File:Fse-detector-activation-time-v4.svg

Fse-detector-activation-time-v4.svg (SVG file, nominally 900 × 600 pixels, file size: 39 KB)

Summary

Heat release rate of a fast and a slow t-squared fire with the response of a heat detector and a sprinkler under a 4 m ceiling. Based on Schifiliti et al. (2002), pp. 4-10 and 4-21.

Original illustration for Detector activation time, level 4 Expert.

Source basis: Schifiliti et al. (2002), p. 4-10 (power-law fire with fire growth time tg) and p. 4-21 (example 13: 4 m ceiling, sprinkler 74 °C and RTI 110, heat detector 57 °C and RTI 42, response times)
Alt text: Two rising fire curves, fast and slow, with markers where a heat detector and a sprinkler respond; the fast fire is much larger at response.

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 (39 KB)	Jan (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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Detector activation time

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Short title	Heat release rate of a fast and a slow t-squared fire with the response of a heat detector and a sprinkler under a 4 m ceiling. Based on Schifiliti et al. (2002), pp. 4-10 and 4-21.
Image title	Two rising fire curves, fast and slow, with markers where a heat detector and a sprinkler respond; the fast fire is much larger at response. Source basis: Schifiliti et al. (2002), p. 4-10 (power-law fire with fire growth time tg) and p. 4-21 (example 13: 4 m ceiling, sprinkler 74 °C and RTI 110, heat detector 57 °C and RTI 42, response times)
Width	900
Height	600