Running MV cable with 600V Cable

[jkflipflop67]

I have an application where my project manager wants to use 15KV shielded cable for a 480V application. That aside, there needs to be other wiring that will be 120V/480V in the same area using 600V cable (all mostly underground). The 15KV cable will not and could never be used for voltages over 600V. Can these cables/wires share the same raceways so long as they meet the appropriate NEC codes for sizing and minimum cover?

 

[jtester]

You woud seem to have two problems.

First, if governed by the NEC or other authority requiring that your cable be listed, you probably can't use 15 kv cable for 480 volt work.

Secondly the NEC has specific requirements and limitations for the installation of MV cables in the same area as cables rated 600 volts or less. See 300.3(C)(2).

Jim T