波纹光缆保护管( corrugated optic duct )
简称COD
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由内部
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电缆管
外管构
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整体
COD
通
高新技术工艺
制造
形
六孔
体管
内管
外管均采用 HDPE( 高密度聚乙烯 ) 制
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高度
弹性
尽管外管内设
数内管
仍
能够
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缠绕
缠管框
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材料
导电
绝缘性高
理想
电缆管道
另外外观
热膨胀
收缩相
低于传统导管系统
并由于内、外管
原材料
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始终保持统
比率
COD 能够弯曲自
用力弯曲
达
90 度
甚至更
角度
需要任何特殊
工具
弯曲或拉直
施工现场遇
障碍物都能绕行
重要
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COD 
能够导入直径
内管直径
75%
光缆
传统管
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能导入 50%