Work at Height and Over Water - Awareness QHSE Department 06 February 2013 Doc. Control No.: HQS-016-17-003 Rev 1
Learning Objectives • At the completion of this session, personnel should be able to: • Describe Songa Offshore’s required safe working practices for working at height and over water. • Locate on the QSMS, the Songa Offshore “Working at Heights” and “Work Over Water Procedure”.
Work at Height Procedures Corporate Level • Working at Heights, • Work Over Water Procedure, & • Man-riding procedure, is located on Level 4 - QSMS. • The Man-Riding & Work at Height Review checklists are located on, Level 7 - Corporate QSMS. Regional Level Rig Level
What is Work at Height? • Work at heights is applicable, where the feet are at a height of 2 meters (6 1/2 feet) or more above the nearest floor or where fall hazards exist.
Planning All work at height can be accomplished without any risk of falling. By careful planning, completing a risk assessment and adhering to the fall protection hierarchy: • Remove the hazard: Bring the work down to the ground level whenever possible. • If work at heights is unavoidable, secure the elevated work area with a barrier system, such as guardrails. • When a barrier system is not feasible, use an approved fall restraint system. • If no other option is feasible, use a approved fall arrest system and rescue plan.
Risk Assessment for Work at Height What risk management tools do we use, to properly plan and organise working at height tasks? • Development of Job Safety Analysis (JSA), • Safe work procedures, and • Planned equipment inspections
Risk Assessment for Work at Height • A Job Safety Analysis (JSA) shall be planned prior to the task being performed. • The work at height review checklist (HQS-017-21-006), can be used to assist in the development of the JSA. The Head of department, Supervisor and person performing the work will determine whether a Permit to Work is required for other critical work at height tasks. E.g. Work over water, Mobile elevated work platform.
JSA - What are the Job Steps, Work Environment and Conditions? Your basic steps should cover these?
JSA - What are the Hazards and Causes for Each Step? Has the JSA or work at height review checklist been used?
JSA - Determine the Potential Consequences? What could they fall – onto or through? How far could they fall? Dropped objects? What are the possible consequences to PEOPLE, Environment and Equipment?
JSA - Develop Control Measures Eliminate – bring work down to ground level Isolate - barriers / guard rails, tethered tools Engineer – Fall restraint, Fall Arrest systems Administration - training PPE – hard hat, harnesses
Personal Protective Equipment • What PPE is mandatory, when working at height? • Approved full-body harness is to be worn • Approved fall restraint or fall arrest system is to be worn • A chin strap is to be fitted and worn on protective hard hats. • All hand tools and equipment are to be fitted with a lanyard or tether to prevent dropping.
Fall Restraint • Fall restraint is the preferred approach to fall protection – it prevents you from falling by preventing you from entering an area of where a risk of fall from height exists.
Fall Arrest • Fall arrest is an approach which makes use of items of PPE to stop a falling person. • This means that if a worker is in a position where they could fall, the fall arrest system will limit both the distance and force of that fall.
Fall Clearance • An often overlooked hazard is that of fall clearances. You must ensure there is sufficient distance beneath the user to ensure they do not hit a lower level, or the ground, before the fall arrest system is fully deployed.
General Precautions • Avoid working on two levels at the same time to prevent the risk of dropped or falling objects. • Secure loose objects from falling at all times; • Check equipment thoroughly for loose parts before lifting overhead. • Ensure all loose tools, equipment, and parts are removed or secured when stopping work. • All deck openings will be covered, guarded, or made inaccessible.
General Rules for Derrick Work What are the rules wemustapply to reduce the risks associated with working in the derrick? • The following general rules for derrick work are to be adhered to: • Do not enter the derrick without the Driller’s permission. • No work is initiated in the derrick before the Driller notifies Drill crew & well is safeguarded against falling objects. • All equipment being carried into the derrick is to be logged in and out of the derrick register. • All tools to be used are to be fitted with a safety lanyard to arrest any fall, prior to going up the derrick.
Safe Use of Ladders • Types of Ladders: • Commonly used fixed ladder (used daily) • Potential for a fall over 2 meters / 6 ft • Fitted with an appropriate permanently fixed fall arrest system. • Signage is to be located to prompt the climber to use fall arrest.
Safe Use of Ladders • Types of Ladders: • Infrequently used ladders (not used daily) • Not used daily or not specifically for emergency escape and present a free fall hazard of over 2 meters or 6 ft. • Temporary fall arrest system shall be fitted. • Signage is to be located to prompt the climber of control measures required.
Safe Use of Ladders • Types of Ladders: • Emergency Ladders • Marked with the appropriate IMO pictogram. • A risk assessment for the fall hazard on these ladders will be provided to determine requirements to prevent fall.
Safe Use of Step Ladders • All ladders are to be constructed of non conductive material. • All ladders must conform to regulatory standards. • Inspect the ladder before use; do not use a defective ladder • Ensure the ladder is the proper length for the job to be performed. • Ladder should rise to a height of at least 3½ feet (1 meter) above the landing place. • Ensure that the ladder or stepladder is securely supported.
Safe Use of Ladders • The Distance between the ladder base and the supporting structure should be one (1) meter for every four (4) meters of working ladder height. • This is referred to as the “Pitch angle” which for ladders is = 1 - 4
Mobile Elevating Work Platforms • A competent person shall be designated to operate the work platform, scissor lift, cherry picker, crane lift platform. • Supervisors and competent persons operating MEWPs must assess the risks of people falling from or being thrown from the carrier, or the MEWP overturning, and eliminate or control those risks. • If there is still a residual risk of impact or persons falling, then the use of fall should be used.
Mobile Elevating Work Platforms • Checks should be made with the manufacturer that the MEWP can be used as part of a fall arrest system and that it has suitable anchor points? • Note: When working next to water, a harness should not be worn due to the risk of drowning. Life jackets should be worn.
Suspension Trauma • Potentially fatal consequences that may be experienced by workers using fall arrest systems. • The sustained immobility may lead to a state of unconsciousness, venous pooling and can result in death.
Emergency Preparedness After a person’s fall has been arrested, how are you going to rescue them? • A rope rescue team shall be established on all Songa rigs and emergency rescue plan shall be in place prior to work commencing. • Rescue personnel must by trained, competent, clearly identified and have the correct equipment and be able to perform their responsibilities