Aug 18, 2017 · Well, Schedule 80 and Schedule 40 fittings are both compatible in size with either wall thickness pipe. For plumbing uses 80 is required for some industrial, agricultural, and …

Feb 18, 2005 · Re: PVC schedule 80 or 40 Reading UL 651 Schedule 40 & 80 Rigid PVC conduit: "Schedule 80 rigid PVC conduit are for use wherever schedule 40 conduit may be used and in …

Jan 25, 2018 · Schedule 80 Elbows with Schedule 40 PVC Schedule 80 Elbows with Schedule 40 PVC We ran into a project where the original installer used Schedule 40 PVC in the concrete …

Jan 5, 2011 · conduit, Schedule 80 PVC conduit, or equivalent. Mike, how are conductors under a resi driveway in schedule 40 PVC subject to physical damage as a general rule of thumb? It is …

Aug 2, 2018 · I have always specified PVC Schedule 80 for outdoor underground installations. Contractor is asking to use HDPE, would this substitution be inferior, equivalent, or superior? …

Oct 23, 2008 · The UL white book states that schedule 40 conduit is suitable for underground use by direct burial or encasement in concrete. Some is marked "Directional Boring" and is …

Mar 19, 2024 · In the 2023 National Electric Code Handbook code handbook it states in the notes that “Schedule 40 and Schedule 80 are both permitted for underground installations, such as …

Oct 29, 2007 · I need to know if schedule 40 is okay to use to feed a 100 amp sub panel.The run will go through the foundation wall into a trench and back up his house where it will be …

Jan 5, 2011 · Not only is it unreasonable to think a schedule 40 under a residential concrete driveway is subject to physical damage, it is also unreasonable to have to bury it so deep …

Sep 19, 2007 · The Code says to use Schedule 80 when subject to damage, (when running up to the box) which would be pretty hard to hit to do as this is set back near some trees. I'm …