A Hockey Puck 15/30Amp Adapter to Avoid
This is a style of hockey puck adaptor that was responsible for an intermittent hot skin (open ground). Notice how it shows "Made in USA", has "CSA" symbol, and no mention of "UL". CSA stands for "...
Forum Discussion
Harvard wrote:Dutch_12078 wrote:
The safety ground lug should never carry any significant current unless there's a fault elsewhere. A "hot skin" condition only occurs if the neutral and ground are bonded in the RV in violation of the NEC or shorted together, AND the power source hot and neutral are reversed. Just the absence of the ground alone should not cause any problems, although it's certainly not advised to leave it that way in case a fault should occur.
Not so, there is stray capacitance between the H, N and G conductors through out the RV. When the G is allowed to float it will attempt to find a stable level 1/2 way between H and N or some where < 55 VAC. But the extent of current behind this voltage is in the order of being < 5 milliAmps otherwise it would trip GFCIs if there was a GFCI supplying the RV.
Also, quite separate from the presence of 120VAC H and a N circuit wiring, if you park an RV under HIGH VOLTAGE distribution wires (ie 6,000 VAC) and the RV IS NOT CONNECTED to Shore Power AND the RV has no conductive connection to EARTH, that RV frame will develop a hot skin. This type of hot skin is due to the RV being an isolated capacitator plate between the high voltage wire and EARTH.
IMHO.
What part of "significant current" didn't you understand?
