One thing I’ve learned since becoming an electrical instructor more than 20 years ago is that the Code language does not always say what we think it says. I regularly find myself being humbled by Code ...
Two different technologies protect against two different types of hazard. Ground fault circuit interrupter (GFCI) devices protect people from shock by opening a circuit at a low threshold of leakage ...
Arc-Fault Circuit-Interrupters are relatively new electrical safety devices that first appeared in the 1999 National Electric Code. AFCI devices look very similar to GFCI devices, in that they have a ...
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