Earthing & Bonding

What is earthing in a house and why does it matter?

Earthing provides a safe path for fault current so that protective devices trip quickly if something goes wrong. Without proper earthing, a fault could make your appliances dangerously live.

Why does my earth wire get warm?

A warm earth wire means current is flowing through it, which should not happen under normal conditions — it indicates a wiring fault or a neutral-earth connection problem that needs immediate investigation.

What is the difference between TN-S, TN-C-S, and TT earthing systems?

TN-S has separate neutral and earth conductors from the supply. TN-C-S (PME) combines them in one conductor back to the substation. TT uses a local earth electrode instead of a supply earth.

Why am I getting a small electric shock from my tap or metal pipes?

This is a serious warning sign. Switch off your electrics at the consumer unit and call an electrician immediately. Do not use water or metal fixtures until it is investigated.

What is the difference between neutral and earth?

Neutral is the return path for normal operating current. Earth is a safety conductor that carries current only when there's a fault — it protects you from electric shock.