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Thread: Instrument connection using ICEA/NEMA Method 1

  1. #1
    Join Date
    Jan 2018
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    Instrument connection using ICEA/NEMA Method 1

    Hi,

    For the project I am working on I need to use multi-conductor cable with a color sequence based on ICEA/NEMA Method 1 table E-2 (WITHOUT WHITE & GREEN WIRE) for control. I have to connect multiple solenoids. They have 3 connections points (2 for 120V and 1 for ground). Now my question is : What should I do with the ground connection ? If I am not mistaken, NEC code does not allow you to use another color than green but the requirements for this project are to use multi-conductors without any green wire...

    EDIT : Forgot to mention that these cables are routed in RGS conduit.

    Thanks,
    Francis

    BTW, this is my first post, I am french speaking Canadian and I have to work on multiple American projects. This forum and you guys saved my life more than often, THANK YOU !
    Last edited by GrandRoi; 01-12-18 at 07:13 PM.

  2. #2
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    bonne journée mon ami, bienvenue!
    "Electricity is really just organized lightning." George Carlin


    Derek

  3. #3
    Join Date
    May 2005
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    Richmond, Virginia
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    Francis, can the conduit and cabinets it terminates be used for the ground? If not, can you run a green conductor separate from the multi-conductor cable for the ground?
    Code references based on 2005 NEC
    Larry B. Fine
    Master Electrician
    Electrical Contractor
    Richmond, VA

  4. #4
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    Quote Originally Posted by LarryFine View Post
    Francis, can the conduit and cabinets it terminates be used for the ground? If not,can you run a green conductor separate from the multi-conductor cable for the ground?
    I dont think the code allows a separate conductor to serve as the egc.

    I do seem to recall some dispensation on reidentification when using a m/c cable.
    Bob

  5. #5
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    Quote Originally Posted by petersonra View Post
    I dont think the code allows a separate conductor to serve as the egc.

    I do seem to recall some dispensation on reidentification when using a m/c cable.
    see 200.6 (E) exception 1 for grounded conductors.

    see 250.199 (B) for ground conductors.

    These exceptions would allow you to remark a conductor in a m/c cable as white for the grounded conductor and green for the ground conductor.
    Bob

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