dock neighbour's shore power cord?

Jan 4, 2006
7,178
Hunter 310 West Vancouver, B.C.
I am thinking there is a 15 Amp outlet right here
But I ain't got an extension cord that will reach from Vancouver to Chesapeake Bay, Fort Monroe :facepalm:.

Did you notice the length of the boat in the slip fed by this 15A box ? I keep meaning to look at the smaller boat slips in our marina to see what sized boxes they have.
 
Oct 26, 2008
6,241
Catalina 320 Barnegat, NJ
In our marina built 1967 slips 30' and under have 15 amp, 35' has 30 amp and >40' has 50 amp.
Same as our marina. Lots of 15 amp services for 30' & under. I had to put an adapter on my 30 amp cord to plug in when I had my Starwind. Now I'm in a 35' slip with 30A service. I didn't think it made sense that my 30A system plugged into a 15A pedestal, but as long as I avoided nuisance trips, it didn't seem to matter.

The subject of this post seems to be about a 30A pedestal necking down to a 15A capable cord ... not good under any circumstance. :(

I still use the 30A-15A adaptor on the hard, though. The services on shore where the boats are stored for winter are all 15A services.
 
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Mar 26, 2011
3,677
Corsair F-24 MK I Deale, MD
There is no ABYC, NEC, or UL standard for shore power below 20A. By code, the 15A receptacles are for attended use only, for tools and similar. Does anyone know the reason there is no code for lower amps?

Marinco does sell 15A inlets for bass boats, but the assumption is that they are used for charging batteries while on the trailer.

And there is still the subject of ice melters with a #14 cord, which present pretty much the same hazard as a boat. They move continuously and are certainly not inspected frequently. Many are plugged into 30A-15A adapters. If they are plugged into 15A, you can bet they are not particularly weather proof.
 
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Oct 26, 2008
6,241
Catalina 320 Barnegat, NJ
By code, the 15A receptacles are for attended use only, for tools and similar. Does anyone know the reason there is no code for lower amps?
I can see that ... I didn't have a fridge so I don't recall leaving it plugged in when gone, I did use it for shore charging & tools, but only when at the boat. The reason I never got comfortable leaving it plugged in was the virtual absence of weather protection. a few neighbors left plugged in but they were daily visitors.
 
Jan 1, 2006
7,477
Slickcraft 26 Sailfish
Thinwater's post regarding attended use with the 15A receptacles, match what one yard, and the electrician who wired it, say. They were really for the yard workers and not the boat owners. It was a violation of yard policy for boat owners to use them but rarely were there any consequences.
 
Aug 19, 2021
505
Hunter 280 White House Cove Marina
But I ain't got an extension cord that will reach from Vancouver to Chesapeake Bay, Fort Monroe :facepalm:.

Did you notice the length of the boat in the slip fed by this 15A box ? I keep meaning to look at the smaller boat slips in our marina to see what sized boxes they have.
My picture was an edit from the original post. The black cover lower left on the pedestal.
 
Oct 26, 2008
6,241
Catalina 320 Barnegat, NJ
They were really for the yard workers and not the boat owners. It was a violation of yard policy for boat owners to use them but rarely were there any consequences.
That would make sense when they are in the yard field where boats are stored. At our marina, there is clearly a separate 15A outlet for each slip in the smaller sizes, on the docks or at each finger pier (and they are barely covered - many covers are missing. It couldn't possibly have been the intention in our case and I often wondered about the safety. The marina hasn't seen improvements in so many years, but it seems changes are beginning to be in the works. Perhaps they intend to upgrade the electrical systems.
 
Jun 25, 2004
479
Hunter 306 Pasadena MD
Fair enough.

What are you going to tell him (please post it here too)? I'm assuming your pedestals do not have 15A weather proof outlets. And don't use the words properly or meeting code unless you narrow it down. If not, you are asking him to leave and not providing services for smaller boats.
  • If you expect him to provide the fusing at the other end of the cable, define what is acceptable to you.
  • Define what type of adapter is acceptable.
Even the pretty MW adapters are not weatherproof or restrained. 15 A inlets are available, but most a re not weatherproof or restrained.
View attachment 208323
I have an adapter like this, but the other way around. Female on the big plug, male on the small end. It's great for when you're on the hard and you want to supply power to the boat just to give the batteries a charge while you're there for a few hours. To make sure they're topped off before you launch for example. You run a long (heavy duty) extention cord to the adapter and plug it into the boat (screwed in with the black outer ring). Very handy.
 
