How To Test Push-in Terminal Blocks For Temperature-related Failures
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In actual application, push in wire terminal block should maintain good insulation performance, and a normal push wire terminal block should eliminate ground faults. You can use an insulation meter or megohmmeter to measure when the power is off. Measure in sections, and try to only measure cables, wires, circuit breakers, switches, and other power distribution lines. If it is difficult to measure in sections, unplug the fuses of weak current equipment and sensor equipment.
