![]() ![]() ![]() Behind the breaker to the hot water heater, one of the few that were labeled, I saw some sparks. I kept hearing popping behind the panel so I removed the cover. Turned on all lights and went to the box to trip some breakers and see where they led me. Tonight I decided to map out the circuits on my electrical panel since only a few were labeled. See this chart for pictures of each of these recepticals. Either of these wrong recepticals would specify 10-3 NM cable, as they both have a neutral connection. Perhaps the OP has a 14-30R (aka modern dryer receptical) which is intended for 10-3wg. ![]() Perhaps they have a 10-30R (aka, pre 1996 dryer receptical), which was intended for 10-3 (without ground) and would, I assume, be illegal on a new circuit since it does not provide a ground. If we are talking a 30A 240V circuit, the receptical should be a NEMA 6-30R. One other possibility: The OP has the wrong receptical for the application. They specifically mention a bare ground wire. It's also possible that the OP is referring to a receptical, but is reading instructions that assume the use of a metalic cable similar to this (but 10 guage) where the grounding conductor is counted as the third wire.īTW: The OP is NOT discussing a water heater, nor did they run ungrounded cable. Both allow two current carrying conductors (either hot + hot or hot + neutral) and a ground. 10-3 is to a flexible cord as 10-2wg is to romex. If it is truly a *PLUG* we are discussing (not a receptical), then it indeed needs to be connected to 10-3, because PLUGS are connected to a flexible cord, not romex. I think this is just terminology confusion. ![]()
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