CFAA Fire Alarm Technician · Question
In Canadian fire alarm installations, wiring must be:
CAN/ULC-S524 requires that fire alarm cables be protected from mechanical injury. Protective measures include conduit or armored cable (AC-90).
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Question: In Canadian fire alarm installations, wiring must be:
Answer options:
- NMD-90 Romex cable
- Unshielded twisted pair without conduit ✅ Protected against mechanical injury (e.g., conduit or BX)
- Wireless communication only
Correct answer: Protected against mechanical injury (e.g., conduit or BX)
Explanation: CAN/ULC-S524 requires that fire alarm cables be protected from mechanical injury. Protective measures include conduit or armored cable (AC-90).
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Question explanations
- The primary power for a fire alarm system must be:
- If a 120VAC primary power circuit for a fire alarm control unit is consuming 60 Watts of power, what is the cu
- In a steady-state DC circuit, if the conductor length is doubled while maintaining voltage and wire gauge, wha
- A resistor is rated at 10 Watts at 24VDC. If the voltage drops to 20VDC, what is the new power dissipation?
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