Exam CTS Topic 1 Question 249 Discussion

Actual exam question for AVIXA's CTS exam
Question #: 249
Topic #: 1
In order to run three cables inside a conduit, what is the maximum percentage of a conduit's internal cross- sectional area to be considered?

Suggested Answer: B Vote an answer

When running three cables inside a conduit, the maximum allowable fill is 40% of the conduit's internal cross-sectional area. This percentage is specified to ensure that there is adequate space for pulling the cables through without causing damage and to allow for proper airflow to prevent overheating.
CTS Technology Specialist ReferenceAccording to the CTS guidelines and National Electrical Code (NEC), conduits should not exceed 40% fill for three or more cables to ensure safety and maintain the integrity of the cables during installation and use.

by Clarence at Jul 21, 2025, 07:46 AM

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