Ochs 1200 Accident Causation Flashcards
List 3 aspects of fire and explosion
Prevention-steps taken to prevent fuel and ignition sources from combining
Causes and effects of fire and explosions-determine under what conditions heat and fuel combined. Nature of fuel and ignition source.
Emergency Response-there must be plans and procedures in place that help mitigate losses.
What are the key conditions concerning tools, machinery and equipment?
Design, installation, use and maintenance
Adherence to regulations and standards
Effective guarding
Use of lockout/isolation
How can the working environment affect accident causation?
The environment can be natural or controlled and can affect both human behaviour and inanimate objects. Temperature tolerance
Machinery,equipment and materials can be affected by heat and cold as they start losing their properties.
Buildings and structures must not be exposed to forces greater than what they were designed to withstand.
What are key issues concerning working at heights?
Working at heights unprotected
Is there fall protection such as guardrails, restraints, fall arrest safety nets or control zone
Fall protection plan in place
Is there an emergency response plan place to rescue suspended fallen workers
What are the key issues involved investigating confined spaces accidents?
Did it involve multiple fatalities?
Was hazard assessments completed and safe entry procedures based on the developed systems?
Personnel following procedures?
Testing conducted?
Personnel trained and rescue plans in place?
What are the concerns of manual materials handling?
Assessing the factors that cause injury- mechanical, physiological or psychophysical
Tasks, environment, the object handled and the worker
Worker ability and threshold limits that determine safe conditions
Explain electrical safety concerns affecting accidents
Contact Voltages involved Nature of injuries Tolerance Safe limit approach for high voltage Low voltage does not mean low hazard
What are key problem concerns with pressurized systems?
Pressurized systems can involve gases under pressure
Exceeded pressures or temperatures
Damage to parts, improper design or installation, incompatible substances mix, maintenance failures.
Appropriate engineers and authorities need to be involved in investigation
What are other concerns involving energies and exposure?
Noise, vibration and radiation overexposure resulting in harm.
Explain the key issues regarding robotics?
Guarding must be kept adequate to keep humans separate from the machine. People must be made aware of the hazards and trained to follow safe working procedures
Why are accident causation theories important?
They are important for understanding a process for analysis and prevention purposes. It directs the investigator to find the real cause of accidents. Systematically organized investigation procedures.
What is the current direction of causation modelling and theories?
Accidents have multiple causation factors. It is believed organizations with good safety management systems, leadership, and safety culture have fewer accidents
What is the relationship between human factors and accident causation?
Overload. Workplace factors must fit the worker. Workplace designs and controls are designed to fit the capacities and threshold limit of the worker. Accidents occur when limits and capabilities are exceeded.
Explain the accident causation process using either Birds or Adams management based system.
Domino models are a chain of events that can result in loss. Intervention of events along the sequence could halt the process. Failure in the management system allows the domino stage to progress to incident stage.
What is overload?
Overload occurs when the full capacities of a worker are exceeded such as stress, fatigue, personal issues, pressure etc.
