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NOTE: This is an unformatted excerpt from our online fire protection training library.

Conductor Selection & Application

The Table Method

Adjacent Conductors

Table 310.15(B)(16) also specifies that there will be no more than three current carrying conductors in a cable or raceway, which addresses the adjacent load-carrying conductors.

If there are more than three conductors, it will be necessary to apply an “adjustment factor” for the heat added by the adjacent current-carrying conductors.

NOTE: This is an unformatted excerpt from our online fire protection training library.

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