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Local Battery Emergency Lighting Suitability

me1899
Hi All, hope all well


Got a query on em lighting.


Got a 16m high new build storage racking warehouse where I am proposing central battery emergency lighting.


2 units, fire rated feeds to busbars (the busbar system and associated plug in lights being certified as acceptable to use internal conductors for the emergency feeds as opposed to separate cabling to every luminaire).


Someone is now suggesting to go local batteries - 124 of them which I think is bonkers mounted at 16.5m.


Is there a reg to throw back at them in addition to the obvious comments on maintenance, effect of elevated ambient temperature up there (lots of rooflights present)?



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  • Former Community Member
    0 Former Community Member
    Could you credibly get a self contained battery unit system to meet the illuminance requirements at 16m in the air, given that the smoke will tend to collect at the top and fill downwards - there certainly wouldn't be test data at that height for sure, as you are already beyond the height of point source fire detection anyway.


    It would be far easier to light from the perimeter (glare being taken into account) and a decent IP rating to avoid a good drenching from the sprinklers


    Regards


    OMS
Reply
  • Former Community Member
    0 Former Community Member
    Could you credibly get a self contained battery unit system to meet the illuminance requirements at 16m in the air, given that the smoke will tend to collect at the top and fill downwards - there certainly wouldn't be test data at that height for sure, as you are already beyond the height of point source fire detection anyway.


    It would be far easier to light from the perimeter (glare being taken into account) and a decent IP rating to avoid a good drenching from the sprinklers


    Regards


    OMS
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