What Size Aluminum Wire Do You Use For 100 Amp Service

What Size Aluminum Wire Do You Use For 100 Amp Service. Generally speaking, you should be able to use 1 awg aluminum or 3 awg copper for 100 ampere circuits. The 2014 version allowed you to size the conductors to 83% of the service rating, which usually worked out to about the same as the old table.

For a 100 amp service what wire size do I use?
For a 100 amp service what wire size do I use? from www.justanswer.com

The sub panel will be app. Spending the extra for copper is a waste, and you can't get away with 2awg for this because you'd exceed the 75°c termination limit that is normal for breakers and loadcenters if you did. We’ll discuss these issues below.

I Would Use 1Awg Al Wires Here;

The 2014 version of the code omitted this table, because folks were simply using the values, and not applying correction and/or adjustment factors properly. Torque all lugs to spec Generally speaking, you should be able to use 1 awg aluminum or 3 awg copper for 100 ampere circuits.

Wiring 100 Amp Service For A Garage Or Room Addition Does Require An Electric Permit And Professional Installation By A Qualified Electrician Following.

For 150 amp, the right wire size is 3/0. Make sure to limit your voltage drop to 3% regardless of distance. A 100 amp sub panel wiring size requirement is #4 for copper wires and #2 for aluminum wires.

20 Amp Breakers Tend To Need The 12 Gauge Copper Wire For Grounding.

This limitation is a consequence of nec 110.14(c)(1), by the way. Now, you may question what you should use for your wiring installation and what are the advantages and disadvantages of one wire type from another. The table listed 1/0 al to be used for 125 ampere services.

This Can Be Completed To Prove To The Local Inspection Authority That The 4/0 Conductor Size Does Not Exceed 185 Amps Of Draw.

The sub panel will be app. This is why it’s recommended to use a 175a and a bigger 125 amp wire size of 2/0. The code states that the size of the wire used must be 250 amps unless a demand load calculation.

For Example, 175A X 0.8 Is 140A, While A 150A Breaker Only Supports A Total Of 120A.

What size aluminum wire do i need for 100 amp service? What about the temperature rating? In general , ground conductor for a 100 amp circuit is required to be at least # 8 awg copper.