R0bG
Member
- Location
- Miami, Florida, USA
Hello,
I have a question regarding EGC sizing on a project that I'm currently working on. There is some verbiage in the hand book that is confusing to me that I was hoping that one of you guys could help clarify it for me.
Here is the situation in the field.
- A 2000A breaker feeds a load that sits about 150' away. The 2000A breaker is set to trip at 1800A.
- Between the breaker and the load there are (5) 3/c 500kcmil XHHW-2 cables that are routed on a cable tray all the way to the load.
- The 3/c 500kcmil XHHW-2 cables have a #2 ground built into the cable.
My understanding is that the ECG should be sized at 250kcmil based on T250.122.
I'm pretty sure that the EGC should be 250kcmil but just wanted to double check with you guys just in case there is an exception somewhere that I may not be aware of.
Thanks!
I have a question regarding EGC sizing on a project that I'm currently working on. There is some verbiage in the hand book that is confusing to me that I was hoping that one of you guys could help clarify it for me.
Here is the situation in the field.
- A 2000A breaker feeds a load that sits about 150' away. The 2000A breaker is set to trip at 1800A.
- Between the breaker and the load there are (5) 3/c 500kcmil XHHW-2 cables that are routed on a cable tray all the way to the load.
- The 3/c 500kcmil XHHW-2 cables have a #2 ground built into the cable.
My understanding is that the ECG should be sized at 250kcmil based on T250.122.
I'm pretty sure that the EGC should be 250kcmil but just wanted to double check with you guys just in case there is an exception somewhere that I may not be aware of.
Thanks!