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NFPA 70 517.14 question

Discussion in 'Electrical Codes' started by linnrg, Sep 12, 2019.

  1. linnrg

    linnrg Sawhorse

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    Would the Panelboard bonding described on 517.14 have to be in a conduit from panelboard to other panelboards?

    would 300.3 (2) apply?
     
    #1 linnrg, Sep 12, 2019
    Last edited: Sep 12, 2019
  2. jar546

    jar546 *****istrator

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    1) Nothing requires the #10 bond to be in conduit, however, if it was in a metallic conduit, 517.19(E) would apply.
    2) I am not aware of any 1000V or more systems in any hospital that I have worked in or inspected in and 517.14 is for panelboards so I don't see how 300.3(2) would apply. In addition, section 300.3(2) is for circuit conductors, not for bonding.
     
    #2 jar546, Sep 13, 2019
  3. linnrg

    linnrg Sawhorse

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    JAR546 please reread 300.3(2) because it says "Grounding and bonding conductors" BTW I am referring to NFPA 70 2017 version. the panels are not all in the same room (or same floor)

    the contractor ran conduit between location but once inside the electrical room stopped using conduit. It is not yet complete.
     
    #3 linnrg, Sep 13, 2019
  4. jar546

    jar546 *****istrator

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    I'm not seeing what you are seeing or reading what you are reading for this section which is clearly for voltages over 1000v. Are you looking at conduit in an electrical room with panels and voltage over 100v?
     
    #4 jar546, Sep 13, 2019
  5. linnrg

    linnrg Sawhorse

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    can you explain to me where the 1000V comes into play? I do not see where the voltage is stated under 517
     
    #5 linnrg, Sep 13, 2019
  6. jar546

    jar546 *****istrator

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    It is your specific reference to 300.3(2).

    Nothing in 517.14 or anywhere in 300.3 is there a requirement for the #10 bond between panels to be run in a raceway.

    Are you referencing 300.3(B)(2) or 300.3(C)(2)?
     
    #6 jar546, Sep 13, 2019
  7. linnrg

    linnrg Sawhorse

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    300.3 (B) (2)
     
    #7 linnrg, Sep 13, 2019
  8. jar546

    jar546 *****istrator

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    No, conduit would not apply. You don't need conduit to bond the panels as required in 517.14.
    300.3(B)(2) is all about when you can run an EGC on the OUTSIDE of a raceway.
     
    #8 jar546, Sep 13, 2019
  9. linnrg

    linnrg Sawhorse

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    thanks
     
    #9 linnrg, Sep 16, 2019
    jar546 likes this.
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