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Openings in Protected Shafts/Riser Cupboards


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  • Jonny Roberts changed the title to Openings in Protected Shafts/Riser Cupboards

The purpose of cold smoke seals is to prevent cold smoke percolating from a risk room to an escape route and smoke logging it, making it untenable. A lift or service shaft is not an escape route, however if the lift is used for means of escape then it would require rethinking if such a thing was considered.

Why such shafts are protected is to prevent fire spreading from one floor to another in the later stages of a fire, smoke would not be a problem.

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I wouldn't, I would be more concerned with fire spread later in the development f the fire. I think meter cupboards would need to be risk assessed and may need cold smoke seals. I have been to a number of incidents involving electric meter cupboards so I do see a risk.

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