Bare Cable in RGS bonding

[ungrecco]

NYC code:

When running a bare ground conductor in RGS (to protect from mechanical damage) along exposed building steel between floors (in mechanical rooms), is it necessary to bond the conduit to building steel?

Note: At each level, there is a break in the conduit where a pig tail off the cable is bonded to steel, within the floor slab.

 

[augie47]

I have no knowledge of NYC Code, but if that conductor is a grounding electrode conductor I would think 250.64(F) would require you to bond the conduit to the conductor.

 

[walton]

What Augie47 said but I think he meant 250.64 (E).

 

[augie47]

oppps

oppps

View attachment 3644

glasses, I don't need no stinkin' glasses :grin:

250.64(E) !!!!!!!!

(thanks ! )

 

[infinity]

You mean something like this disaster?

 

[nhfire77]

You mean something like this disaster?

LOL!!!! Awesome!!!!

 

[celtic]

You mean something like this disaster?

Aren't they missing some MIGB's ?

 

[Pierre C Belarge]

Is that a grounded coat hanger I see attached to the bus?

 

[quogueelectric]

Is that a grounded coat hanger I see attached to the bus?

Dont the pipes require migb's for all of the grounds??

 

[infinity]

Is that a grounded coat hanger I see attached to the bus?

Yup, it a caddy cable hanger that someone installed there to hang their knapsack on. Kept their lunch off of the floor and away from the rats. There are definitely violations in this photo.

 

[roger]

Aren't they missing some MIGB's ?

Yes they are.

Roger

 

[don_resqcapt19]

Roger,
What is the purpose of the grounding system in the photo? If it is not a grounding electrode conductor are grounding bushings required by the NEC?

 

[roger]

Don, I may very well be wrong but it appears to be a common GES however, if they are not GEC's they would not need to be bonded to the raceway.

What would you guess this to be?

Roger

 

[don_resqcapt19]

Don, I may very well be wrong but it appears to be a common GES however, if they are not GEC's they would not need to be bonded to the raceway.

What would you guess this to be?

Roger

Communications system bonding?

 

[infinity]

Roger,
What is the purpose of the grounding system in the photo? If it is not a grounding electrode conductor are grounding bushings required by the NEC?

Actually this was a 500 kcmil common grounding electrode riser for connection of multiple transformers located through out the building.

 

[roger]

Actually this was a 500 kcmil common grounding electrode riser for connection of multiple transformers located through out the building.

That's exactly what it looked like to me.

Roger