High-temperature aging

Method 4.7.11 is a high temperature aging test for flat power cables. A cable specimen 18 +/- 0.5 inches (457 +/- 13mm) in length has 0.25 +/- 0.10 inch (6.35 +/- 2.54 mm) of insulation removed from each end. The central portion of the cable is then bent at least halfway around a horizontally placed […] Read more

Folding

Method 4.7.10 is a folding test for flat power cables. A specimen of cable 26 +/- 0.062 inches (660 +/- 1.6 mm) is folded 180 degrees transversely and pressed between two pieces of smooth-surfaced flat metal twice the width of the cable, with a pressure of 301 pounds of force per inch of cable width.After […] Read more

Low Temperature Flex-Life

Method 4.6.2 is a low temperature flex-life test for cable assemblies containing molded sections or heat-shrunken transitions. The cable assembly is first aged in a circulating air oven for a minimum of 48 hours at 71 +/- 1C.The cable assembly is then conditioned for a minimum of 48 hours at the lower limit of the […] Read more

Pull Test

Method 4.5.3 is a pull test for electrical cable assemblies and cord assemblies. Cable assemblies are subjected to a static load applied between the connector and cable, with at least two feet of cable subjected to the load. The pull is applied parallel to the axis of the cable.A static load of not less than […] Read more

Cross-sectional area

Method 4.7.20 is a cross-sectional area measurement test for carbon-based conductive fibers. A cross-section of the conductor is examined using at least 400X magnification, and the cross-sectional area is measured in at least three different locations.The purpose is to determine the cross-sectional area of the entire conductor, which is a critical parameter for establishing the […] Read more

Coating workmanship (coated conductors only)

Method 4.7.19 is a coating workmanship test applicable to coated carbon-based conductive fibers only. A metallurgical cross-section of coated conductors is examined to demonstrate that the individual fibers are coated 360 degrees with metal.This examination is performed using magnification of at least 400X. The test verifies the quality and completeness of the metallic coating applied […] Read more

Termination crimp

Method 4.7.17 is a termination crimp test for carbon-based conductive fibers. Three size 26 uninsulated conductors, each approximately 3 feet (0.91 m) in length, are tested.When terminated with an appropriately sized crimp termination and standard tool, the terminated conductor shall withstand life testing in accordance with 4.7.10 (the flex life test).This test evaluates whether carbon-based […] Read more

Salt fog

Method 4.7.15 is a salt fog test for carbon-based conductive fibers. Three samples of size 26 uninsulated conductor, each approximately 3 feet (0.91 m) in length, are placed on PTFE or PTFE-coated mandrels that are 6 times the diameter of the wire with the ends secured.Lead wires are attached to each end of the test […] Read more

Tesnile Strength after Temperature Exposure

Method 4.6.4 tests tensile strength after temperature exposure for tie-down strap assemblies. The samples are prepared for the tensile strength test by removing the wire bundle from the test fixture, then removing the center wire(s) from the bundle to permit the wire bundle to collapse.The tie-down strap assembly is slipped off the collapsed bundle and […] Read more

Temperature/Humidity

Method 4.8.33 is a temperature/humidity test performed when specified in the applicable specification sheet. The cable is tested in accordance with EIA 364-31, humidity test procedure, method IV, with a cold temperature step.After completion of the testing, the cable is allowed to return to 68F (20C). Specimen failure is determined if the attenuation requirements of […] Read more

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