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RCDDV15 · Question #276

A MINIMUM separation distance of 305 mm (12 in) between telecommunication cables and power cables with EMI exceeding 5 kVA is acceptable in which of the following cases?

The correct answer is A. Power cables are unshielded, while telecommunication cables are enclosed in a grounded metal. See the full explanation below for the reasoning.

Electrical Protection and Grounding

Question

A MINIMUM separation distance of 305 mm (12 in) between telecommunication cables and power cables with EMI exceeding 5 kVA is acceptable in which of the following cases?

Options

  • APower cables are unshielded, while telecommunication cables are enclosed in a grounded metal
  • BPower cables are unshielded, while telecommunication cables are enclosed in a non-metal
  • CPower cables are unshielded and enclosed in a grounded metal conduit, while telecommunication

How the community answered

(16 responses)
  • A
    81% (13)
  • B
    6% (1)
  • C
    13% (2)

Topics

#EMI separation distance#grounded metal conduit#power cable separation#electromagnetic interference

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