A proving unit is essential for the proving of voltage indicators before and after use, in order to follow safe electrical working practices.
The Kewtech KEWPROVE 3 is a 50-690 V proving unit with just two terminals to test AC and DC voltage detectors.
The Maindale PD440 is a portable battery powered proving unit for the testing of contact type voltage detectors up to 440V.
The Megger MPU690 proving unit generates automatically stepped voltages from 690 down to 50 volts.
The Martindale PD690 is a portable, battery powered proving unit for the testing of contact type voltage detectors up to 690V.
The Fluke PRV240 reduces the risk of shock and arc flash by validating the functionality of test tools without placing yourself in a potentially hazardous electrical environment.
The Martindale PD700 is a dual voltage proving unit which generates 50V at 50Hz for 3 seconds and then generates 700V at 50Hz.
Prove the voltage indicating ability of potential indicators, test lamps and multimeters with the Seaward PPX.
The Seaward PH3 (flat contact electrode) is designed for use with potential indicators and phasing rods with domed contact electrodes.
The Seaward PH3 is designed for use with potential indicators and phasing rods with domed contact electrodes.
The Kewtech KEWISO2 Safe Isolation Kit allows you to ensure your work complies with regulation 14 of the Electricity at Work Regulations.
The PH3-LLT is intended to check if a Live Line Tester functions correctly.
The complete solution for safe isolation, the Martindale VIPDLOK138 Lock Out Kit contains the VI13800 voltage indicator, PD440 proving device, along with a complete lock out kit, supplied with soft carry cases.
A proving unit is used alongside a voltage tester to make sure circuits are correctly shown as not live.