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1answer
2k views

What are my options for running feeder cable into an exterior main panel?

I'm trying to connect a 4/3 nm feeder cable into to my exterior mounted service entry / main panel. There is already what looks like a 1 1/2" rigid conduit from the crawlspace through the rim joist ...
4
votes
3answers
489 views

What material to use to close a too wide wire tunnel?

During the cold days I noticed a little draft coming from the light switch next to my house door. Removing the switch revealed that the tunnel for the cables was widened to fit the cables for the ...
4
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2answers
928 views

Is there any NEC code requirement for how far off the floor Category 5 wiring must be run?

I am currently running conduit for Cat5e cable in the home office I am finishing off. Are there any rules in the code for how far off the floor Category 5 wires in conduit must be run?
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2answers
564 views

Do I need junction boxes where conduit containing data cables terminates?

I'm going to be running 1" blue PVC conduit from all my low voltage boxes to a structured wiring panel. My wiring panel will chase to the attic where necessary and I was wondering what the best ...
2
votes
2answers
5k views

How do I connect the wires inside a conduit junction box?

I have some wiring in my garage (done by a sparky believe it or not...) where the wire is quite loose, just tacked to the wall with clips, and there are a few junction boxes as well as the usual ...
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2answers
2k views

Should I be able to run some 1.5" PVC chase conduits from attic to basement next to a cold air return?

I have a new home I just moved in to and rather than having them put this stuff in ahead of time (silly me) I'm now trying to do it now. Here is my situation... I live in a 2 story home with a ...
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3answers
2k views

Should I be worried about this gap in electrical conduit?

Background My project this weekend is to get my garage repowered so my tenant will be able to plug his car in during the winter months. When I bought my house it was recently renovated by house ...
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1answer
16k views

How should I run speaker, HDMI and electrical wiring for my ceiling mounted projector theater room?

BACKGROUND: New house built 5 years ago. I have a basement theater room with 12 foot drywall ceilings that have HVAC conduit and recessed lighting (in other words there is some space behind/above ...
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4answers
3k views

How do I widen a hole in wood for flex tube?

I bought some 1" smurf tube so that I could run coax, ethernet, and speaker cable to various low voltage outlets in my house. I used a 1-1/4" speedbor bit to make a hole in the floor from my crawl ...
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votes
3answers
16k views

Why is ENT rarely used for electrical wiring?

As best I can tell, the National Electrical Code 2011 allows electrical non-metallic tubing ("smurf tube" or ENT) to be used for running 120 V electrical wire. But everywhere I look, I see remarks to ...
11
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2answers
2k views

Can I use old abandoned iron pipe as electrical conduit?

I have an older house (1920) and I have been planning on doing some rewiring to get rid of some k + t stuff. Anyway, I just noticed today that there are some irons pipes that used to be part of the ...
8
votes
1answer
560 views

How should I install a signal cable duct from new home office to a wiring closet?

I'm constructing a new home office and rather than having fixed cables from the (existing) wiring closet, I want to have the flexibility to add/remove/change cables in future, so I've been looking at ...
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2answers
4k views

How do you protect romex at the end of an EMT run?

Sometimes you need to run a circuit through both protected & unprotected space. For example, you might put a recep in workshop (unfinished walls = unprotected) over a crawlspace (protected). To ...
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1answer
1k views

How do I insulate around conduits and into difficult edges in my attic?

I am thinking about adding a little over a foot of insulation to my attics. I understand that there shouldn't be gaps between fiberglass batts (I read that this can reduce efficiency by 25%, whatever ...
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5answers
6k views

Does a grounding wire from a breaker panel to an outside grounding rod need to be in conduit?

I've got a breaker panel in my detached garage (it is not a sub-panel, but is a primary forked off just past the meter). The panel seems to be wired correctly- the neutral and ground bars are tied ...
2
votes
1answer
386 views

What is the safe/proper way to run non-metallic conduit between floors?

I need to run a CAT5 line and a 22/4 alarm wire from my 2 story attic to the first floor. I have access to the interior of the walls (I will re-dryboard). I'd like to run carlon ENT from the attic ...
5
votes
3answers
1k views

Running electric cables in basement shop

I am setting up a workshop in the unfinished area of my basement. I need to run a couple of electrical outlets and would like to run them along the block walls through grey PVC. Will this be a ...
3
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3answers
3k views

What's the correct way to pass wire to exterior electrical box?

I'm doing some remodeling in our basement, and came across the following (see pictures). It looks like the contractor simply wrapped tape around the conduit to secure the box to the wall. How are ...
2
votes
2answers
1k views

What extra conduit should I include in a utility trench?

I'm putting in a trench with electricity + water + phone from the street to a future house site. The trench will be around 150' long. The electricity and phone will each be in their own conduit, ...
2
votes
4answers
7k views

How does the cost of conduit compare to conventional wiring?

I know I want to future proof my new construction by installing conduit instead of trying to guess what wires I'll want in 50 years. But I want to understand the cost of conduit vs. non-conduit, at ...
5
votes
2answers
538 views

How do I set up a wiring closet that connects to the exterior of the house?

I'm looking to build a central wiring closet for ethernet, phone, and co-ax. I would like this closet to have a single pipe to the exterior of the house, which service lines can come in through. ...