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Thread: Does a torn wire jacket violate California electric code?

  1. #16
    Electrical Contractor/Instructor jwelectric's Avatar
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    Quote Originally Posted by ballvalve View Post
    Since underwater splices are made with rubber splicing tape and then covered with scotch 33 it sure seems that would be safe on this wire.
    no no no no no

  2. #17
    Jack of all trades DonL's Avatar
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    Quote Originally Posted by ballvalve View Post
    Since underwater splices are made with rubber splicing tape and then covered with scotch 33 it sure seems that would be safe on this wire.
    I agree it would be safe.

    It is safe now as is, because the cable sheathing is cut back when you terminate the connection, normally.
    And if the inner conductors are not nicked then the outer sheathing plays little role in safety.
    It just keeps the conductors together in one bundle.

    But Up to Code ? Depends on the inspector.


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  3. #18
    General Engineering Contractor ballvalve's Avatar
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    Much ado about nothing.

    Considering how my rats strip many feet of ROMEX® BARE, I wonder why its allowed at all. It needs a aluminum shield.

    REAL ROMEX® once had lead shielding.
    Last edited by Terry; 12-07-2011 at 10:13 AM.

  4. #19
    Plumber jimbo's Avatar
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    I suggest you double check what we are talking about. The wire you showdoes not look line " house wiring ". It looks like low voltage wire, and all of the mini split A/C that I am familiar with do NOT send line voltage to the inside. Line voltage ( 120 or 240) feeds the outside unit, and low voltage control wires, including 34 VDC to run the inside fan, go in on 18 ga. thermostat wire.

  5. #20
    Jack of all trades DonL's Avatar
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    Quote Originally Posted by ballvalve View Post
    Much ado about nothing.

    Considering how my rats strip many feet of ROMEX® BARE, I wonder why its allowed at all. It needs a aluminum shield.

    REAL ROMEX® once had lead shielding.
    They use to put Arsenic in the wire insulation so that rodents would not eat it. We used it on runs across the desert.


    DonL
    Last edited by Terry; 12-07-2011 at 10:14 AM.
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  6. #21
    Jack of all trades DonL's Avatar
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    Quote Originally Posted by jimbo View Post
    I suggest you double check what we are talking about. The wire you showdoes not look line " house wiring ". It looks like low voltage wire, and all of the mini split A/C that I am familiar with do NOT send line voltage to the inside. Line voltage ( 120 or 240) feeds the outside unit, and low voltage control wires, including 34 VDC to run the inside fan, go in on 18 ga. thermostat wire.
    I think the same thing jimbo.

    It is good quality wire with the pull string reinforcement build into the wire.

    But its gauge makes it about the size you would use for long runs, when used as a control wire.

    I do not think it is a big issue, But I don't live in California, and the rules differ.

    Enjoy your afternoon.

    DonL
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  7. #22
    Licensed Electrical Contractor Speedy Petey's Avatar
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    Quote Originally Posted by jimbo View Post
    I suggest you double check what we are talking about. The wire you showdoes not look line " house wiring ". It looks like low voltage wire, and all of the mini split A/C that I am familiar with do NOT send line voltage to the inside. Line voltage ( 120 or 240) feeds the outside unit, and low voltage control wires, including 34 VDC to run the inside fan, go in on 18 ga. thermostat wire.
    That's funny, I realize you are a plumber and probably install these systems all the time, but every one I have ever wired (and that is a lot of 'em) has sent line voltage between the units.

  8. #23
    Licensed Electrical Contractor Speedy Petey's Avatar
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    Also, if you look closely, it says "600V" on that cable in the picture. That is definitely line voltage cable.
    Actually it looks more like cord, which means it is unlikely that that is an actual image of the cable used.

  9. #24
    Plumber jimbo's Avatar
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    I am familiar with LG and Friedrich. In poking around on line, I did find that Mitsubushi and Sanyo do feed line voltage from out to in...
    I am still curious about that cable he showed in the pic. Does it look like 14 or 12 ga? or smaller?

  10. #25
    DIYer, not in the trades LLigetfa's Avatar
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    Quote Originally Posted by jimbo View Post
    I am still curious about that cable he showed in the pic. Does it look like 14 or 12 ga? or smaller?
    The writing on it says 14/4.

    Around here we need to use #12 AWG wire for 20 amps.

  11. #26
    Nuclear Engineer nukeman's Avatar
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    Guys,

    The pic is not of his wire. He just grabbed a pic off the web. Here is what he said:

    I've attached a web image that will give you an idea what this cable looks like, but mine looks like it has another black jacket underneath the one that's torn.
    It would be best to get a pic of the real install. It may need a new wire ran or the problem area may be able to be placed in a junction box and ran from there (assuming it would be accessible).

  12. #27
    Licensed Electrical Contractor Speedy Petey's Avatar
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    Quote Originally Posted by LLigetfa View Post
    The writing on it says 14/4.

    Around here we need to use #12 AWG wire for 20 amps.
    This is not the circuit conductor cable. It is feeding the outside unit from the inside unit.

  13. #28
    Licensed Electrical Contractor Speedy Petey's Avatar
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    Quote Originally Posted by nukeman View Post
    It may need a new wire ran or the problem area may be able to be placed in a junction box and ran from there (assuming it would be accessible).
    Or, since there is just a small 1.5" tear in just the cable jacket, it CAN be repaired with electrical tape.

  14. #29
    DIY Junior Member LCroft's Avatar
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    Sorry guys didnt mean to start a war!
    Actually after taking a closeup of the cable it's apparent that the installers used the wrong cable. The cable they used says SJEW E54864 (UL) 300V 90*C CSA LL39753 SJTW(TPE). The install manual calls for 600V insulation on the cable. BTW its a Mitsubishi.Name:  Power-Cable-Closeup.jpg
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  15. #30
    Licensed Electrical Contractor Speedy Petey's Avatar
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    What war??? All I see is a discussion.


    Why would they call for 600V cable? the only difference between 300V and 600V cable is the jacket thickness. 600V cable like that is for hard usage.

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