Rank: Forum user 
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All,
I am not a techincal guru when it comes to the subject matter, however, I do know that out amongst you we will have some very knowing people on the subject.
I am reviewing the above document and it appears there are variances on the term "Critical Lifts" does anyone out there have a legit or BS interpretation of what constitutes the same. No! I havent googled yet, its my next step once I post this topic as I can then compare the feed back and write what is most appropriate.
Thanks to all in anticipation of a positive reply.
Wizard
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Rank: Forum user 
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I think some N American terminology has been introduced here, in the UK we have Routine Lifts, or non routine lifts, these are further described as; Simple, Complicated and Complex. Simple are hopefully self explanatory, Complicated may be determined by factors such as awkward shape (C.O.G.), long duration, tandem lift etc. Complex involves addition of factors such as very heavy load, limited space etc.
Get hold of a copy of North Sea Ltd, Intl Rigging and Lifting Handbook, well worth the investment, and for definitive answer: BS 7121-1:2006
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Rank: Super forum user 
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The international oil & gas operators association OGP have some pretty good guidance on lifting ops and I think use the term for things like dual crane lifts, lifts over live equipment, etc. You can read and download this guidance from OGP website/publications.
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Rank: New forum user
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Rank: Forum user
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Thanks all,
Now to trawl, is that "with a net" or "on the net" ..hard to say these days
Wizard
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Rank: New forum user
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LOLER 98 talks about Routine Lifts and Complex lifts (e.g. Reg (8.1) (a). We refer to Routine, Non_Routine and Complex lifts on our site. You have to be careful because it is about risk and it is not just the lift that defines complex (or any other type for that matter) it is about other factors too, such as experience and capabilities of personnel, site conditions etc. It may say something in BS 7121 about these categories but I don't remember seeing anything written. Hope this helps
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Rank: Forum user 
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BS 7121:2006 Part 1
Categorises and gives a definition of Basic, Standard and Complex Lifts in Sections 4.8.2, 4.8.3 and 4.8.4. if you need any advice PM me
Andy
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Rank: Super forum user 
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Whilst on the subject of cranes, does anybody know of any restrictions when it comes to rigging a crane during the hours of darkness? (for a city centre Sunday lift)
I have seen a method statement stating rigging only during daylight hours. This will cause problems for this winter when there will only be about 8/9 hours of natural light for the rig, lift and de-rig with is about 10 hours less than required for the job!!!!
Of course, this issue will be raised with the lifting contractors next week, but I wondered whether this was a LOLER issue or just company practice???
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Rank: New forum user
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No reason for not rigging during the hours of darkness as long as enough lighting is provided to enable the Riggers to work safely. This could be provided by portable diesel generator lighting sets for instance.
Of course this might add costs to the contractors for the equipment rental and fuel not to mention the night shift rates for the Riggers and etc.
;-{)
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Rank: Super forum user
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It could also because we are talking about a 500 Tonne Crane going onto superlift and 80 Metres of fly?
For some of the bigger cranes it is safer in daylight than in artificial lighting.
Talk to the Crane people they are usually good at their job and will enlighten you (Excuse Pun) as to why.
Ta Alex
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