General household switches should be installed 1.3–1.4 m above the finished floor.
Pull-cord switches should be installed 2 m above the finished floor.
Surface-mounted sockets should be installed 1.3–1.5 m above the finished floor.
Flush-mounted sockets should be installed 0.2–0.3 m above the finished floor.
Indoor pendant lights should generally be installed more than 2.5 m above the finished floor. Under specified conditions, this height may be reduced to 2.2 m.
Outdoor lighting fixtures should generally be installed at least 3 m above ground level.
Outdoor wall lights should be installed at least 2.5 m above ground level.
The referenced national standard requires a socket at approximately 3.6 m. [Clarify whether this measurement refers to installation height, spacing, or another requirement.]
The original wiring description specifies neutral on the left and live on the right for horizontally arranged two-pin sockets, and neutral below and live above for vertically arranged sockets. For three-pin sockets, it specifies neutral on the left, live on the right, and an earth connection to the designated earth terminal. The applicable socket standard and viewing orientation must be confirmed.
After indoor wiring work is completed, the insulation resistance to earth should be at least 0.5 MΩ.
The referenced residential design code requires incoming supply conductors for each dwelling to have a cross-sectional area of at least 10 mm².
General lighting switches should interrupt the live conductor.
When purchasing a power socket, check its safety features, including surge protection, flame resistance, and overload protection, where applicable. Avoid products without clear manufacturer identification, specifications, or required compliance information. Ensure that the voltage and current ratings are suitable for the intended electrical supply and connected load.
For household electrical safety, the original text recommends installing a residual current device (RCD) downstream of the electricity meter. Its rating, type, and installation arrangement must be determined according to the applicable requirements.
Position switches and sockets according to practical needs. For example, exhaust fan switches and telephone sockets intended for use near the toilet should be conveniently located for their intended use, rather than automatically placed at the bathroom entrance.