Audit one documented series circuit path from source-labelled segment currents, lengths, path multipliers and effective impedances—without assuming copper, choosing wire size or applying a pass/fail threshold.
A quick decision brief for this specific tool
One de-identified reviewed circuit path; named segment-model and impedance sources; one paired foot/ohms-per-1000-feet or metre/ohms-per-kilometre unit system; source voltage; and one through three complete segments with current, one-way length, path multiplier and effective impedance
Source-preserving voltage drop for each entered segment, summed path drop, percentage against entered source voltage and load-side arithmetic
Evaluate current x one-way length x only the entered path multiplier x entered impedance per 1,000 units for each segment and sum; do not select copper, AWG, a universal 2x path, allowable percentage, larger wire or compliance verdict
Choose your path
Reproduce one source-labelled series circuit path from independently documented segment currents, lengths, path multipliers and effective impedances without choosing a conductor or allowable drop.
Reproduce feeder and branch portions without forcing one current, one conductor or a universal 2x path across the whole route.
Name the circuit and impedance sources, copy up to three complete segments and inspect each drop plus the total.
Can trace the path while conductor selection and acceptable performance remain in the complete design.
See whether every segment current, length, multiplier and impedance matches the submitted calculation.
Inspect the wrapping source/model cards, paired units, segment steps, total percentage and load-side arithmetic.
No fixed copper table, 3% pass/fail or larger-wire recommendation is generated.
Learn why series segments can have different current and path/phase models and cannot be flattened into one generic AWG row.
Run separate foot and metric education records with explicit impedance values and compare the exposed sum.
Can reproduce the arithmetic and list material, ampacity, protection, equipment and approval checks the tool omits.
Outputs and checklists are planning aids. Review the linked current authorities and the records, terms, instructions, and requirements that apply to your exact situation before a consequential decision.
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The responsible calculation owns segment boundaries and currents. Do not flatten feeder, branch or other portions into one current and one conductor when the reviewed model treats them separately.
Path record = source voltage + one to three documented series segmentsEvery path multiplier and effective resistance/impedance comes from the named source. The tool never assumes 2×, copper, AWG, temperature, phase or AC/DC conditions.
Segment drop = current × one-way length × entered path multiplier × entered impedance ÷ 1,000The percentage and load-side arithmetic reproduce the entered model only. No 3% or 5% threshold, equipment minimum voltage, larger-wire recommendation, ampacity result or compliance decision is inferred.
Total drop = Σ segment drops; percent = total drop ÷ entered source voltage × 100Updated: August 2026
A reviewer copies separate segment currents, lengths, path multipliers and impedances from a submitted path. The ledger exposes both drops and their sum without choosing either conductor.
An engineer uses metres with ohms per kilometre and an explicitly documented phase/path multiplier. Paired units prevent silently mixing feet with metric impedance data.
An apprentice runs separate source-labelled records to see how segment assumptions change arithmetic. The result never grades the percentage or recommends a wire size.
Reproduce the arithmetic in one reviewed circuit path. Name the segment-model and impedance sources, choose one paired foot or metric unit system, and enter up to three complete series segments. Each segment keeps its own current, one-way length, path multiplier and effective impedance; final conductor and acceptable-performance decisions remain outside the tool.