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With the rapid development and popularization of electric vehicles, high-voltage cables, as an important part of electric vehicles, undertake the key task of transmitting high-voltage electrical energy. In the design and manufacture of high-voltage cables, shielding technology is an important technology, which can improve the performance and safety of cables. The differences between shielded and unshielded high-voltage cables for electric vehicles will be introduced below.

1. Structural differences: shielded high-voltage cables are designed with a shielding layer, which usually consists of a metal foil or metal braid. The shielding layer is located between the insulation layer and the conductor of the cable, playing the role of isolation and shielding, which can effectively reduce the cable from the influence of external electromagnetic interference. Unshielded high-voltage cables are not designed with a shielding layer, only the insulation layer and conductor. Compared with shielded high-voltage cable, it is weaker in anti-interference ability.

2. Anti-interference ability: due to the existence of the shielding layer, the shielded high-voltage cable has a strong anti-interference ability. The shield can effectively block the interference of external electromagnetic fields, reduce the loss and distortion of the signal inside the cable, and improve the quality and stability of signal transmission. Unshielded high-voltage cable is weaker in terms of anti-interference ability compared to shielded high-voltage cable. It is susceptible to interference from external electromagnetic fields, which may lead to signal attenuation and distortion.

3. Safety: The shielding layer of shielded high-voltage cables not only prevents the interference of external electromagnetic fields, but also prevents the leakage of electromagnetic waves inside the cable, reducing the interference with the surrounding equipment and environment. This design improves the safety of the cable and reduces the risk of potential electromagnetic radiation. Of course, unshielded cables are also chosen in most cases when wiring away from sources of interference. Unshielded cables are characterized by lightweight, flexible and high performance. And unshielded cables are easy to install, more versatile, also has a high degree of reliability, the price is relatively cheap compared to shielded cables.

Electric vehicle high voltage cables can withstand high voltage and high current loads to ensure the safety and efficiency of the charging process, and have important application value in the field of electric vehicle charging.OMG's deep cultivation in the field of electric vehicle cables has been for decades, and in the process of designing and producing the cables, we take into account the temperature range, waterproof performance, corrosion resistance, insulation performance, pressure resistance, abrasion resistance, and bending performance, etc., so as to ensure that the high-voltage OMG's full line of products are delivered to customers after passing performance tests, guaranteeing the safety and reliability of the cables and providing efficient and safe energy transmission for electric vehicles.