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Old 10-29-2018, 12:06 PM   #21
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Originally Posted by tiffcab View Post
Anyone done this? Nightmare? We own a construction company, many years, and have general knowledge but typically don't touch electrical.
We just upgraded our 2004 Classic for 50A service, and we rewired about 50% of the branch circuits. Our main panel has two feeds with manual transfer switch, has a panel-mounted internal surge protector, and branch OCPDs are combo AFCI/GFCI. Attached shows the main panel mounted just forward of the street-side wheel well, mounted on our 80/20 extruded aluminum frame cabinets.



External connection uses SmartPlug. All new branch circuit wiring is Ancor marine 105C cable.



Will be glad to talk it over with you. Send private message.
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Old 10-29-2018, 12:11 PM   #22
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Hi

First off, what you have is a 230V 50A circuit. It very much should come into a ganged 50A "double breaker" so that if one trips, they both trip. That way, it power is off, *all* power is off. (safety first ....)

On a modern AS trailer, the loads are distributed between the two sides of the 50A 230V circuit. It is not a "one on this side / all on the other side" kind of setup. The reason is pretty simple, you want to balance the load and minimize the neutral current. That keeps up your efficiency.

If you are going to put in a 50A service, put it in correctly. Run the right size cables to a 50A / 230V panel and go from there. One AC goes on each side. Microwave goes on one side, converter/ charger goes on the other side. Fridge goes on one side, furnace goes on the other side. Work on down the list of loads and distribute them. Remember that the goal is < 40A (80%) on either leg.

Bob
Curious what happens in this configuration if only 30A service is available and you use a dogbone adapter. Presumably you'd want all your important stuff on the leg that gets powered, right? Is that how the modern 50A coaches are wired, or are you just out of luck on half of your stuff in that case?

Or, does the 50 to 30A dogbone adapter connect both legs to the single hot lead? Genuinely curious how this works for folks with 50A trailers.
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Old 10-29-2018, 12:28 PM   #23
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We also renovated our DC wiring, creating a charge bus and a load bus system. Below shows the new DC power control panel, which handles two battery banks, two solar chargers, load and charging bus monitoring, and all DC branch circuits.



We replaced or added about 1/3 or our DC branch wiring and all of the main DC wiring.

Not difficult - just requires you to be detail oriented. We did this as part of our renovation for the front part of our trailer - from bathroom forward.

Still working on our project, so you are seeing our work at about the 85-90% point.

73/gus
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Old 10-29-2018, 12:40 PM   #24
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Curious what happens in this configuration if only 30A service is available and you use a dogbone adapter. Presumably you'd want all your important stuff on the leg that gets powered, right? Is that how the modern 50A coaches are wired, or are you just out of luck on half of your stuff in that case?

Or, does the 50 to 30A dogbone adapter connect both legs to the single hot lead? Genuinely curious how this works for folks with 50A trailers.
A 30A service pedestal to 50A trailer adapter (dogbone) connects the single 120V 30A current carrying conductor (black wire) to both "hot" sides of your 240V, 50A power panel - where your breakers connect. Grounded conductor (white wire) and grounding conductor (green wire) remain the same.

If you buy such an adapter, make sure you get one that is UL listed.

You also hope that your 120V 30A 1-pole service pedestal breaker is in good shape.

73/gus
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Old 10-29-2018, 12:47 PM   #25
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Originally Posted by gklott View Post
A 30A service pedestal to 50A trailer adapter (dogbone) connects the single 120V 30A current carrying conductor (black wire) to both "hot" sides of your 240V, 50A power panel - where your breakers connect. Grounded conductor (white wire) and grounding conductor (green wire) remain the same.

If you buy such an adapter, make sure you get one that is UL listed.

You also hope that your 120V 30A 1-pole service pedestal breaker is in good shape.

73/gus
Thank you. That makes sense.
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Old 11-04-2018, 05:31 PM   #26
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After being a residential electrician 36 years,I love to read how your "commercial'' electricians believe house wiring should be installed and why....most don't. Personally I have wired 3 homes for friends that make or made twice my pay as (comm elects) CE'S because they never learned the proper way but only knew what foreman told them.
The most important thing to remember is make sure whoever you have do your work, make sure they are insured and bonded.
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