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Outside Steel Conduit Joints.

We must maintain mechanical and electrical continuity of steel conduit, so can't use P.T.F.E tape or Loctite 55 at screwed joints to keep them watertight. Has anyone ever had water ingress at screwed conduit joints outside? 543.3.6.

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  • Chris Pearson: 
     

    Even though we have discussed it twice recently, I am still struggling with the concept of forming a reasonably sealed system and then drilling holes in it.

    It will partly fill with water without the drainage holes as they also equalise the pressure avoiding water being sucked in.

Reply
  • Chris Pearson: 
     

    Even though we have discussed it twice recently, I am still struggling with the concept of forming a reasonably sealed system and then drilling holes in it.

    It will partly fill with water without the drainage holes as they also equalise the pressure avoiding water being sucked in.

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