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Q

How do I test a class 1 appliance with no accessible earthed metal parts?

A

Referring to the IEE Code of Practice, the earth continuity test should be made “between accessible earthed metal parts of the equipment and the earth pin of the plug.” The term “accessible” is defined in various British Standards as parts which can be touched with a standard test finger. Make a note on the test record that the appliance is Class I but has no accessible earthed metal parts and as such an earth continuity test cannot be performed.

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