ELECTRICAL TESTING IN GLASGOW
WES ELECTRICAL WESTEND GLASGOW 01418405236 follow us on Facebook Safe method of isolation. The recommended procedure for proving dead and safe isolation should be by use of a test lamp or two pole voltage detector as recommended in HSE Guidance Note GS38 regulations. Non-contact voltage indicators and multi-meters should not be used. The test instrument should be proved to be working on a known live source or proprietary proving unit before and after use. All phases of the supply and the neutral should be tested and proved dead before any work is commenced by a qualified electrician . Test sequence and descriptions of test procedures. The following tests are carried out with the main board / Consumers main switch isolated 1. Extenal earth fault loop impedance (ohms) Reason: To establish that a good earth exists at the electrical installation in order for the remaining tests to go ahead. Method: Disconnect the main earthing conductor from the main earthing terminal at the main