The ACC50MTL is an essential accessory. It is the only way to test for earth bond continuity as well as for r2 measurements. it also comes with its own croc-clip.
First, measure the resistance of the test lead itself and record, or if using auto-null facility on your continuity tester, zero out this resistance.
Connect the croc-clip to the extension reel’s loose end and connect to the earth point at the distribution board.
Unwind the appropriate length of test lead cable, then connect your continuity tester to the extension reel’s central 4mm connector and to the point to be tested.
One end of the earth bonding should be disconnected to avoid parallel earth paths.
Buy Test Lead Extensions Kewtech ACC50MTL from ISSWWW, the leading supplier in the UK
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Test Lead Extensions
