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15 amp shore power, 30 amp cord demanded

Marine Electrical

Section - My marina offers mostly 15 amp service dockside with regular 3-prong 15-amp style receptacles. I ...
   
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  1. #1
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    Sunsetrider's Avatar
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    Default 15 amp shore power, 30 amp cord demanded

    My marina offers mostly 15 amp service dockside with regular 3-prong 15-amp style receptacles. I do not have AC power on board except for a battery charger that comes with 3-prong power cord. The marina requires us to use the normal Marinco-type yellow cords that come with a 30-amp locking plug. The use of that cord requires me to place a 30-to-15 adapter on each end. Is there a point to this? the adapted plug on shore can slip out even more easily than a normal 10 gauge cord with a regular 3 prong plug because it is heavier and bulkier.

    Is there a reason for this requirement other than the quality of the cord itself (which can be achieved otherwise)? Is this a legal requirement or an insurance requirement?

  2. #2
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    Default 15 amp shore power, 30 amp cord demanded

    Typically, that requirement would be accompanied by the banning of any adapters. The idea is to have a positive locking connection to prevent disasters. Imagije how much damage could be caused if the "boat end" of your shore power cord were to fall in the water while the "dock end" remained plugged in! It is a bit of an expense, but I would encourage either installing proper connections at the boat or pulling the batteries and charging them off-site. If you haven't seen this "Hot Docks Webinar", it's worthwhile to watch it... Very enlightening!
    Last edited by Cap'n Ray; July 24th, 2015 at 13:54.

  3. #3
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    If they are only providing standard house style 15 amp circuits I don't see any reason for that style cord unless I am missing something.
    ~ on the hook ~

  4. #4
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    Default 15 amp shore power, 30 amp cord demanded

    I agree Tim. My only guess would be insurance (their policy may have a liability exclusion of the marine cables aren't being used) but the adaptor seems to eliminate most of the safety features inherent in the cable in the first place!

  5. #5
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    First post. Found the site via TapaTalk.
    In my experience, the 120VAC plugs are placed as a convenience only for power tools. They are not to be used as a power source for a boat.

  6. #6
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    good point, I was under the impression that that was all they had, no 30's or 50's
    ~ on the hook ~

  7. #7
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    Thanks for the video. Very informative.

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