There are 15 standardized types of domestic electrical outlet plugs in use worldwide. The standard North American outlet, for example, has two vertical slots and a round hole beneath them for ...
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The GFCI detail homeowners mess up in older kitchens
GFCI devices are bulkier than standard receptacles, and when you add stiff older conductors, wirenuts, and possibly a grounding pigtail, the result can be a device that simply will not sit flush.
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