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Originally posted by amped

What is the minimum size single -conductor medium voltage cable that may be installed in cable tray? I see it as 1/0 awg. 392.3B2.Would I be right? Thanks!

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(1) Single Conductors. Single-conductor cables shall be permitted to be installed in accordance with the following:
(a) Single-conductor cable shall be 1/0 AWG or larger and shall be of a type listed and marked on the surface for use in cable trays. Where 1/0 AWG through 4/0 AWG single-conductor cables are installed in ladder cable tray, the maximum allowable rung spacing for the ladder cable tray shall be 230 mm (9 in.).
(b) Welding cables shall comply with the provisions of Article 630, Part IV.
(c) Single conductors used as equipment grounding conductors shall be insulated, covered, or bare, and they shall be 4 AWG or larger.

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