File:Fse-plugholing-v1.svg

Fse-plugholing-v1.svg (SVG file, nominally 900 × 600 pixels, file size: 7 KB)

Summary

When local extraction reaches through a smoke layer, some exhaust capacity draws air from below. Based on Van Rossum (2027), §6.8, and Cooper (2002), p. 3-228.

Original illustration for Plugholing, level 3 Advanced.

Source basis: Van Rossum (2027), §6.8; Cooper (2002), p. 3-228, Figure 3-9.9: redraw, do not copy.
Alt text: Two ceiling outlets showing smoke-only withdrawal and withdrawal that also draws air from the lower layer.
Accuracy notes: Lower-layer air rises towards the extract; do not draw smoke being pushed down by suction or imply a fixed geometric shape.

Licensing

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

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	16:44, 2 November 2026		900 × 600 (7 KB)	Emma (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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Plugholing

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Short title	When local extraction reaches through a smoke layer, some exhaust capacity draws air from below. Based on Van Rossum (2027), §6.8, and Cooper (2002), p. 3-228.
Image title	Two ceiling outlets showing smoke-only withdrawal and withdrawal that also draws air from the lower layer. Source basis: Van Rossum (2027), §6.8; Cooper (2002), p. 3-228, Figure 3-9.9: redraw, do not copy.
Width	900
Height	600