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Old 05-15-2012, 12:48 PM   #1
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Re: Buying My SKOOLIE Soon - Need Help On Wiring!

you should read about bus conversions on other bus conversion sites as electrical is covered. also you can buy bus conversion bible, etc which will help as well.

if ya use an inverter, my guess is that ya need a battery bank as an inverter maketh 110v from 12v. in fact, you need a converter for 110 to 12v, to run the 12v things when on shore power, and to also charge up the battery bank. ya use inverter like for while traveling, camping, etc. you should also get something like a 4k gen set, and maybe solar panels...

30 amp shore power will run one a/c just fine, or 2 small house type ones.
you should have a12v 110v automatic switch over which swiches gen set and shore power back and forth.
have fun.
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Old 05-15-2012, 03:49 PM   #2
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Re: Buying My SKOOLIE Soon - Need Help On Wiring!

If you're not using a battery bank you just wire the bus like a house. A small branch breaker box would be fine, just keep your neutral and ground bars separate. Not using DC power will certainly make your wiring simpler.
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Old 05-16-2012, 10:28 AM   #3
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Re: Buying My SKOOLIE Soon - Need Help On Wiring!

if your just runing a plug in to shore power, just make it like a house circuit. i thought u wanted to use an inverter, but me readread orig post...
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Old 06-13-2012, 12:11 AM   #4
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Re: Buying My SKOOLIE Soon - Need Help On Wiring!

Don't take this the wrong way, but I think you should consult a licensed electrician. If you wouldn't wire your own house, you don't want to wire your bus if you are going to hook up to shore power. I seem to remember some guy getting electrocuted in his bus by a faulty wiring job. That's a lot of juice to play with.
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Old 06-13-2012, 09:24 AM   #5
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Re: Buying My SKOOLIE Soon - Need Help On Wiring!

Basic electric ..... 3 wire......
Hot (black) in to breaker box hot lug, where the breakers plug in.
neutral (white) to the neutral lug normally on the left side as you look at the box.
and ground (green) to the ground lug on the other side of the breaker box.
Hot wire (black) to the plug, light or appl. Neutral (white) is the return back to the box neutral side.
Ground (green) is always ground. normally hooks to the metal box at the plug or light or appl. and is a contentious circuit throughout the bus back to ground.
This prevents you from getting shocked or worse. DO NOT use the bus chassis as ground for your AC circuits....... not good!!!! 120 volts AC need an earth ground. Chassis is ground for the 12 volt DC systems.
Size of wire very important as a too small size of wire will over heat, melt or burn. Number 12 wire is ok but a size 10 is much better.
For the bus stranded wire is much better than solid wire.
Size required will be determined by the load at the other end ie plug normally 15 amps, light fixture 15 amp. do not put all lights or all plugs on the same circuit.
Maybe one circuit for the living area, one circuit for the bedroom etc,
Stand along circuits for all appliances. ie fridge, microwave , electric heaters etc.
Too many combinations to try to do it yourself if you do not understand it.
Be smart, be safe and find someone who KNOWS what the requirements are...
Best of luck ....
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Old 06-13-2012, 11:34 AM   #6
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Re: Buying My SKOOLIE Soon - Need Help On Wiring!

Quote:
Originally Posted by mlowry7
I'm a true novice at electrical systems.. .
You might want to buy a book on basic electrical wiring. You can pick them up at big box lumber/DIY stores, some Wal-marts, K-Marts or a bookstore. They aren't very thick not terribly complicated.

I wouldn't trust too many house electricians to wire up a mobile unit. They don't understand that the chassis IS the ground.
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Old 06-13-2012, 02:41 PM   #7
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Re: Buying My SKOOLIE Soon - Need Help On Wiring!

Quote:
Originally Posted by lornaschinske
Quote:
Originally Posted by mlowry7
I'm a true novice at electrical systems.. .
You might want to buy a book on basic electrical wiring. You can pick them up at big box lumber/DIY stores, some Wal-marts, K-Marts or a bookstore. They aren't very thick not terribly complicated.

I wouldn't trust too many house electricians to wire up a mobile unit. They don't understand that the chassis IS the ground.
The chassis is the ground for a 12 volt system, NOT if you are hooking up to shore power. Anyone that does not understand the ins and outs of of electricity (that INCLUDES me) should not be playing around with wiring a 120 volt system. This is child's play for experienced electricians but can cause some serious hurt if you don't know what you are doing. The OP has already stated that he is a novice. There is nothing wrong with getting help. In many jurisdictions, someone can be an owner builder and build their own house from top to bottom EXCEPT for electric and plumbing. That is done for very good reason, they don't want people to die.


Quote:
I wouldn't trust too many house electricians to wire up a mobile unit. They don't understand that the chassis IS the ground.
I am deleting what I wrote since it wasn't contributing to the original question and I dont want Lorna angry with me.
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Old 06-14-2012, 02:32 AM   #8
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Re: Buying My SKOOLIE Soon - Need Help On Wiring!

here in oregon, we are required to have 2 ground wires for hooking up mobile homes.. one is isolated and goes back to the panel, and the other goes to the skin of the box on the outside of the mobile, its inside panel, and the skin of the meter box. That requirement is only around 6 yrs old, but is the same way i have been wiring each of the 5 busses that i have done for myself since the mid 80's.

when/or after.. wiring 110v, its a good idea to use your test meter to test for current from your bus skin to a known good ground rod (you can test that also)
NEC book has good stuff in it fwiw
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Old 06-14-2012, 11:00 AM   #9
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Re: Buying My SKOOLIE Soon - Need Help On Wiring!

Quote:
Originally Posted by crazycal
... I'm sorry to say this and mean no disrespect but that is a ridiculous statement.
Dear Cal, I apparently am unable to express myself very well. So I will simply keep my "ridiculous" statements to myself.

BTW, Our first house that burned to the ground (electrical fire) was wired up by a licensed electrician.... one with a drinking problem. We learned that as we were standing looking at the ashes of our former home.

I think I will carefully choose what I post from now on, I'm getting a little tired of being attacked.
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Old 06-14-2012, 11:53 AM   #10
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Re: Buying My SKOOLIE Soon - Need Help On Wiring!

Quote:
Originally Posted by chev49
here in oregon, we are required to have 2 ground wires for hooking up mobile homes.. one is isolated and goes back to the panel, and the other goes to the skin of the box on the outside of the mobile, its inside panel, and the skin of the meter box. That requirement is only around 6 yrs old, but is the same way i have been wiring each of the 5 busses that i have done for myself since the mid 80's.
To be clear, are you saying that the bus body is being grounded by the second (AC) ground wire? I was told (by a licensed electrician) not to ground the chassis/body back to the AC panel when running my AC circuits. The DC, of course is grounded to the chassis.

My bus body is fiberglass so the AC wiring never comes near anything conductive, so maybe that's why he said that.
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