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8月31日 · The other times we use schedule 80 is where it leaves the building. Most specs call for ten feet of schedule 80 or rigid. This is where it leaves through a sleeve in the foundation wall. They’re worried about the ground settling around the foundation and snapping the conduit. (Edited to throw in a schedule 80 pic)

2016年5月17日 · I have not been on a job where they used pvc conduit for the in wall conduit runs. Funny you mention 'babysitting', I have never been the guy to do this but i have seen the guys doing this many times. They were armed with a bundle of 30" sections of EMT with a coupling attached to one end to go up as the masons progressed.

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

2020年12月29日 · PVC conduit shall be installed as a complete system as provided in 300.18 and shall be fastened so that movement from thermal expansion or contraction is permitted. (A) Securely Fastened. PVC conduit shall be securely fastened within 900 mm (3 ft) of each outlet box, junction box, device box, conduit body, or other conduit termination.

2023年10月4日 · I just hate cables coming out a hole in the wall. You could do like @ohm it hertz says, I'd add a cord grip - so a nipple from the back of the interior box to a coupling and cord grip. A box on the outside with a cord grip would work too, either a flush box with a cord grip in a KO on the cover, or a surface mounted box with the cord grip on a ...

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.

2016年11月4日 · This is the alternative power forum section not the Canadian section right? Ok, good. Pvc can be buried in insulation all day and night. DC current conductors coming from solar panels must be in metal conduit once inside the interior of a building. I have no idea if the inside core of an exterior block wall is considered interior or exterior.