95 - Volt Sticks

10 August 2021

Did you know?

A faulty volt stick can lead to a serious incident!

What is a volt stick?

A volt stick or a non-contact tester is a testing device that detects the presence of AC voltages in a cable or piece of equipment, without the need to make direct contact with conductive material.

A built-in sensor at the tip of the tester detects the presence of voltage when touching a conductor, outlet or supply cord, without the need to penetrate or cut the insulation. When the tip glows red and the unit beeps (not all brands will beep), you know that there is potentially a voltage present.

Correct use of a volt stick

Volt sticks should never be used to confirm that a circuit is correctly isolated, that is a job for a tradesperson (or final year apprentice under direct supervision) with a multimeter. Volt sticks are used as a final safety check for an individual to confirm that what they are about to touch isn’t energised.

To ensure that you get an accurate reading from your volt stick, the best practice is to:

Repeat these steps until you are satisfied that you have correctly identified that there is no voltage present before commencing work.

Maintenance of a volt stick

To ensure your volt stick is in the best possible condition to work correctly, there are a few maintenance steps that should be followed:

EGT apprentices are expected to use their volt stick to test before you touch to confirm all equipment to be worked on is de-energised before starting work.


For further information regarding this Safety Alert, please contact EGT on (08) 6241 6100 or speak with your Field Officer. Click here to download this Safety Alert as a PDF.