working at height walking/ working on a roof
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Working at height Walking/ working on a roof. Corporate Health & Safety 2011. Summary. Introduction Return of experiences Main causes of accident General rules Walking/ working on a flat roof Working on an inclined roof Practical exercice. Introduction. - PowerPoint PPT PresentationTRANSCRIPT
Working at heightWalking/ working on a roof
Corporate Health & Safety 2011
September, 2010 2confidential
Summary• Introduction
• Return of experiences
• Main causes of accident
• General rules
• Walking/ working on a flat roof
• Working on an inclined roof
• Practical exercice
September, 2010 3confidential
IntroductionAs far as falling of persons is concerned,
roofs are very dangerous !
At the beginning of 2010 (4 months)4 serious occurrences have been reported in ArcelorMittal concerning working and/or moving on a roof in our plants
leading to : 3 fatalities
In 2008/20098 serious occurrences have been reported in ArcelorMittal
concerning such activities in our plantsleading to : 3 fatalities
Very often, application of simple rules would have avoided such incidents, all related to existing rules or common sense (no respect of Golden Rules).
You are the only one able to stop it!If you don’t,
we’ll surely go on with fatalities + injured people every year !
September, 2010 4confidential
Rex
February 2010
Fatality
Work: removal snow works on the roof of the Rail Finishing Bay
The worker falls from the roof 20 m high
September, 2010 5confidential
Rex
May 2010
Fatality
Work: install an additional drain pump
on the concrete roof (slab) of the pumping station
The worker falls from the roof 6.2 m high
September, 2010 6confidential
Rex
September 2010
Fatality
Work: replacement of asbestos cement plates by metal plates
The worker falls from the roof 17 m high
September, 2010 7confidential
Rex
April 2010
Fatality
Work: execution of dismantling of old layer of bituminous roofing
The worker fell down from level of
+ 16.800 to level of +7.000 m
September, 2010 8confidential
Rex
September 2009
Fatality
Work: Inspection
The worker fell down from the height of 12 m to “0” level
September, 2010 9confidential
Rex
Augustus 2009
Semi-permanent injury
Work: Reparation of a hole in a tank
The worker fell down inside the fuel oil tank,
with 3,10 m of contents (600 cubic meters)
falling of a height of 5,9 m.
September, 2010 10confidential
Rex
Augustus 2009
Semi-permanent injury
Work: Reparation of the roof
The worker fell down from a height of 13 m.
September, 2010 11confidential
Main causes of accidents
Collapsing of the roof Hole existing in the roof
Without a secured floor Without a safety net below
Without fall protection PPE Without an attached lanyard
AND
September, 2010 12confidential
General rules (1/2)• All the roofs are systematically identified and inventoried based on a
risk assessment.
• Nobody is allowed to walk or work on a roof without an authorization.
– For walking on a roof (visits, inspections,…etc), you have to be trained and the way to follow has to be defined, secured and protected on the basis of an HIRA
– For working on a roof, you have to follow the procedure defined by an HIRA
• Each access to a roof has to be closed with a tag describing the interdiction
September, 2010 13confidential
General rules (2/2)– To suppress or manage the risk, you must
• Use the Hierarchy of Control
– Elimination
– Substitution
– Engineering
– Administrative
– Collective Protective Equipment
– Personal Protective Equipment
• Each choice has its place and time
• Before making the choice(s), Evaluate the Problem
September, 2010 14confidential
Walking/ working on a flat roof• The way of walking/ working on a roof has to be secured;
– Firstly, by using collective protection to avoid collapsing of the roof (complete floors resting on beams) and avoid falling due to the hazards coming from the elevated position (guardrails, toe-boards, hand rails, man hole cover).
September, 2010 15confidential
Walking/ working on a flat roof• The way of walking/ working on a roof has to be secured;
– Secondly, if it is not possible, you can use safety nets under the roof (Collapsing) or on the extremity of the roof (Falling from elevated position).
September, 2010 16confidential
Walking/ working on a flat roof• The way of walking/ working on a roof has to be secured;
– Thirdly , If it is not possible, you can use beam lifts or a basket suspended by a crane. In these two cases, you have to wear proper fall protective equipment and in the second case (Basket), you have to define a lift plan.
September, 2010 17confidential
Walking/ working on a flat roof• The way of walking/ working on a roof has to be secured;
– Fourthly , If it is not possible, you have to be secured by proper fall protective equipment (an approved full body harness, shock absorbing lanyard (where the potential to fall is greater than 4 meters) or short restraining lanyards (where the potential to fall is less than 4 meters), self-locking snap hooks (or carabineer type rings) and secure anchorage points). A second way is to use an approved full body harness and an anti-fall system.
September, 2010 18confidential
Walking/ Working on an inclined roof• The case of inclined roof is not usual in our plants. But for information, each country
has its own legislation depending of the inclination,…etc.
• Of course, the legislation is done on the basis of the same hierarchy of control that previously.
• Globally,
– First using scaffolds and nets
– Secondly using PPEs
September, 2010 19confidential
Practical exercice• Define the HIRA and the prevention plan for this case;
While execution of dismantling of old layer of bituminous roofing by victim, the partial collapse of ceiling plate happened. As a result the victim, who didn’t fix his safety belt to the lifeline, fell down from level of + 16.800 to level of +7.000 m