The crush resistance test method measures the capability of wire insulation to withstand an applied load, simulating the damage that may occur when insulated wire is crushed between two flat surfaces.
During the test, a tensile strength test machine is used with additional components, such as mandrels, plates, and a support anvil oriented perpendicular to the mandrel. A connection to the detection circuit is made, and a constant force is applied to the surface until contact with the conductor occurs. Eight tests are performed on each specimen, with the specimen being moved forward and rotated 90° before each test. The crush resistance is then calculated by taking the average of the eight test result values.
Upon request, the temperature of test performance can be altered.