Electrical Installation

The electrical installation process involves setting up an electrical system that safely distributes power to a building or site. This process must comply with local electrical codes and usually includes the following key stages:

Planning and Design

  • Assess power needs (lighting, outlets, appliances, machinery).
  • Create electrical schematics and layouts (single-line diagrams, wiring plans).
  • Choose materials: cables, circuit breakers, panels, switches, etc.
  • Consider safety regulations and code compliance.

First Fix (Rough-In)

  • Install conduits, cable trays, or trunking.
  • Run electrical cables or wires through walls, floors, or ceilings.
  • Mount back boxes for switches, outlets, and fixtures.
  • Install the main distribution board or panel.

Second Fix (Final Wiring & Devices)

  • Connect outlets, switches, and light fixtures.
  • Install circuit breakers and connect wires to the panel.
  • Label circuits clearly for easy identification.

Testing and Inspection

  • Perform continuity tests, insulation resistance, and earth (ground) testing.
  • Verify correct polarity, circuit load, and voltage levels.
  • Schedule inspection by an authorized electrical inspector.

Commissioning and Handover

  • Turn on the power and verify that all systems function as intended.
  • Provide documentation, including test certificates and as-built drawings.
  • Handover to the client or building owner.