GFCI's protect people and equipment by interrupting potentially lethal ground circuits exceeding 6mA. The dangers of electrical shocks have been long known - GFCI's are the only real way to be safe. Most city & county codes now require GFCI protection on power cleaning equipment.
Consumers should not use "adapter plugs" to connect the three-wire plug to a two-prong household receptacle without properly grounding the adapter plug. Learn more about ground fault current interrupters.
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