Standards

This standard specifies attachment fused and unfused plugs (caps), shuttered receptacles (sockets) for flush surface mounting. These plugs and sockets are suitable for alternating current circuits only of voltages not exceeding 250 volts and currents not exceeding 15 amperes.  The plugs and receptacles covered by this standard are intended for use in making readily detachable electrical connections in non-hazardous locations between supply circuits and portable lamps, appliances and similar equipment.

This standards covers thermoplastic and rubber tapes for use as electrical insulation at not more than 600 V and at 80C (176 F) and lower temperatures on joints and splices in wires and cables in accordance with the National Electrical Code. It is intended that rubber tape on a joint or splice be mechanically protected by a covering such as friction tape . Thermoplastic tape is acceptable without the additional mechanical protection.

This British Standard specifies requirements for the construction dimensions and mechanical and electrical properties of non- armoured polyvinyl chloride (PVC) insulated cables for operation at voltages up to and including 450 V a.c. to earth and 750 V a.c between conductors, intended for electric power lighting and internal wiring.

This standard specifies requirements for gas-insulated, metal-enclosed switchgear in which the insulation is obtained, at least partly , by an insulting gas other than air at atmospheric pressure, for alternating current of rated voltage above 52 kV, for indoor and outdoor installation, and for services frequencies up to and including 60 Hz.