Asked in Electrical Engineering
In instrument cables with a rating of 600 volts can you use a megger tester with a 250 voltage range?
Yes, you could, but why would you? Maintenance or fault testing on a cable rated at 600 volts involves applying the rated voltage (600 volts) and measuring the leakage current. Doing this test at 250 volts doesn't really test the cable. High potential (hipot) testing involves the application of even higher voltages for test purposes.