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Old 09-21-2015, 08:45 PM   #21
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I did not notice the MH in the picture below. I thought he was talking about a 30 amp TT but it has all been explained very well anyway.
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Old 09-22-2015, 02:15 PM   #22
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Originally Posted by 5456Mich View Post
I just have it plugged into a 20 amp. 120v. cord till I get an adapter to plug into my 30 amp. air compressor outlet.


NO DO NOT USE THAT PLUG!! Besides possibly destroying your trailer you may end up in a hospital! 30 amp RV's are all 110VAC, not 220VAC.


The best thing that could happen if you tried this would be tripping the air compressors breaker. The worst? Your wife posting your obituary on here for us to read. Please don't do that.

Just so you know, I have my 30 amp 5er plugged in to a 20 amp ground fault and can run my air conditioner, coffee pot or hot water heater, just not all at once. It will keep your batteries charged with no problems.


Jim
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Old 09-22-2015, 02:26 PM   #23
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Originally Posted by PokerDealer View Post
Thank, Harderd..... I've been trying to educate myself about the electrical system for the last month of so, maybe spent 40 or 50 hours reading, writing up questions nd researching the questions. When it come to solar, picking are slim. This is a great link, thanks for sharing.
I have been considering solar and did quite a bit of research for use on my 5er. I have been told this is a good system and comes highly recommended.

http://www.amazon.com/dp/B00BSZUHRC/...O9FZ5FP8&psc=1

They make a 200 watt system also but most everyone recommends going with the 400 watt panels.

Jim
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Old 09-22-2015, 03:14 PM   #24
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Something else to keep you up at night...

PLEASE DO NOT RELY ON WHAT I WRITE IN THIS THREAD!!! Just check it out.

As I see it, a 50 amp 120 outlet and a 50 amp 220 outlet are wired the same--as has been previously described: A neutral on the center blade and a 120 on each of the side blades, with ground on the grounding pin.

The Real Danger happens in the breaker box. The two 120 lines SHOULD come from the two poles on a double poled 50 amp breaker. Thus, the 120 are getting powered by the same 120 bus.

However, if someone tries to go cheap and uses two single pole 120 breakers and places them on separate buses, your outlet is now wired for 240 volts. This will destroy an RV.

A friend of mine supplies power cords to the RV industry. Last week he got a claim from a person who had been using his trailer for 6 months with the 50 amp service. No problem. He plugged it into a box that was wired from two separate buses and did over $5000 in damage. The camper tried to claim that the cord should have carried a warning.

Usually I would say, "You can't fix stupid." However, as regards to this subject there is a lot of misinformation.

PLEASE DO NOT RELY ON WHAT I SAY!!! CHECK IT OUT FOR YOURSELF.
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Old 09-22-2015, 03:39 PM   #25
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No, you can't fix stupid. However lack of knowledge or proper information can be fixed. Such as:


" The two 120 lines SHOULD come from the two poles on a double poled 50 amp breaker. Thus, the 120 are getting powered by the same 120 bus."


A double pole breaker connects to both buses. That is how you get 220 volts. This is why they are used for 220 (240) volt circuits.


You COULD do a 220 volt circuit with two single pole breakers but it is against code. If L1 or L2 shorted out it would only trip one breaker leaving half of the 220 volt circuit hot! Its a good way to kill someone!


Jim


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Old 09-22-2015, 08:25 PM   #26
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This is all pretty much the bible for RV electrics:

The 12volt Side of Life (Part 1)
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Old 09-23-2015, 02:35 AM   #27
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Quote:
Originally Posted by 5456Mich View Post
The Berkshire has a 50 amp 220v system if I'm not mistaken.
Pretty sure it is a misnomer to call it a 220 v system. Although you have 240 volts available at the post the 50 plug takes that as two separate 120 circuits and powers the house accordingly OR MAYBE I AM JUST SO SMALL TIME THAT I HAVE NOT SEEN 240 being used in an RV

The point is even with a 50 amp system be damn sure you know what you are plugging in to.

Be careful out there. A volt meter, some basic understanding of electricity and a Progressive Dynamics system are the best protections you can have.
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Old 09-23-2015, 10:53 AM   #28
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These are the sites I point most people to, in helping understand the electric systems, and voltage stuff. These are good ones to bookmark and read at your leisure.

Understanding how 50 amp 120/240 volt split phase service works:

Electrical Tutorial - Chapter 3 - 30 Amp versus 50 Amp

Understanding the different types of outlets you may encounter (that you never want to connect to), outlet testing, using multimeters, making plug-n-play testers, fixing outlets to work with your RV...and so much more. Click on all the tabs on the left hand side:

RV Electric

Understanding the different electrical systems in the RV, like what is powered by 120 volt AC, versus what is powered by 12 volt DC:

Basic RV Electricity - RV Information (RV Maintenance)

Understanding what a converter does:

RV Converters and Amp Draw - RV Information (RV Maintenance)

Electrical safety (really a must read). A little bit of everything. Make sure to scroll down and click on all the different parts.

RV Safety | No~Shock~Zone

and for sure read this from Mike in the No-Shock-Zone

http://www.noshockzone.org/rv-electr...0%93-hot-skin/



These are all easy to read and understand tutorials for the expert and novice alike. Hope it helps.
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Old 09-23-2015, 11:03 AM   #29
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These are also the schematics I use in trying to help understand how 50 amp RV's are wired and use the service:

1. From the service panel to the RV outlets




2. From the RV's power cord inlet to the service panel inside the RV. Note that each hot line is run separate, so you have two hot legs at 120 volts per.

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Old 09-23-2015, 01:33 PM   #30
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Great resources. Thanks!

BP
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