Hot Set Tester

Model HV-EXP1690
热套测试仪——许多保利的重要属性ethylene insulation of cables depend on the degree to which the material is cross-linked. Determination of whether or not the dependent properties are fully realized after cross-linking can be carried out with the help of a hot set test. In this test the elongation of the insulating material at an elevated temperature under the action of a specified tensile load and its recovery after removal of the load are determined to evaluate the efficiency of the cross-linking. A dumbbell of specified shape and size is suspended from a vertical frame inside a hot air oven with a specified load suspended from its lower end. The elongation of the test specimen after fifteen minutes under the above conditions and its subsequent recovery after removal of the load are then evaluated. civil lab equipments manufacturers.