Quote:
Originally Posted by JamieGeek
I do as well: If you don't want an arc turn off the main breakers inside the coach when you plug in. Of course that just moves the arc to the main breakers instead of the plug (when you turn them back on after plugging in).
Yes, there might be an arc inside the main breaker but it shouldn't be visible.
If you think about it: When you plug your coach in you are plugging one house into another--its more than plugging in a TV, Microwave, or vacuum. Its plugging all those things in at the exact same time (e.g. with everything off the motorhome is going to draw some current--the parasitic draw from all those appliances adds up to a small spark when you plug in).
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I don't believe that the accumulated current draw due to parasitic draw from devices that are turned off will be enough to produce arc of the intensity that we see and hear when we plug into shore power. I don't know what is causing the majority of current flow, but I assume it could be relays and/or the inverter/converter.
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