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Posted by RBM on February 11, 2007, 12:19 pm
If your service disconnect is not near the point that the entrance cable
enters the building, such as in this case, you must have a disconnect on the
outside of the building. From the location of that disconnect, you need to
separate the neutral from the ground, so your panel will require two hots,
one neutral, and one ground, from the outside disconnect to the remote main
panel
> Hi All. Thanks so much for sharing your great experience and
> knowledge. Here's one I am not too sure about.
>
> We have an old house that started with a temp/mobilehome pole with the
> meter base and shutoff on it. It apparently rotted and fell over
> during the last hurricane and had just been left to rot. The boxes
> and connections look rusty enough to need replaced. The building has
> been added to and added to and finally is a house with a crawlspace.
> It's in pretty bad shape but we want to fix it up. (We've already
> answered the WHY question at least 1000 times)
>
> First thing we need to do is get the electric turned back on, so we
> talked with the electric co-op and also got the electric permit from
> inspection. So the co-op tells us we are responsible for installing
> the mast/riser, the meter base, the shut off and then running to the
> panel.
>
> The existing panel is now located in the middle of the house, in a
> hallway, so we are gonna turn it around and it will be in the utility
> room. But still 25 feet from the meter base. Electric co-op said
> the 25 feet run was OK in conduit run through the crawl space.
>
> We have done the service drop thing twice before. But have always had
> the box on the opposite side of the wall, never 25 feet away. The co-
> op said it must be 4 wire all the way. Got me there.
>
> Will someone please (sorry, feel like I am asking how to hold my fork,
> but this 64 year old is more cautious than the 25 year old was!) walk
> me through the 4 wire wiring. The cutoff which will be located
> outside right under the meter). The mast will be against the outside
> wall and then through the overhang with the metal conduit pipe. I
> have opened up the inside wall to add additional support for the mast
> pipe to be attached to. So the course will be: Electric co-op to
> the mast. My run will be from the mast; into the meter base, through
> and into the cut-off switch, then out of the cutoff through down 6
> feet through conduit then a turn into and through the crawlspace wall
> in conduit, then running in conduit the 25 feet to a turn at the base
> of the panel then up through the wall and into to the panel.
>
> I think it is the fourth wire and neutral and ground that is getting
> to me. Or it just might be when I was 25 I knew I would be there if
> anything went wrong! Now I am not too sure how long it might be to go
> wrong!
>
> Thanks all,
> Dave
>
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