buried conduit

[pjm_b]

What are the specifications on burying conduit containing communications and power (depth, width,& can they share the same trench)?

 

[bphgravity]

Re: buried conduit

See section 300.5 for underground installations. Power and communicatons can share the same trench however there are restrictions on running them in the same raceway. Also see section 300.3(C)(1)and the FPN to this section.

 

[ncjohn]

Re: buried conduit

The applications that I have seen seperate the power and control/communication coundits into seperate ductbanks within the same trench with either 12 or 24 inches of seperation (can't remember off hand).

[ June 25, 2004, 05:48 PM: Message edited by: ncjohn ]