Is a tripping circuit breaker dangerous? +
A circuit breaker that trips occasionally is doing its job — protecting you from overcurrent. However, frequent or immediate tripping indicates an underlying fault such as a short circuit, overloaded ring main, or deteriorated cable insulation. Do not simply keep resetting it, as this bypasses the protection that is keeping you safe. Have an electrician in Wolverhampton diagnose the cause before using the circuit again.
How long does a consumer unit replacement take? +
A consumer unit replacement in Wolverhampton usually takes 4 to 8 hours, depending on the number of circuits and the condition of the existing wiring. Your electricity supply will be off for most of this time, so plan accordingly — charge phones, fill flasks, and move any frozen food to a cool bag. The electrician will test every circuit before restoring power.
How often should I have my electrics inspected? +
The IET Wiring Regulations recommend an electrical inspection (EICR) every 10 years for owner-occupied homes, every 5 years for rented properties (this is a legal requirement for landlords), and every 5 years for commercial premises. If your home was built before 1980 or has never been inspected, it is worth booking an EICR sooner. The inspection will identify any deteriorated wiring, missing earthing, or outdated components.
What is the difference between an RCD and an MCB? +
An MCB (Miniature Circuit Breaker) protects against overcurrent and short circuits — it is the modern equivalent of a fuse. An RCD (Residual Current Device) protects against earth leakage, which is what can kill you if you touch a live wire. Modern consumer units use RCBOs, which combine both functions into a single device per circuit, giving you the best protection. If your consumer unit still has rewirable fuses, it is overdue for an upgrade.
Do I get a certificate after electrical work is completed? +
Yes — for any notifiable electrical work (new circuits, consumer unit replacements, bathroom/kitchen installations), your electrician must issue an Electrical Installation Certificate and notify your local building control. For smaller jobs like replacing a socket or light fitting, you should receive a Minor Electrical Installation Works Certificate. Keep these certificates safe as you will need them when selling your property.
Can I do any electrical work myself? +
You can legally carry out minor electrical work such as replacing light switches, sockets (like-for-like), and light fittings without notifying building control. However, you must not add new circuits, work in bathrooms or kitchens (within zones), replace a consumer unit, or install outdoor wiring unless you are Part P registered. DIY electrical work is a leading cause of house fires — if you are unsure, always call a qualified electrician in Wolverhampton.