Sunking Thanks for the Sticky Grounding Tutorial - Fills in a lot of gaps along with the video you posted on this thread. (But Note that the pic links on the Grounding Tutorial are no longer working. So I cannot see the diagrams there.)
Trying to properly ground my roof top array. After watching the posted videos from the other thread. Looking for the best option ...
Example #1: I do not think it should be done like this ... but I am not sure?
Seperate_Ground.JPG
Example #2: So, Would this be more Acceptable? Only problem ... seems this might let lightening inside the structure as the array rack grounding conductor is now entering into the house and RE sub-panel (bonded with other EGC's grounds and on to the main load panel ground / neutral bond).
Single_Ground.JPG
Example #3: Or could I do this with 2 Ground Electrodes Bonded together? If yes, what size wire for the bond between GE's? Stranded or Solid? Insulated (green) or bare? Do you bury the conductor between the 2 GE's?
Seperate_Ground_Bonded.JPG
Which, if any, or all of these would work? Which would be best? Please sight any that would work AND the possible best scenario as some of these are easier to achieve than others ... AND/OR an alternate if none would work.
Right now I have a bare #8 coming from the Array rack (the array/panels are bonded to the rack with bonding clips) along with #10 Solar Cable for the 3S3P panels in conduit to the combiner box and three 15amp DC breakers . The Ground comes into the combiner box to the grounding bus bar and out thru conduit with #8 green insulated stranded THHN along with a #8 Red and #8 Black THHN for the DC power from the array. I Can change any of this if necessary.
Thanks
Mike
Trying to properly ground my roof top array. After watching the posted videos from the other thread. Looking for the best option ...
Example #1: I do not think it should be done like this ... but I am not sure?
Seperate_Ground.JPG
Example #2: So, Would this be more Acceptable? Only problem ... seems this might let lightening inside the structure as the array rack grounding conductor is now entering into the house and RE sub-panel (bonded with other EGC's grounds and on to the main load panel ground / neutral bond).
Single_Ground.JPG
Example #3: Or could I do this with 2 Ground Electrodes Bonded together? If yes, what size wire for the bond between GE's? Stranded or Solid? Insulated (green) or bare? Do you bury the conductor between the 2 GE's?
Seperate_Ground_Bonded.JPG
Which, if any, or all of these would work? Which would be best? Please sight any that would work AND the possible best scenario as some of these are easier to achieve than others ... AND/OR an alternate if none would work.
Right now I have a bare #8 coming from the Array rack (the array/panels are bonded to the rack with bonding clips) along with #10 Solar Cable for the 3S3P panels in conduit to the combiner box and three 15amp DC breakers . The Ground comes into the combiner box to the grounding bus bar and out thru conduit with #8 green insulated stranded THHN along with a #8 Red and #8 Black THHN for the DC power from the array. I Can change any of this if necessary.
Thanks
Mike
Comment