Cable tray sizing 392.22 (A)

Tim Davies

Member
Location
alberta
Occupation
electrical design supervisor
Referring to section 392.22(A) regarding cable tray fill. My question is if the in2 is exceeded is there any derating factor that can be applied to the cables or is the in2 the bottom line for tray sizing.
When replying please quote relevant section of code, thanks.
 
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