- Earth continuity conductor: It’s an earth wire that connects all the metallic parts of an electrical installation of your home.
- Earth leads: It has limited leads or joints, known as earth joints. Helps to connect the earth continuity and the earth electrode.
- Earth electrode: Metallic part with low resistance against faulty buried underground.
- Conductors: Usually refers to wires that carry electricity
What is Bonding?
- Current: Refers to moving or flowing electricity
- Bonding: The process of reducing voltages and electrical shocks
- Live: If an item isn’t designed to carry electricity becomes alive, it means it carries electricity now.
Why do you need Earth Bonding?
What will Engineers do? The first thing an engineer will do is to use an earth bonding tester to test the current resistance on metallic items. The purpose of the bonding test is to measure the current resistance of the connection between an earth cable and the external side of appliances. The device that an engineer uses helps to determine whether your earth bonding system has a satisfactory resistance or not. Usually, there are two types of tests an engineer will do:
- Low current: its range is between 100-200 milliamps
- High current: Its range is between 10 amps -25 amps
Main and Supplementary Bonding/ Earthing to Water and Gas Supplies
- Metal water supplies
- Metal gas supplies
- All metal services pipes and ducting
- Metal service heating
- Air-condition system
- Lightning protection system
Difference between Earthing and Bonding
Bonding is connecting all the metal items that are not designed to carry electrical power to reduce the risk of electrical shocks.
It's recommended to avoid doing any bonding tests by yourself, call for a qualified engineer for electrical inspection and he will do the work for you.
In the UK the main cost of earth bonding is between £220-£320, however, the cost could increase depending on your location, your engineer, and your previous wiring system.
There are many factors to take, there is no fixed duration, and mostly it depended on the state of your electrical equipment and their locations.