There are certain rules for the wiring of power test pens. Only in strict accordance with the rules can it be safe and accurate test data can be obtained. The following is an example to introduce the wiring of adjustable high-voltage digital megohmmeter:
Connect the 'E' end of the meter to the ground or zero end of the object under test, and the ground.
Connect the 'L' end of the meter to the end of the line under test, such as transformer windings, cable cores.
End the meter 'G' to a protection ring required to eliminate surface resistance leakage from the circuit under test.
The above is the wiring introduction of adjustable high voltage digital megohm meter
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