I shouldn't have used an absolute. That's my mistake.
One last question. Can I then not connect the ground in the main panel and instead connect that wire to my new ground rods and my new sub panel ground bar?
That's what I was looking for. I am not worried about being compliant necessarily but more so functional and safely.
OK, why is there a need for 2 rods on the new or is one ok?
you can do one if you can prove 25ohms or less resistance to earth
Echo...echo...echo...
Lightning doesn't care. Most houses are not adequately grounded/protected to survive a direct or even indirect lightning strike. The main reason I can see for having the extra ground rods is to facilitate the shortest path to ground in the case of an actual electrical fault. Up here in Canada the only time we put in extra grounding rods on a detached structure is when its a barn housing live stock. Mostly because of the amount of moisture that can be present in those environments.
ummm ground rods have absolutely nothing to do with electrical faults and a breaker's ability to clear them. the fault current doesnt even go to the rods. many people think that fault current goes to earth. it doesnt!
I'm not doubting the point of a neutral and how it interacts with a breaker tripping. I'm talking about ground faults, you know when stray voltage is going down to earth. The grounding system will takes the stray voltage and the current that goes with it safely to earth. That's why we install earth rods, ground wires and bonding. Pretty simple concept. That stray voltage could be lightning, a surge, a dead short to ground, an appliance or motor with weak insulation that is finding a path through its casing to ground etc.
this is wrong. electricity DOESNT go to earth. it goes back to the source. the dead short is only a short because of the neutral to ground bond. it doesnt go to earth.
In a perfect world electricity does go back to source. I dont need to even argue this point anymore. I set up zero sequence ground fault relays all the time, I know how they work and they definitely are not looking at the neutral.
Certainly your reading comprehension is not the best. We could have a discussion on how grounding systems and breakers interact, but that should be a separate post. So just to repeat myself, The grounding system will take the stray voltage and the current that goes with it safely to earth. That's why we install earth rods, ground wires and bonding. Pretty simple concept. That stray voltage could be lightning, a surge, a dead short to ground, an appliance or motor with weak insulation that is finding a path through its casing to ground etc. The idea is for a the ground fault to take the path of the lowest impedance directly to the ground, and yes, that would be the earth electrodes, that is one of the reasons why they are there. Anyway to each their own, have a good weekend.
Your understanding of equipment grounding system vs. earth grounding system, is incorrect. The equipment grounding system is for clearing ground faults, it provides the path of least resistance back to the source. Earth grounding has high resistance and is a poor ground for clearing current faults. Earth ground rods are for providing some protection from lighting strikes. What Wylie stated is 100% correct. Read NEC 250.4 (A)(1) & (5).Certainly your reading comprehension is not the best. We could have a discussion on how grounding systems and breakers interact, but that should be a separate post. So just to repeat myself, The grounding system will take the stray voltage and the current that goes with it safely to earth. That's why we install earth rods, ground wires and bonding. Pretty simple concept. That stray voltage could be lightning, a surge, a dead short to ground, an appliance or motor with weak insulation that is finding a path through its casing to ground etc. The idea is for a the ground fault to take the path of the lowest impedance directly to the ground, and yes, that would be the earth electrodes, that is one of the reasons why they are there. Anyway to each their own, have a good weekend.
What is a Ground Fault? - Littelfuse
www.littelfuse.com
Electricity is not trying to return to ground, it is trying to return to it's source which is the transformer, in it's quest to return to it's source, it takes all available paths, the earth is one of those paths. If you want to kill someone just rely on a ground rod to clear a fault, there will not be enough resistance to trip a breaker or clear a fuse.Certainly your reading comprehension is not the best. We could have a discussion on how grounding systems and breakers interact, but that should be a separate post. So just to repeat myself, The grounding system will take the stray voltage and the current that goes with it safely to earth. That's why we install earth rods, ground wires and bonding. Pretty simple concept. That stray voltage could be lightning, a surge, a dead short to ground, an appliance or motor with weak insulation that is finding a path through its casing to ground etc. The idea is for a the ground fault to take the path of the lowest impedance directly to the ground, and yes, that would be the earth electrodes, that is one of the reasons why they are there. Anyway to each their own, have a good weekend.
What is a Ground Fault? - Littelfuse
stray voltage from what? a ground fault? no, that goes back on grounded metal pathways such as the low impedance pathway established by the EGC or metallic conduit and goes directly to the neutral bond, which then creates a dead short and allows the breaker to clear the fault by opening the circuit.Certainly your reading comprehension is not the best. We could have a discussion on how grounding systems and breakers interact, but that should be a separate post. So just to repeat myself, The grounding system will take the stray voltage and the current that goes with it safely to earth. That's why we install earth rods, ground wires and bonding. Pretty simple concept. That stray voltage could be lightning, a surge, a dead short to ground, an appliance or motor with weak insulation that is finding a path through its casing to ground etc. The idea is for a the ground fault to take the path of the lowest impedance directly to the ground, and yes, that would be the earth electrodes, that is one of the reasons why they are there. Anyway to each their own, have a good weekend.
What is a Ground Fault? - Littelfuse
The 30s are for my well pump (240). Also there is a Bushing.
You need to replace the 30's with a dual.pole.
Sorry I was thinking about the locknut.
I'm the one that points out missing bushings. Probably because it makes me feel better since I forget to put the damned things on once in a while. I love getting everything made up and find a bushing sitting on top of the panel or on the floor under it.
The two 2" conduits need bushings on the end. The one pipe that has a bushing doesn't need it, but it's ok to have. The two single pole 30's need to be replaced with a two pole 30, a handle tie doesn't give common trip. And the riser for the service entrance conductors is pulling apart. You might be able to pull it up and re-glue it.
Other than lack of a bushing, yes.
I just wanted to beat you do it
I plead the 5th so as not to incriminate myself. There are also bushings made that are two pieces.
www.zoro.com
The well company that put the well in 15 years ago did the 30 breakers and the guy the did the initial wiring of my house 15 years ago left the bushing off and obviously didn't glue the conduit.
So it's been wrong for 15 years. You really should swap it. As is, one line could trip and still be feeding power making it unsafe or damaging the pump. A dual pole 30 is like 12ish bucks
I wouldn't worry about them either, unless it's getting inspected. If there is an inspection in the near future, a hacksaw might come in handy, especially on the bottom 2". The new wires could be taken off easy enough. It's not like the wires are, or ever will be, bent tight over the ends of the adapters.
