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ASTTBC RFPT — Fire Alarm Systems (AL) · Question

What is the acceptance criterion for 'Ground Fault' supervision during verification?

Section 5.3 covers field wiring. Any ground fault must be resolved as the system is not permitted to remain in a fault condition.

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Question: What is the acceptance criterion for 'Ground Fault' supervision during verification?

Answer options:

  • Allowable if it doesn't cause an alarm
  • Allowed for 'old' wiring only ✅ Zero (the system must be free of ground faults)
  • Less than 10 milliamps of leakage

Correct answer: Zero (the system must be free of ground faults)

Explanation: Section 5.3 covers field wiring. Any ground fault must be resolved as the system is not permitted to remain in a fault condition.

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