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Insulation layer of DC charging pile cable

The insulation layer of DC charging pile cable is an important part of the cable, which plays a crucial role in ensuring the safety and efficiency of charging. The following is a detailed introduction to the concept, role and working principle of the insulation layer:

Main component

concept

The insulation layer is a layer of material located outside the conductor of a DC charging pile cable. Its main function is to isolate the conductor from the external environment to prevent current leakage and electric shock accidents. The insulating layer usually uses materials including PVC (polyvinyl chloride), rubber, TPE (thermoplastic elastomer), TPU (thermoplastic polyurethane), etc. These materials have good electrical insulation properties and physical and mechanical properties.

Function

Prevent electric shock: The insulation layer can effectively prevent users from contacting the live conductor and avoid the occurrence of electric shock accidents.

Prevent short circuit: The insulation layer separates the conductors of different voltage levels to prevent short circuit and overheating and ensure the safety of the charging process.

Conductor protection: The insulation layer protects the conductor from the external environment, such as moisture and chemical substances, and extends the service life of the cable.

Electromagnetic interference shielding: The insulation layer can isolate the magnetic field inside the wire to a certain extent, reducing the impact of electromagnetic interference on the surrounding environment.

Compatibility guarantee: The material and design of the insulation layer should ensure compatibility with the physical size, electrical parameters and communication protocols of the charging pile, electric vehicle interface, to ensure the smooth charging process.

Working principle

Power transmission: When the DC charging pile is working, the insulation layer ensures that the current flows along the conductor without leaking to the outside, ensuring that the electric energy is safely and efficiently transferred from the charging pile to the battery of the electric vehicle.

Insulation resistance detection: The insulation performance of an insulating layer can be assessed by measuring its insulation resistance. Generally, the greater the insulation resistance, the better the insulation effect. The test instrument will apply a certain voltage to the charging pile, observe the change of current, and then calculate the value of insulation resistance. According to the relevant national standards, the qualified range of insulation resistance is determined to ensure that the insulation effect of the charging pile is qualified.

Prevent leakage: The insulation prevents current from leaking from the high-voltage components to the housing or other parts of the charging pile, thereby protecting personnel and equipment safety.

Maintenance of cable performance: In the design of charging pile cables, the thickness, material and structure of the insulation layer need to meet specific technical requirements to ensure that good insulation performance can be maintained under various environmental conditions.


In summary, the insulation layer of DC charging pile cables is a key part of ensuring charging safety, preventing electrical accidents and extending cable life. Through its insulation properties, the insulation layer plays a vital role in the normal operation of the DC charging pile.

DC CHARGING PIlE SERIES

DC charging pile is an efficient charging facility for electric vehicles, which uses direct current (DC) to directly charge the vehicle battery, significantly reducing the charging time. Compared with traditional AC charging piles, DC charging piles are able to provide higher power output and can usually charge an EV to 80% of its capacity in 30 minutes, providing users with a convenient charging experience.

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