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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172 views

Can electrical conduit cross over a gas line?

I'm running conduit to my shop for a subpanel. The conduit coming out of my house crosses over my gas line (see pic). Is this allowed? I just put the conduit in and wondered if this will get ...
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53 views

Wireway or pull-box size for 2" conduit and 1/0 wire

I need to figure out what size box to mount in the corner where the wall meets the ceiling (actually, a soffit) inside my garage. I'm going to have one 2" conduit entering from the top, carrying ...
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56 views

In Wall Panel for Security System and Camera Cabling

I'm in the process of overhauling my home network and installing some door and motion sensors. I'd like to drop everything down into the Master bedroom, where I will install a panel that is set in the ...
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495 views

When running crawl space conduit, must the conduit be run through the joist via drilled holes, or can they be attached underneath?

I'm wiring my home for 110V and cat6e(48-0V). There is currently no wiring, just an air tight shell with interior studs exposed. There is a crawl space where I would like to run all of the conduit ...
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1answer
59 views

Wanting to add a ground wire for a sub panel replacement. Would like to use use nearby EMT

Updating electric in an attached shop. There are two sub panels, both fed 240 from the main panel in the house. The one has large aluminum conduit, with the conduit serving as ground. The smaller ...
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29 views

Chased Conduit Bend through Exterior Wall

I am in the middle of a re-wiring project, part of which requires installing new light switches on the inside of an exterior wall (plaster directly on brick). I will be installing the switch box flush ...
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1answer
164 views

Hot tub wiring plan - does my plan check out?

I'm looking for feedback on my electrical plans for a hot tub install. The space is in a 7 unit building located in NYC. The apartment is owned, not rented. I am planning on hiring an electrician for ...
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35 views

Workshop subpanel with possible solar backfeed

Needing to run power from the residence to the workshop. the need is 220v for the welder in addition to overhead lighting, the run is 375'....what wire and conduit size is needed? If in the future, ...
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122 views

150A for outdoors kitchen - wire size

I am working with the city to get the permits to build an outdoors kitchen with its own sub-panel. I decided to place it 100ft from the house. In my list[*] I have an electric tankless water heater, ...
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895 views

Does cabling between a mini-split indoor and outdoor unit need conduit?

I am installing a mini-split AC system where there are multiple indoor units connected to a single outdoor unit. For each indoor unit, there is a separate 4-conductor cable that connects to the ...
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27 views

Replacing old below-grade sleeves/conduit

Our boiler lines and hot water lines are running from building to building through four 6" diameter sleeves (about 12ft long). They appear to be clay pipe but not sure. Anyway, rainwater now gets into ...
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364 views

Electrical code - Conduit requirements for 50A copper cable through outside wall

Can anyone advise what (if any) sized conduit one has to use per code to have a 50A copper cable run from inside through an outside, concrete, wall? I live in Maryland, USA, if that is helpful. Would ...
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393 views

When do you use an aluminum vs PVC service entrace cap (weatherhead)?

When installing an overhead power service entrance, you can choose between metal conduit with a metal weather-head, or PVC conduit with a PVC weather-head. Is this 100% a matter of preference, or are ...
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568 views

Is ideal clear pulling lube okay for pvc conduit

I'm pulling NM 6 gauge 3 conductor (plus ground) through a 1 inch pvc conduit. I'm wondering if Ideal Clear pulling lube is okay. It says it's okay for all wiring types, but not if it's okay for all ...
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145 views

What is the purpose of this black felt on end of oven conduit?

