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钢芯铝绞线线股应力随温度变化

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钢芯铝绞线(ACSR)是一种应用广泛的架空导线,它由单层或多层铝绞线和增强外镀锌钢绞线组成,具有层状结构的特点。架空导线在正常运行时,受自身载流引起的焦耳热的影响,其温度往往高于周围的温度。在钢芯铝绞线内部,由于各层线股之间存在着空隙,且钢芯、空气和铝线的导热系数不同,导致钢芯铝绞线内部存在径向温差。钢芯铝绞线厂家

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