Use this worksheet to carry circuit and conductor data into a voltage-drop check. Record the length basis, target, calculated drop, and selected conductor with the project record.
Circuit and conductor data
| Item | Record | Source / notes |
|---|---|---|
| Project name | Project record | |
| Circuit description | Enter project value | |
| System voltage (V) | Enter project value | |
| Phase or DC | Enter project value | |
| Load current (A) | Enter project value | |
| Circuit length (ft) | Enter project value | |
| Length basis (one-way or round-trip) | Record source or method | |
| Conductor material (copper or aluminum) | Enter project value |
Voltage-drop result
| Item | Record | Source / notes |
|---|---|---|
| Selected conductor size (AWG or kcmil) | Record result | |
| Voltage drop (V) | Record result | |
| Voltage drop (%) | Record result | |
| Target drop (%) | Record source or method |
Review record
| Item | Record | Source / notes |
|---|---|---|
| Review notes | Project record | |
| Date | Project record |
Before you use this worksheet
- Circuit length, one-way versus round-trip basis, phase, load current, voltage, conductor material, and conductor size are recorded from project data.
- Voltage drop targets can come from design criteria, owner requirements, equipment instructions, or engineering judgment.
- Ampacity and equipment requirements still need separate verification.
How to use this worksheet
Use the fields in order: record the project inputs, enter the calculation or field results, then document the source, review notes, and final selection.
FAQs
Is voltage drop a separate check from ampacity?
Yes. Voltage drop is a performance/design check, while ampacity and equipment rules still need separate verification for the selected conductor.