Requirements for couplers with particular reference to safety and interchangeability. Suitable for connection to Class II portable appliances, indoor and outdoor use at voltages not exceeding 250 V at 50 Hz. Weather-resistant to IPX4.
BS 6991:1990 history
0000 BS 6991:1990(1998)
1990BS 6991:1990 Specification for 6/10 A, two-pole weather-resistant couplers for household, commercial and light industrial equipment