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Old 02-09-2019, 03:04 PM   #1
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Electrical from scratch reference...

I am working on a 1950 clipper , here http://www.airforums.com/forums/f417/1950-silver-steak-clipper-restomod-191517-2.html#post2208224

I need to start focusing on an electrical plan and could use some recommendation on resources. Iíve found good information from MattB thread Double Nickel Project it has stalled lately.

Has anyone thoroughly documented their electrical plan that would be a good place to start? I have exhausted the google search adding Airforums with my search. Great information but most theads Iíve found die off.

Any help would be appreciated

Richard
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Old 02-09-2019, 03:37 PM   #2
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The electrical design will depend on how you plan to use it. The biggest questions are; do you plan to boondock, will you be hooked up to shore power most of the time, do you want solar, etc.. Remember, even though your Airstream is 1950's vintage, your new electrical system will be using 2019 components. Give it some thought and plenty of folks here will be glad to help.

Pat
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Old 02-09-2019, 05:36 PM   #3
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Like Pat said, you start with a plan. You will be running 120v and 12v, AC/DC. Youíll need to figure out where you want receptacles and what voltage where. Your appliances and lighting. Your phone charging receptacles. Your coax. As youíre running your marine wire through the ribs with grommets, document location on interior elevation sketches. That will help when you install the interior skin. Run extra wiring for future. Throw in a couple of conduit for future runs. You may want to read some of the threads, or Google, on Progressive Dynamic. It is a converter, charger, has AC circuits and DC fuse panel. We installed the PD in both our trailers. Good luck
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Old 02-09-2019, 11:20 PM   #4
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Ditto Pat & Bubba

In doing mine I found that the wiring diagram was the last piece before rough in. Knowing which appliances are desired and their power requirements was a parallel step with establishing where they are placed (by 'room' and which side; curb or street). I struggled with getting wiring from one side to the other until I decided to run as much conduit in the belly pan and walls as possible.

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Then I realized that running conduit from side to side had to be routed around tanks and plumbing that was in the belly pan. Placement of tanks and plumbing can lead to frame modifications. It can be a vicious circle.

Bottom line I recommend a lot of planning on paper/computer apps for a lot of your systems before doing any major purchases. I found initial planning any of the systems created conflicts. Easier and cheaper to correct on paper than on the trailer.

I attached my electrical list and specs to give you an example of an approach. Great trailer to save.

ELECTRONIC CIRCUITS.pdf
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Old 02-10-2019, 09:33 AM   #5
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Good starting references

Quote:
Originally Posted by SGT374 View Post
I need to start focusing on an electrical plan and could use some recommendation on resources...Has anyone thoroughly documented their electrical plan that would be a good place to start?
Recommend starting with these references:
- NFPA 1192, Standard on Recreational Vehicles, 2018 ed. (more than electrical)
- NFPA 70, National Electric Code Handbook, 2017 ed., Article 551, Parts I-VI, Recreational Vehicles and Recreational Vehicle Parks
- ANSI/RVIA LV, Standard for Low Voltage Systems in Conversion and Recreational Vehicles, 2018 ed.

Airstream, by putting the RVIA certification on each trailer, states that the trailer is compliant with these three references. To have a safe trailer, most highly recommend that you also be compliant when you build it out.

There are three primary travel trailer electrical systems:
- National Highway Traffic Safety Administration required system for lights, brakes, breakaway switch, etc.
- DC charging, storage, and branch circuits
- AC shore power and branch circuits

Recommend starting with the electrical circuit diagrams for these three systems in recent Airstream trailers.

73/gus
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Old 02-10-2019, 09:56 AM   #6
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Quote:
Originally Posted by SGT374 View Post
I am working on a 1950 clipper , here http://www.airforums.com/forums/f417...ml#post2208224

I need to start focusing on an electrical plan and could use some recommendation on resources. Iíve found good information from MattB thread Double Nickel Project it has stalled lately.

Has anyone thoroughly documented their electrical plan that would be a good place to start? I have exhausted the google search adding Airforums with my search. Great information but most theads Iíve found die off.

Any help would be appreciated

Richard
Electrical was my challenge also.

Hope this helps http://www.airforums.com/forums/f36/...ent-38289.html

toastie
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Old 02-10-2019, 11:44 AM   #7
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Great guestion great answers

I canít get over the knowledge on this forum and the respect for others. I also have a gut job on my 69 Sovereign and want to rewire and add wire as you guys talk about. Thanks for the great advice on this topic. Hats off again to the folks who are bringing the knowledge to these fourms .

Jbknowso
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Old 02-10-2019, 12:06 PM   #8
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Electrical learning is a huge subject , but 2 things to start with ,
For a answer to all electrical / solar questions .
Gather the spec.s of what ever your working with --- and learn Ohms Law http://www.ohmslawcalculator.com/ohms-law-wheel
Then just do the math , its simple really .
After that lookup AC/DC theory .
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Old 02-10-2019, 12:40 PM   #9
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Quote:
Originally Posted by JohnTF View Post
Electrical learning is a huge subject , but 2 things to start with ,
For a answer to all electrical / solar questions .
Gather the spec.s of what ever your working with --- and learn Ohms Law http://www.ohmslawcalculator.com/ohms-law-wheel
Then just do the math , its simple really .
After that lookup AC/DC theory .
Better start with DC, it's intuitive. Power goes down one wire and comes back on the other. Volts times Amps actually equals Watts(power).

AC is another story. I felt like Alice when she went down the rabbit hole in Wonderland when I first studied it. It is "Not" intuitive.

In any event, have fun.

Pat
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Old 02-10-2019, 03:12 PM   #10
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Electrical +

Try this: www.marxrv.com
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Old 02-11-2019, 08:17 AM   #11
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Thank you everyone for your help. I will check out all the links and come up with an initial plan. I will submit it for review soon!
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Old 02-26-2019, 11:10 PM   #12
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Old 02-28-2019, 05:45 AM   #13
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Remember, you first have to design an electrical system to support the 12V and 120V loads. Wiring the loads, while difficult from a wire routing perspective, is not where to start. First design the supporting electrical system.

Below is a wiring diagram for a relatively simple RV system.

Pat


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