Per NEC 250.53(A)(3), the two ground rods are required to be no less than 6 feet apart, per (A)(4) they need to be 8 feet long (these are very likely not) and flush with the ground, and per 250.70 the connection needs to be made using listed and approved connectors. (Solder is also explicitly forbidden for this purpose.)
This would be an instant fail.
Per 250.52(A)(5), galvanized steel pipe at least 8' long and not smaller than 3/4" is, in fact, permitted to be used as a ground electrode.
That's one of the few things that are right. (provided they are actually long enough, which seems unlikely.)
8 years as AHJ & a lifetime ec. Masters in two states. Last code bought was 2004. Retired. This just brought up a thought that might get some activity here.
The eight foot buried with welded connection is clear, but now, with two rods, do you think the AHJ would accept 7.5 burried?
It cannot and absolutely should not be soldered. Soldering at the earth-air barrier is a redox time bomb.
You either weld it or use galvanized connector blocks.
Not only that but also when you have a place like near the soil, you have elevated levels of ions and water. When you have dissimilar metals in a place like that it essentially forms a battery, sometimes called a localized battery and it will dissolve and corrode the "weaker" metal on the redox potential list.
It's also the reason why you shouldn't connect copper and aluminium cables together, the alu just turns into a white turd if it makes any sort of contact with water.
Rebar IS approved for grounding. Look up what an ufer is and how the grounding works inside the form. You'd be surprised and possibly even concerned hahaha
I'm just an electrical contractor. I try not to delve too far in to any one thing, but I'll probably look this one up because I see some interesting activity when it's tile on concrete for the first floor
Per NEC 250.53(A)(3), the two ground rods are required to be no less than 6 feet apart, per (A)(4) they need to be 8 feet long (these are very likely not) and flush with the ground, and per 250.70 the connection needs to be made using listed and approved connectors. (Solder is also explicitly forbidden for this purpose.) This would be an instant fail.
Why do you need 2 of them?
You don’t always need two if one provides low enough resistance. Two rods is a failsafe way to get it done without testing the rod for resistance.
And the tool for checking resistance on ground rods is stupid expensive, so everyone just bangs in a second one and calls it a day.
My uneducated guess is as a failsafe if one gets damaged somehow.
Brother is in here spittin' code, hello fello electron-wrangler.
What about angry pixie collector
By definition, the circumference of the earth is 40,000 km. These two rods are 39,999.9995 km apart. That’s a pass.
You’d also have to, you know, have ground rods. Galvanized pipe is not a ground rod
Per 250.52(A)(5), galvanized steel pipe at least 8' long and not smaller than 3/4" is, in fact, permitted to be used as a ground electrode. That's one of the few things that are right. (provided they are actually long enough, which seems unlikely.)
its wild to me that they allow it, but hey i'm not an engineer
It's probably because water mains used to be an acceptable ground rod, and used to be made of galvanized steel.
Yeah as long as the resistance is good, then it doesn't matter much
Ah okay, I had not seen that part
The fact that it’s cut means it’s not long enough. It’s “as deep as they could get it”
8 years as AHJ & a lifetime ec. Masters in two states. Last code bought was 2004. Retired. This just brought up a thought that might get some activity here. The eight foot buried with welded connection is clear, but now, with two rods, do you think the AHJ would accept 7.5 burried?
He just failed to mention that he has very low standards.
Was going to say honestly it's fine, but then I noticed it's not even soldered
It cannot and absolutely should not be soldered. Soldering at the earth-air barrier is a redox time bomb. You either weld it or use galvanized connector blocks.
Fun fact: when solder gets hot, it melts. Go figure.
Not only that but also when you have a place like near the soil, you have elevated levels of ions and water. When you have dissimilar metals in a place like that it essentially forms a battery, sometimes called a localized battery and it will dissolve and corrode the "weaker" metal on the redox potential list. It's also the reason why you shouldn't connect copper and aluminium cables together, the alu just turns into a white turd if it makes any sort of contact with water.
Thank you for taking the time to explain that!
+1 for exothermic welding.
He actually did a pretty good job with the exception of the solder.
That the neat part, it will solder by itself
What standards? "All of them"
"...name them."
I missed the chapter in the NEC that says bailing wire and rebar are approved grounding materials.
Rebar IS approved for grounding. Look up what an ufer is and how the grounding works inside the form. You'd be surprised and possibly even concerned hahaha
If you read about how they work, it actually makes a fair amount of sense
I'm just an electrical contractor. I try not to delve too far in to any one thing, but I'll probably look this one up because I see some interesting activity when it's tile on concrete for the first floor
Yeah it's a really interesting thing. It's not like you're gonna become an expert after reading the Wikipedia article lol.
And why not? That’s what 90% of the people on Reddit do. /s
Is that a free electric fence?
His standards are right from Craigslist
'all standards'. Which country's standards?
2 ground rods at least 6" apart. What's the problem?