A2 TW conducttor is installed in a location where the ambient mperature is expected to be 102"F. The temperature correc- on factor for conductor ampacity in this location is 0.71 082 0.88 0.96 I the ambient temperature is 71°C, the minimum insulation 2. mperature rating that a conductor must have and still have he capacity to carry current is A60°C A 90°C 105°C 120°C 11 Ampacity Adjustment [310.15(B)(3)(a)] The ampacity of six current-carrying 4/0 XHHW aluminum con- ductors installed in a ground floor slab (wet location) is a) 135A 0) 144A ) 185A 4 210A
A2 TW conducttor is installed in a location where the ambient mperature is expected to be 102"F. The temperature correc- on factor for conductor ampacity in this location is 0.71 082 0.88 0.96 I the ambient temperature is 71°C, the minimum insulation 2. mperature rating that a conductor must have and still have he capacity to carry current is A60°C A 90°C 105°C 120°C 11 Ampacity Adjustment [310.15(B)(3)(a)] The ampacity of six current-carrying 4/0 XHHW aluminum con- ductors installed in a ground floor slab (wet location) is a) 135A 0) 144A ) 185A 4 210A
Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter7: Symmetrical Faults
Section: Chapter Questions
Problem 7.21MCQ
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