Arc fault circuit interrupters detect dangerous electrical arcs that can start fires, often caused by damaged wiring or loose connections. AFCI breaker installation adds an important layer of fire prevention to your home.
Why It Matters
Many house fires start from arc faults that standard breakers cannot detect. AFCI breaker installation monitors the electrical waveform for irregular patterns associated with arcing and shuts off power before a fire can start.
What to Expect During the Process
- Assessment – The electrician identifies circuits, especially in bedrooms and living areas, that would benefit from AFCI protection.
- Breaker Selection – An AFCI breaker compatible with your distribution board is chosen.
- Power Isolation – The relevant circuit is switched off before installation begins.
- Breaker Installation – The standard breaker is replaced with the AFCI breaker in the distribution board.
- Wiring Connection – The circuit wiring is connected correctly to the new breaker.
- Functional Testing – The breaker's test button is pressed to confirm it trips as expected.
Expect the electrician to explain the difference between a normal trip and an arc fault trip, since the causes and troubleshooting steps differ.
Common Mistakes to Avoid
Avoid installing AFCI breakers that are not compatible with your existing distribution board, as this can cause installation issues or improper function. Skipping the test button check after installation is also a common oversight.
Estimated Cost of AFCI Breaker Installation
| Service | Estimated Cost (KES) |
|---|---|
| Single AFCI breaker installation | 6,000 – 14,000 |
| Multiple AFCI breakers (per unit) | 5,000 – 12,000 |
| Compatibility check with existing board | 2,000 – 5,000 |
| Full home AFCI upgrade | 40,000 – 80,000 |
Prices depend on breaker brand, board compatibility, and number of circuits covered.
AFCI breaker installation is a valuable fire-prevention measure, especially for bedrooms and living spaces with older wiring. Combined with RCD protection, it offers a strong layer of defense against both shock and fire hazards.