National Standard AC Electric Vehicle Charging Cable (105°C)

Executive Standards
- GB/T 33594-2017: "Cables for electric vehicle charging" (core national execution standard).

Model Code Definitions
- EV: Electric vehicle charging cable series.
- (R): Flexible conductor construction (stranded fine copper wires).
- E: Elastomer-type insulation material.
- Y: Polyolefin or related elastomer sheath material.
- S90: Represents the performance grade of the insulation or sheath. In the 105 °C type, it refers to the composite material that has undergone temperature-resistant enhancement treatment (EYS90 series).
- P / P2: Shielding code for signal/control cores (P – copper wire braided; P2 – copper tape wrapped).

Product Specification Range
The cable adopts a composite construction design, balancing power transmission and intelligent communication functions:
1. Main power cores and earth core (power): (3 – 5) cores × (1.0 – 70) mm².
2. Signal or control cores (communication): (1 – 5) cores × (0.5 – 1.5) mm² (with shielding construction).

Core Technical Parameters
1. Rated voltage (U₀/U): 450/750 V.
2. Rated operating temperature: The maximum continuous permissible conductor operating temperature is 105 °C.
3. Minimum bending radius: Typically not less than 6 times the overall cable diameter, ensuring flexible installation in confined spaces.
4. Environmental adaptability:
   - Exceptional heat resistance: The 105 °C temperature rating can significantly extend the physical life of the cable under severe thermal cycling.
   - Low-temperature resistance: Maintains good flexibility in cold climates, without hardening or cracking.
   - Oil and chemical resistance: Strong resistance to gasoline, lubricating oil, and coolant erosion.
   - UV resistance: Meets the requirements for long-term all-weather outdoor use.

Cable Structural Characteristics
- High-flexibility conductor: Made of high-quality oxygen-free fine copper wires precision-stranded, supporting tens of thousands of flexing cycles and meeting the usage conditions of frequent dragging of charging gun cables.
- Temperature-resistant enhanced layer: The insulation and sheath adopt modified 105 °C specialty materials, with outstanding dielectric strength and thermal deformation resistance.
- Communication assurance design: The control core section is equipped with a high-density shielding layer, effectively isolating external electromagnetic fields and harmonic interference generated by the power cores, ensuring accurate communication data for the BMS (Battery Management System).
- Feel and protection: The sheath surface is smooth and wear-resistant, with a good anti-slip effect. The material meets low-smoke zero-halogen environmental requirements, ensuring user safety.

Applicable Scenarios
- Commercial charging piles: High-power, high-load AC charging facilities in urban commercial areas, highway service areas, etc.
- Special high-temperature environments: Due to the 105 °C temperature resistance characteristic, particularly suitable for southern regions where summer ground temperatures are extremely high, or enclosed charging depots with poor heat dissipation conditions.
- High-end on-board connections: High-temperature-resistant connection wiring from the charging inlet inside the electric vehicle to the power distribution box.

Selection and Maintenance Recommendations
1. Current-carrying capacity verification: During selection, match the current-carrying capacity curve at 105 °C with the rated current of the charging pile. Under the same cross-section, 105 °C cables have a higher safety margin than 90 °C cables.
2. Construction confirmation: Confirm the number of control cores (1–5 cores optional) according to the communication protocol between the charging pile and the vehicle to ensure sufficient signal loops.
3. Routine maintenance: Although this cable has high temperature resistance, it is still recommended to regularly clean dust and oil stains from the cable surface, and check the waterproof sealing at the charging connector connection.
4. Storage reminder: Store in a ventilated and dry place, avoiding long-term compression with sharp objects that could cause permanent deformation of the sheath.