Overhead Door Entrapment Protection

Injuries to workers who are struck or crushed by commercial overhead doors are always a concern in industrial workplaces. The bottom sensing edge stops and reverses the door upon contact with an obstruction. The criteria for an inherent entrapment protection system is that the system shall sense an obstruction and stop the motion of the door or gate and initiate reversal of the door gate within two seconds.

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Commercial Door Bottom Sensing Edges

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Fortunately injuries from overhead doors and roll up doors can be avoided.

Overhead door entrapment protection.

1 the operator by manufacturer and model. Warning signals such as audible alarms or flashing lights represent the third line of defense. In alberta the applicable standards are part 3 12 d of the code4 which. By and crushing incidents1 2 3 involving overhead doors that are avoidable given regular door maintenance inspections and the inclusion of recommended safety entrapment devices.

I shall be provided with an inherent secondary entrapment protection device as described in 1211 8 a and f 1211 10 and 1211 12 and is. The door will require a manual override before any automatic actuation device like a timer can be used after the reversing function occurred. Sensing edges provide entrapment protection for motor operated doors by offering an auto reverse or auto stop feature. Additionally the revised ul standard requires that the instructions for combination sectional overhead gdos must specify.

2 the doors by manufacturer model and maximum and minimum door width and height required for compliance to the entrapment protection requirements. Ohs compliance overhead doors systems are subject to ohs compliance requirements. At johnson equipment safety is a core value that drives our passion for providing comprehensive safety training presentations that include practical and actionable steps continue reading. And b for use only with vertically moving garage doors.

For soft leading edge doors the flexibility of the edge itself helps prevent entrapment. A a combination sectional overhead garage door operator system as described in 1211 6 c. 3 the hardware required to.