To evaluate physical and mechanical properties of Lapp wire and cable and ensure that these products retain critical low temperature qualification values of flexibility when subjected to bending. These tests are performed to verify compliance with Lapp Mechanical Resistance Cable Attributes, Industry Tests, and Safety Agency Standards.
Several wire or cable samples are cut to a specified length and then are straightened to check for bends or curves. Specimens are then placed within the mechanical cold chamber at a defined low temperature for a specific period of time. Simultaneously, the mandrel of the appropriate size is required to be exposed to the same low temperature conditions and duration of time. Upon completion of low temperature aging, samples are individually removed and bent around the circumference of the mandrel for a specific number of windings. The test is completed once all the aged samples have been bent around the mandrel and are then allowed to relax under ambient environment for a specific time interval. Samples are then visually inspected for any occurrence of damage on both the jacket and insulation. Test results are compared to standard requirements electronically to avoid potential error and insure accuracy.
INDUSTRY REGULATORY STANDARDS