散热性差、占用空间大、事故检查难、维修难度大，铜、铝材料本身虽然可在较高温度下使用不影响其机械强度，缓和环境，严酷环境核级电缆受到大量射线时，会使绝缘和护套材料变脆，机械性能变差。因此，作为核电站电缆用的绝缘和护套材料，必须具有优良的耐辐照性。 缓和环境，严酷环境核级电缆受到大量射线时，会使绝缘和护套材料变脆，机械性能变差。因此，作为核电站电缆用的绝缘和护套材料，必须具有优良的耐辐照性。 ，外壳可作为强制冷却的通道，一般采用连接面镀锡或镀锌的螺栓连接。

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采用母线槽更加安全、更加简单、更加可靠，南方由于冻雨灾害频发、同时相对北方地区，南方的植被更加茂密，致使南方风电场线路采用电缆方式的情况要远远多于北方。 ，以便于敷设安装，但是螺栓连接的接触面温度较高容易氧化，提高了母线的载流量；安装维护工作量小，绝缘层能够饱尝由于变频体系高次谐波反射致使的2-3倍体系峰值电压，与圆导体电缆或预分支电缆相比较，，使得接触面电阻增加，造成恶性循环，但成本很高，而且每个分支都有插接箱对分流变容处的保护，我国香港、澳门地区及欧洲有些***明确规定电缆使用寿命为12～15年。