SRL ANSI Classes
An SRL, or Self-Retracting Lifeline is a device that contains a spring-loaded retracting web or cable lanyard wound around an internal drum. This device automatically locks and arrests the fall of a worker. SRLs come in a range of different shapes and sizes. There are also a range of types available for different environments and mounting styles. However, there is one thing that all SRLs used on a job site have in common: ANSI Class ratings. This week our Gear Experts® have put together a guide outlining the ANSI SRL Classes.
ANSI Classes
ANSI Z359.14-2014 classifies SRLs into two classes. Those classes are Class A and Class B. The main differentiators between the two classes are stopping distance and arresting forces.
Class A:
In order for an SRL to be Class A it must meet the following requirements: → Have a maximum arresting distance that does not exceed 24 inches. → Have an arresting force that does not exceed 1,350 pounds (6 kN) → Have a maximum peak force of 1,800 pounds (8 kN) → After environmental conditioning (hot, cold, or wet) the average arresting force must not exceed 1,575 pounds (7 kN) → After environmental conditioning (hot, cold, or wet) the maximum peak force must not exceed 1,800 pounds (8 kN)
Class B:
In order for an SRL to be Class B it must meet the following requirements: → Have a maximum arresting distance that does not exceed 54 inches. → Have an arresting force that does not exceed 900 pounds (4 kN) → Have a maximum peak force of 1,800 pounds (8 kN) → After environmental conditioning (hot, cold, or wet) the average arresting force must not exceed 1,125 pounds (5 kN) → After environmental conditioning (hot, cold, or wet) the maximum peak force must not exceed 1,800 pounds (8 kN)
Comparison:
Each of these devices has benefits based on the jobsite and working conditions. As you can see above a Class A device will stop your fall faster, but with more forces applied to the body. Class B devices, on the other hand, will take longer to arrest the fall, but will reduce the g-forces significantly. Which device you should use depends on your environment. If you have plenty of fall clearance below you, then a Class B device could be the perfect fit. However, if you are working in close quarters and don’t have that extra fall clearance, then you will need a Class A device. For more information about SRL Classes click here to visit our knowledge base.
ANSI SRL Classes Defined: Video
**The content of this blog is not intended to replace proper, in-depth training. Manufacturer’s instructions must also be followed and reviewed before any fall protection equipment is used. → Click here to see our full selection of SRLs
Get Social
Be sure to follow us on social media to keep up with everything GME Supply has coming up in 2018. It will be exciting – we promise!
Facebook | Instagram | YouTube | Twitter | LinkedIn | Google+
We’re Also on Snapchat
Simply snap or screenshot this image ↓ to follow GME Supply!
