What is the minimum separation distance required between a power cable and a communication cable running side by side to prevent interference?

Cables MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

PPSCFPSCNTSPakistan govt jobs
Subject
Cableselectrical-engineering-mcqs › cables
Published
12 Dec 2018
Last updated
28 May 2026

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Explanation

To avoid electromagnetic interference between power and communication cables, a minimum spacing of 50 centimeters is recommended. Smaller distances such as 2 cm or 10 cm are insufficient, while 400 cm is unnecessarily large.

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