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Romex and Steam pipes

Low-pressure steam pipes are WAY below the flash point of paper--approximately 454°F.

p.s. As far as I can find, the flash point of the asphalt-based product used to make kraft paper a vapor retarder is required to be at least 500°F.


  • DM_2
    DM_2 Member Posts: 5
    Romex and Steam pipes

    I'm having some electrical work done and I noticed that some of the new romex wiring is coming very close to and probably touching some of my uninsulated steam pipes.
    Does anyone know if this is o.k..
  • Steamhead
    Steamhead Member Posts: 16,726
    No it's not

    insulate your pipes or have the wires rerouted.
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
  • DM_2
    DM_2 Member Posts: 5

    What about insulation with paper backing. Can the paper come in contact with the pipes?
  • Ken_8
    Ken_8 Member Posts: 1,640

    If the steam pipes are insulated and the romex touches the insulation's outer paper wrap that is fine. The thermoplastic of both the conductors and the sheathing of romex is not suitable for 200° service. As per the NEC (national electrical code), which is probably the only nationally recognized code without a challenger...

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  • Empire_2
    Empire_2 Member Posts: 2,343

    So in other words,...after a period of time you can expect to be the new Chevy Chase Lampoons Christmass? Only if Grandma turns on the switch and you have checked all the cords....:) That is, if the romex is touching exposed pipe. Sorry if I was out-a-line but it was there for the taking.
    Mike T.
This discussion has been closed.