Jul 10, 2020 · I'm planning on using 1/O alum wire, but can't figure out if I need to use "SER" cable ( looks like it comes with a ground) or "URD" and use a additional wire for the ground?

Mar 24, 2015 · URD is not a recognized NEC cable or wire type and based on that marking alone it cannot be used for any NEC Chapter 3 wiring method. However the manufacturer MAY choose to also mark it for additional NEC wire type (s).

Apr 15, 2005 · Re: URD cable for underground feeder to home? In table 310.13 you will find the insulation thickness specifications for USE cable. URD is just a type of USE cable that has 3 or 4 conductors twisted together. You will have a very hard time getting this into 2 …

Sep 9, 2010 · My question is ... will the NEC allow URD Cable to be direct burial and terminated directly into a Service Panel on the inside of a building or will you have to transition on the outside of the building and bring another type cable into the panel . Thanks for your ideas:

Apr 24, 2021 · URD stands for underground residential distribution, and is used by utilities for distributing power underground on the utility's side of the service point. URD secondary cable is what the utility would use, for feeding a neighborhood of homes from a common pad-mount transformer that the utility owns.

Sep 7, 2006 · im putting a 100 amp subpanel into a dettachted garage and i figured with copper prices i would use 1/0, 1/0, 2 urd/use aluminum cable to feed the panel instead of pipe and copper conductors. the problem is that im having a hard time finding it in …

Jun 6, 2023 · I've seen URD quadruplex wire and wanted to use it for underground AC runs. See attached below. There are a couple points I am confused about and having a tough time figuring it out. I have an AC run from PV AC combiner panel to 480/208 transformer at 230' long. The current is 180.55A, and...

Mar 2, 2017 · Many USE-2 conductors (or assemblies often called URD or MHF) are marked RHH/RHW-2 and if so, can be run indoors, but do need to be run in conduit indoors. thx.

Jul 26, 2023 · I read somewhere that URD wire is not approved from the NEC for direct burial. Such as the 2-2-2-4 AL Dyke wire. Any code preventing this application such as a feeder from a 24 KW Generator to a ATS?

Jun 14, 2016 · True URD cannot be used above ground but you can use 4/0 alum xhhw in 2" rmc. SER cable is 4 wire so you wouldn't use that but you could put ser inside the conduit but why would you do that.