![]() ![]() Where the grounding electrode conductor or bonding jumper connected to a single or multiple concrete-encased electrode(s), as described in Section E3608.1.2, does not extend on to other types of electrodes that require a larger size of conductor, the grounding electrode conductor shall not be required to be larger than 4 AWG copper conductor. ![]() An aluminium wire of 2 AWG or a copper cladding wire is also helpful. ![]() For a 100 amp service, you can use a 4 AWG copper wire. Moreover, the wrong wire size can lead to the deterioration of your electrical system. You can make a similar calculation for 50 feet (10 addition), 150 feet (30 addition), and 200 feet (40 addition), and choose the. If you are interested in upgrading your electrical system, you must know the exact wire size. But remember that the wire material and distance can significantly determine the appropriate wire size. As I mentioned, you can use only 100 amps for 125 amps and 80 amps for 100 amps. The most common wire size for 100 amp service is usually a 2 AWG wire, especially if the distance between the utility and breaker panel is more than 50 feet. If you consult the KCMIL list above, you can see that the 350 KCMIL wire is perfect for 200 amp service 100 feet away. You can use a 125 amp panel for 100 amp service if you do not intend to use it to its full capacity. Where the grounding electrode conductor or bonding jumper connected to a single or multiple rod, pipe, or plate electrode(s) or any combination thereof, as described in Section E3608.3, does not extend on to other types of electrodes that require a larger size of conductor, the grounding electrode conductor shall not be required to be larger than 6 AWG copper or 4 AWG aluminum. Now we have to find a wire with 300A ampacity or more.The supports shall be spaced not more than 24 inches on center and shall be within 12 inches of any enclosure or termination. Where not protected, 6 AWG grounding electrode conductor shall closely follow a structural surface for physical protection.An 8 AWG grounding electrode conductor shall be protected with rigid metal conduit, intermediate metal conduit, rigid polyvinyl chloride (Type PVC) nonmetallic conduit, rigid thermosetting resin (Type RTRC) nonmetallic conduit, electrical metallic tubing or cable armor.Where protected by a ferrous metal raceway, grounding electrode conductors shall be electrically bonded to the ferrous metal raceway at both ends.Where there are no service-entrance conductors, the grounding electrode conductor size shall be determined by the equivalent size of the largest service-entrance conductor required for the load to be served.If multiple sets of service-entrance conductors connect directly to a service drop, set of overhead service conductors, set of underground service conductors, or service lateral, the equivalent size of the largest service-entrance conductor shall be determined by the largest sum of the areas of the corresponding conductors of each set. ![]()
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