I. Definition and Core Features
Automotive cables are specialized wire and cable systems designed specifically for automobiles, new energy vehicles, and various types of motor vehicles. They are responsible for internal power transmission, signal control, and data transmission within the vehicle, serving as the neural and vascular network of the vehicle.

Core Characteristics:
Miniaturization and Lightweight Design: Conductor diameters start from 0.13 mm², with refined outer diameter designs.
Extreme Environmental Resistance: Operating temperature range of -40°C to 150°C (some reaching 200°C).
Vibration and Wear Resistance: Meets vibration testing requirements of 10–2000 Hz, with wear resistance exceeding 100,000 cycles.
Electromagnetic Compatibility: Twisted-pair or shielded structures ensure stable signal transmission.

II. Main Types and Application Scenarios
Powertrain System (35% of total wiring harness volume):
Engine wiring harness (oil-resistant, high-temperature resistant up to 150°C).
Motor three-phase power lines (600V/300A).
Battery pack connection cables (IP67 protection).

Body System (30% of total wiring harness volume):
Door/seat wiring harness (high bending cycle life).
Lighting wiring harness (UV aging resistance).
Air conditioning system cables (compatible with refrigerants).

Chassis System (20% of total wiring harness volume):
ABS/ESP sensor cables (electromagnetic interference resistance).
Steering system wiring harness (mechanical stress resistance).

Intelligent Systems (15% of total wiring harness volume):
ADAS camera cables (high-speed data transmission).
In-vehicle entertainment system cables (coaxial/fiber optic).
Vehicle antenna feed lines (low loss).

III. Core Advantages
Safety and Reliability Advantages (Fundamental Assurance):
Extreme Safety Design:
Fire resistance: Meets automotive-specific flame-retardant standards (e.g., FMVSS 302), with a burning rate ≤100 mm/min.
High-voltage safety: Insulation withstand voltage of new energy high-voltage lines ≥30 kV/mm, partial discharge ≤5 pC.
Mechanical protection: Tensile strength ≥15 MPa, scratch resistance test ≥10 N (ISO 6722).

Fault Prevention Capability:
Insulation self-diagnosis: Smart wiring harnesses can monitor insulation resistance changes in real time (accuracy ±5%).
Temperature rise warning: Built-in NTC sensors monitor temperatures from -40°C to 200°C.
Vibration protection: Passes sweep frequency vibration tests of 20–2000 Hz, with an amplitude of ±2 mm.