Comprehensive rangeEarth BondsEARTH BONDS

Earthing bonds are used for earthing and electrical bonding applications, as flexible electrical connectors and for lightning protection. Manufactured from high grade tinned copper braid to standards EN1977 and EN13602 (supersedes BS4109), high flexibility braid for high vibration areas.

In a building with electricity it is normal for safety reasons to connect all metal objects such as pipes together to the mains earth to form an equipotential zone. This is done in the UK because many buildings are supplied with a single phase supply cable where the neutral and earth conductors are combined. Close to the electricity meter this conductor is divided into two, the earth terminal and the wire going to the neutral busbar in the consumer unit. In the event of a break in a neutral connection this earth terminal provided by the supply company will be at a potential (relative to the true earth) which is the same as the live wire (phase wire) coming to the home.

Examples of articles that may be electrically bonded include metallic water piping systems, gas piping, airplanes, ducts for central heating and air conditioning systems, and exposed metal parts of buildings such as hand rails, stairs, ladders, platforms and doors. For example tower doors on Wind Turbines.

Electrical bonds and earth bonds are typically used in the construction, automotive, aerospace and rail industries, but are also essential for grounding in audio, video and computer systems. We also make a range of earth straps from flat braid and these are on the  Earth Straps page.

Our electrical bonds are available in lengths and cross-sections (current ratings) to suit your individual needs, and with terminations sized to suit your application. Can be supplied with or without insulation. Insulation colours include Green / Yellow, Black, Blue, Brown, Red. Competitive pricing and ex stock / short lead times. Contact our sales office for further information or complete our Earth Bond enquiry form if what you need is not in our shop.

These are made to order. We aim to manufacture and ship within one week.

Nominal area	Current rating	Diameter approx	Bolt size	Shop
4 mm²	40 Amps	3.5 mm	M6
6 mm²	55 Amps	4 mm	M5 to M12
10 mm²	85 Amps	5 mm	M5 to M12
16 mm²	120 Amps	6 mm	M5 to M12
25 mm²	150 Amps	8 mm	M5 to M12
35 mm2	195 Amps	10 mm	M6 to M12
50 mm²	250 Amps	11 mm	M6 to M12
70 mm2	300 Amps	12 mm	M8 to M16
95 mm2	360 Amps	15 mm	M10 to M16