Jan 4, 2006
7,178
Hunter 310 West Vancouver, B.C.
My picture was an edit from the original post.
You're right. Didn't look that closely at the original photos. Pretty well guaranteed that's a 15A outlet under that cover. Yank the existing 15A male plug and insert into the 15A female supply socket. If the boat tries to pull more than 15A, it's SOL.
 
Jul 26, 2022
18
Catalina 24 Olney Springs
A 30 amp to 15 amp adapter is safe. Remember 30 amps at 220v is two 15 amp 120 volt circuits.
No what I see in the pics is not safe. It presents a shock hazard, especially if wet. The cord caps shown are for interior use only. A nice waterproof GFCI would be nice. Safety first.
As fore raising hell and acting like a jerk? They may not understand. I find it best to explain and teach before I go into Sergeant mode. I am a retired IBEW electrician.
 
Jan 11, 2014
12,754
Sabre 362 113 Fair Haven, NY
A 30 amp to 15 amp adapter is safe. Remember 30 amps at 220v is two 15 amp 120 volt circuits.
That would be true for 2 phase 220v. Our boats don't have 220, they have single phase 110v circuits that typically draw 30 amps max. Some larger boats have single phase 110 50a or multiple 30a or 50 amp circuits.
 
Mar 26, 2011
3,677
Corsair F-24 MK I Deale, MD
You don't get two phase 240 V power (120 degrees out of phase) from using A and B phase in household wiring, you get single phase 240 V(180 degrees).

120 V + 120 V = 240 V. Volts are abrivieated V, amps are abbreviated A.

30 amps is 30 amps on each leg, not two 15 amp legs. Both legs are tripped, because tripping only one leaves the other 120V from neutral.
 
Jun 11, 2004
1,734
Oday 31 Redondo Beach
What I find odd with this whole thread is, I am thinking there is a 15 Amp outlet right here




.
You know, I didn't even notice that. I know my box doesn't have it. To my knowledge there are no 15 amp outlets on the dock. I'll look at it closer next time I am down there. It may be a telephone outlet.

Anyway, a few days ago I sent an e-mail to the marina with a picture pointing it out and suggesting it may be unsafe and the adapter is gone today when I got back from a few days out.
 
Aug 19, 2021
505
Hunter 280 White House Cove Marina
You know, I didn't even notice that. I know my box doesn't have it. To my knowledge there are no 15 amp outlets on the dock. I'll look at it closer next time I am down there. It may be a telephone outlet.
Now I feel silly, because it phone line or for that matter a cable connection never crossed my mind....
 
Jan 4, 2006
7,178
Hunter 310 West Vancouver, B.C.
Do I correctly understand you to say the marina removed the screwball homemade adapter ?

1661059052867.png


Did they leave the male end of the yellow extension cord laying on the dock or plug it into the possible 15A outlet which @Crusty Ol Salt had referred to ?
 
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Jun 11, 2004
1,734
Oday 31 Redondo Beach
Do I correctly understand you to say the marina removed the screwball homemade adapter ?

View attachment 208556

Did they leave the male end of the yellow extension cord laying on the dock or plug it into the possible 15A outlet which @Crusty Ol Salt had referred to ?
The screwball homemade adapter is gone and the yellow (and pink) extension cords are still there (not plugged into anything but the female side of the pink one still runs up to inside the boat).
 
May 17, 2004
5,554
Beneteau Oceanis 37 Havre de Grace
The screwball homemade adapter is gone and the yellow (and pink) extension cords are still there (not plugged into anything but the female side of the pink one still runs up to inside the boat).
Sounds like management didn’t put it there in the first place then. If it was their doing originally I think they’d have taken it all away at once.