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Posted By Raiz
Hi,
What is the wind speed at which lifting operations must stop? What all factors shall be considered?
Thanks,
Raiz
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Rank: Guest
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Posted By Rakesh Maharaj
Raiz..
I am unware of specified limits that prohibits lifting. However, I would tend to use an assessment approach that includes the following factors:
- wind speed and other environmental conditions e.g. rain, snow and so on
- lifting height
- load characteristics e.g shape, weight, centre of gravity, nature of contents and so on
- method of lifting e.g. crane, flt and so on
- consequences of the load being blown over
I am sure that my colleagues will do their best to ID other potential factors worth considering.
Hope this helps start of a list of factors
R
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Rank: Guest
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Posted By alex mccreadie
Each crane manufacturer has a set wind speed factor which cranes should not work outside. Your crane supplier has a duty to pass this on to you. If you are hiring the crane under CPA conditions and planning the lift then you must supply an anenmometer or pay for the crane company to supply.
LOLER Regulation 8
and BS7121 Parts 1&3
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Rank: Guest
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Posted By Delwynne
most crane operators work to 10m/s. I don't know where this figure comes from though.
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Rank: Guest
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Posted By Martin Daly
All cranes in the near future will have to be fitted with anemeters that are connected to warning lights.
An amber light will come on when wind speeds hit 50 km per hour.
A red light and a horn will come on at 70 km per hour.
This is to comply with a new European directive.
Please note that the Crane will not automatically stop.
Yours
Martin Daly
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Rank: Guest
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Posted By alex mccreadie
Martin tried to e-Mail you direct but struck a problem. I would appreciate any info you have on this. Thanks in anticipation Alex
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