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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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Can Romex (NM-B) cable be run through conduit?

A few days ago I asked an electrician if I could run cable through conduit - he gave me a funny look and said "No, Romex is not allowed in conduit." When I searched online, there seems to be a wide belief that Romex cannot be run through conduit,…
BlueRaja - Danny Pflughoeft
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Why can I not assemble conduit around cable, but must pull it after assembly?

I have seen a number of answers here from our esteemed electricians about running wiring through conduit, and many of them include a warning similar to: You're not allowed to piece the conduit together over the wires - they must be pulled only…
FreeMan
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How to future-proof a long cable run

I'm starting on a project that will involve digging a long (roughly 150-200 meter) trench from my house down to the road. The trench itself will be a considerable expense and so while the ground is open, I plan on laying additional conduit(s)…
Jack Lloyd
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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 the effect that its use is mostly confined to…
Jeremy W. Sherman
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How do you mount conduit to a wall so that it stands off a standard box distance?

I'm running 1/2" EMT conduit between single-gang surface-mount boxes. The holes for the boxes are slightly set away from the wall so that the conduit does not mount flush against the wall. I have found various types of single screw and double screw…
KJ7LNW
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How many CAT6 cables can fit in 3/4 conduit?

I was planning to get 3/4" conduit (Carlon ENT/Smurftube) to run network cables through the house. Just how many CAT6 cables can safely fit into 3/4" conduit?
Slav
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Can an incoming optical fiber cable be wired internally in a house's walls?

I am building a new home, and want to get fiber internet installed in it. In my current home, the fiber is wired externally on walls, above doors and finally into the living room through a drilled hole. I want this wire to be installed internally…
Johnnytest
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Is there a need to replace wiring if I tripped the microwave oven when drilling through drywall?

While drilling through drywall in bathroom to install a handicap bar to studs, I later discovered that the microwave oven breaker had tripped. Apparently one of the drill holes had missed a stud and went through PVC pipe in the wall (this was…
Grant
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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 heating system. (they are no longer connected +…
A.R.
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How do I place electrical conduit under a creek?

Short version: I need to run 4" PVC electrical conduit under a 4' wide creek where the water is usually 1-4" deep. Code in this area requires cable in conduit to be 18" deep. I do want to keep it that deep or, if I can manage it, maybe 24" deep so…
Tango
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Can I use a hose clamp to ground a wire to EMT?

Question: What are the rules for how to attach a wire to an already grounded EMT conduit? Can I use stainless steel host clamp and tighten down? Background: I was installing a metal box for a light switch in our attic and had to terminate existing …
KJ7LNW
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Is there an NEC-compliant way to cross this 40 inch gap between a PV array and my house without digging?

I'm working to finish up my DIY ground-mount solar project, and I need some advice for one of the final connections. For reference, the project is all done with micro-inverters at the panel so we're only talking about an AC connection, and I live…
David Hay
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How can I adapt a wall outlet to suface mount conduit?

I have a single gang in wall outlet in my basement. I would like to adapt it into surface mount EMT conduit to get an outlet at a different location. Ideally I would be able to keep a plug at the current location, but its not critical. Once site I…
JBCP
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Run single strand of K&T wire through conduit under floor?

I have a contractor putting a pocket door in a wall in our 1925 house. He removed plaster from one side of the wall and exposed a single strand of Knob and Tube wiring right where the door needs to go. This conductor was feeding a 3-way-switched…
Jasman
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Best way to bring wire from flush-mount panel to surface-mount conduit

I often see people with a flush-mount panel in their garage who want to install some EV charger or NEMA 14-50 receptacle that requires new wiring from the panel. Unless the desired charger / outlet location is in the same stud bay as the panel (e.g.…
peter
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