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ASTTBC RFPT — Fire Alarm Systems (AL) · Question

Which of the following is an explicit requirement for field wiring verification under CAN/ULC-S537?

Section 4.3 requires that wiring be verified for opens, grounds, and short circuit faults. Measuring wire gauge against the design is also part of field wiring

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Question: Which of the following is an explicit requirement for field wiring verification under CAN/ULC-S537?

Answer options:

  • Checking for correct wire jacket color
  • Testing for electromagnetic interference (EMI) from LED lighting ✅ Testing for opens, grounds, and short circuit faults
  • Ensuring all wires are twisted-shielded pair regardless of manufacturer specs

Correct answer: Testing for opens, grounds, and short circuit faults

Explanation: Section 4.3 requires that wiring be verified for opens, grounds, and short circuit faults. Measuring wire gauge against the design is also part of field wiring verification.

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