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. 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. d) The connection must be made using clamps ( to BS 951) and be suitably protested against corrosion at the point of contact.

16.0mm 6242Y Twin and Earth Cable - Edwardes

Also used in connection to meters • Brown, inner core • Compliant with BS EN 6004 • Temperature rating: -15°C to +70°C • Min. Would I consider sizing it to half of the combined area of the 3 (240mm2) size as in half of 720 mm2 or half of each 240mm2 . Earth cables offer protection against accidental electric shock by providing a route for current that would otherwise pass through a person, by limiting the increase in voltage that can occur in a device.A qualified electrician will understand the Adiabatic is the last part of any electrical calculation.

Cables Earth Cable (6491X) 16mm2 G/Y Drum Doncaster Cables Earth Cable (6491X) 16mm2 G/Y Drum

Remember BS7671 is not a legal document so everything is "interpretation" and even using the on-site guide it is not "legally" binding and generally is written way way to the safe side of the regs. Also used in connection to meters • Blue, inner core • Compliant with BS EN 6004 • Temperature rating: -15°C to +70°C • Min. 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. 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.Aside from the ones needed to make our site work properly we use Google Analytics to monitor how the site performs.

Pitacs Conduit Cable (6491X) 16mm2 G/Y Earth Drum - Toolstation

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.The distributor may require a minimum size of earth conductor at the origin of the supply of 16mm² copper or greater for TN-S and TN-C-S supplies. The fault current is the electrical current which flows through a circuit during an electrical fault condition. Yesterday I commented that there was almost no detail in the question and the answer referred to a 2. Protective conductors (including earth and bonding conductors) of 10mm² cross-sectional area or less shall be of copper.

Earth Cable 16mm 6491X x 100m · Quickbit Earth Cable 16mm 6491X x 100m · Quickbit

Cable size selection is based on 3 main factors: Current carrying capacity, Voltage regulation, Short circuit rating. In the situation, you describe the calculation would need to be completed to determine whether the earthing conductor is adequate.is a non standard size protective conductor size, so the next size up is 10mm2 is acceptable, which saves money installing a 16mm2.