ISO 9001 On-board wiring harness

　　ISO 9001 Automotive Wiring Harnesses: Empowering with Quality, Protecting Automotive Electrical Safety and Efficient Operation

　　In the automotive industry, wiring harnesses are the "nerves" connecting the entire vehicle's electrical system. Their quality is directly related to the stability of vehicle power transmission, signal exchange, and safety control. ISO 9001 automotive wiring harnesses adhere to internationally recognized quality management systems throughout the entire design, production, and testing process, creating compliant, reliable, and adaptable automotive electrical connection solutions. This provides a core defense for the safe operation of fuel-powered vehicles, new energy vehicles, and intelligent connected vehicles.

　　1. Anchored in ISO 9001, Building a Full-Process Quality Closed-Loop

　　As an automotive wiring harness product that complies with the ISO 9001 quality management system, we integrate quality control into every process from the very beginning, strictly meeting the system's requirements for process control, risk prevention, and continuous improvement:

　　Quality Preemption in the Design Phase: Based on the ISO 9001 principle of "customer-oriented," we utilize 3D modeling and simulation analysis to proactively avoid wiring harness layout interference and insufficient current carrying capacity, ensuring that the design meets vehicle performance requirements.

　　Precise Production Process Control: We implement an SPC (Statistical Process Control) system to monitor key processes such as conductor crimping, insulation wrapping, and harness assembly in real time. Quality inspection nodes are established at each process to eliminate defects such as wire diameter deviation, loose terminal connections, and insulation damage, ensuring the design meets vehicle performance requirements. "Zero defective products flow into the next process";

　　Full lifecycle traceability: Laser coding uniquely identifies each wire harness, recording information such as raw material batch (such as copper conductors and flame-retardant insulation), production team, test data, and production date. This allows for rapid tracing back to the specific process, meeting ISO 9001's core traceability requirements and facilitating subsequent quality analysis and improvement.

　　2. Core Technical Features, Adaptable to Complex Automotive Operating Conditions

　　To withstand the complex driving environments of high temperature, vibration, humidity, and electromagnetic interference, ISO 9001 automotive wiring harnesses have been technically optimized to ensure long-term stable operation:

　　Highly Weather-Resistant Materials: The conductors utilize high-purity electrolytic copper to reduce resistance loss and improve current transmission efficiency. The insulation and sheathing are made of flame-retardant PVC, XLPE (cross-linked polyethylene), or TPE (thermoplastic elastomer), with a temperature range of -40°C to 150°C. They withstand engine compartment temperatures, winter temperatures, and rain, and comply with the automotive industry's RoHS environmental protection requirements.

　　Vibration- and Interference-Resistant Design: The wiring harness mounting clips are made of high-strength nylon with a loose-fitting structure, capable of withstanding frequencies from 10 to 2000Hz. Continuous vibration prevents wiring harness wear and terminal detachment caused by vibration. Shielding layers (such as aluminum foil or braided shielding) are used on signal harnesses to reduce electromagnetic interference from onboard radar, central control systems, and other devices, ensuring stable signal transmission.

　　Precise Electrical Performance: Rigorous continuity testing, insulation resistance testing (≥100MΩ), and withstand voltage testing (AC 1500V/1min without breakdown) ensure that wiring harnesses meet electrical performance standards, preventing vehicle failures caused by short circuits and leakage. For example, the insulation protection of high-voltage wiring harnesses in new energy vehicles effectively prevents the risk of electric shock.

　　3. Scenario-Specific Adaptation, Covering the Needs of Multiple Vehicle Types

　　Whether it's a traditional fuel-powered vehicle, a new energy vehicle (pure electric/hybrid), or an intelligent connected vehicle, ISO 9001 automotive wiring harnesses offer customized solutions tailored to the electrical needs of each vehicle:

　　For fuel-powered vehicles: We focus on engine, chassis, and body wiring harnesses, ensuring signal and power transmission for the fuel injection, braking, and lighting systems. For example, the engine wiring harness can withstand high cabin temperatures, ensuring precise ignition control.

　　For new energy vehicles: We develop high-voltage automotive wiring harnesses for high-voltage systems (batteries, motors, and electronic controls). These harnesses feature a high-voltage interlock (HVIL) function. If a wiring harness disconnects unexpectedly, they quickly disconnect the high-voltage circuit to prevent electric shock, while also meeting the special quality requirements of ISO 9001 for new energy vehicle components.

　　For intelligent connected vehicles: We customize high-speed signal harnesses for autonomous driving sensors (cameras, lidar) and connected vehicle modules. These harnesses support high-speed transmission protocols such as Ethernet and CAN FD, ensuring real-time data exchange within intelligent driving systems and preventing safety hazards caused by signal delays.

　　IV. Rigorous Testing Strengthens Quality Trust

　　ISO 9001 automotive wiring harnesses not only strictly control quality during production but also undergo multi-dimensional testing to verify product reliability, ensuring they meet standards upon delivery:

　　Environmental Simulation Testing: Testing is conducted through high and low temperature cycling (-40°C to 150°C, 500 cycles), damp heat testing (40°C, 95% humidity, 1000 hours), and salt spray testing (5% NaCl solution, 1000 hours) to verify the wiring harness's performance stability in extreme environments.

　　Mechanical Performance Testing: Testing is conducted through bending testing (≥10,000 cycles), tensile testing (tension ≥50N), and abrasion testing (≥500 reciprocating friction cycles without damage) to simulate the mechanical stresses experienced in vehicle driving and ensure the wiring harness is resilient to damage.

　　Compliance Certification: In addition to meeting ISO 9001 quality management system requirements, we have also obtained IATF 16949 automotive quality management system certification and UL Safety certifications, etc., meet the entry standards of mainstream global automotive markets and provide automakers with global quality assurance.

　　Choosing an ISO 9001 automotive wiring harness is more than just selecting an electrical connection component; it's choosing an automotive electrical safety solution that meets international quality standards. It mitigates risks through rigorous quality control, ensures performance with technical features adapted to complex operating conditions, and meets diverse needs with scenario-based customization. It provides a solid "neural network" supporting the automotive industry's safety upgrades and intelligent development, ensuring more reliable and secure operation for every vehicle.