I need to pass UF wire through a 3/8" wooden shed wall. Can I use a LB
conduit body to accomplish this?
There will be no conduit inside or outside the shed, just the UF wire.
The area where the body will be mounted is protected by a wooden fence
with about a 4" gap between the shed and the fence.
The plan would be to bolt the conduit body to the outside 3/8" of the
shed wall with the rounded bolt head inside the body and the washer/nut
inside the shed. I would use silicon sealant around both the bolt hole
and the hole for the LB body. The wire would be pulled up into the body
A quick test shows that the conduit body "sleeve" will extend past the
inside surface of the wall material by a small amount.
Code, AFAIK, requires conduit outside where it comes up the wall. Given
the 4" opening I'd probably do it the same way. I used the same
fitting where my UF comes out of the house and also into the garage.
On Tue, 12 Jul 2016 06:27:42 -0700 (PDT), DerbyDad03
Sure. No problem and like Ed says, protecting the wire going up the
outside with a piece of conduit is a good idea too. The code says it
"shall be protected where subject to physical damage". What are you
doing inside the shed?
On Tuesday, July 12, 2016 at 10:38:56 AM UTC-4, email@example.com wrote:
The only thing I am doing inside the shed is picking up power for a "water
SWMBO found a 20 gallon fish tank on the curb, bought a submersible filter
and put the tank on a stand in one of her gardens. The goldfish will be
The shed was wired (with your help) a couple of years ago. There is a box mounted on the inside of the shed wall for a motion-activated exterior
light. Once the wire is inside the shed, picking up power from that box
is an easy task. (Lots of room) The incoming power to the shed is GFCI
As far as protecting the wire, the only way it can be physically damaged
would be if an animal chewed through it. There is no access between the
shed and the fence, just a 4" space. Enough for me to reach in and mount
the body, but that's about all. It'll be about 4' from the ground, so an
animal would need to climb the wall/fence to chew on it.
On Tue, 12 Jul 2016 09:14:41 -0700 (PDT), DerbyDad03
Running it through the conduit is also a way to secure the wire. I
assume you will be burying it once you get to the ground.
I think I would fish the wire through and then mount the conduit body
Put some duct seal or caulking in the end of the pipe that you bury.
Otherwise it will be an ant super highway.
On Tuesday, July 12, 2016 at 12:35:16 PM UTC-4, firstname.lastname@example.org wrote:
Well, I wasn't planning on burying it. The fence in my yard is made of 8'
sections of board-on-board, similar to this, but with the posts on my side
of the fence:
The fish tank will located "2 fence sections" away from the shed and right
up against the fence. I was planning on attaching an in-use receptacle
to the 4x4 nearest the tank and running the UF wire between the slats so
that it lies on top of the lower rail support.
It seems to me that running the wire in between the slats makes it more
protected than buried. Is that not true/allowed?
On Tuesday, July 12, 2016 at 1:55:35 PM UTC-4, email@example.com wrote:
My original thought was to use conduit, but I suspect that this may not be
a long term arrangement. In addition, to run conduit at this time would
assuredly destroy many of SWMBO's plantings since this section of her
garden runs from the shed to the tank location, right along the fence.
Weaving the wire through the slats is doable with minimal damage.
If the fish tank works out this summer and she plans to keep in place for
next year, I may consider redoing the wiring in the fall once her gardens
have died back. As long as I'm "safe" with my plan for the summer, I'll move
forward and see what happens.
As always, thanks for the advice.
Is this envisioned permanent? If so, I'm like gfretwell, go ahead and
string the conduit. Either way, I'd place it on the bottom, not the top
of the rail; while not likely, something falling can theoretically still
hit it on the top plus it'll be less visible (my primary reason,
personally, if it were mine to do).
Wouldn't know that I'd say "more", certainly different possible hazards.
Not positive on Code on this one, inside a living area I _think_ even
with the fence slats, if it were on the top side of support it'd need
the protection of at least a guard strip as it is (at least as I
envision it) still possible for some object to fall on it between the
vertical slats. That _may_ not be so; just seems like it would be to my
way o' thinkin'...
On Tuesday, July 12, 2016 at 2:17:04 PM UTC-4, dpb wrote:
I addressed the permanence in another post: not sure yet but I can readdress
the installation in the fall.
As far as visibility, that's not an issue at this point, at least not on
my side of the fence. ;-) SWMBO's plantings completely hide the lower rail
of the fence and therefore the wire also. The other side of the fence also
has some plantings, but not as many as on my side.
No argument, but whatever guard I might use at this time would need to be
as flexible as the wire. Stringing conduit or a rigid guard will require
the removal of at least one section of fence to allow for access for
anything rigid to be fed between the slats. Removing a section would be
better done in the fall when the plantings die back. The same "damage to
plantings" holds true for attempting to secure the wire to the underside
of the rail.
I'll take my chances for now and readdress the installation in the fall
when we'll probably move the tank inside.
I've no disagreement with that; it's not a real hazard in the short term
certainly and certainly wasn't intending to imply it was (which I think
you recognized as well). _Might_ get 1/2" plastic conduit thru but just
sayin', not that you need go do it now...
On Tuesday, July 12, 2016 at 6:17:40 PM UTC-4, dpb wrote:
No problem. I didn't take it as if you were implying a dangerous situation.
the same page.
As far as getting anything in between the slats as the fence is currently i
nothing other than something as flexible as the wire will go through. Even
some feed, pull, feed, pull, etc. The rails are only 3/4” so everyt
hing is really tight. Nothing
rigid is going in there unless a section is removed and it can be fed throu
gh in a straight
Well, I guess I could remove all the slats on one side and just lay the con
duit on the rail,
but that's going to happen either. :-)
On 7/12/16 12:14 PM, DerbyDad03 wrote:
A bunch snipped.
Lots more snipped.
Squirrels and mice would be my concern. I've had to repair
cable squirrels have damaged by chewing on it. Shielded cable. I've
had to repair damage mice have caused after getting into an electrical
box through a 1/2" conduit hole.
This isn't the same but close enough for a town this size:
Bing image http://alturl.com/w53go
Mice got into the box mounted on the horizontal beam that is about 4'
below the pipeline. There were 3 pieces of coax like wire running
through the1/2" conduit hole. Someone got careless and didn't
install the cord retainer.
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