CFAA Fire Alarm Technician · Question
Per CAN/ULC-S536, sealing lead-acid batteries must be replaced if they fail a capacity test, but what is the recommended replacement interval if manufacturer instructions are absent?
Clause 5.5.3 requires battery capacity testing annually. If a battery fails to meet its 24-hour standby and subsequent 30-minute alarm capacity, it must be repl
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Question: Per CAN/ULC-S536, sealing lead-acid batteries must be replaced if they fail a capacity test, but what is the recommended replacement interval if manufacturer instructions are absent?
Answer options:
- Every year
- Every 2 years ✅ Every 5 years
- Every 10 years
Correct answer: Every 5 years
Explanation: Clause 5.5.3 requires battery capacity testing annually. If a battery fails to meet its 24-hour standby and subsequent 30-minute alarm capacity, it must be replaced. Batteries 5 years old or older must also be carefully evaluated or replaced per manufacturer specs.
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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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