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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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  • 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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  • 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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