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In 2009, the Bureau of Labor Statistics, United States recorded, as many as 605 workers died and an estimated 212,760 workers suffered serious injuries due to falling at the same level or falling to a lower level. The construction sector accounts for the highest death rate from falls.
Falls are still a threat to most workers working at heights. Falls can cause workers to experience fractures, head injuries, suspension trauma syndrome, trauma at heights, and even death. The average worker who falls from a height is caused by:
- Negligence of workers not using personal protective equipment
- Lack of adequate safety to prevent falls
- The personal protective equipment used is not suitable for use
- Improper use of personal protective equipment
Definition of Working at Height
Working at height is an activity or work activity carried out by workers at work on land or water surfaces where there is a difference in height and has the potential to fall which causes the workforce or other people to fall. being at work is injured or dies or causes property damage.
Many countries have not specified the minimum distance between heights in order to be categorized as working at height. However, many companies and workers who use the standard work above 1.8 meters or 2 meters are categorized as working at height.
Time It Takes When Falling From a Height
You may not have enough time to hold onto something secure when you lose your balance or when you're about to fall, but you can minimize your risk of falling by preventing it. Preparing bars/obstacles (handrails, guardrails) in the work area and/or using appropriate fall protection equipment (full body harness, shock absorber, and lifeline) are some preventive measures that can protect you from possible falls.
Working at Height: Understanding the Components of a Fall Protection System
In 2009, the Bureau of Labor Statistics, United States recorded, as many as 605 workers died and an estimated 212,760 workers suffered serious injuries due to falling at the same level or falling to a lower level. The construction sector accounts for the highest death rate from falls.
Falls are still a threat to most workers working at heights. Falls can cause workers to experience fractures, head injuries, suspension trauma syndrome, trauma at heights, and even death. The average worker who falls from a height is caused by:
Negligence of workers not using personal protective equipment
Lack of adequate safety to prevent falls
The personal protective equipment used is not suitable for use
Improper use of personal protective equipment
Definition of Working at Height
working at height is an activity or work activity carried out by workers at the workplace on the surface of the land or waters where there is a difference in height and has the potential to fall which causes the worker or other people in the workplace to be injured or die or cause property damage. .
Many countries have not specified the minimum distance between heights in order to be categorized as working at height. However, many companies and workers who use the standard work above 1.8 meters or 2 meters are categorized as working at height.
Time It Takes When Falling From a Height
You may not have enough time to hold onto something secure when you lose your balance or when you're about to fall, but you can minimize your risk of falling by preventing it. Preparing bars/obstacles (handrails, guardrails) in the work area and/or using appropriate fall protection equipment (full body harness, shock absorber, and lifeline) are some preventive measures that can protect you from possible falls.
Fall Protection System Components
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1. Safety Belt
The function of the safety belt is actually the same as a full-body harness, but the difference is that the use of this fall protection device is only attached to the worker's waist and the lanyard is attached to the anchor. Safety belts should not be used for jobs that allow workers to fall from a height.
Because if a worker falls, he can still suffer injuries to his waist or spine, even though the worker who falls doesn't hit the ground or is in a hanging position. Be sure to install a safety fence if you still want to use a safety belt when working at heights.
Full Body Harness
The use of a full-body harness is useful to reduce the risk of fatal injury from falling from a height. The full-body harness is designed to protect all parts of the worker's body such as the shoulders, upper thighs, chest, and pelvis, making it safer when working at heights. The use of a full-body harness is equipped with a D-Ring which is located at the back and can be attached to a lanyard, lifeline, and other components that are compatible with the body harness.
Shock Absorber
Shock absorbers (shock absorbers) are designed to absorb kinetic energy and reduce the pressure caused by falling. This fall arrest device has three important functions, including:
Reduces the maximum pressure force in holding the worker's body when falling
Reduce or prevent damage to components of fall arrest systems (fall arrest systems)
Reducing the pressure force on the anchor
Shock absorbers are usually manufactured separately or designed together with the lanyard. According to the CSA Z259.11 standard, the shock absorber can increase the length of the lanyard by up to 1.2 meters when receiving a load of 100 kg and falling from a height of 1.8 meters.
Lanyard
Is a short strap that generally serves to withstand shocks when workers fall freely. Workers can use a lanyard to limit shock during free fall with a maximum length of 1.2 meters. We recommend installing a lanyard/hook above or at least parallel to the chest, this is intended to reduce the vertical distance or the distance the worker's body falls. A lanyard is always positioned between the anchor point and the body harness
Anchor point (anchor)
Prior to working at height, workers must ensure that the anchors connected to the lifeline and/or lanyards are strong, stable, and properly positioned. If the use of the anchor is intended as a protection/resistance of workers from the possibility of falling, the anchor must be able to withstand a load of at least 3.5 kN (363 kg) or equivalent to four times the weight of the worker. Meanwhile, if an anchor is used as a support when falling, the anchor must support at least 22 kN (2.5 tons).
Fall arrestor (rope grab)
This device is used when workers need to move or move vertically, usually long distances. If the worker moves up, the rope grab will also move up following the worker's movement, but if the worker suddenly falls, this device will mechanically grip the lifeline.
Lifeline
A lifeline is defined as a flexible safety rope made of fiber, wire, or webbing. This lifeline is usually linked to an anchor point. The lifeline must have a minimum tensile strength of 2.75 tonnes or the equivalent of a rope diameter of 60 mm. This device can be mounted vertically or horizontally, depending on needs. Make sure the lifeline is securely attached to the anchor point and has not suffered any damage.
Retractable lifeline
The way a retractable lifeline works is almost the same as how a car seat belt works. When the worker performs a vertical or horizontal movement, the lifeline will extend or retract to its original condition automatically and will lock in the event of a sudden pull (the worker falls). The important thing that must be considered when using a retractable lifeline is to make sure the device is in an upright position with the worker's body to avoid the pendulum effect.
Understand the fall protection plan designed by the company.
- Understand the company's fall protection plan.
- Attend training to work at height, including use of fall protection equipment, work on scaffolding, lifts, or stairs.
- Make sure you have a work permit to work at height.
- Secure location for working at height.
- Use fall protection when working at height. Make sure you use proper fall protection and the equipment is in good condition.
- Check fall protection equipment before use.
- Hook the hook above your head or at least at chest level to reduce the amount of shock when you fall.
- When using scaffolding, make sure that the scaffolding is securely and firmly attached, the footing is stable, and the safety fence is installed. Ask the supervisor to check the feasibility of the scaffolding and install the building scaffolding OHS signs.
- Choose a standard ladder for working at heights, pay attention to the angle of inclination, and the position of the ladder must be stable, and make sure the ladder is in good condition.
- After the job is done, clean the work area and tidy up the equipment as before.
- Report to your supervisor if you find a potential fall hazard or accidental fall in the work area. Stop work when necessary until conditions are absolutely safe to resume work.