ASTTBC RFPT — Fire Alarm Systems (AL) · Question
When a ceiling height exceeds 3 meters, how must the spacing of heat detectors be adjusted?
Table 4 in CAN/ULC-S524 provides reduction factors for heat detector spacing when ceilings exceed 3m in height. As ceilings get higher, the heat plume widens an
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Question: When a ceiling height exceeds 3 meters, how must the spacing of heat detectors be adjusted?
Answer options: ✅ Reduce spacing distance by the factor in Table 4.
- Keep spacing the same but increase sensitivity.
- Increase spacing to 15m.
- Ceiling height does not affect heat detector spacing.
Correct answer: Reduce spacing distance by the factor in Table 4.
Explanation: Table 4 in CAN/ULC-S524 provides reduction factors for heat detector spacing when ceilings exceed 3m in height. As ceilings get higher, the heat plume widens and cools, requiring closer detector placement.
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Question explanations
- Which of the following constitutes a system 'deficiency' rather than a 'non-conformance' to current standards?
- When a deficiency is corrected, what specific information MUST be recorded in the log?
- Which of the following would be categorized as a 'Non-Conformance' to the Installation Standard (S524) in an i
- In the event of a deficiency that renders the fire alarm system inoperative, what is the mandatory reporting r
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