ELECTRICAL INSTALLATION

1. Domestic (Residential) Electrical Installation

• Purpose: Supplies electricity to homes.

• Features:

  • Low voltage (typically 230V single-phase).

  • Supplies lighting, sockets, appliances (e.g., fridge, cooker).

  • Often uses PVC insulated cables in surface-mounted or concealed conduit.

• Examples: Wiring for lighting, power outlets, fans, and small appliances.

2. Commercial Electrical Installation

• Purpose: Powers offices, shops, schools, and other business premises.

• Features:

  • May use single-phase or three-phase systems.

  • Higher demand than domestic installations.

  • Includes emergency lighting, security systems, HVAC.

  • Cable management systems like trunking and ducting are common.

• Examples: Office lighting, computer networks, elevators, security alarms.

3. Industrial Electrical Installation

• Purpose: Supplies power to factories, plants, and manufacturing units.

• Features:

  • Uses high-voltage three-phase power systems (e.g., 400V and above).

  • Heavy-duty cabling, protection devices, motor controls.

  • Requires strict compliance with safety and regulatory standards.

• Examples: Machinery wiring, conveyor belts, heavy motors, PLCs.

4. Agricultural Electrical Installation

• Purpose: Serves farms and agricultural facilities.

• Features:

  • Weatherproof and rodent-resistant cabling.

  • Supplies water pumps, irrigation systems, cooling systems, and lighting.

• Examples: Barn lighting, electric fences, irrigation controls.

5. Temporary Electrical Installation

• Purpose: Provides power for short-term needs like events or construction sites.

• Features:

  • Portable generators, temporary distribution boards.

  • Emphasis on safety and ease of disconnection.

• Examples: Concerts, festivals, construction lighting.

6. Hazardous Area Installation

• Purpose: Installed in areas with explosive gases, vapors, or dust (e.g., oil refineries).

• Features:

  • Explosion-proof enclosures, flameproof wiring.

  • Strict adherence to international safety codes (e.g., ATEX, IECEx).

• Examples: Petrol stations, chemical plants.