Wiring A 30amp RV Outlet - Ground & Neutral
I wired up a 30amp plug in my barn this weekend to power the travel trailer when it’s in the driveway. My barn is wired with a 100amp service breaker cabinet off the house main service, which was ins...
Forum Discussion
CA Traveler wrote:
Interesting that earth grounding or not of a remote panel seems to vary. Local codes might be different.
One bond has been NEC "law" for several years now !
Sjm9911 wrote:
It depends also on when the equipment was installed. Years ago panels only had one ground bar for both neutral and ground wires. It was the only way to do it. The ground is basically a back up to the neutral anyway.
From a schematic diagram you are correct, but there is more to it than that.
The original purpose for a ground was because if the hot accidentally shorted to the housing of an appliance any human who touched the case of the appliance could complete the path to ground and be electrocuted.
This is still true, but most residential appliances have plastic housings. Now the primary purpose of the ground single bond has more to do with lightening strikes.
