Substation Cable Trough

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Guys,

Do you what is the recommended fill area of an underground open bottom concrete cable trough, has covers flush with ground surface.Is there any NEC section about the trough fill area, all what I could find in the NEC is the fill area of cable tray. Cables are 600V power and control. Thanks

[ December 22, 2005, 04:05 PM: Message edited by: Lightninarrester ]
 

dereckbc

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Re: Substation Cable Trough

You will not find anything in the NEC about sub-station cable trays b/c it is out of the scope of the NEC. Try NESC
 
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