Asked by: Terrance Fundacoo
asked in category: General Last Updated: 13th May, 2020

Can a Megger damage equipment?

The voltage is supplied at a very low current so as not to damage sensitive equipment or be dangerous to the tester. While they identify problems with insulation, megohmmeters do not pinpoint the location of the current leak.

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Furthermore, can a Megger damage insulation?

The Megger insulation tester is a small, portable instrument that gives you a direct reading of insulation resistance in ohms or megohms. For good insulation, the resistance usually reads in the megohm range. This method is nondestructive; that is, it does not cause deterioration of the insulation.

Similarly, is a Megger dangerous? Although Megger insulation testers are NOT inherently dangerous, safety officers and safety S.O.P.s often call for added diligence above 500 V. Time is an important test variable in insulation testing, much more so than in many familiar electrical tests.

Besides, is Megger testing destructive?

The Megger insulation tester is essentially a high-range resistance meter (ohmmeter) with a built-in direct-current generator. This method is non- destructive; that is, it does not cause deterioration of the insulation. Figure 2–Typical Megger test instrument hook-up to measure insulation resistance.

How do you test a house wiring with a Megger?

If you are testing insulation resistance to ground, place the positive probe on the ground wire or the grounded metal junction box and the negative probe on the conductor or terminal. Energize the Megger for 1 minute. Read the value of the resistance at the end of the minute test and note it in your table.

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