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Featured answer · Electrical
Voltage drop is the voltage lost in a conductor as current flows through it, expressed as a percentage of source voltage. Many designs target 3 percent on branch circuits and 5 percent total for feeder plus branch, but those NEC figures are informational recommendations, not enforceable limits. Project specifications, equipment voltage tolerance, and the adopted code edition control the call.
Read the voltage drop field guide3 ph
| System | 480 V / 3ph |
|---|---|
| One-way length | 150 ft |
| Load current | 68 A |
| Conductor | #2 Cu |
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