Aside from the ones needed to make our site work properly we use Google Analytics to monitor how the site performs. Protective conductors (including earth and bonding conductors) of 10mm² cross-sectional area or less shall be of copper. A qualified electrician will understand the Adiabatic is the last part of any electrical calculation.

Earth Bonding Cable Size Selection | Eland Cables Earth Bonding Cable Size Selection | Eland Cables

This 16mm² Single Core Earth Cable is suitable for power and lighting circuits, building wiring, use in conduits and closed installation ducts and internal appliance wiring. b) Bonding connections to incoming metal services should be made as near as practicable to the point of entry of the services into the premises, but on the consumer’s side of any insulating section. c) Where practicable, the connection to the gas, water, oil, etc service should be within 600mm of the service meter, or a point of entry to the building if the service meter is external and must be on the consumer’s side before and branch pipework and after any insulating section in the service. The main protective bonding conductors shall have a cross-sectional area of not less than half that required for the earthing conductor and not less than 6mm². In the situation, you describe the calculation would need to be completed to determine whether the earthing conductor is adequate.a) Only copper conductors should be used: copper covered aluminium conductors or aluminium conductors or structural steel can only be used is special precautions outside the scope of the Wiring Guide are taken. is a non standard size protective conductor size, so the next size up is 10mm2 is acceptable, which saves money installing a 16mm2. The adiabatic equation is based on the assumption the earth fault current is so short that none of the heat energy produced in the protective conductor escapes before the protective device operates.

size should the earthing conductor be? | Voltimum What size should the earthing conductor be? | Voltimum

Also used in connection to meters • Blue, inner core • Compliant with BS EN 6004 • Temperature rating: -15°C to +70°C • Min.

If your doing one or two runs and the cost isn't important then fair enough, use the standard size in the wiring regs as a guide. Guidance on earth conductor and protective bonding conductor cross-sectional areas is given in the guide to the wiring regulations BS7671.