File:Fse-t-squared-fire-v1.svg

Fse-t-squared-fire-v1.svg (SVG file, nominally 900 × 600 pixels, file size: 17 KB)

Summary

The four standard t-squared growth curves; each class is defined by the time to reach 1,055 kW. Based on Iqbal and Salley (2004), p. B-3.

Original vector illustration for T-squared fire, level 2 Intermediate.

Source basis: Iqbal and Salley (2004), p. B-3 (Table B.1-1) and p. B-4 (Figure B.1-2: redraw, do not copy); Australian Building Codes Board (2020a), Data Sheet B1, pp. 10–11 (reference heat release rate of 1,055 kW)
Alt text: Line chart of four parabolic heat release rate curves, ultrafast to slow, crossing a horizontal line at 1,055 kW at 75, 150, 300 and 600 s.

New drawing by Fire Safety Academy. © Fire Safety Academy.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:05, 2 November 2026		900 × 600 (17 KB)	Lisa (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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Short title	The four standard t-squared growth curves; each class is defined by the time to reach 1,055 kW. Based on Iqbal and Salley (2004), p. B-3.
Image title	Line chart of four parabolic heat release rate curves, ultrafast to slow, crossing a horizontal line at 1,055 kW at 75, 150, 300 and 600 s. Source basis: Iqbal and Salley (2004), p. B-3 (Table B.1-1) and p. B-4 (Figure B.1-2: redraw, do not copy); Australian Building Codes Board (2020a), Data Sheet B1, pp. 10–11 (reference heat release rate of 1,055 kW)
Width	900
Height	600