Electronic wire harness customization standard requirements

With the increasing requirements of the use of intelligent equipment, their requirements for electronic wiring harness wiring is also gradually tend to higher levels, so the accuracy of the test equipment testing is also increasingly important. Electronic wire harness product process planning is the input and output of the product process, the entire planning program is around the quality, cost, operability open, and ultimately satisfied with the product characteristics of the various requirements. When the electronic wire harness process begins, first consider product quality, to ensure that the contact position is not stacked, not too large, not planning on the branch; secondly, consider the operability of workers production, the maximum limit to reduce the difficulty of the work; and finally, according to the guideline of the nearest hitch, try to save wire. Determine the lap wire in the wiring harness internal convergence of crimping point orientation, internal convergence of articulation point of the convergence of articulation methods, the development of skills requirements. Because different cars in the wire harness branch location, scale, and electrical function, lap point location, the number of different, lap wire internal articulation method is diversified.

Followed by the increase in the function of the car, the widespread use of electronic control skills, coupled with people's safety, comfort and economic requirements of the car more and more high, the car's electrical equipment, electrical functions are more and more; more and more electrical components, wires will be more and more; connecting the various electrical parts of the wiring harness is also more and more chaotic and sedan wiring harness has become more and more thick and heavy. Therefore, the advanced sedan introduced the bus equipment selection of multi-channel transmission system. Prepare all the necessary things, the construction personnel should be familiar with the use of various tools, check and notes. Prepare all the required heat-shrinkable materials and supporting materials, check whether the materials are qualified, according to the wire harness structure, specifications, determine the type of heat-shrinkable materials used. Construction site should be kept clean and dry, the use of blowtorches need to draw up safety measures. Harness core crimping quality directly affects the life of the connector and the safe operation of the harness. Filled with inorganic flame retardant, its mechanical strength, cracking elongation than non-flame-retardant polyolefin sheath material is much worse. Flame-retardant polyolefin sheath material mechanical strength is low, commonly used flame-retardant polyolefin sheath material oxygen index of 25 - 28. Flame-retardant effect is not very good, only suitable for the lower temperature, proper movement or zigzagging, flame-retardant requirements for the application of the occasions is not too high, is not suitable for the use of electronic wiring harnesses in the high flame-retardant requirements. Halogen-free, low-smoke flame-retardant polyolefin sheathing material is better in terms of flame retardancy and carbonization during combustion, and is suitable for use in electronic wire harnesses with high requirements for halogen-free, low-smoke, and flame-retardant functions. When the wire from the harness out of the connection with electrical equipment, if the rated current of the electrical equipment is very small, the cross-section should also be smaller, this time the main consideration of the section of the wire can be accepted in the process of driving cars, boom and the formation of the line may be broken.

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