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A2 TW conductor is instaled in a location where the ambient mperature is expected to be 102 F. The temperature correc- son tactor for conductor ampacity in this location is tors in a raceway in an ambient temperature of 75'F is (a) 12A (b) 15A (C) 22A (d) 30A 071 082 0.88 0.96 5. THHN conductor is required for a 19.70A noncontin- uous load if the ambient temperature is 75"F and there are nine An) I he ambient temperature is 71°C, the minimum insulation mperature rating that a conductor must have and still have he capacity to carry current is current-carrying conductors in the raceway in a dry location. (a) 14 (b) 12 (c) 10 a 60°C O 105°C id) 8 120°C 6. The ampacity for each of nine current-carrying 10 THW conduc- tors installed in a 20 in. long raceway is 1 Ampacity Adjustment [310.15(B)(3{a)] (a) 25A of six current--carrying 4/0 XHHW aluminum con- (b) 30A

A2 TW conductor is instaled in a location where the ambient mperature is expected to be 102 F. The temperature correc- son tactor for conductor ampacity in this location is tors in a raceway in an ambient temperature of 75'F is (a) 12A (b) 15A (C) 22A (d) 30A 071 082 0.88 0.96 5. THHN conductor is required for a 19.70A noncontin- uous load if the ambient temperature is 75"F and there are nine An) I he ambient temperature is 71°C, the minimum insulation mperature rating that a conductor must have and still have he capacity to carry current is current-carrying conductors in the raceway in a dry location. (a) 14 (b) 12 (c) 10 a 60°C O 105°C id) 8 120°C 6. The ampacity for each of nine current-carrying 10 THW conduc- tors installed in a 20 in. long raceway is 1 Ampacity Adjustment [310.15(B)(3{a)] (a) 25A of six current--carrying 4/0 XHHW aluminum con- (b) 30A

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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69 Ambi a TN conductor is installed in a location where the ambient 4. The ampacity of 15 current-carrying 10 RHW aluminum conduc- tors in a raceway in an ambient temperature of 75°F is 1. on tactor for conductor ampacity in this location is (a) 12A (b) 15A (c) 22A (d) 30A 0.71 0.82 0.88 d0.96 5. An) ne ambient temperature is 71°C, the minimum insulation emperature rating that a conductor must have and still have THHN conductor is required for a 19.70A noncontin- uous load if the ambient temperature is 75°F and there are nine current-carrying conductors in the raceway in a dry location. the capacity to carry current is (a) 14 (b) 12 A) 60°C A 90°C 0 105°C (c) 10 (d) 8 120°C 6. 6.11 Ampacity Adjustment [310.15(B)(3)(a)] The ampacity for each of nine current-carrying 10 THW conduc- tors installed in a 20 in. long raceway is (a) 25A 1 The ampacity of six current-carrying 4/0 XHHW aluminum con- ductors installed in a ground floor slab (wet location) is (b) 30A (c) 35A (d) 40A a) 135A b) 144A () 185A () 210A
Transcribed Image Text:69 Ambi a TN conductor is installed in a location where the ambient 4. The ampacity of 15 current-carrying 10 RHW aluminum conduc- tors in a raceway in an ambient temperature of 75°F is 1. on tactor for conductor ampacity in this location is (a) 12A (b) 15A (c) 22A (d) 30A 0.71 0.82 0.88 d0.96 5. An) ne ambient temperature is 71°C, the minimum insulation emperature rating that a conductor must have and still have THHN conductor is required for a 19.70A noncontin- uous load if the ambient temperature is 75°F and there are nine current-carrying conductors in the raceway in a dry location. the capacity to carry current is (a) 14 (b) 12 A) 60°C A 90°C 0 105°C (c) 10 (d) 8 120°C 6. 6.11 Ampacity Adjustment [310.15(B)(3)(a)] The ampacity for each of nine current-carrying 10 THW conduc- tors installed in a 20 in. long raceway is (a) 25A 1 The ampacity of six current-carrying 4/0 XHHW aluminum con- ductors installed in a ground floor slab (wet location) is (b) 30A (c) 35A (d) 40A a) 135A b) 144A () 185A () 210A
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