Conversion using the Ground Wire Size Calculation Formula
National Electrical Code Table 250.122 determines the minimum required sizes of the ground conductor based on circuit breaker ratings. The general guideline is:
- A_ground = Ground conductor cross-sectional area (mm² or AWG)
- I_fault = Maximum fault current (Amps)
- K = Material-dependent constant (based on copper or aluminum)
Where:
Suggested Reading
- Line To Phase Current Conversion Calculator
- Vertical Jump Power Conversion Calculator
- Hv High Voltage Cable Sizing Conversion Calculator
- Motor Current Conversion Calculator
- Line Current Conversion Calculator
- Watts To Wh Conversion Calculator
- Neutral Current Conversion Calculator
- Inductor Power Loss Conversion Calculator
- Average Power Conversion Calculator
- Capacitor Power Conversion Calculator
- Charge To Current Conversion Calculator
- Pwm To Voltage Conversion Calculator
- How To Find 3 Phase Neutral Current
- Rf Average Power To Peak Power Conversion Calculator
- Kva To Amps Conversion Calculator
- Motor Startup Current Conversion Calculator
- Va To Watts Conversion Calculator
- Torque To Power Conversion Calculator
Ground Wire Size conversion chart
Amperage (A) | Copper Wire Size (AWG) | Aluminum Wire Size (AWG) |
---|---|---|
10 | 10 AWG | 8 AWG |
15 | 14 AWG | 12 AWG |
20 | 12 AWG | 10 AWG |
30 | 10 AWG | 8 AWG |
40 | 8 AWG | 6 AWG |
50 | 6 AWG | 4 AWG |
60 | 6 AWG | 4 AWG |
70 | 4 AWG | 2 AWG |
80 | 4 AWG | 2 AWG |
100 | 2 AWG | 1 AWG |
150 | 1 AWG | 1/0 AWG |
200 | 1/0 AWG | 2/0 AWG |