A conductor starts at 55 amperes in the permitted insulation column, and the supplied adjustment factor is 70 percent. What adjusted ampacity results before terminal limits?

Texas Journeyman exam practice question · Branch Calculations & Conductors

A conductor starts at 55 amperes in the permitted insulation column, and the supplied adjustment factor is 70 percent. What adjusted ampacity results before terminal limits?

A55 amperes
B16.5 amperes
38.5 amperes
D78.6 amperes

Why C is correct

Multiply the starting ampacity by the supplied factor: 55 amperes times 0.70 equals 38.5 amperes. Terminal limitations would be checked afterward if the problem supplied them.

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A conductor starts at 55 amperes in the permitted insulation column, and the supplied adjustment factor is 70 percent. What adjusted ampacity results before terminal limits?

A conductor starts at 55 amperes in the permitted insulation column, and the supplied adjustment factor is 70 percent. What adjusted ampacity results before terminal limits?

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