Four 6 AWG THW Cu conductors are installed in the same conduit to supply fastened-in-place equipment. Three of the conductors are current-carrying conductors. The ambient temperature around the conduit is 30°C. What is the largest- size OCPD permitted to protect these conductors?

Four 6 AWG THW Cu conductors are installed in the same conduit to supply fastened-in-place equipment. Three of the conductors are current-carrying conductors. The ambient temperature around the conduit is 30°C. What is the largest- size OCPD permitted to protect these conductors?

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter10: Using Wire Tables And Determining Conductor Sizes

Section: Chapter Questions

Problem 4PP: 4. Eight 10 AWG aluminum conductors with Type THWN insulation are installed in a single conduit....

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Concept explainers

Methods of Wiring

Electrical wiring is the way of integrating cables and wires to interconnected equipment such as fuses, switches, sockets, lights, fans, and so on to the main distribution board, which is a specific structure attached to the utility pole that ensures a constant power supply.

Question

Four 6 AWG THW Cu conductors are installed in the same
conduit to supply fastened-in-place equipment. Three of the
conductors are current-carrying conductors. The ambient
temperature around the conduit is 30°C. What is the largest-
size OCPD permitted to protect these conductors?

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