That could well be it. Basically, it's likely to be tripping if there is a very slight continuity between live and ground, ie, the insulation (possibly in the cable) has deteriorated or has been damaged.
@rodabod started
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That could well be it. Basically, it's likely to be tripping if there is a very slight continuity between live and ground, ie, the insulation (possibly in the cable) has deteriorated or has been damaged.