mbrooke
Batteries Included
- Location
- United States
- Occupation
- Technician
Why is the EGC sometimes run outside the conduit or cable assembly? Why does code allow this?
Why EGC Separate?
- Thread starter mbrooke
- Start date
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romex jockey
Senior Member
- Location
- Vermont
- Occupation
- electrician
iirc, a 6' rule exists for some wiring methods ~RJ~
- Location
- New Jersey
- Occupation
- Journeyman Electrician
I'm guessing that the EGC is actually in the cord.
ptonsparky
Tom
- Occupation
- EC - retired
I hadn’t thought of it, but that green cord could be just that, green.
Control feedback cable?
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
Could they be hydraulic motors and lines?
ptonsparky
Tom
- Occupation
- EC - retired
Looking at those and thinking about coordination and feedback. Nope, not me, I quit.
mbrooke
Batteries Included
- Location
- United States
- Occupation
- Technician
Hadn't thought of that. But what leads me to say no is the way the green is bent. and that it seems smaller than the black cord.
kwired
Electron manager
- Location
- NE Nebraska
- Occupation
- EC
What exactly are we looking at here? A pump, a metering unit, Modulating valve? something completely different?
K8MHZ
Senior Member
- Occupation
- Electrician
The fittings kind of look like air line fittings.
MD Automation
Senior Member
- Location
- Maryland
- Occupation
- Engineer
Yes, my vote would a controls cable of some type (Profibus / Interbus / CAN / etc). Or maybe a (simpler) temperature and or brake wiring?
Like Kwired asked - I wonder what it is exactly that we are looking at?
mbrooke
Batteries Included
- Location
- United States
- Occupation
- Technician
I'm guessing pumps- I'm not 100% sure to be honest. I saw the all the green wires and decided to post it here wondering if it had anything to do with bonding and grounding.
mbrooke
Batteries Included
- Location
- United States
- Occupation
- Technician
Does this mitigate the need for a SPGFCI?
electrofelon
Senior Member
- Location
- Cherry Valley NY, Seattle, WA
Yeah I've done some large PV systems where the designer was a green wire cult member. everything already had a wire EGC, but then there was this other green wire that went around and bonded equipment, cable tray etc again.
hillbilly1
Senior Member
- Location
- North Georgia mountains
- Occupation
- Owner/electrical contractor
Looks like gear valves, or actuator, tall tube probably contains a rack probably digital position sensor.
romex jockey
Senior Member
- Location
- Vermont
- Occupation
- electrician
~RJ~
Dsg319
Senior Member
- Location
- West Virginia
- Occupation
- Wv Master “lectrician”
Seen quite a few on natural gas facilities for such reason. I’ve asked questions as to why it’s there, when it already has a EGC in the cable and conduit is attached with a bonding jumper to the cable tray, which in return is connected to the station grounding grid.
I guess to know, that you know, that you know it is properly connected to an EGC lol.
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
I believe those would be bonding jumpers and not equipment grounding conductor.
- Location
- Bremerton, Washington
- Occupation
- Master Electrician
That is not an EGG, its a green data cable, device net, ethernet or similar. Those are valve actuators like Rorork, or Limitorque, maybe for a rising stem type valve, with a lead screw. Since there are so many valves, they are networked using the green cable. Discrete wiring to each valve would be a lot of wires!
What type facility is this? My guess is a treatment plant.
What type facility is this? My guess is a treatment plant.
electrofelon
Senior Member
- Location
- Cherry Valley NY, Seattle, WA
I've never quite understood the need for term "equipment bonding jumper". Why can't it just be an EGC?
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