The temperature-rating tester for silicone rubber-insulated wires is a highly specialized, comprehensive testing system designed to scientifically evaluate the long-term thermal aging performance and short-term thermal tolerance of silicone rubber insulation-and the wires and cables manufactured from it-in high-temperature environments. This enables the precise determination of their temperature ratings (e.g., 180°C, 200°C, 250°C, etc.).
The system typically integrates several modular components, including a core thermal aging test chamber, a high-temperature pressure test apparatus, a hot-set (thermal elongation) test apparatus, and a mechanical property testing unit. The thermal aging test chamber serves as the system's hub; utilizing a precise PID temperature control system and forced air circulation, it creates a uniform, stable, and controllable high-temperature environment within the test chamber (with a temperature range typically spanning from ambient to over 300°C). It is capable of conducting continuous, long-term aging tests-lasting 168 hours, 1,000 hours, or even longer-according to pre-programmed parameters.
In conjunction with the high-temperature pressure test apparatus, the system can simulate the deformation of insulation subjected to the combined effects of high heat and mechanical stress. Meanwhile, the hot-set and tensile testing components are used to quantify material deformation and changes in tensile strength at elevated temperatures. By combining temperature control, mechanical testing, and data acquisition and analysis, the instrument employs accelerated aging simulations to provide critical, objective data for establishing the maximum long-term operating temperature for silicone rubber-insulated wires.
