![Need to identify size of this service wire. I'm getting prepped to upgrade service in my 100 year old house, and the 3rd wire down is the main service. I wrote the Need to identify size of this service wire. I'm getting prepped to upgrade service in my 100 year old house, and the 3rd wire down is the main service. I wrote the](https://i.redd.it/ncjpv5rgzj2c1.jpg)
Need to identify size of this service wire. I'm getting prepped to upgrade service in my 100 year old house, and the 3rd wire down is the main service. I wrote the
![Gauge Gauge 200 Amps Service entrance 150 Amps Service entrance and feeder wire 100 Amps Servi… | Electrical wiring, Home electrical wiring, Basic electrical wiring Gauge Gauge 200 Amps Service entrance 150 Amps Service entrance and feeder wire 100 Amps Servi… | Electrical wiring, Home electrical wiring, Basic electrical wiring](https://i.pinimg.com/originals/fc/9b/d0/fc9bd047ac4d68105c458f27616d0dff.jpg)
Gauge Gauge 200 Amps Service entrance 150 Amps Service entrance and feeder wire 100 Amps Servi… | Electrical wiring, Home electrical wiring, Basic electrical wiring
![electrical - What wire gauge do I need for a 100 Amp subpanel at the end of a 60' wire run? - Home Improvement Stack Exchange electrical - What wire gauge do I need for a 100 Amp subpanel at the end of a 60' wire run? - Home Improvement Stack Exchange](https://i.stack.imgur.com/V56uL.png)