During initial construction or maintenance operations, it is possible that wires/cables may become pinched as equipment is placed back into the vehicle. Wires/Cables with good insulation adhesion are less likely to be damaged during this pinching. The resistance to pinch test provides a means to quantitatively assess a wire’s performance.
In the resistance to pinch test, the specimen is placed perpendicularly across a steel rod then compressed under an anvil. The force on the specimen is slowly increased until the insulation is breached and a conductive path is formed between the specimen’s conductor and the test apparatus. The pass/fail criteria are product specific.