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The Guardian Fall Team Blog

Guardian Fall Protection takes a lot of pride in knowing all of our products are thoroughly tested in accordance with the most current regulations. The American National Standards Institute (ANSI) Z359.14 fall protection standard, most recently revised in 2014, applies specifically to self-retracting lifelines (SRLs), and forms the basis for the majority of Guardian’s SRL testing.

Dynamic drop testing is one of the most important type of testing for SRLs. These tests vary in part based on the design and intended use of SRLs, but two standard dynamic drops are always required.Under Z359.14, all SRLs are subjected to both dynamic performance and dynamic strength drop tests.

Dynamic Performance Testing

Under dynamic performance testing, a 282 lb. weight is connected to the SRL and dropped from the test tower. The SRL must halt the fall without exceeding the maximum permitted force and deceleration distance, and then allow for the unit to fully function (retract and lock) post-test.

Dynamic Strength Testing

Dynamic strength testing, meanwhile, utilizes a 300 lb. weight subjected to a free fall, with the only condition that the unit not allow the weight to strike the ground. Basically, dynamic performance is designed to simulate a falling worker, while dynamic strength is designed to simulate the unit being subjected to twice the maximum force to which it is permitted to be exposed.

There are a number of technical details, testing parameters, and additional tests relating to SRLs that we will not address here, but rest assured that Guardian has everything covered in respect to these tests as well. Aside from the assurance that our products are achieving the highest possible levels of performance, dynamic drop tests can also be just plain fun to watch. Guardian’s quality control department does a detailed and meticulous job to get everything set up just right, and then it’s time for the drop!

Take a look at our Diablo SRL undergoing a dynamic performance test, with the added bonus of being conditioned to a chilling temperature of -40 degrees Celsius. Stops pretty quickly, doesn’t it!?