Power thru a pond

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bobmarz2

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Medina, Ohio,Medina
I would like feed back from someone that has completed a similar installation or has some incite on this.
I am installing a 100A sub panel from a house thru a pond to the other side for a pavilion. I do not have the option to run around the pond. Here is what I was thinking.
1 1/2 inch ridge raceway from the house, 6 inches deep and 75 ft length to the pond.
In the pond run 1 1/2 inch non metal PVC seal tight,160 ft. Pond depth about 12 ft. To help sink the initial installation of the raceway in to the mud, I thought I would tie weights to the raceway.
On the other side of the pond, install 1 1/2 inch ridge raceway 30 ft, 6 inches deep to a weather 20 circuit lug only panel, inside a wooden cabinet built for the panel.
Install three #2 copper xhhw and one #6 copper xhhw wire for panel feed.In the house install a 100A GFI breaker.

Panel usage will be for a pavilion with misc. power items, small kitchen, lights etc.
My concern is the raceway in the pond to protect it from beavers, muckrakes and misc,. pond animals that like to chew.
Of course I am trying to be as cost effective as possible and doing a safe and professional installation.

I would greatly appreciate your feed back.
Bob
 
Are you sure you can't go around the pond? I take it you planned on rigid PVC? Why not run it all the way.
You seem to have some burial depth issues. You'll need a little more than 6" if not covered by concrete.
Ive seen something done like this before but I'm way to skiddish about putting line voltage through a pond especially if it can be swam in! Although it would be interesting to hear from someone who knows about cabling appropriate to run through bodies of water. After all, they do get high voltage from land though the lake to an island.
 
I supposed there is no way to be over head at any point?
Boring to the other side with ridged would help me sleep at night.
Going into the water with 100 amps sounds like a 100 amp gfci ocpd that I would want to test every morning.
 
The question is... can you run two wires in a copper pipe in water and two wires for A and B inside for 480v, then use the grounded pipe to make the 3rd corner of triangle to get moar power and run motors and stuff?
I don't think amperes will leak outside even if water got inside.
 
Electric-Light said:
The question is... can you run two wires in a copper pipe in water and two wires for A and B inside for 480v, then use the grounded pipe to make the 3rd corner of triangle to get moar power and run motors and stuff?
I don't think amperes will leak outside even if water got inside.
Click to expand...
But the conductors you use must be rated for wet area or direct burial, regardless of what you put them in.

The NEC allows you to use the copper or other raceway for the EGC but NOT for the grounded conductor. Sorry.
 
mopowr steve said:
Are you sure you can't go around the pond? I take it you planned on rigid PVC? Why not run it all the way.
You seem to have some burial depth issues. You'll need a little more than 6" if not covered by concrete.
Ive seen something done like this before but I'm way to skiddish about putting line voltage through a pond especially if it can be swam in! Although it would be interesting to hear from someone who knows about cabling appropriate to run through bodies of water. After all, they do get high voltage from land though the lake to an island.
Click to expand...

I think when he said "ridge raceway" he meant RMC. That could be 6 inches deep or even 4 inches deep if under a 4 inch slab with no vehicular traffic.

I think I would want something specifically intended for submersion if it will be run in the pond.

Running 1-1/2 RMC at only 6 inches deep may not be as easy as it sounds, unless you have a very level landscape to cross.
 
Conductors are run on (and/ or under) the seafloor of navigable waterways. They even cross oceans.

What do they use for that? I believe I recall a previous thread on here a few years back on the subject.
 
WOW--I think I would try for a bore from start to finish--265 feet and that would make an easier grade for the bore machine--and then back pull with 2 inch HDPE
 
Consider cable

Consider cable

Look at the marina article. You might consider type G cable. It recommended for Marinas. [Yes, I know it is rated 2kV, but that just gives you a higher safety factor.]
 
Forgive me for oversimplifying things, but we all run underground services and feeders that are submerged in water all the time. How about schedule 80 PVC the whole way, good joint prep using primer, dug to proper depth as far out into the pond as the backhoe can reach? Fill it with water and it will sink.
 
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