noise_book:grounding
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| The easiest method is to use an outlet tester. These inexpensive devices plug directly into a wall outlet and indicate whether the wiring and grounding are correct. | The easiest method is to use an outlet tester. These inexpensive devices plug directly into a wall outlet and indicate whether the wiring and grounding are correct. | ||
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| A multimeter can also be used, but caution is required since you will be measuring live AC voltage. | A multimeter can also be used, but caution is required since you will be measuring live AC voltage. | ||
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| Finally, measure between Neutral and Ground. The voltage should be very close to zero. | Finally, measure between Neutral and Ground. The voltage should be very close to zero. | ||
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| If these measurements do not look correct, there may be a grounding problem. In that case, the building wiring or electrical panel should be inspected by a qualified electrician. | If these measurements do not look correct, there may be a grounding problem. In that case, the building wiring or electrical panel should be inspected by a qualified electrician. | ||
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