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  1. #1
    Join Date
    Aug 2008
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    Default Moving Cold Water Ground

    I currently have a ground wire running from my service panel to the incoming cold water pipe in my basement. This is a bare copper wire in metal conduit.
    My question is this:
    I would like to re-route this ground due to a remodel. Do I have to use the bare copper in conduit or is there another option out there that is easier to work with such as a copper wire in plastic sheathing, etc?

  2. #2
    Join Date
    Aug 2007
    Location
    Denver, CO
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    Default Re: Moving Cold Water Ground

    The simple answer is that if is #6 or larger is does not need to be in conduit in exposed locations. Regardless of size if it is not exposed to physical damage (Inside the house** it does not need to be in conduit.

    However, it can not be spliced and must be "continuous"

    Electrical PVC and fittings are a great way to protect the wire in exposed locations and a plus is that PVC does not need to be bonded since it is a non-conductor.

  3. #3
    Join Date
    Dec 2008
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    1

    Default Re: Moving Cold Water Ground

    Kentvw made some good points but the ground wire can be spliced, it is in the NEC under an exception in the grounding chapter. It can be spliced but only by irreversable crimp type connectors (usually called hi-press. Or where it attaches to ground bars in panels.

  4. #4
    Join Date
    Jun 2007
    Location
    Fayette County, Ohio
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    5,557

    Default Re: Moving Cold Water Ground

    Use only a continuous wire. Although it may be an exception in the NEC it may not be allowed by local code. As one inspector told me "I don't care what the NEC says, this is what we require." And the one thing I have learned is the inspector is always right.
    Jack
    Last edited by JLMCDANIEL; 12-02-2008 at 12:26 AM.
    Be sure you live your life, because you are a long time dead.-Scottish Proverb

  5. #5
    Join Date
    Aug 2008
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    9

    Default Re: Moving Cold Water Ground

    Thanks for the help guys.
    I believe I will just disconnect the ground from the cold water, pull the wire through the conduit and re-route it without any conduit at all since this is in the house and is not exposed to the elements.

  6. #6
    Join Date
    Jan 2008
    Posts
    731

    Default Re: Moving Cold Water Ground

    Quote Originally Posted by simon View Post
    I currently have a ground wire running from my service panel to the incoming cold water pipe in my basement. This is a bare copper wire in metal conduit.
    My question is this:
    I would like to re-route this ground due to a remodel. Do I have to use the bare copper in conduit or is there another option out there that is easier to work with such as a copper wire in plastic sheathing, etc?
    Quote Originally Posted by simon View Post
    Thanks for the help guys.
    I believe I will just disconnect the ground from the cold water, pull the wire through the conduit and re-route it without any conduit at all since this is in the house and is not exposed to the elements.
    i think you should check with your code authority first before doing JUST what you said to modify your system not maintenance or repair. exposed to the elements outdoors not the same issue as exposed to potential physical damage inside the finished or unfinished basement. do you understand what bonding means?
    Last edited by Blue RidgeParkway; 12-02-2008 at 10:56 AM.

  7. #7
    Join Date
    Jun 2007
    Location
    Shamokin, Pa.
    Posts
    645

    Default Re: Moving Cold Water Ground

    Quote Originally Posted by JLMCDANIEL View Post
    Use only a continuous wire. Although it may be an exception in the NEC it may not be allowed by local code. As one inspector told me "I don't care what the NEC says, this is what we require." And the one thing I have learned is the inspector is always right.
    Jack
    I agree 100%. I have been told the same as well. And guess what, you say "Thank You" and do just that.

  8. #8
    Join Date
    Aug 2007
    Location
    Denver, CO
    Posts
    666

    Default Re: Moving Cold Water Ground

    Actually, jga77 was 100% correct in his post.... So I stand corrected.

    2008 NEC

    "250.64 Grounding Electrode Conductor Installation.
    Grounding electrode conductors at the service, at each
    building or structure where supplied by a feeder(s) or
    branch circuit(s), or at a separately derived system shall be
    installed as specified in 250.64(A) through (F).
    (A) Aluminum or Copper-Clad Aluminum Conductors.
    Bare aluminum or copper-clad aluminum grounding conductors
    shall not be used where in direct contact with masonry
    or the earth or where subject to corrosive conditions.
    Where used outside, aluminum or copper-clad aluminum
    grounding conductors shall not be terminated within
    450 mm (18 in.) of the earth.
    (B) Securing and Protection Against Physical Damage.
    Where exposed, a grounding electrode conductor or its enclosure
    shall be securely fastened to the surface on which it
    is carried. A 4 AWG or larger copper or aluminum grounding
    electrode conductor shall be protected where exposed to
    physical damage. A 6 AWG grounding electrode conductor
    that is free from exposure to physical damage shall be permitted
    to be run along the surface of the building construction
    without metal covering or protection where it is securely
    fastened to the construction; otherwise, it shall be in
    rigid metal conduit, intermediate metal conduit, rigid nonmetallic
    conduit, electrical metallic tubing, or cable armor.
    Grounding electrode conductors smaller than 6 AWG shall be
    in rigid metal conduit, intermediate metal conduit, rigid nonmetallic
    conduit, electrical metallic tubing, or cable armor.
    (C) Continuous. Grounding electrode conductor(s) shall
    be installed in one continuous length without a splice or
    joint except as permitted in (1) and (2):
    (1) Splicing shall be permitted only by irreversible
    compression-type connectors listed as grounding and
    bonding equipment or by the exothermic welding process.
    (2) Sections of busbars shall be permitted to be connected
    together to form a grounding electrode conductor."

    The issue, as I see it; few people other than electrical contractors and their trained employees neither have the access or the knowledege to effectivly use these types of tooling and splicing methods.

  9. #9
    Join Date
    Aug 2008
    Posts
    9

    Default Re: Moving Cold Water Ground

    I have no reason to splice the wire so I am good there.
    I will check out the electrical PVC option though for extra protection.
    Thanks guys.

  10. #10
    Join Date
    Jan 2008
    Posts
    731

    Default Re: Moving Cold Water Ground

    Quote Originally Posted by simon View Post
    I have no reason to splice the wire so I am good there.
    I will check out the electrical PVC option though for extra protection.
    Thanks guys.
    sounds like a good plan and you're welcome.

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