The High Voltage Indicator (HVI) uses a proven resistor chain method of measurement. The instrument is designed 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 enclosures will be shown by means of neon indicators.

After carrying out a proving test the HVI can be applied to the HV source, and the neon indicators will show whether there is voltage present. The indication 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.

A battery powered electronic proving unit is available to allow the fully assembled indicator to be tested at site before and after use. When used within switchgear special bent end adaptors, 60˚ or 90˚, are available as accessories.

The High Voltage Indicator is suitable for both indoor and outdoor usage in dry conditions. It is designed to perform under an operating temperature varying from – 5˚C to + 50˚C. The instrument has high immunity to interference fields and is ideal for use in cramped spaces. Safety limits are clearly marked and if features a handguard with a viewing window.

This product is available in the United Kingdom through our partners, Acutest, Alpha Electronics, Cuthbertson Laird, Norwich Instrument Services, and PASS Ltd. Alternatively, you can contact us direct by phone or request a quotation through our website.