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Milbank RV 50amp receptacles melting

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    Milbank RV 50amp receptacles melting

    I have 5 year old Milbank meter pole with RV 50 amp receptacles that are continually melting and I have to change them out. What is the cause of this? Is it just a loose connection between the receptacle and the male plug? There is nothing else odd here and it is happening at alot of my camp sites.

    #2
    I suspect the RV vehicle plugs are worn out and have loose connections that are creating heat and melting your recep. Either that or all your recep. are loose.
    They say I shot a man named Gray and took his wife to Italy
    She inherited a million bucks and when she died it came to me
    I can't help it if I'm lucky

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      #3
      Check the the cords that are being plugged in there. A lot of those molded rv plugs begin to burn, and then the loose connection just kills the receptacle.

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        #4
        Wow. This sure sounds familiar. This was about two months ago in a 1-year old panel.








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          #5
          poorly balanced panels in the RV?

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            #6
            Originally posted by Sierrasparky View Post
            poorly balanced panels in the RV?

            They're all 120v, no matter what. RVs do not utilize 240.

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              #7
              Originally posted by 480sparky View Post
              They're all 120v, no matter what. RVs do not utilize 240.
              That picture is a 120/240v range outlet. So how is the RV wired.
              Don't the Rv have a 120v 50a outlet?

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                #8
                Originally posted by Sierrasparky View Post
                That picture is a 120/240v range outlet. So how is the RV wired.
                Don't the Rv have a 120v 50a outlet?
                They're all wired for 120v. I have yet to see an RV that has a 240v load in them.

                If they have 240v loads, how do they plug into a standard 120v receptacle and have everything work?

                How do the work on 240v receptacles, and why do they use 240v cord & plugs? Simple.... they only utilize one hot wire. Half the RVs that plug in will use the hot on the 'right' side of the receptacle, and half will use the hot on the 'left' side of the receptacle.

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                  #9
                  So You tell me that the manufacture makes cords with all 4 wires and only use 3. Really.

                  Some RV's have 240v appliances. what I can bet on is that they all are wired with all the 120v on one leg. A Rv park gets overloaded on one Leg because the EC wires Line 1 on the same terminal on each and every pedistal. I can assure you there is a voltage drop on Line 1 when the park is full.

                  I have seen this in condos where Line 1 is substatially heavier loaded than Line 2. When everyone is home the current on line 1 is drawn down because of the heavy load while line 2 is not loaded much at all.
                  That is why it is essential to balance the load equally. It it difficult in resi. although in multifamily it is best sometimes to switch around the loading opposite that of half the complex.

                  My 2 cents

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                    #10
                    Originally posted by Sierrasparky View Post
                    ...........Some RV's have 240v appliances. ......

                    RVs? Or mobile homes?

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                      #11
                      Originally posted by Jeff80 View Post
                      I have 5 year old Milbank meter pole with RV 50 amp receptacles that are continually melting and I have to change them out. What is the cause of this? Is it just a loose connection between the receptacle and the male plug? There is nothing else odd here and it is happening at alot of my camp sites.
                      Is it just a loose connection between the receptacle and the male plug? .
                      That is the most likely cause, the people probly don't check to make sure the plug is tight.

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                        #12
                        Originally posted by 480sparky View Post
                        RVs? Or mobile homes?
                        That would be those big RV's with the slide outs.
                        and Motor Homes on Bus chasis.

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                          #13
                          Originally posted by 480sparky View Post
                          RVs? Or mobile homes?
                          I have a Yogi Bear campground, that has:

                          1 120 volt 20 amp GFCI receptacle
                          1 120 volt 30 amp receptacle (non-NEMA) special trailer)
                          1 240/120 50 amp receptacle

                          And have seen a few larger RV's plugged into the 50 amp?

                          Oh and every other pedestal has the legs swapped
                          Wayne A. From: N.W.Indiana
                          Be Fair, Be Safe
                          Just don't be fairly safe

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                            #14
                            Look in 551.46(C)(4) its in there.
                            Wayne A. From: N.W.Indiana
                            Be Fair, Be Safe
                            Just don't be fairly safe

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                              #15

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