The recommended gauge for 100 amp wire in a residential electrical installation is typically 3 AWG copper or 1 AWG aluminum.
The recommended wire size for a 100 amp electrical circuit is typically 3 AWG copper or 1/0 AWG aluminum.
100amp
For a 100-amp service, you typically use a minimum of 3 AWG copper wire or 1 AWG aluminum wire. The corresponding EMT (Electrical Metallic Tubing) size is usually 2 inches in diameter to accommodate the conductors and allow for proper installation. Always check local codes and regulations, as they may have specific requirements or recommendations.
A two pole breaker protects both L1 and L2 legs. An over current on either leg will trip the breaker.
The formula you are looking for is volts x amps divided by 1000.
Service entrance wire should be AWG #3 copper.
No, it is not recommended to use a 200A disconnect to feed a 100A main panel. The disconnect should always be rated equal to or higher than the main panel it is feeding to ensure proper protection and capacity handling. It is important to match the amperage ratings to avoid potential overload and safety hazards.
100amp on a RCD
Recheck the wiring around the fuel pump, or check your polarities on the battery. Something is shorting out!
You can divide a three phase service into (3) single phase circuits providing you have a 4th neutral wire.
Usually you just have to replace the electric panel and maybe the electric meter and entrance cable. It would be unusual, but the power company may want to replace the cable from the local transformer to your house.
Wow, never heard of it. Usually 100amp, usually it does not matter what the house has, because it is grandfathered in. But if you ever want to add anything to the service, you might be forced by codes to install a new 100 or 150 amp service, or you might not be allowed to do anything. Call the local power company and ask them if they will upgrade the service to the house for free. Some will. You will need an electrician to put in a new service panel. Could cost a thousand bucks or more depending on the current wiring. A home inspection would also be recommended before buying such an older house.