What is Electrical Work? — Electrical Engineering and Electrical Services Fully Explained
Electrical work encompasses all work related to designing, installing, or maintaining electrical systems in buildings, vehicles, and factories. From wiring a new home to installing a distribution board, to fixing a sudden fault — all of this is electrical work requiring specialization and engineering knowledge. This guide explains the fundamental concepts for anyone who wants to understand what's being done in their home.
By the Ases Kahraba team — Last updated: March 2026
Quick Answer
Electrical work encompasses all work related to designing, installing, or maintaining electrical systems. It includes foundation work (routing cables in new structures), finishing (installing outlets and switches), and maintenance. Electrical engineering is the academic specialization that designs and supervises these systems.
Core Concepts in Electrical Work
- What is electrical work? — It includes all work related to: designing electrical systems (engineering), installing and routing cables and conduits (foundation/installation), installing outlets, switches, and fixtures (finishing), testing and documenting systems (inspection), and repairing faults and periodic maintenance.
- Main types of electrical work: Foundation (Ta'sees): placing conduits and pulling wires in new structures. Finishing (Tashteeb): installing outlets, switches, and connections. Maintenance: fault repair and upgrades. Emergency: immediate response to hazardous faults. Industrial: high-voltage and three-phase systems for factories.
- Electrical engineering — the concept: electrical engineering is the academic and professional specialization that studies electricity generation, transmission, distribution, and control. An electrical engineer designs systems, calculates loads, and supervises execution. Without an electrical engineer, there's no correct design — and many home faults stem from the absence of engineering supervision.
- Who performs electrical work? Electrician technician: executes routine and small tasks. Electrical engineer: designs and supervises projects. Electrical contractor: licensed to execute complete projects. Electrical company: a legal entity composed of engineers and technicians. For complete installation of any property: a supervising electrical engineer is mandatory.
- Why you should not perform electrical work yourself: 220V AC kills at just 10 milliamps. A wiring error may not cause an immediate accident but creates a latent hazard for years. Electrical work requires testing tools (insulation tester, multimeter) and safety training. Most countries criminalize performing major electrical work without a license.
- Main electrical systems in a home: Power (strong current): cables, panel, breakers, and earthing. Low current: internet, CCTV cameras, intercom, audio system. AC cooling: high-ampere dedicated circuits. Lighting: separately controllable circuits. Earthing/grounding: electrical shock protection system for all systems.
- Electrical work standards in Egypt: the Egyptian Electrical Code (EOS) is the official reference. International standard IEC and British standard BS7671 are also recognized in large projects. The supervising engineer is responsible to the Engineers Syndicate for ensuring execution meets standards. A company that doesn't mention the standards it works to is a company that doesn't know the standards.
Frequently Asked Questions
What's the difference between 'foundation' and 'finishing' electrical work?
Foundation (ta'sees): the structural phase — done before ceilings and walls are cast. Includes placing conduits in concrete or brick and pulling cables through them. This phase is hidden inside walls. Finishing (tashteeb): done after civil finishing — includes installing switches, electrical outlets, lighting fixtures, electrical panel, and final connections.
Is electrical engineering necessary for small projects?
For small tasks (replacing an outlet, changing a breaker) a technician is sufficient. For medium and large projects (apartment wiring, panel upgrade, adding AC circuits): an electrical engineer's supervision is mandatory. The engineer calculates loads and determines correct cable cross-sections — a calculation error means a real hazard.
What electrical work can a homeowner do themselves?
Acceptable for limited personal work: changing a bulb, replacing an external plug, resetting a tripped breaker. Not acceptable without expertise: replacing an electrical switch or outlet, running new wires, any work on the electrical panel. Simple rule: any work requiring opening an electrical box or running a wire needs a specialist.
What is electrical engineering and where can it be studied in Egypt?
Electrical engineering is a university specialization that studies: electrical circuits, electronics, power systems, automation and control, and communications. In Egypt: engineering faculties at Cairo, Alexandria, Ain Shams, Helwan, and private universities. Bachelor's degree: 4–5 years. Graduation qualifies for registration with the Engineers Syndicate and supervision of electrical projects.