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ASTTBC RFPT — Fire Alarm Systems (AL) · Question

When a fire alarm system is modified, what update is required for the as-built drawings under CAN/ULC-S537?

If the wiring path changes significantly, the as-builts must be updated because the verification confirms the wiring supervision of that specific path.

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Question: When a fire alarm system is modified, what update is required for the as-built drawings under CAN/ULC-S537?

Answer options:

  • None, as-builts are only for device locations
  • Only if the color of the wire changed from red to white ✅ Any change to the circuit routing or the addition/deletion of devices
  • Only if the manufacturer of the control panel changed

Correct answer: Any change to the circuit routing or the addition/deletion of devices

Explanation: If the wiring path changes significantly, the as-builts must be updated because the verification confirms the wiring supervision of that specific path.

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