This article was posted 02/24/2006 and is most likely outdated.

Grounding vs Bonding Online Training
 

 
Grounding vs Bonding: 250.68 Grounding Electrode Conductor Termination

February 24, 2006  

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PART III. GROUNDING ELECTRODE SYSTEM AND GROUNDING ELECTRODE CONDUCTOR  Hi Res - Cable/DSL [24352Kb]
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250.68 Grounding Electrode Conductor Termination.

(A) Attachment Fitting. The grounding electrode attachment fitting must be accessible.

Exception 1: The grounding electrode attachment fitting to an encased or buried grounding electrode isn’t required to be accessible. Figure 250–119

Author’s Comment: When the grounding electrode attachment fitting is encased in concrete or buried, it must be listed and identified for this purpose [250.70].
Exception 2: An exothermic or irreversible compression connection to fireproofed structural metal isn’t required to be accessible.

(B) Effective Ground-Fault Current Path. To ensure a permanent and effective grounding path for an underground metal water pipe electrode, a bonding jumper must be installed around insulated joints and equipment likely to be disconnected for repairs or replacement. Figure 250–120

Author’s Comment: Continuity of the conductive bonding path for metal water piping as required by 250.104(A) cannot rely on water meters, filtering devices, or similar equipment [250.53(D)(1)].



Figure 250–119
(Click on image to enlarge)


Figure 250–120
(Click on image to enlarge)

     

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Comments

  • My E-mail address changed to rosejc@iowatelecom.net

    Jim Rose

    • Reply from: Tara Moffitt   
    Any time your e-mail address changes you can update that by clicking on newsletters and then change e-mail address. OR Go directly there with this link: http://www.mikeholt.com/newslettersRegister.php?action=modify

    I'll go ahead and take care of this for you, but just wanted anyone else that may encounter this issue to know how to do this.

    Thank you.
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