At our recent Brisbane Toolbox we discussed and demonstrated the all-important task of Test Before You Touch. One aspect we focused on was confirming the test instruction is working correctly using a voltage proving device.
A proving device, is a device that can produce a low energy voltage to prove a voltage test instrument is functioning correctly. By utilising a proving device, the electrical risk is low as the proving device will limit the potential electric shock hazard to a safe level, and completely eliminate the risk of an arc blast.
When purchasing a proving device, look for:
- Shrouded (IP2X) test points, for contact with of test instrument probes;
- Indicates low battery capacity;
- Limits the output to 10 Watts;
- Generates a voltage of 50Hz;
- Has capability to test both direct contact and non-contact voltage indicators