![]() I just want to see if it's a center neutral or ground as there seems to be some question among those techs and experts. John T rusty on the latest NEC but believe all this still holds true REGARDLESS I suggest it never be used for conducting Neutral current, use the branch circuits Neutral and Ground instead. The NEC when I practiced power distribution required bonding the Neutral to ALL READILY AVAILABLE GROUNDING ELECTRODES of which metallic pipes was one of such, but often it did NOT get bonded. NOTE there may or may not be a bond between metallic home plumbing and the Neutral. In addition, you should NEVER use plumbing as a return current path to the panel, but instead the normal branch circuit NEUTRAL CONDUCTOR and the Equipment GroundING Conductor to carry Fault current. You may or may not have a good ground return to the panel through a plumbing pipeīased on my training and experience Id say there's a better chance there's NOT any proper ground return through any metallic (if used) plumbing pipe (But hey I'm rusty and have been wrong before and open minded and always willing to learn something new). Neutral is insulated same as the hots DUH as its a live current carrying conductor !!!!!!!!!!!!! The EGC is often bare and is bonded to the outer conductive metallic frames of some tools and appliances WHICH YOU TOUCH !!!!!!!!!!! Some equipment/appliances used straight 240 no 120, in which case Neutral wasn't needed so two Hots and Ground sufficed.ĪGAIN Neutral is notttttttttttttttttttt same as nor to be used as the Equipment GroundING Conductor (Dedicated fault current return path ONLY) and the Equipment GroundING Conductor is nottttttttttt the same as nor to be used as the Neutral. That problem was later corrected by using four wires, Two Hots, Neutral, Equipment GROUND. However, since its bonded to the Neutral at the Service Entrance it could (if so wired) carry return current and there actually exists 120 VAC between it and the Hots. It was the (often Bare/Green) Equipment GroundING Conductor NOTTTTTTTTT the Neutral. ![]() ![]() To be safe and comply with the NEC NEVERRRRRRRRRRR use Ground for Neutral and NEVERRRRRRRRR use Neutral for Ground.Īctually, older 30 amp dryer outlets used 2 hots, and a ground wire. NOTE a 50 amp 3 pole 4 wire grounding receptacle CAN BE MODIFIED for a 50 amp 120/240 volt RV use as it has Two Hots L1 & L2, Neutral, Equipment Ground IE 4 wires like the 50 amp RV system. Its purpose is for the dedicated return of FAULT CURRENT ONLY while the Neutral (Grounded Conductor) is to carry normal return current. ![]() Neutral (GrounDED Conductor) is NOTTTTTTTTTTTTTTTTTTTTT the same as the Safety Equipment GroundING Conductor. FWIW here's another huge NOOOOOOOOOOO lol and FYI here's whyĪ 50 amp two pole 3 wire grounding receptacle has: Two Hots, L1 & L2 and an Equipment Ground, It DOES NOT have a Neutral (aka Grounded Conductor) which is absolutely required and necessary to properly and safely achieve 120 VAC from L1 or L2 to Neutral.…The RV DOES NOT use 240, it uses two legs L1 & L2 each of 120 VAC Line to NEUTRAL (which the dryer plug lacks)Ī metallic house water pipe may under certain circumstances suffice as a "Grounding Electrode" to which the incoming service entrances Neutral might be bonded ( NEC bonds to all "readily available" Grounding Electrodes) HOWEVER it is certainly by no means to be used as a Neutral for conducting normal return current. ![]()
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