What is an Electrical installation?

An electrical installation of cabling and associated devices such as switches, distribution boards, sockets, and light fittings in a structure.

Wiring is subject to safety standards for design and installation. Allowable wire and cable types and sizes are specified according to the circuit operating voltage and electric current capability, with further restrictions on the environmental conditions, such as ambient temperature range, moisture levels, and exposure to sunlight and chemicals.

Associated circuit protection, control and distribution devices within a building’s wiring system are subject to voltage, current and functional specification. Wiring safety codes vary by locality, country, or region. The International Electrotechnical Commission (IEC) is attempting to harmonize wiring standards amongst member countries, but significant variations in design and installation requirements still exist.

Types of AC Electrical Installations:

• Low voltage – 1V to 48V – Alternating current
• Medium voltage – 110V to 240V – Alternating current
• High Voltage – 330V to 1000V – Alternating current

Where does the Installations take place?

• Domestic – Normal house/ Flat/ RDP/ Qupong
• Industrial – Factories/ Large buildings/ Mall’s/ Shops/ Farms
• Distribution – Supply plants/ Mines/ Step up & Step-down transformers/ Overheads/ Rural and urban settlements