Questions tagged [conduit]

Electrical conduit is used to protect electrical wires, when a simple jacket alone is not enough. Conduit may be metal or plastic (PVC). Use with the [electrical] tag.

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Fittings for conduit passing through ceiling/floor

A follow up to this question: Running Coax cable to the upper floor If I cut a hole in the ceiling of my dining room and then another in the floor so I can run a conduit from the upstairs all the way ...
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Can I use THHN/THWN-2 within a lamp post?

Foreword: I've been using UF wire for about 10 years now, and I've really grown to hate it. It's hard to work with, hard to strip, and hard to pull through conduit. I prefer all my underground wire to ...
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2answers
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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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How do I get all these wires up from the basement to the attic?

I'd like to run new cabling for data, voice and tv but I'm having a hard time figuring out how to get some of the wires up to the attic for the 2nd floor and would like some advice. I've run cables, ...
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1answer
243 views

Can the sheath of nonmetallic cable be removed prior to entering electrical metallic tubing (EMT)?

Can 2 romex cables be stripped before entering an EMT to allow more conductors in a 1/2" EMT? How would you transition from Romex to individual conductors going in or out of the EMT? Or is that ...
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1answer
1k views

How should I connect conduit in the wall to conduit on the ceiling?

In running conduit for a subpanel, I'm not sure how to make the transition from conduit running vertically in the wall cavity to running out from the wall along the ceiling. I could notch the top ...
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2answers
847 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 ...
3
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1answer
3k 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 ...
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2answers
3k 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
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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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4answers
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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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1answer
754 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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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
2k 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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1answer
551 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 ...
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3answers
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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 ...
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646 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. ...
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2answers
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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, ...