Forum Discussion

grandpalarry's avatar
grandpalarry
Explorer
Apr 30, 2013

Safe shore Power

I bought one of the little yellow power post testers that shows if it's safe to use.
My question is, if I plug into the 120 plug and the lights show OK, does that mean the 30 amp and 50 amp. are safe or just the 120 volt ???
I have a pigtail that I can use to check the wireing threw the 30 amp plug, but what about the 50 amp. ?
I've never had a problem but I pretty much stay at well maintained parks because my wife uses a walker and can't deal with uneven ground.
40 foot DP Holiday Rambler
Class A
  • Bumpyroad's avatar
    Bumpyroad
    Explorer
    Apr 30, 2013
    if you aren't using a good 50 amp multi-function surge protector get one. $350 or so?
    bumpy
  • mscamping's avatar
    mscamping
    Explorer
    Apr 30, 2013
    Power can go bad in any park, no one can guarantee good power.. Not even the power company..
    I'll second the motion about Progressive Industries 50 amp unit.. We've had ours for about 7 years and the voltage was reading alittle high, I contacted them and they sent me a new board at no cost except for return postage for the old board($5.80).. That to us means alot, service after the sale and beyond.. This just happened last week.. Mike Mathews..
  • Mandalay_Parr's avatar
    Mandalay_Parr
    Explorer
    Apr 30, 2013
    HappyKayakers wrote:
    Even if the post tests good before you plug in, conditions can change. That's why I use a portable unit from PI all the time.


    I agree 100%. Get the Progressive Industries PT50C.
    I have seen problems develop after being parked and much damage done.
  • rgatijnet1's avatar
    rgatijnet1
    Explorer III
    Apr 30, 2013
    The ONLY thing those checkers will tell you is if the polarity is OK. A volt meter will tell you if the voltage is OK, but it does not tell you what the voltage will be once you put a load on it and start drawing 30 or 50 amps.
    That is the reason why many people have a device that continuously monitors the voltage and polarity under a load and shuts things down if there is a surge or if the voltage drops too low.
  • HappyKayakers's avatar
    HappyKayakers
    Explorer III
    Apr 30, 2013
    Even if the post tests good before you plug in, conditions can change. That's why I use a portable unit from PI all the time.
  • Rich_D_'s avatar
    Rich_D_
    Explorer
    Apr 30, 2013
    grandpalarry wrote:
    I bought one of the little yellow power post testers that shows if it's safe to use.
    My question is, if I plug into the 120 plug and the lights show OK, does that mean the 30 amp and 50 amp. are safe or just the 120 volt ???
    I have a pigtail that I can use to check the wireing threw the 30 amp plug, but what about the 50 amp. ?
    I've never had a problem but I pretty much stay at well maintained parks because my wife uses a walker and can't deal with uneven ground.
    40 foot DP Holiday Rambler


    Unfortunately that tester will not help you checking the 50 Amp, 240 Volt supply. You can make one that does or purchase one. Here is a link to a home made tester you can assemble for about $35.00.



    50 Amp Tester

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