This is because the GFCI protection device will clear a ground-fault when the fault current is 5mA (+ or - 1mA), which is less than the current level necessary to cause serious electric shock or electrocution.Ī grounding-type receptacle without a ground is a safe installation, as long as the protection circuitry within the GFCI device has not failed from shorts or voltage transients. A GFCI-protected grounding-type receptacle without an equipment-grounding conductor is safer than a grounding-type receptacle with an equipment-grounding conductor, but without GFCI protection. Since the grounding terminals for the receptacles are not grounded, you must mark the receptacles with the words “GFCI Protected” and “No Equipment Ground” (see Sidebar: Understanding GFCIs). (c) Replace it with a grounding-type receptacle protected by a GFCI device (circuit breaker or receptacle). ![]() (b) Replace it with a GFCI-type receptacle and mark the receptacle with the words “No Equipment Ground ” or (a) Replace it with another 2-wire receptacle 210-7(d)(3) permits any of the following installations when replacing a 2-wire ungrounded receptacle: But, what can you do about old 2-wire nongrounding-type receptacles, where no ground exists in the outlet box? 210-7, it also requires you to effectively ground the grounding contacts of those receptacles to the branch circuit equipment-grounding conductor. The NEC requires you to install grounding-type receptacles on 15A and 20A branch circuits.
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