2014年8月22日 · Surface PVC on the exterior of a building's wall is fine. But, remember that PVC expands and contracts more than steel/EMT with heat differential. It can look really ugly when the PVC bows and kinks between the 2-hole straps. Sure, an expansion fitting can be used, but I would stick with steel/EMT for the exterior wall for esthetics.

2018年9月8日 · Table 352.30Support of Rigid Polyvinyl Chloride Conduit (PVC) Conduit Size Maximum Spacing Between Supports Metric Designator Trade Size mm or m ft 16–27 1/2–1 900 mm 3 35–53 11/4–2 1.5 m 5 63–78 21/2–3 1.8 m 6 91–129 31/2–5 2.1 m 7 155 6 2.5 m 8 Also within 3' of a box.

2024年6月22日 · It was a fast way to get the job done and needed flexibility. When it was done it looked awesome, poured in concrete and fished up inside a block wall for low voltage cable, where no one could see it. It is flexible, but not flexible enough to be helpful, only a PITA. In concrete, PVC excels for pulling and installation.

2019年8月7日 · When I put a pvc lb up against an exterior wall, I cut the short hub clean off, and then I rub the rough edge where the hub was smooth by rubbing it back and forth on the closest concrete sidewalk or garage floor. Then I secure it to the wall using sheetrock screws for wood siding or tapcons for concrete and masonry walls.

2017年11月19日 · If you run the pvc conduit through the wall into a PVC box, you must install a box on the inside end of the pipe (4 inch octagon box with blank cover). If this is for an outside receptacle, the circuit must be a dedicated one as nomadapower stated. Run the cable from the panel to the octagon box and use an approved NM cable connector.

2023年7月28日 · Just a few days ago I saw a 1/2" PVC conduit on an outside wall installed horizontally. It had the PVC straps at the correct distances, but I didn't see the expansion couplings. It looked like a low frequency sine wave. IMO, it's more of a pain to correctly install PVC on the outside of a building than it is to use EMT, even if it is a material ...

2013年2月28日 · Securing a PVC LB Jump to Latest 22K views 29 replies 15 participants last post by mbednarik Mar 1, 2013

2018年6月20日 · Correct this is related to my other post. I will be installing pvc the entire length for the exterior though and when I go through the house foundation, I will be poking through a wall and adding a jbox. Its the portion that is withing the insulation I am worried about.

2014年11月13日 · EMT with taped up set screw fittings were the most reliable, first floor slabs were PVC. This was before smurf tube. I think smurf became more popular for horizontal runs and there are some products made by Carlon and others especially for slabs and direct bury in concrete. 3/4 PVC would be a good choice except for the weakness of typical fittings.

2007年7月24日 · I have a question about when to use EMT or PVC as conduit for Cat 5e or 6 cable with Power over Ethernet going through the cable. A licensed electrician will be pulling a dozen or so cat 5e or 6 drops inside a warehouse for a customer of mine. There is a 15" thick wall of concrete slab || foam || concrete slab to the exterior.