CFAA Fire Alarm Technician · Question
When using PVC conduit for fire alarm wiring, how is the bonding of metal device boxes achieved?
Non-metallic raceways (PVC) do not provide an electrical path to ground, so a separate bonding conductor must be pulled in the raceway to bond all metal enclosu
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Question: When using PVC conduit for fire alarm wiring, how is the bonding of metal device boxes achieved?
Answer options:
- No bonding is required
- Bonding is only required for high voltage ✅ A separate bonding conductor must be installed
- The drain wire of the FAS cable is used as the bond
Correct answer: A separate bonding conductor must be installed
Explanation: Non-metallic raceways (PVC) do not provide an electrical path to ground, so a separate bonding conductor must be pulled in the raceway to bond all metal enclosures (pull stations, etc.) per CEC Rule 10-402.
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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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