Continuity Test
Purpose:
To ensure that metallic parts are properly bonded. It checks if an electric circuit is in fact a complete circuit.
Equipment:
Continuity Tester
Procedure:
The test is conducted after all electrical wiring and the bonding of all non-current carrying metal parts are completed. Connect one contact from the tester to an accessible ground, and the other contact to each part being tested. The test indicator should indicate “on” if the part is bonded. Example of non-current carrying metal parts to be checked are:
- The steel chassis.
- Metallic raceways.
- Metal siding.
- Metal roofs.
- Metal HVAC ducts (foil covered insulated ducts do not need to be checked).
- Metal gas piping.
- Appliance enclosures for fans, water heaters, furnaces and fireplaces.