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浅谈下套管对埋地管道的影响分析

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浅谈下套管对埋地管道的影响分析

发布日期:2019-04-18 作者: 点击:

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(2)TAOGUANYUGUANDAOJUEYUANQIETAOGUANNEIYOUDAODIANJIEZHI

套管内未装设牺牲阳极材料,全套管与管道绝缘且套管内有介质时,外加阴极保护电流穿过隧道套管后通过套管内的水或土壤到达主管道表面,对主管道进行保护,套管内壁受到腐蚀,外壁受到保护,但由于套管的屏蔽作用 ,导致套管内的管道得不到充分的阴极保护 ,可能产生腐蚀。

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套管对埋地管道的影响分析


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