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nuttiness    
n. 疯;潇洒;迷恋

疯;潇洒;迷恋


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  • Ground rod installation for shed building required or not?
    3)drive ground rod in ground 8 feet down til just above grade 4) don't bond mbj at subpanel It's already bonded at main panel 5) run and connect ground from sub panel to ground rod at shed 6) terminate 4 conductors from main panel to subpanel (2hot,neutral and egc ) 7) distance is roughly 100 feet away from house to shed Let me know what
  • Connecting two ground rods - Electrician Talk
    An inspector asked for a second ground rod, I said I have measured the impedance and it was less than 25 Ohm, but he insisted on it, so there goes the second rod Trouble is my ground wire (#6 solid) now is not going to be continuous, as it goes through the first rod and gets bonded to the
  • Ground Rod Installation | Information by Electrical Professionals for . . .
    The attached image is from the NEC handbook, showing the ground rod fully buried In electrical rooms of buildings in NYC, you always see a few inches of the ground rod above the slab, as well as the clamp where the GEC connects, before penetrating the slab How many inches of the ground rod
  • rebar ground - Electrician Talk
    Tie-wiring a ground rod stubbed up out of the concrete to that rebar will just extend the ufer, and complies with (1) You can bend or cut off the rod if you want, it's not being used as a ground rod, it's being used as rod material for the ufer
  • Ground rod - angle of installation | Information by Electrical . . .
    I found out recently that I failed a residential service upgrade for installing the ground rods "at too severe an angle" I've been doing this for over 45 years and I've never failed on a service upgrade no less for a ground rod installation I got this info from my customer and I haven't
  • Grounding at the meter instead of the main panel? - Electrician Talk
    The NEC allows for any grounding electrode to be connected to the grounding electrode system via the meter socket enclosure In the past we would always install the one or two ground rods directly to the meter socket enclosure That kept one more thing from having to penetrate the building envelope and one less thing inside the panel
  • Ground rod requirements | Information by Electrical Professionals for . . .
    If the ground rods are your only electrode at each building then you will need 2 unless you can prove the single rod is 25 ohms or less (never done) For the grounding electrode conductor it only has to be continuous and non broken to the first electrode You can the use a separate jumper to the next one using separate ground clamps So, the inspector is correct on the rods but wrong on
  • Ground rod access in concrete - Electrician Talk
    Alright so I’m doing my first commercial service and I’m having trouble figuring out how to install a ground rod access so after concrete, there’s an access hole Sort of like a plumbers cleanout cover or sewer cover is what I’m picturing in my head My supply house only carries those plastic
  • Grounding in Sandy Soil | Information by Electrical Professionals for . . .
    I recently did an install in coastal NC The place is nothing but sand, and although the install was IAW Code and the inspector and power company were satisfied, I have some concerns that my normal inland installs don't pose How good is the ground actually going to be? Is there a way to limit corrosion of the Ground Rod and Ground Conductor?
  • How many ground rods needed? - Electrician Talk
    A ground rod is a reference point for your system neutral Fault currents are trying to get back to the source and usually take the path of least resistance; the neutral conductor





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