Saturday, January 10, 2009

Safety Manual & Health Topics : Ergonomics

Ergonomics is a discipline that involves arranging the environment to fit the person in it. When ergonomics is applied correctly in the work environment, visual and musculoskeletal discomfort and fatigue are reduced significantly.In recent years, CDC’s Office of Health and Safety has identified repetitive motion injuries as a factor in employee injuries. These injuries are caused by excessive and repeated physical stress on the musculoskeletal system - the hands, wrists, elbow, shoulders, neck, and back. Following ergonomic principles helps reduce stress and eliminate many potential injuries and disorders associated with the overuse of muscles, bad posture, and repeated tasks. This is accomplished by designing tasks, work spaces, controls, displays, tools, lighting, and equipment to fit the employee’s physical capabilities and limitations.

Ergonomic Guideline for Manual Material Handing


Safety Manual and Heath Topic : Electrical safety at work

Electricity kills and injures people. Around 1000 electrical accidents at work are reported to HSE each year and about 25 people die of their injuries.Working with electricity can be dangerous. Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards.

Working Safety Around Electricity


Buy & Sale Electrical Safety Book.

Electrical Safety Handbook|National Electrical Safety Code (NESC) 2007|Electrical Safety in the Workplace.

Part 3. Cases Involving Construction Vehicles (concrete pump truck)

What kind of accident is about to happen?
Workers are leveling out the pavement while concrete is being poured into a second-story floor with a concrete pump truck. Can you predict what's about to happen?


Look what happened!
The boom of the concrete pump truck broke, causing the arm to fall on a worker.



Tips for preventing similar accidents
  1. During the pre-work inspection, ensure that there are no cracks in the boom mechanisms.
  2. Special and periodical voluntary inspections should include inspections for cracks in boom mechanisms. If there is a concern that the machine may be cracked, perform an inspection using a flaw detector.
  3. If an abnormality is detected, immediately conduct repairs or take other necessary measures.
  4. Observe all stability, maximum load, and boom tip hose length specifications established for the specific model of pump vehicle being used.
  5. When a boom is being used, restrict workers from walking beneath it.
Soure By The Japan International Center for Occupational Safety and Health (JICOSH)

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