... service life,etc... Very Low Frequency AC Hipot Tester with Sine Wave Output 70KVProduct DescriptionAC testing of cables and electrical apparatus is ... the actuation time are both less than 20ms.4. A high voltage output protective resistor is provided in the voltage boost ... 60KV, 70KV, 80kV (peak)2. Output frequency: 0.1Hz, 0.05Hz, 0.02Hz3. Measurement accuracy: 3%4. Positive and negative voltage peak ...