Earthing

The exposed metalwork of all electrical equipment which could become electrically charged under fault conditions must be earthed unless the equipment is:

Certain items of electrical equipment may require periodic testing, for example earthed equipment. Guidance may be obtained from BBC ORM.

 

The electrical integrity of the earth of electrical systems used in and around buildings or fixed equipment, of technical equipment, of new installations etc. should be tested before first being put into service and then checked at regular intervals.

 

The condition and effectiveness of lightning conductors should be checked at regular intervals.