How should we treat direct burial wires in a trench for ampacity derating
- Should they be considered "in a raceway or cable"? [NEC 310.15(B)(3)(a)]
- If it is determined that "spacing" must be maintained, what minimum
spacing is acceptable/permissible?

I would be interested to hear what means and methods others have used to
deal with this issue.

Corey Shalanski
Joule Energy
New Orleans, LA
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