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UL electronic wire harness shock resistance

Aug 07, 2020 Leave a message

The UL electronic wire harness is the general name of the electronic wire that has been certified by UL. It is an electronic wire that meets the environmental protection requirements under the EU ROHS standard. It is usually used for weak current projects, such as internal wiring of electronic and electrical equipment.


The UL electronic wire harness is small in size and light in weight. The original design of the cable board is to replace the larger wire harness wire. On the current cutting-edge electronic equipment mounting board, the cable is usually the only solution to meet the miniaturization and mobility requirements. Cables (sometimes called flexible printed circuits) are copper circuits or printed polymer thick film circuits etched on a polymer substrate. For thin and light equipment with compact and messy structure, its design solutions range from single-sided conductive wires to messy multilayer three-dimensional assembly. The total weight and volume of the cable are reduced by 70% compared to the traditional round wire harness method. The cable can also increase its strength through the use of reinforced materials or liners to obtain additional mechanical stability.

wire harness

The plasticizer content of UL electronic wire is usually between 50PHR and 60PHR. Plasticizers with excellent heat resistance and electrical insulation properties are often chosen to add trioctyl trimellitate in order to improve heat resistance. It is usually the best to use multiple plasticizers together. In fact, the plasticizers in the PVC cable compound formula are also used together. Phosphate ester can be selected as the main agent of PVC cable material with strong insulation, and phthalate ester is used as the main agent for general-purpose grade. The heat resistance and volatility resistance of the plasticizer in UL electronic connection wires are the decisive factors for the high temperature resistance of the cable material. Therefore, the ul electronic wire has better impact resistance.


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