Post on 18-Jan-2018
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Safety Talk 21
Cranes and their Safe Operation
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Cranes and their Safe OperationObjectives• Understanding the
operating risks
• Preventing injury and damage
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The Lever and Fulcrum
All cranes use levers and fulcrums
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Overbalancing
Overbalances if line through Centre of Gravity falls outside footprint.
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Moments• Three steps to instability
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Understanding the risk• Working at heights involves potential energy
• Cranes overturn due to excess moment
Causes of Injury• Run over by mobile cranes
• Struck by objects falling off
• Crushed when cranes topple
Prevention• Identify the hazards
• Assess the risks
• Identify people at risk
• Introduce precaution
Injuries – Causes and Prevention
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• Don’t treat lifts casually
• Think and plan ahead
• Appoint one supervisor
• Standardize signals– given only by the supervisor
• Principles:– right crane for the job– test certificates in date– safe load indicator working – competent operator– all hazards visible to operator
Cranes and Behaviour
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• Make a reconnaissance
• Plan and ask yourself:– do I know what I have to achieve ?– am I aware of all the rules ?– am I fit to operate ?– is the crane serviceable ?
• Be aware of others
• Expect others’ mistakes
• Safety is in your hands
• Set a good example
Take Pride in Safety Let others know by your actions and
words. That you stick to safe procedures
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• Know your equipment
• Assess Ground conditions
• Understand pre-start checks
• Operators fit and competent
• Conditions are safe
• All aware of signals
• Obstructions marked
Stay in Control Control the Power !
Eliminate the Accidents !
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• Haste causes most accidents
• Think safety
• Think hazard avoidance
• Maintain equipment properly
• Wear PPE
• Alcohol and control don’t mix
TAKE PRIDE IN SAFETY
Conclusion
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Test Your Understanding1. Why are cranes potentially dangerous ?
2. Name three ways you can anticipate hazards
3. What are the main tasks before start–up ?
4. Name the three elements of operating behaviour
5. Name three ways that show you take pride in safety while operating
6. Why do BP place such importance on safety ?
7. What causes most crane accidents ?
8. What is important about signals used to control a crane ?
9. What is meant by ‘Moment’ ?
10. What is meant by ‘Potential Energy’ ?
Take pride in safety