Establish A Testing Standard System For Electrical Fittings Supporting New Energy Power Generation Equipment
In recent years, with the continuous introduction of various forms of new energy power generation devices, such as wind power, photovoltaics, and energy storage systems, the number of corresponding power transmission and distribution equipment has surged. As a fundamental connecting component in power transmission, transformation, and distribution systems, the quality and performance of component overhead line connectors directly affect the safety and operational reliability of the system. Currently, there are standards such as GB/T 2317.4-2023 that specify the type tests, sampling inspections and routine inspections for overhead line hardware, covering mechanical performance, electrical characteristics and acceptance rules.
Based on the diverse operating environments and increasingly stringent reliability requirements of new energy power generation equipment, a comprehensive testing standard system for new energy power generation equipment under standard overhead power line connectors can be established. This system should include: corona and radio interference tests for high voltage and high frequency pulses; environmental aging tests under different climatic conditions (such as high temperature, cold, humid heat, and salt spray); material composition analysis and thermal cycling tests; and comprehensive strength tests including mechanical, current-carrying, vibration, and shock tests.
It is recommended that the testing standard system be compatible with existing national standards (such as the GB/T 2317 series of specifications) while expanding to include adaptability testing for special operating conditions in new energy scenarios. For example, the adaptability of overhead power line hardware in photovoltaic power plants, high-voltage direct current transmission systems, and energy storage grid-connected devices is evaluated, covering dimensions such as corrosion resistance, fire resistance, aging resistance, electrical insulation, and conductivity reliability.
