Contents
Fse-detector-activation-time-v3.svg (SVG file, nominally 900 × 600 pixels, file size: 14 KB)
Summary
Temperature of the sensing element of two heat detectors in a steady ceiling jet of 153 °C and 2.4 m/s; the 57 °C rating is reached after about 11.6 s (RTI 55) and 6.3 s (RTI 30). Based on Schifiliti et al. (2002), p. 4-8.
Original illustration for Detector activation time, level 4 Expert.
- Source basis: Schifiliti et al. (2002), p. 4-8 (example 1 and 2: kerosene pool fire, gas 153 °C and 2.4 m/s, RTI 55, rating 57 °C, response about 12 s); Ministry of Business, Innovation and Employment (2025b), p. 27 (heat detector RTI 30 and 57 °C)
- Alt text: Line chart: element temperatures for RTI 55 and RTI 30 rise towards a 153 °C gas temperature and cross the 57 °C rating after 11.6 s and 6.3 s.
Licensing
New drawing by Fire Safety Academy. © Fire Safety Academy.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:28, 2 November 2026 | | 900 × 600 (14 KB) | Jan (talk | contribs) | Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity |
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