This isn't related to a specific project, just some questions I have...
Where two elecrodes are required, should one wire be brought from the panel to the first electrode and looped to the second electrode (without being cut) Or should two seperate runs be made?
Is there anything saying that the above cannot be taken a step further and be a continuous loop ( from ground bar in panel to electrode #1 uncut to electrode #2 and back to the ground bar in the panel ) ? Basically this would be that if the wire was broke in any point, you would still have a connection to both rods.
Second question ..
In the case of a duplex where it is fed by a single over head to a double meter to two seperate panels, do they share the same ground electrodes or would four be required? ETA I believe 250.58 says to use the same electrodes, looking to confirm this.
This question came up because I am curious about the new bonding terminal that needs to be in place on the GEC for catv,sat,phone providers to connect their grounds too. In some cases especially with phone, they only put one box on the house with one ground. for both dwellings. If both units have copper water pipe and share the same water main both units would be bonded together at that point, but what if it is plastic, your neutral and possible a piece of RG6 shield would be the only thing bonding both units.