Author Topic: Evacuation Lifts - small clarification if possible  (Read 4728 times)

Offline Username

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Evacuation Lifts - small clarification if possible
« on: September 29, 2008, 04:05:19 PM »
Wonder if anyone can help clarify this for me?

BS5588-8 exempts hydraulic lifts serving two storeys from the alternative power supply requirement, but doesn't say why.

I'm guessing it's to do with the relative ease with which the lift can be recovered to the ground floor in the event of the power being lost, but in that event what happens to the rest of your evacuation plan? Risk assess and back up plans?

Thanks for any enlightenment.

Offline Roy

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Evacuation Lifts - small clarification if possible
« Reply #1 on: October 01, 2008, 01:58:02 PM »
It's a flaw in the BS.

You are correct in your thinking, the idea is that people that need to use the lift can do so due to the controlled desent using the hydraulic system.

However, this has the obvious disadvantages that you mention, i.e. what if the lift is on the ground floor when the power fails or what if you need to use the lift more than once.

There are two way rounds the problem, moving and handling techinques with trained persons, with the aid of the lift if available, or insist on a back up-power supply regardless of what the BS says.

Offline nearlythere

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Evacuation Lifts - small clarification if possible
« Reply #2 on: October 01, 2008, 02:04:46 PM »
Quote from: Roy
It's a flaw in the BS.

You are correct in your thinking, the idea is that people that need to use the lift can do so due to the controlled desent using the hydraulic system.

However, this has the obvious disadvantages that you mention, i.e. what if the lift is on the ground floor when the power fails or what if you need to use the lift more than once.

There are two way rounds the problem, moving and handling techinques with trained persons, with the aid of the lift if available, or insist on a back up-power supply regardless of what the BS says.
Don't quite get where you are coming from Roy. If the lift is on the ground floor thats fine as people can get out of it. Why would you want to use the lift more than once? It would not be an evacuation lift.
We're not Brazil we're Northern Ireland.

Offline Roy

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Evacuation Lifts - small clarification if possible
« Reply #3 on: October 01, 2008, 04:03:04 PM »
What if there are people on the first floor and the lift is on the ground floor when the power fails?

What if there are more occupancts that require the lift that can fit in to it in one go?

Offline nearlythere

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Evacuation Lifts - small clarification if possible
« Reply #4 on: October 01, 2008, 05:48:53 PM »
Quote from: Roy
What if there are people on the first floor and the lift is on the ground floor when the power fails?

What if there are more occupancts that require the lift that can fit in to it in one go?
Lifts are not normally used for escape purposes and, unless specially adapted for use as, should not be used for such purposes.
We're not Brazil we're Northern Ireland.

Offline Username

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Evacuation Lifts - small clarification if possible
« Reply #5 on: October 02, 2008, 08:23:42 AM »
Does anyone know if the reference to hydraulic lifts is the same in the new BS 9999?

Offline Fishy

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Evacuation Lifts - small clarification if possible
« Reply #6 on: October 06, 2008, 12:17:36 PM »
Yes, it is.

Quote from: Username
Does anyone know if the reference to hydraulic lifts is the same in the new BS 9999?

Offline Username

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Evacuation Lifts - small clarification if possible
« Reply #7 on: October 06, 2008, 03:59:49 PM »
Thanks Fishy.