1 For permanently installed mains and battery energiser, 3 earth stakes of 1–2 m in length are generally sufficient.
2 For portable battery energisers there should be at least one earth stake of 1 m in length. Additional stakes are recommended in dry conditions.
3 Ensure that all connections are made using screws.
4 All parts of the earth system should be
hot-dip galvanised – i.e. rust proofed!
5 Check the earthing of your energiser regularly.
The standard earth system for energisers from 1 to 5 joules:
Drive 3 galvanised earth stakes of 1 m length into the soil 3 m apart and
connect them with screws and high voltage cable.