LOL... Yeah, I have a good friend that is a master electrician and he pretty consistently points out my improper terminology. I try to understand as best I can and try to follow what code I know (and try to doubt myself enough to ask my buddy when I think I don't know.) He can go on for 10 minutes on different kinds of grounding and I pretty much zone out 12 seconds in. I eventually just get to "just tell me where to attach the wire."
Yes I too have a gift of creating quick, efficient and deadly boredom , my wife finds it annoying.
Thank you for that. They did that when they built my house (2011) and I had never seen the 2 grounds before. I had no idea what was going on there.
Had a funny conversation with a really sharp inspector, when this rule changed. you have the option of testing the effectiveness of a single rod, in the presence of an inspector, if you wish to avoid installing two. Since I think too much, I asked what he needed to see at the test. He said he wanted the value of the rod measured against a "counterpoise" installed 25' away. A counterpoise, for testing purposes, is three rods, driven in a triangular formation and interconnected. I then noted that it would take a few hundred in supplies, time, inspection fees and three wasted rods to prove that one additional one is not required. "Yea, we haven't had any requests to observe that test yet"
Semi related anecdote: In the early 2000s the place I worked had a very large data center. There was a section in the back with about 50 servers that suddenly started having issues. They were replacing power supplies at a rate of about 1 every 2 weeks on a couple of rows of servers. My aforementioned electrician friend started digging into it. It turns out that there was a water cooled mainframe we took out 2 years prior that was the ground for about 1/3 of the room. Oops
Tricky stuff. I was on a crew doing this work and using huge metal clad, multi-conductor cables that were physically wrestled under the raised floor and under 8-12" of existing ,abandoned cable systems. These cables were 2-3" thick and sometimes needed twenty guys at a time to maneuver. Prior to going online, we bonded the supply end of each cable, for obvious safety reasons. On start-up we had total failure. The bonded shield was compromising the ground value of the system, and creating a difference of potential between the supply and the mainframe. Creating a condition where the computer was unable to "Think". Cheap fix, but tough to diagnose if you don't appreciate how sensitive the system is.
regarding the OP. Had a case where lighting struck somewhere on the street in front of my buddy's house. Tight neighborhood, and most homes had little to no damage. One house got pummeled. everything that even looked like it had a digital circuit inside was toast. Appliances, TV, audio, alarm clocks, everything. Buddy calls me and asks WTH? I tell him I would suspect a ground failure. The home's system was OK, but the city had replaced the 1" incoming water line. "upgraded to plastic" eliminated the grounding system entirely.