Common Upgrades

Common upgrades that are regularly needed:

Residual current device (RCD)

What does an RCD do?

An RCD is a sensitive safety device that switches off electricity automatically if there is a fault.

An RCD is designed to protect against the risks of electrocution and fire caused by earth faults. For example, if you cut through the cable when mowing the lawn and accidently touched the exposed live wires or a faulty appliance overheats causing electric current to flow to earth.

Is it a requirement to install RCDs?

In 2008 a new edition of the UK standard for the safety of electrical installations, BS 7671, came into effect. This standard calls for virtually all electrical circuits installed in homes since then to be provided with additional protection by means of an RCD.

Earthing and bonding

Earthing is used to protect people from the risk of electric shock. If the earthing arrangements within your electrical installation were defective or inadequate, you could receive an electric shock from the equipment or appliance metal casing.

The purpose of earthing is to provide a path for electric fault current to flow safely to earth to enable the circuit breaker or fuse to operate.

Bonding is the connection of the incoming metal gas and water pipes to the main installation earthing terminal and is vital for your protection from electric shock.

In a correctly earthed installation, any appliance or equipment developing a fault to the metal casing, will be quickly disconnected by the operation of the circuit fuse or circuit breaker.

Fuse board

Your Fusebox

The fusebox also known as consumer unit should be easy to find. You should make sure you know where it is in case you ever need to turn the electricity off in an emergency. It usually contains three things, and they are used to control and distribute electricity around your home. They are: The main switch; Fuses and/or circuit breakers; and Residual Current Devices.

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