Three-Point-Control is More Safe
The three-point-control method requires a worker to use any three of their four limbs (hands and feet) for reliable control and stable support.
Using the hands and feet to control support is the preferred method and prevents many falls from ladders.
It requires the worker to place at least one hand on the ladder in a way that supports the full weight of the body if needed in an emergency.
Grip the horizontal rung. If a worker has both feet on the ladder and is gripping a horizontal rung they are much less likely to fall if both of their feet were to slip. A horizontal grip is stronger and can handle greater breakaway force.
Don't grip the vertical side rail. The grip while holding a vertical rail is weaker and the breakaway force is more likely to be too great for the grip to handle. During a fall, the hand might slide down the vertical rail until it disconnects from the ladder when it collides with the rung. A vertical grip can only support approximately 50 percent of person's bodyweight.
There are seven conditions for using three-point-control method while working from ladders. They include:
- Work only for short periods of time
- Use light tools and materials designed for single-hand use
- Make sure the ladder is stabilized
- Keep the ladder at the lowest height possible
- Make sure belly button remains between side rails
- Keep both feet at the same level
- Maintain a horizontal whole-hand power grip (grip using fingers and thumb)
Keeping three-points of control for good support is critical while a worker is climbing, moving or working at an elevation. It is important to note, the three-point-control method is not a substitution for the use of fall protection equipment.
Knowledge Check Choose the best answer for the question.
2-5. Using the three-point-control method while working on a ladder _____.
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