Applications and performance of high-voltage cables for automotive applications

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Applications and performance of high-voltage cables for automotive applications
Posting date : Jul 06, 2022
Free Member Scince Oct 23, 2021
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Application: High-voltage cables are connected to battery systems, powertrain, high-voltage electric control systems, charging systems, high-voltage equipment and other wiring harness systems. Is the main transmission of electricity to each spare part module makes the vehicle drive

Caution: Any cable used on a vehicle should be insulated to prevent accidental contact and short circuits. Most cables are made of copper because of its low resistance and strong plasticity. Insulation is usually made of polyvinyl chloride. High voltage wiring harnesses require greater insulation to prevent voltage leakage because if leakage occurs, the human body will be greatly injured in the event of accidental contact. Inside the vehicle, stickers with various symbols are usually attached to the high-voltage harness and bright orange insulation is used to indicate caution.

High-voltage cable requirements : However, if the entire copper core is used as a conductor, not only is it difficult to layout inside the vehicle, but it may pierce into the cockpit after a collision, increasing the safety risk. Considering strength and toughness, and most importantly, safety, a multi-core conductor is also a better choice. To solve this problem, high flexibility and toughness of high voltage cables are very important.

However, routing through vehicles is only easier to achieve with a more flexible design. The flexibility of high-voltage cables is mainly determined by the design of the conductors. To meet the flexibility of high voltage cables, the conductor is made up of multiple strands of finely calibrated oxygen-free copper wire. The choice of sheath material is also a key factor in the flexibility and strength of the cable. Materials with properties such as high and low temperature resistance, oil resistance, water resistance, flame resistance, tear resistance, insulation, and UV aging resistance should be selected.

For more information about EV cable and Charging cables, Please visit OMG's official website:

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