Self Retracting Lifelines - SRL
Self-retracting lifelines (SRL) are a key aspect of fall arrest kits when there is limited clearance to stop a worker's fall. These heavyweight devices automatically lock and decelerate an employee in the event of a free fall. SRLs are formulated to allow for normal movement, but engage rapidly when a fall is detected. This makes SRLs the industry standard when it comes to fall protection, as they require the absolute minimum distance to arrest a fall. It is much less likely that an employee will reach the ground or other hazardous objects below when wearing a self-retracting lifeline. Read More(+)
SRL ANSI requirements
In order to qualify as an SRL, a device must meet certain requirements set forth by ANSI in 2012, under the standard Z359.14. There are two classifications for SRLs, as follows:
- Class A has a stopping distance of 2 feet, the shortest distance in the industry. Additionally, the arrest force on the wearer cannot exceed 1,800 pounds, with the average being no more than 1,350 pounds.
- Class B will stop a fall within 4.5 feet. The maximum arrest force may not exceed 1,800 pounds, but the average force must be below 900 pounds.
The right SRL for the job
When determining the SRL model for your employees, a number of factors need to be taken into consideration. SRLs have an array of normal working distances, from as little as 10 feet to more than 60 feet. If your employees must cover large distances to perform their job duties, an SRL with a larger range is appropriate, to avoid consistent transfers from anchor point to anchor point. The height of the work surface should determine whether you purchase a Class A or Class B SRL.