What size wire should I use to run 100A 70 feet through an attic to a subpanel also I wish to run underground another 40
What is the correct wire size for a 100 amp sub panel 100 ft in length form 200 amp main panel? - Quora
![100 amp breaker, 8 gauge multistrand copper conductors - Electrical Inspections - InterNACHI®️ Forum 100 amp breaker, 8 gauge multistrand copper conductors - Electrical Inspections - InterNACHI®️ Forum](https://global.discourse-cdn.com/internachi/optimized/3X/0/9/0978fc68b3befee62fcfdcb3319e2781c0818682_2_375x500.jpeg)
100 amp breaker, 8 gauge multistrand copper conductors - Electrical Inspections - InterNACHI®️ Forum
![Wire size for 100 amp basement sub-panel | DIY Home Improvement Forum | Home electrical wiring, House wiring, Electrical projects Wire size for 100 amp basement sub-panel | DIY Home Improvement Forum | Home electrical wiring, House wiring, Electrical projects](https://i.pinimg.com/736x/85/9b/68/859b6836896a15a4c5067a68c4dbaf2c.jpg)