DatasheetThe High Voltage Indicator (HVI) is used to indicate the presence of voltage to ensure the safety of maintenance or installation personnel allowing the apparatus to be safely earthed. Voltage up to 15kV AC or DC, on busbars or within switchgear enclo-sures will be shown by means of neon indicators.
When used within switchgear, special bent end adaptors, 60˚or 90˚, are available as accessories. A battery powered electronic proving unit is available to allow the fully assembled indicator to be tested at site before and after use.
After carrying out a proving test, the HVI can be applied to the HV source, the neon indicators will show whether there is voltage present. The indica-tion will start as low as 200V by means of flashing neon lights which will gradually increase their rate of flash until steady state is reached at 6.35KV (the phase to earth voltage on an 11kV system).
Each complete HV Indicator kit comprises:
- Indicator complete with earth lead
- Proving unit complete with batteries
- Polymer cleaning Kit
- Instruction Manual
- Carry Satchel