250.148c

[smbray]

I'm having a disagreement at my job site about whether or not the egc in the form of a wire which we pulled with the circuit conductors must be connected by a pigtail or other listed means in all of the metal junction boxes in which circuit conductors are spliced.

Everything is pulled in EMT which is, of course, being considered an egc as well.

My opinion is that 250.148 and 250.148C mean that we must connect the egc wire since it is "one or more equipment grounding conductor".

My foreman is adamant that pigtails are not required.

Even if he's right, I think it's lazy, dangerous, and all around bad practice to not pigtail to the boxes as well since set screw connectors and couplings will loosen over time, if they are all even properly tightened to begin with.

What is the general consensus of the experts here on the wording of 250.148 in regards to metal boxes with circuit conductors spliced in them?

Thanks.

 

[cpal]

From the HB

"250.148 Continuity and Attachment of Equipment Grounding Conductors to Boxes.
Where circuit conductors are spliced within a box, or terminated on equipment within or supported by a box, any equipment grounding conductor(s) associated with those circuit conductors shall be connected within the box or to the box with devices suitable for the use in accordance with 250.148(A) through (E).

Where a metal box is used in a metal raceway system and there is a wire-type equipment grounding conductor installed in the raceway, it is not required that the wire-type equipment grounding conductor be connected to the pull box, provided the box is effectively grounded by the metal raceway and the circuit conductors are not spliced or terminated to equipment in the metal box. An example of this provision would be where conductors are run unbroken through a pull box."