Bonding receptacle boxes and junction boxes

[Jpflex]

If you have metal 4 square boxes made out with neutral to neutral, hot with hot, and then all grounds connected together as typical to feed 120v receptacles downstream.

Which are all connected with 1/2“ emt connected via metal compression connectors to feed downstream receptacles in a metal outlet box and you bond at receptacle box then is it really necessary or code required to redundantly bond every receptacle and or boxes since they are all interconnected via continuous EMT to ground?

Or will code allow only bonding/grounding at receptacle boxes or even just at one receptacle box?

Boss doesn’t want me to use emt instead of ground. And insist I install a ground with each raceway. ( I know it’s redundant again but emt can be used as a ground)

Thanks

 

[brantmacga]

250.148


You must bond


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[augie47]

agree.. if you pull and EGC 250.148 requires a bond jumper in EVERY box where there is a splice or termination.
Bonding of the receptacles would follow the rules in 250.146

 

[dgutshall]

NEC 250.148

 

[suemarkp]

You can save a little work if you use self bonding receptacles (they have a little flat brass strip on one of the mounting strap holes). These will be bonded to the box if you use an appropriate cover. This saves having to install a jumper from each receptacle ground screw to your grounding wire bundle. But, you still need to connect all the spliced circuit grounds together and put a jumper to the metal box in that bundle.

 

[Little Bill]

You can save a little work if you use self bonding receptacles (they have a little flat brass strip on one of the mounting strap holes). These will be bonded to the box if you use an appropriate cover. This saves having to install a jumper from each receptacle ground screw to your grounding wire bundle. But, you still need to connect all the spliced circuit grounds together and put a jumper to the metal box in that bundle.

You don't even need the self-grounding receptacles if you use the covers with the flat corners and you remove at least one of the plastic or cardboard screw retainer pieces at the yolk.