Private Dock w/ Boat Hoist

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brantmacga

brantmacga

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Georgia
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n/c residential; house rough is done, moving on to dock on lake w/ boat hoist. article 555 says it does not apply to private dwelling docks or something like that. other than the usual GFI protection and so forth, are there any other codes i need to be aware of? i did look but couldn't find any. i haven't done one of these before. plan was to trench PVC from the house to the dock. there is a sea wall on the dock that is backfilled to level off w/ the grade of the house. the pvc will be 18" u/g, and i planned on having it come right out of the bank and run along the side of the sea wall and up to a sub-panel on the dock. receps and lighting will be installed using pvc. i am submitting a primitive drawing i made on MS Paint. thanks if you have any additional info.

dock.JPG
 
I used to do a lot of these in Florida and I have rarely seen the sub-panel mounted on the dock. I think it had to do with flood plain. Anyway, everything else looks good to me
 
Some time back I asked a question similar to this one. But I had a floating dock. The owner wants to do this project come spring.

My plan was to run PVC buried from a sub panel located in the boathouse to a gazeebo. Mount a PVC or FS box there? The gazeebo is on a foundation and is the achor for the bridge. Then run (w)? rated cable underneath the bridge and underneath the dock. Then come up through the dock floor 18" and mount a METAL box on one of the docks verticle square supports. Then finish up with EMT. The reason for the EMT is apperarance.
Can anyone tell me if this in compliance. Article 555 does not really help me, and is not for residential.
I know this must be GFCI protected, and I plan to use a 30 amp two pole GFCI breaker for the circuit. Do I need a disco at the gazeebo? I still have no idea what type of cable will be required ......Thanks John

ps.....I am hoping SOW cable will meet the requirement?
 
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I dont know if this applies in your situation but the 2008 code reguires 240v hoist for lift to be gfci protected. At least thats what I understood in my continuing education class. I dont have new book yet.
 
It's been my experience that emt and boat docks or water in general do not mix. I agree with you that emt looks better until the water gets to it. I don't know where you are in SC but if it's salt water that you're dealing with that emt won't last long at all. We always used pvc strapped every 18".

Also, I recall using mostly G cable when it came to any floating dock application. If you want it to last use stainless everything (screws, boxes, etc )
 
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I have done a few residential boat docks and as far as the code is concerned I just treat it like any wiring for outdoors and not have had a problem with inspectors. I have done wiring in PVC and used UF cable as well. The UF is definately easier to use, but as you can guess its hard to pull a new conductor in UF. I have been told by others around here that the UF is better because it can dry out as opposed to PVC which will hold the saltwater. Stainless steel fasteners ar a must. I have put panels on the dock due to some docks having been over 300' long.
 
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