembled British standard plug as an example, the test is conducted according to the BS1363 plug standard. Under load, the temperature of the copper pins should not exceed 37°C above room temperature (temperature after 4 hours of testing), i.e., a temperature rise of 37°C. The temperature of the live and neutral wires should not exceed 52°C above room temperature. If the temperature is within the specified range, the product is considered合格 (qualified); otherwise, it is (unqualified).
Using a 13A British standard plug fuse as an example, the test is conducted according to the BS1362 standard. The fuse tube rated to carry 1.9 times the current must blow within half an hour; the fuse tube rated to carry 1.6 times the current must not blow within half an hour.
