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Thread: cable in conduit cable end seals

  1. #1
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    cable in conduit cable end seals

    what do you all use for end sealing cables, crouse hinds epoxy TSC? it isn't clearly labelled for this. what else is available?

    i'm talking about when you run cable capable of transmitting gases in rigid, don't open the jacket in the seal off but seal the cable end in the enclosure where it terminates.

  2. #2
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    Are we talking about multiconductor cable in conduit?
    "Bob"
    Robert B. Alexander, P.E.
    Answers based on 2014 NEC unless otherwise noted.

  3. #3
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    Quote Originally Posted by Wire-Smith View Post
    what do you all use for end sealing cables, crouse hinds epoxy TSC? it isn't clearly labelled for this. what else is available?

    i'm talking about when you run cable capable of transmitting gases in rigid, don't open the jacket in the seal off but seal the cable end in the enclosure where it terminates.

    If you were running ONLY multiconductor cable such as TC-ER or MC-HL (no conduit) you could use the TSC Epoxy Sealing compound along with a TMCX connector. But since the cable is routed within conduit, I believe you'll to have to use a conduit seal - such as EYS - open the jacket/separate the conductors and apply Chico compound.

  4. #4
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    Quote Originally Posted by rbalex View Post
    Are we talking about multiconductor cable in conduit?
    yes

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    Quote Originally Posted by Dale001289 View Post
    If you were running ONLY multiconductor cable such as TC-ER or MC-HL (no conduit) you could use the TSC Epoxy Sealing compound along with a TMCX connector. But since the cable is routed within conduit, I believe you'll to have to use a conduit seal - such as EYS - open the jacket/separate the conductors and apply Chico compound.
    i disagree 501.15(D)(2) exception

    cable w/ gas/vapor-tight sheath

  6. #6
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    Quote Originally Posted by Wire-Smith View Post
    i disagree 501.15(D)(2) exception

    cable w/ gas/vapor-tight sheath
    The cable sheath is not the cable core - That’s why you need the EYS/Chico etc


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  7. #7
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    Quote Originally Posted by Dale001289 View Post
    The cable sheath is not the cable core - That’s why you need the EYS/Chico etc


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    did u read the exception, you don't have to open the sheath in a seal-off, just seal cable end at termination

  8. #8
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    Quote Originally Posted by Wire-Smith View Post
    did u read the exception, you don't have to open the sheath in a seal-off, just seal cable end at termination
    There is no approved UL sealant for multiconductor cable ends when installed in conduit - you need a tmcx for that


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  9. #9
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    Quote Originally Posted by Dale001289 View Post
    There is no approved UL sealant for multiconductor cable ends when installed in conduit - you need a tmcx for that


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    doesnt need to be ul approved, just approved (by ahj)

  10. #10
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    Quote Originally Posted by Wire-Smith View Post
    doesnt need to be ul approved, just approved (by ahj)
    Wrong.


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