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Outside Steel Conduit Joints.

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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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    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.

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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.

    Like a bath tub Chris, the holes are only at the lowest point for drainage.

    Z.

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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.

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

    I can understand an IP65 socket at one end being sealed (assuming no drain holes breaching the IP rating), but it would be an odd DB that was outdoors; so wouldn't the supply end be at atmospheric pressure?

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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's what I, sparks, used to do… condensation etc - too much pressure has to be released BUT… as per usual, I could be wrong!

    regards…

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