Electrical work in residential and commercial buildings covers a wide range of tasks. Below is a clear, practical breakdown by category, with notes on how they differ between homes and commercial spaces.
1. Wiring & Power Distribution :::-----
A. Residential ::----
1. House wiring (single-phase)
2. Main service panel installation
3. Branch circuits (lights, outlets, appliances)
B. Commercial ::----
1. Three-phase wiring systems
2. High-capacity feeders & busbars
3. Distribution boards for floors/sections.
2. Lighting Systems :::-----
A. Residential ::----
1. Indoor & outdoor lighting
2. LED, decorative, and landscape lighting
3. Dimmers and smart lighting
B. Commercial ::----
1. Office, retail, and industrial lighting
2. Emergency & exit lighting
3. Energy-efficient and automated lighting systems.
3. Power Outlets & Equipment Connections :::-----
A. Residential ::----
1. Socket outlets
2. Appliance connections (AC, geyser, oven)
3. EV home charging points
B. Commercial ::----
1. Heavy-duty outlets
2. Machinery & equipment connections
3. Server racks and workstations.
4. Electrical Panels & Control Systems :::-----
A. Residential ::----
1. Main distribution board (DB)
2. Circuit breakers & RCDs
3. Load balancing
B. Commercial ::----
1. MCCs (Motor Control Centers)
2. Sub-panels and control panels
3. Automation and PLC systems.
5. Safety, Grounding & Protection :::-----
A. Residential ::----
1. Earthing/grounding
2. Surge protection
3. Smoke detectors
B. Commercial ::----
1. Lightning protection systems
2. Fire alarm & detection systems
3. Backup power safety interlocks.
6. Low-Voltage & Communication Systems :::------
A. Residential ::----
1. Doorbells
2. CCTV cameras
3. Internet & TV cabling
B. Commercial ::----
1. Structured data cabling
2. Access control & biometric systems
3. PA and intercom systems.
7. Backup & Renewable Power :::----
A. Residential ::----
1. Inverters & batteries
2. Solar panel installations
3. Small generators
B. Commercial ::----
1. Diesel generators
2. UPS systems for critical loads
3. Large-scale solar & hybrid systems.
8. Maintenance, Testing & Troubleshooting :::-----
A. Residential ::----
1. Fault finding
2. Repair & replacement
3. Periodic inspections
B. Commercial ::----
1. Preventive maintenance
2. Load testing
3. Energy audits & compliance checks.
