18
2026/09
Key Points for New Energy Vehicle High-Voltage Harness Cable Selection: Voltage, Current, Shielding, and Temperature Rise
New energy vehicle high-voltage harness cable selection must simultaneously meet four requirements: voltage rating matching the vehicle platform voltage, current capacity covering continuous and peak currents, shielding structure suppressing electromagnetic interference, and temperature rise control ensuring insulation life. Missing any one may lead to vehicle-level EMC test failure or long-term reliability risks.
18
2026/09
Energy Storage Cabinet Internal Wiring Standards: Circuit Classification, Spacing Control, and Temperature Rise Calculation
Energy storage cabinet internal wiring should be designed with three-level classification: power main circuits, auxiliary power circuits, and BMS sampling and communication circuits, with strong and weak currents routed separately and spaced apart. Temperature rise should be calculated with cable current capacity derated according to the actual ambient temperature inside the cabinet, to avoid accelerated insulation aging under long-term full charge/discharge conditions.
18
2026/09
Tinned Copper vs Bare Copper Conductors: An In-Depth Comparison of Oxidation Resistance, Solderability, and Cost
Tinned copper conductors outperform bare copper in oxidation resistance, corrosion resistance, and solderability, with higher reliability in long-term high-temperature and humid environments, at slightly higher cost; bare copper offers slightly better conductivity at lower cost, suitable for dry, normal-temperature scenarios with pre-treatment before soldering. For high-temperature silicone wire and marine climate projects, tinned copper is preferred.
18
2026/09
Analysis of Common Cable Failure Causes: Temperature Rise, Insulation Aging, Terminal Crimping, and Mechanical Stress
Cable failures are concentrated in four categories: excessive temperature rise due to insufficient current capacity or poor heat dissipation, insulation material aging under thermal-oxidative and media effects, local overheating from excessive contact resistance due to poor terminal crimping, and conductor breakage from bending and vibration-induced mechanical stress. Most failures can be avoided in advance through selection calculations and factory testing.
18
2026/09
Comprehensive Analysis of Wire and Cable Factory Test Items: From Conductor Resistance to Aging Tests
Routine wire and cable factory tests include conductor DC resistance, dielectric testing (spark/immersed water), insulation resistance, structural dimensions and appearance, aging tests, and flame retardancy tests, corresponding respectively to current-carrying capability, insulation safety, material life, and compliance requirements, and serving as the objective basis for determining cable conformity.
