- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
JJWalecka said:
You won't see a mushroom head if you use a rotary hammer.
What the....???
- Thread starter 480sparky
- Start date
- Status
You won't see a mushroom head if you use a rotary hammer.
JJWalecka
Senior Member
- Location
- New England
Must be real hard soil up here... most of rods I have driven, with a ground rod adapter and rotary drill, don't look as clean as that pic. 
JJ
JJ
JJWalecka
Senior Member
- Location
- New England
"ERITECH" Ground Rod Clamps from Erico type CP58 and CP34 clamps are designed to withstand a minimum torque of 300 in-lbs. The HDC Series is designed to withstand a minimum torque of 450 in-lbs.
JJ
JJ
JJWalecka said:Must be real hard soil up here... most of rods I have driven, with a ground rod adapter and rotary drill, don't look as clean as that pic.
Dennis Alwon said:
Hilti TE905.:smile:
Ground rod driving kit:
95% of the rod is driven and the tip is never touched. The tip is touched only when driving the last few inches to get it below grade.
walkerj
Senior Member
- Location
- Baton Rouge
I guess you guys don't want me to tell you how we drive ground rods here?
walkerj
Senior Member
- Location
- Baton Rouge
No gloves.
That is how EVERYONE in a 100 mile radius does it.
How would they know how you drove it? Do they watch you drive it? What does it matter?:-?
Just curious, that's all:wink:
That is how EVERYONE in a 100 mile radius does it.
How would they know how you drove it? Do they watch you drive it? What does it matter?:-?
Just curious, that's all:wink:
walkerj said:
They state that driving with water doesn't give as good a contact with the soil and one mechanically driven.
And yes, I've been caught driving with water, and got red-tagged even before I called for inspection. AHJ just happened to be in the neighborhood.
My feeling as, after a couple good hard rains, and especially after a long winter freeze, the 'connection' is just as good.Hence the Hilti.
Besides, the Hilti is a lot faster, easier, and makes you look totally professional when you drive that rod into rocky clay soil in about 30 seconds flat.:wink:
walkerj
Senior Member
- Location
- Baton Rouge
Water, huh?
Ground rods are outside=rain.
We don't have rocky clay soil here, just river silt
Ground rods are outside=rain.
We don't have rocky clay soil here, just river silt
jimman
Member
- Location
- North Carolina
How do you get 8' in contact with earth? It appears to be about a foot above grade.
frizbeedog
Senior Member
- Location
- Oregon
480sparky said:(Either I'm stronger than I thought I was, or I had a defective bug nut)
That brand of clamp (I call 'em acorns) is crap.
They are cast, not forged.
ItsHot
Senior Member
- Location
- A little piece of heaven!
acorns only?
acorns only?
I have worked some areas that local code only permitted the use of acorn clamps. Even know the two piece clamps are rated for direct burial.
acorns only?
I have worked some areas that local code only permitted the use of acorn clamps. Even know the two piece clamps are rated for direct burial.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
Well, an acorn clamp is two pieces: the loop and the bolt.ItsHot said:I have worked some areas that local code only permitted the use of acorn clamps. Even know the two piece clamps are rated for direct burial.
- Location
- Massachusetts
JJWalecka said:Must be real hard soil up here... most of rods I have driven, with a ground rod adapter and rotary drill, don't look as clean as that pic.
Dennis Alwon said:
480sparky said:
I agree with JJ, you guys need to come up here to New England where potato sized rocks make up more of the under ground world then the dirt.
I will admit I have never used the fancy ground rod 'grabber' that Ken has but I have used all kinds of demo hammers, even jack hammers to drive rods.
JJWalecka
Senior Member
- Location
- New England
480sparky the right tool for every job! I never used the ground rod kit before, only the ground rod adapter. It must be nice.
Jimman ?How do you get 8' in contact with earth? It appears to be about a foot above grade.? Must be a ten foot rod.
JJ
Jimman ?How do you get 8' in contact with earth? It appears to be about a foot above grade.? Must be a ten foot rod.
JJ
JJWalecka said:.....Jimman “How do you get 8' in contact with earth? It appears to be about a foot above grade.” Must be a ten foot rod.
JJ
No, I drove the rod into a trench. The grass you see in the pix is higher than the top of the rod.
JJWalecka said:
'Tis nice.... I don't need to get up on a ladder to start driving. It grabs the rod anywhere I want to. Start 3' up, drive 2' down... slide the driver up another 2 foot & repeat. Once I get down to the last foot, the end adapter gets used to drive the rod below grade.
Hilti has a PDF file somewhere on their webstie about these adapters, but I can't find it.
Last edited:
- Status