Rank: Guest 
|
Posted By Austin. U
Hi All,
Please I wish to find out additional information for 2 men working from a basket (cage)lifted by a mobile crane to carry out welding works.
My RA dwells on controls for work at heights,pls I would be glad to know all risks to be considered in placing men in a suspended basket(cage)being lifted by a mobile crane.
Regards,
Austin.
|
|
|
|
|
|
Rank: Guest
|
Posted By James Fearns .
Hi Austin.
I have experience in WAH for over twelve years now .Some main points to look at could be
- Welding cables attached to basket .(weight)
- Exclusion zone .
- Radio contact .
- Fire blanket on floor of cage to arrest sparks .
- Fire warden .
- Harness trained person/s .
- Fire extinguisher in basket .
- How long will job take ? .
- I.I.T.S .
- Location of nearest first aider .
- Crane certification .
- Is one person a trained slinger .
Im sure there are others to follow,I hope these are of use :)
Kind regards,
James Fearns .
|
|
|
|
|
|
Rank: Guest
|
Posted By James Fearns .
Hi Austin,
I realise you were looking for the'risks',I just thought you might look a these too.
JF
|
|
|
|
|
|
Rank: Guest
|
Posted By db
Your RA should be for the task of welding at height NOT for the use of the crane in the first instance.
Is the crane the best bit of kit for this task? Can you use anything else?
|
|
|
|
|
|
Rank: Guest
|
Posted By alex mccreadie
I would agree with the last poster on is the crane necessary.
If it is you really need to bring the crane company in to assist you because of the special circumstances involved in using a crane on man riding duties.
Factors to be considered include Wind Speed severely reduced on man riding duties to 7 metres per second! and the crane must be de-rated.
Hope this helps
Alex
|
|
|
|
|
|
Rank: Guest
|
Posted By Eddie Campbell
Welding from a man basket is a fairly common job in some industries. Whether you use a crane to support the man basket or you use a MEWP will be decided by the requirements of your job and the subsequent method statement and the risk assessment of that method statement.
Using a crane however is not quite as simple as using a MEWP in terms of the safety and procedural issues that you may encounter.
If you really really really want to use a crane and a MEWP will definitely not do the job then here are a few pointers to help you with that all important method statement and risk assessment.
The standard you should consult to ensure that the design of your basket meets with current legislation is:
BSEN 14502-1 Cranes – Equipment for lifting persons – Part 1 Suspended Baskets
The standard you should consult to ensure that the crane you are using meets with current legislation is:
BS 7121 – 3: 2000 Code of practice for the safe use of cranes – Part 3 Mobile Cranes. This covers the most common types of crawler and mobile telescopic cranes in sue on construction sites but not tower cranes or rail mounted cranes etc.
Annexe D of this document will give you some useful guidance on personnel hoisting with cranes.
Don’t forget regulation 5 of LOLER 1998 for lifting equipment for lifting persons
For welding from a basket you should consult HSG 118 Electrical safety in arc welding.
Consider the training required for ALL basket occupants such as
Use of and inspection of fall arrest equipment
Use and inspection of a man riding basket
Use of radio or hand signals to control the lifting operations
Your fall arrested person rescue procedure
Consider training that the crane operator may require:
Use of and inspection of man riding basket
Use of radio or hand signals to control the lifting operations
Your fall arrested person rescue procedure
HTH
Eddie
|
|
|
|
|
|
Rank: Guest
|
Posted By GT
Austin,
Many good reasons have been given for not using this method. However, this method of operation to me is a last resort situation.
Any manbasket suspended from a crane accommodating people is a totally uncontrolled environment. Although tag lines should always be deployed, sometimes at higher levels tag lines are less effective and wind eddies around high structures can be very disruptive to controlling the task.
Please look at an alternative option, don't get me wrong this method is very popular but it has high risks.
Remembering that every time you move the crane you need to test the crane and equipment.
Regards
GT
|
|
|
|
|
|
Rank: Guest
|
Posted By The toecap
Has anybody considered a method of rescue?
|
|
|
|
|
|
Rank: Guest
|
Posted By Peter MacDonald
Austin.
Most of the risks pointed out above are good and the Toecaps additional suggestion of a rescue plan must be carried out in accordance with the WAH regulations as well as it being good practice in man basket operations.
A word of caution though, and critical to the safe planning of the work. If you are writing the RA and safe system of work (lifting plan) for this job then you have to be an appointed person for lifting. It's a legal requirement.
Man basket operations are often the safest way of carrying out certain tasks. Difficult to weld from a MEWP after a certain height and from experience I'd rather be in a man basket than a MEWP over about 50ft. It's much more stable if operated within the safe parameters of the crane and LOLER guidance.
But the work must be planned and supervised/executed by competent/experienced people.
|
|
|
|
|
|
Rank: Guest
|
Posted By Julide
Austin,
I guess you should first check the possibilities of scaffolding.
If not, any MEWPs to use?
And the challenge with the mancage, where will the person anchor his landyard?
Considering the the top of the cage is closed (by a mesh) will the worker tie himself to the crane or the cage?
Rgds,
Julide
|
|
|
|
|
|
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.