Amperage Stranded Wire Ampacity Chart

Extension cords light duty 13 amps. Light fixtures lamps lighting circuits. Usually a general purpose house circuit is designed for 20.

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Wire ampacity tables ampacities of insulated conductors from nec table 310 16 not more than three conductors in raceway or cable or earth directly buried based on ambient temperature of 30 c 86 f size.

Amperage stranded wire ampacity chart. Use the stayonline wire ampacity chart to look up the rated amperage of different sizes and types of cords. Current is measured in amperes or amps. Low voltage lighting and lamp cords.

Table 310 15 b 16 formerly table 310 16 allowable ampacities of insulated copper conductors rated up to and including 2000 volts 60 c through 90 c 140 f through 194 f not more than three current carrying conductors in raceway cable or earth directly buried based on ambient temperature of 30 c 86 f. Current is measured in amperes or amps. The following chart is a guideline of ampacity or copper wire current carrying capacity following the handbook of electronic tables and formulas for american wire gauge.

Radio electronics computer and communications 7th ed at 20 c de rate with 0 00393 per c wire carrying current capacity sitting in the insulation and conduit will not be at 20 c you will want to derate to at least the temperature rating of your insulation. This amp chart highlights the types of cords gauge size range number of cord coductors ampacity of current carrying conductors and much more. Usually a general purpose house circuit is designed for 20 amps.

Wire use rated ampacity wire gauge. Aluminum conductors copper clad conductors. Kitchen bathroom and outdoor receptacles outlets.

You must use the correct size wire for the amperage requirement of the circuit to prevent the wire from over heating. The number and type of electrical devices connected to a circuit determine the amperage requirement of the circuit. As you might guess the rated ampacities are just a rule of thumb.

The number and type of electrical devices connected to a circuit determine the ampacity requirement of the conductor. The allowable values in the ampacity table are based on temperature alone and do not take voltage drop into consideration. Load carrying capacities or ampacities in part from reference data for engineers.

Amp chart lead wire current carrying capacity ampacity awg size insulated conductor temperature rating awg size at 80 c at 90 c at 105 c at 125 c at 150 c at 200 c 40 0 33 0 49 0 55 0 60 0 71 0 78 40 38 0 47 0 68 0 77. You must use the correct size wire for the current load requirement of the circuit to prevent the wire from overheating. 120 240 volt 3 wire single phase service entrance conductors service.

Unless specifically permitted in section 240 4 e through g the overcurrent.