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Old 06-25-2019, 09:20 AM   #1
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Questions on shore power

I am wanting to wire my bus up so that it runs solely on shore power. The bus will be completely run on AC power. My questiin is what is the best way for me to do this? Is there an easy way to hook in a breaker box that will just run on a 30 or 50 amp service?
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Old 06-25-2019, 06:50 PM   #2
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Just wire it like a standard house using your shore like as the power source. Just either only use one buss bar or tie them together at the input with a suitable jumper wire.
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Old 06-25-2019, 07:43 PM   #3
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Originally Posted by Iqinsanity View Post
Just wire it like a standard house using your shore like as the power source. Just either only use one buss bar or tie them together at the input with a suitable jumper wire.
you don`t need to ground the 120v shore power to the bus - shore power has it`s own ground - just make sure your wires and extension cord have 3 wires so none of your appliances, lights are hot
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Old 06-25-2019, 07:51 PM   #4
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To avoid a potential hot skin condition you do need to ground your AC panel to the bus body. Without the ground a loose hot wire touching the bus skin would not trip the breaker and someone touching the bus skin could be shocked.

Use a "branch" breaker box with separate ground and neutral bus bars. AC grounds and neutrals should only be joined ("bonded") at the main shore power panel.


Installing AC alone is fairly straight forward compared to a combined AC/DC system but doing it wrong can be fatal. There are plenty of "how to's" online that will show you how to physically wire your system. A little due diligence now will save headaches later.
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Old 06-25-2019, 07:53 PM   #5
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Technically youre right, but grounding through the box is just insurance. If he has to ask how to do it then it makes sense to keep it simple and safe. Wire it like a house, but pay attention to the fact that you have one line in not two.

I admit i missed the part where you treat it like a subpanel.

I second the advice not to tie neutral to ground and lwt the shore line do it at its source.
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Old 06-25-2019, 08:04 PM   #6
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Originally Posted by Iqinsanity View Post
Technically youre right, but grounding through the box is just insurance.

Insurance, yes, but insurance against a potentially fatal shock. This is not just a theoretical problem. If the OP chooses a 50 amp system there will be two hot wires coming in to the bus panel.
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Old 06-25-2019, 08:11 PM   #7
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Be nice if there was a quick and painless wiring diagram, as well as a list of components to purchase in order to get a simple AC "system" added to a bus.
It could already be on here somewhere, but too much searching is required to actually locate same...
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Old 06-25-2019, 08:14 PM   #8
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Honestly, and absolutely no disrespet to anyone, but if you have to ask the full basics then find a friend to help who's knowledgeable.
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Old 06-25-2019, 08:22 PM   #9
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Honestly, and absolutely no disrespet to anyone, but if you have to ask the full basics then find a friend to help who's knowledgeable.

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Old 06-25-2019, 08:30 PM   #10
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Honestly, and absolutely no disrespet to anyone, but if you have to ask the full basics then find a friend to help who's knowledgeable.
Excellent point...^
I'm just saying it would be nice to be able to put together a basic pile of new, needed parts ahead of calling in a "Pro" to correctly install AC power to a bus.
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