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Go Back   SailNet Community > On Board > Gear & Maintenance > Power Cord/Adapter Issues
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Thread: Power Cord/Adapter Issues Reply to Thread
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Topic Review (Newest First)
09-07-2013 09:22 PM
steve77
Re: Power Cord/Adapter Issues

I just picked up a SmartPlug this weekend. I haven't installed it yet but did disconnect the old receptacle and connected the SmartPlug receptacle to see how hard it would be and it wasn't difficult at all. I'll have to drill new holes for the receptacle mounting plate since the screws are a different size but other than that it seems like a quick fix.
09-07-2013 08:15 PM
Bob142
Re: Power Cord/Adapter Issues

After the second plug failure...I cut the burnt end off and pulled the cord into the boat right to the breaker panel and attached securely...cord not as long but a small price to pay for peace of mind...
09-07-2013 07:49 PM
boatpoker
Re: Power Cord/Adapter Issues

The only marine "boots" I have seen are molded, one piece units that cannot be "pried " back. On the other hand I have seen any number of plugs from the local harware store attached to old power cords. This is a foolish thing to do.
09-07-2013 07:19 PM
npettett Pry the boot (takes a little time) on the plugs/cords that are getting hot and they will have loose screws on the connections on the back of the plug. With the hot and cold temperatures and general use the screws will loosen, resistance increases. Tighten the screws once a year, problem solved.
09-07-2013 05:41 PM
boatpoker
Re: Power Cord/Adapter Issues

Quote:
Originally Posted by ebs001 View Post
There is an inherent design flaw in the 30 Amp female plug. The problem always occurs on the neutral side on the female end of the 30 amp cord set or the neutral side of the pedestal receptacle.

When plugging in the cord at the boat end the power should be off at the pedestal. The cord needs to be twisted clockwise and secured in position with the plastic threaded ring. The male end at the pedestal needs to be secured in a similar fashion. Then the power can be turned on. The overheating of these connections is caused by improper contact.

The receptacle blade connection really needs to be redesigned so that there is a positive click when twisted into place, however; I don't think that's ever going to happen. So in the mean time CD's suggestions are a very good solution.
Glad you mentioned this. Few boaters turn off their AC mains or shore side breakers before connecting or disconnecting. This causes arcing as the plugs are jiggled back and forth and can send battery chargers and inverters into fits.
09-07-2013 05:37 PM
ebs001
Re: Power Cord/Adapter Issues

There is an inherent design flaw in the 30 Amp female plug. The problem always occurs on the neutral side on the female end of the 30 amp cord set or the neutral side of the pedestal receptacle.

When plugging in the cord at the boat end the power should be off at the pedestal. The cord needs to be twisted clockwise and secured in position with the plastic threaded ring. The male end at the pedestal needs to be secured in a similar fashion. Then the power can be turned on. The overheating of these connections is caused by improper contact.

The receptacle blade connection really needs to be redesigned so that there is a positive click when twisted into place, however; I don't think that's ever going to happen. So in the mean time CD's suggestions are a very good solution.
09-07-2013 04:05 PM
boatpoker
Re: Power Cord/Adapter Issues

Quote:
Originally Posted by Seaduction View Post
When you leave dock to cruise, you unplug from the dock side and coil the cord and hang it on the boat somewhere, right?
Correct.
09-07-2013 01:50 PM
Seaduction
Re: Power Cord/Adapter Issues

When you leave dock to cruise, you unplug from the dock side and coil the cord and hang it on the boat somewhere, right?
09-07-2013 01:39 PM
boatpoker
Re: Power Cord/Adapter Issues

Quote:
Originally Posted by Seaduction View Post
Thanks, I knew about wire nuts on boats. Where have you placed the buss bar?
The bus bar is inside a locker that opens from inside the cabin only and is within 12" of the clamshell which the cord passes through. From the bus bar to the panel is another 3'. All within ABYC standards.
09-07-2013 01:32 PM
Seaduction
Re: Power Cord/Adapter Issues

Quote:
Originally Posted by boatpoker View Post
Wire nuts are prohibted by ABYC.

Hard wiring to the boat means the boat end of the shore power cord - Appropriately sized ring terminals on each incoming conductor to a bus bar (covered) then from the bus bar to the panel, again with appropriately sized ring terminals.

Simple and effective You eliminate six connections (on a three wire conductor) and no longer have anything to come loose.
Thanks, I knew about wire nuts on boats. Where have you placed the buss bar?
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