Ampacity:
The term ampacity comes from ampere capacity. This means capacity of amperes of a wire which it can carry. Proper definition we can make is the ability of any wire to carry out the current in amperes is called amperage capacity of that wire.
The amperage capacity of wires changes with size and voltage and also material of wires. Copper wires have more ampere capacities than aluminum or any other metal. Current carrying capacity of wires term are mostly useful when designing electrical load for a buidling, industry, commercial.
The manufacturing of cable industies also involves in cable current carrying capacity. they are first industry to provide information about wires specification regarding voltages and current.
Some details are as below:
Wire Size (AWG) Copper conductor (A) Aluminum Conductor (A)
14 20 ….
12 25 20
10 35 30
8 50 40
6 65 50
4 85 65
2 115 90
1 130 100
1/0 150 120
2/0 175 135
3/0 200 155
4/0 230 180
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