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cables in dry riser shaft

Newfutile

in one of our blocks of flats ,we have a short dry riser shaft(up to first floor only) the dry riser continues in cupboards inside the building

this has loose cables inside, look like extra low voltage possibly intercom/door entry , an SWA and some FP 200 type cables

i have been sent to contain them, but i question are they allowed to be there at all?

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    I recall a prohibition on other cables in lift shafts, but don't recall anything specific about not using dry riser shafts.

    There may be fire protection considerations - but I suspect that'll demand more in the way of preserving fire barriers and avoiding creating chimney effects (e.g. appropriate sealing of holes made for cables) rater than a flat prohibition.How does the shaft finish at the top? is it open (e.g. generally or into some building void) or reasonably well sealed off?

       - Andy.

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    I recall a prohibition on other cables in lift shafts, but don't recall anything specific about not using dry riser shafts.

    There may be fire protection considerations - but I suspect that'll demand more in the way of preserving fire barriers and avoiding creating chimney effects (e.g. appropriate sealing of holes made for cables) rater than a flat prohibition.How does the shaft finish at the top? is it open (e.g. generally or into some building void) or reasonably well sealed off?

       - Andy.

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