Field ServiceElectrical Code Compliance3MediumElectrician$ implied
An electrician is unsure about correctly sizing transformer secondary conductors to avoid undersizing or needing to replace lugs.
No software tool exists that combines transformer sizing, conductor ampacity tables, and terminal lug ratings to quickly determine correct wire size and identify potential lug incompatibility.
47
0
Opp. Score
47
Severity
3Medium
Willingness to Pay
implied
Added
Jun 9, 2026
Implied Software Gaps
- Automated transformer secondary conductor sizing with NEC table lookup and lug compatibility check
App Concept
WireSize Pro
A mobile app that helps electricians quickly and correctly size conductors for transformers and other equipment. It integrates code tables, correction factors, and terminal rating limits, providing a compliance-ready answer in seconds.
Key Features
- Input transformer kVA, primary/secondary voltage, and fuse size to auto-calculate required conductor ampacity
- Display appropriate wire sizes from relevant NEC tables (including ACWU/THHN) with temperature correction
- Flag when wire size exceeds available lug ratings and suggest alternatives (parallel runs, larger lugs, etc.)
- Generate a summary report suitable for job documentation
Target Users: Licensed electricians and electrical contractors in residential, commercial, and industrial service across North America
Revenue Model: $14.99/mo subscription or $99/year
Part of App Idea
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