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Floating Dock mounted transformers, GND #150475
05/01/05 12:23 PM
05/01/05 12:23 PM
R
rather_large_ben  Offline OP
Member
Joined: Oct 2004
Posts: 18
Hello, I am new here and I'm an electrician in California. On this job, we are mounting transformers (480V delta to 208V wye) out on a floating dock system. There is an appropriately sized equipment ground conductor coming in with the 480V conductors feeding the line side. The floating dock system is all constructed of 2" X 2" X 1/8" wall aluminum square tubing with plastic floats bolted to the bottom and deck boards screwed to the top. My question is, what is the best way to install the grounding electrode conductor? My idea was to attach it directly to "building steel" as I would in a building, then have a monster ground conductor bonding the whole dock system to the ground rod on shore (where the 480V comes from). The city is suggesting we run another ground wire parrallel to the equipment grounding conductor, or just upsize the equipment grounding conductor and use it for both the equipment ground and the grounding electrode conductor. What do you think? Thanks brothers and sisters, Ben

Arc Flash PPE Clothing, LOTO & Insulated Tools
Re: Floating Dock mounted transformers, GND #150476
05/03/05 08:06 PM
05/03/05 08:06 PM
R
rather_large_ben  Offline OP
Member
Joined: Oct 2004
Posts: 18
What? Nothin? I know I put this post in the wrong section, but still thought I might get some help! [Linked Image]

Re: Floating Dock mounted transformers, GND #150477
05/04/05 01:23 AM
05/04/05 01:23 AM
Trumpy  Offline

Member
Joined: Jul 2002
Posts: 8,260
SI,New Zealand
Welcome along Ben,
I've moved this to a more appropriate area.
Please find it posted in the NEC and Other Code
Related Topics Area.

Cheers,
Mike.
[Linked Image]

[This message has been edited by Trumpy (edited 05-04-2005).]


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