Measures For High Temperature Rubber Wire And Cable Damage
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1. Repair of large joints in the production process: During the production process, due to other reasons, the temporary stop, the sheath is disconnected, and the joints can be continuous. The method is to cut the plastic sheath into a forty-five-degree circular slope, retract it to the machine head, extend it into the mold core mouth for three centimeters, and then run the glue. After the glue is run, use your hands when driving. Connect the plastic layers, and then reshape and repair.
2. Repair of general large joints: cut both sides of the broken glue on the plastic layer with a knife along the circumference into a slope of forty-five degrees. The same plastic tube is cut along the axis on one side of the tube to form openings with an angle of forty-five degrees to each other. Put them at the glue break, tie them at equal distances with thin copper wires, and then use the same plastic strips on the hot-air plastic welding torch. After welding, bonding and welding are done, and then compacted, compacted, and flattened with a copper sheet.
3. Quality defects appear on the longer length of the cable sheath from one end, and most of the sheath of the other broken end is good. The length of the cable is fixed, and the repair method of large joints in the production process can also be used. Only after removing the defective end of the sheath, choose a larger mold on the extruder, according to the process, first extrude the end of the sheath, and gradually increase the traction speed to the large joint so that the sheath at the interface gradually It is thinned and wrapped on the original sheath that is cut into a slope shape, and it will be reshaped and repaired after the machine is off.
Waterproof test standards for high temperature rubber wires and cables:
Generally speaking, the waterproof rating, approval reference number and UL identifier are printed on the cable.
Household level-CMX level The lowest UL waterproof level in communication wiring. This is suitable for home or small office systems where each cable is laid separately. This type of cable should not be laid in bundles.
Pressurization level-CMP level This is the most demanding waterproof cable standard, in line with the UL910 standard, this type of cable is usually installed in the air return pressurization system used in ventilation ducts or air handling equipment.