Electropar - Lineman Tool & Live Line Equipment

AC Voltage Tester AU

Designed to detect the presence of an alternating electric field, the MWB testers unique switching action identifies AC voltages from 240V to 33kV. Used for checking the voltage on live or de-energised, outdoor overhead conductors and indoor conductors, the MWB consists of a 4.5V transistor amplifier, diode lamp, audio buzzer and a sensitivity attenuator. The sensor plate in the cap is flat, allowing for directional checks. For example, it is easy to check for low voltages when high voltage is nearby, as the tester faces away from high voltages. As well as the off settings, there are six voltage settings. All high voltage tests should be carried out with the tester attached to a hot stick or alternatively, rubber insulating gloves may be used. Verification of a 'dead' conductor should include checking the tester on a nearby 'live' conductor. Induced voltages on isolated conductors are checked by increasing the sensitivity. Failure of the attenuator through a damaged switch or resistor will cause the tester to operate at full sensitivity. It is recommended that the tester be moved progressively closer until warning of voltage is indicated or until it touches conductor apparatus or test point. Other models are also available for voltages up to 500kV and include features such as self test and battery check and up to nine voltage settings. WARNING: High voltage testing should be carried out by trained personnel only.