346-Lifting and Hoisting Operations / 748
L
iftin
g
and
H
oistin
g Op
erations
BOS-PRD-07.900604
The degree of planning can vary considerably and
shall
depend on the type of equipment to be used and the
complexity of the operation.
A non-routine Lifting Plan
shall
be prepared by a competent person. This then needs to be reviewed and
approved by another competent person and/or a technical authority. It
shall
then be reviewed and finalised
by the on-site competent person and the
L
ift
Sup
ervisor
carrying out the lift.
A non-routine Lifting Plan
shall
be produced on-site by a competent person if the need arises. The same
review and approval, by a second competent person and/or technical authority and the on-site lifting team
and
L
ift
Sup
ervisor
carrying out the lift,
shall
be required.
In all cases, if defined upon the risk assessment and/or contract, a warranty surveyor
should
be appointed.
4
.
3
.1
3
Initial
c
onsiderations for t
h
e assess
m
ent of t
h
e load and its
h
andlin
g
For any type of lift an assessment of the load is vital:
x
What is the weight of the load?
x
Is the deck strong enough?
x
Is the weight verified?
x
Is the load designed for offshore lifting, for example container type?
x
Are the lift points certificated/adequate?
x
Can slinging points be accessed safely?
x
Is the load slung in a stable fashion with no loose items in or on it?
x
Is the Centre Of Gravity (CoG) known?
x
Does the load have integrity and internal stability?
x
Is the shape or size difficult to sling?
x
Is it a very long load, liable to rotate etc?
x
Will it flex under suspension?
x
Does it require securing to its pallet?
x
Does the load contain liquids?
x
Is it fragile?
x
Is it high value?
x
Are there chemicals in the load?
x
If subsea, consider shock loads and changes to weight in air due to the effects of flooding and
draining, seabed suction, plus marine growth or debris/grout if removing existing subsea structures,
added mass, the splash zone, which will be affected by sea state, changes to buoyancy and the
centre of buoyancy;
x
Are there any sharp edges?
x
Are hold down bolts/sea fastenings removed?
x
Are necessary permits obtained for its lift?
4
.
3
.1
4 C
onsiderations for t
h
e sele
c
tion of liftin
g
eq
u
i
p
m
ent
Initial assessment
shall
include the following:
x
Is correct Personal Protective Equipment (PPE) identified and used?
x
Sling angles and lifting attachment angles;
x
Are attachment points adequate?
x
How are slings to be attached?
x
Is the hook type appropriate?
x
Manual handling of heavy rigging?
x
Will divers or Remote Operated Vehicles (ROV) be involved and are slings/attachments compatible
with underwater work?
x
Is there a lifting point available directly overhead?
x
Is the sling arrangement suitable for the CoG?
x
Sling lay direction – left hand lay and right hand lay
shall
not be connected;
x
Will the layout and lay-down of the slings affect control of the lift?
Version 04. Original date: 28/06/2012. Version date: 31/12/2014. Valid version only on QMS site. Uncontrolled document when printed.
Procedure prepared by: BOS Operations Department Project Manager. Approved by: BOS Head of Operations. Validated by: BOS Quality Representative.
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