What is the role of the new energy vehicle high-voltage wiring harness

High-voltage wire harnesses can be configured according to different voltage levels for internal and external wiring harness connections of electric vehicles. It is mainly used for signal distribution of wiring harnesses inside the distribution box, efficient and high quality transmission of electrical energy and shielding of external signal interference.　Wire diameter selection of high-voltage wire diameter selection design mainly refers to the following factors: ▶ wire design standards, such as LV216-1/2, ISO19642, etc. ▶ wire operating voltage platform and voltage range; ▶ circuit effective working current; ▶ high-voltage wire operating temperature; ▶ circuit peak current and peak duration; ▶ circuit insurance capacity; ▶ high-voltage harness plug-in allowable crimp wire diameter.　　High-voltage conductor selection of basic steps are as follows: 1. Calibration of high-voltage conductor operating voltage platform, the current general voltage platform in the 1000V DC below, so more than the selection of high-voltage conductor resistance 1000V DC; 2. According to the conductor current-carrying capacity and operating ambient temperature combined with the temperature rise curve, select the conductor diameter; 3. Comparison of the peak current, the peak duration and the conductor smoke curves, the peak duration of time is less than the wire Smoke time; 4. Comparison of the insurance fuse time and the wire smoke time, the wire smoke time is greater than the insurance fuse time; 5. After the above steps to determine the initial wire diameter, and then combined with the high-voltage plug-in models and specifications, to confirm that the wire can be applied, in particular, you need to check both sides of the high voltage plug-ins on both sides of the wire need to simultaneously meet the requirements of their requirements.

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