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  1. 1Summary
  2. 2Licensing

Fse-ceiling-jet-v3.svg (SVG file, nominally 900 × 600 pixels, file size: 15 KB)

Summary

Maximum ceiling jet temperature rise under a 5 m ceiling for steady fires of 0.5, 1 and 2.5 MW, with a 10 °C smoke detector criterion and the 37 °C rise for a 57 °C heat detector in a 20 °C room. Based on National Research Council of Canada et al. (2005), p. 2.7-3, and Iqbal and Salley (2004), p. 11-7.

Original vector illustration for Ceiling jet, level 2 Intermediate.

  • Source basis: National Research Council of Canada et al. (2005), p. 2.7-3 (correlation and constants); Alpert (2002), p. 2-19 (validity: steady fires, unconfined ceilings); Iqbal and Salley (2004), p. 11-7; Ministry of Business, Innovation and Employment (2025b), p. 27
  • Alt text: Line chart: ceiling jet temperature rise under a 5 m ceiling falls with distance for fires of 0.5, 1 and 2.5 MW, crossing detector thresholds.

Licensing

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

File history

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Date/TimeThumbnailDimensionsUserComment
current17:04, 2 November 2026Thumbnail for version as of 17:04, 2 November 2026900 × 600 (15 KB)Lisa (talk | contribs)Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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