I bought an oven which I am installing (reference this post for details) and I'm confused by the black wrap at the end of the conduit shown in the picture below. Is the wrap there just to prevent ...
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54 views

Updated How to secure electric mast to wooden siding

I need to secure a 10 feet service mast that will past through the roof on the outside. From grade to top of roof is just over 10 feet. Utilities company has stipulated that the mast must be at least ...
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34 views

Running Electrical Wires exterior to interior

I need a new line placed in a certain area of my house, (for a fish tank) but running it inside isn't a super realistic option, as it's a good distance and the joists run perpendicular to where I ...
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51 views

Wires through conduit instead of drilling ceiling joists

I am moving the washer & dryer upstairs in my house and will have a contractor hook-up the 10-3 and 12-2 wires to my main panel, but I am running the wires across my attic. Instead of drilling 23 ...
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14 views

SLB gaskets: water tight?

I bought 2 cast aluminium SLBs (1-1/4") for conduit from the same big box store the other day. They had 2 different gaskets in the removable cover however. One was the common black rubber/...
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54 views

Pulling out a broken spring wire from an electrical conduit

I want to install an fiberoptic drop cable in a 1/2" conduit with an existing phone line. The other side of the conduit is approximately 20m away in the utility duct of my apartment. Found a ...
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78 views

How is water getting onto the garage foundation sill in area near electrical penetration and weep hole?

There is a small amount of water that seeps in and shows up on top of the foundation sill on the inside of my garage in this area. It only happens during a hard wind driven rain. Do you think it is ...
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24 views

15ft long tubing option for outdoor shade fabric support suggestions

all. I am looking to create a structure that will support shade fabric to filter out some of the harsh sun, UV and heat in the desert. the area is approximately 15x26. Although this will be for a ...
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100 views

Entering a building with Liquidtight Flexible Non-Metallic PVC Conduit with a 90 degree fitting

Do I have to transition to hard PVC 90 with a cover to enter the building - https://www.homedepot.com/p/Carlon-3-4-in-Gray-Schedule-40-and-80-PVC-Type-LB-Conduit-Body-E986E-CTN/100404084? Or can I ...
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44 views

Conduit combining pipe and wire

I need to run a 1/2" black pipe for gas and about 4 electrical cables, on average 12/2 AWG through a 12" thick brick wall. Can I do it in a single tube of conduit and what should I use? Is just DWV ...
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42 views

URD Service entrance cable for tankless hot water heater

I'm planning on running 2-2-4 URD service cable to a tankless hot water heater. It's a long story, but I have to run from an outside load center underground and through the subfloor of a building ...
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39 views

Repairing earth link to conduit

The wiring in my property uses the conduit as the earth. I've checked the earth resistance and have no problems there. Unfortunately some of the ceiling lights are not properly grounded as the tabs on ...
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61 views

Service Panel and New Underground Conduit

So im remodeling and found out my electrical conduit that carries my lines from the my garage was rotted out. I had exposed electrical wires, still wrapped in sleeves, but exposed buried in the dirt. ...
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112 views

Tool to cut small diameter PVC tubing/conduit?

Goal I want to cut a lot of 1/2" inner diameter PVC conduit (the gray stuff, not white). Caliper measured 15mm ID, which is really 0.6", but I think it's sold as 1/2", or maybe the ...
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567 views

Commencement of Rewiring Room with EMT conduits inside the walls

I am rewiring an old house (50s) with romex to have the flexibilitiy to run it outside conduits when necessary and to further protect the wire from creatures plus making it easier to upgrade in the ...
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1answer
613 views

Adding electrical service to detached garage

Please let me know if this sounds correct- Sub panel fed from 80amp breaker in main building 200amp load center. Roughly 75' of 1" PVC conduit from existing load panel, under existing timber deck, ...
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2answers
138 views

Metal Conduit For Tankless Heater

I'm looking at getting an EcoSmart(or similar) electric on demand water heater in my home(WA state, not in Seattle). The sizing indicates I'll need 3x8ga(3x40A breaker) conductors. Long story short, I ...
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1k views

Run conduit from exterior sconce

We have a sconce on the outside of our brick house on a covered patio currently. I would like to run conduit from it to allow us to place an exterior fan on the same covered porch. My questions: 1) ...