Electrician needs guidance on how to correctly calculate voltage drop for a long circuit run in a warehouse, specifically whether to use 80% breaker rating or VA per receptacle.

No single reliable source or tool that gives authoritative voltage drop calculation guidance for field electricians.

Severity

2Mild

Willingness to Pay

none

Added

May 29, 2026

App Concept

VoltDropPro

VoltDropPro is a mobile app that automates voltage drop calculations for electricians. Input circuit length, conductor size, load type, and ambient temperature, and get immediate NEC-compliant results with wire size recommendations. No more second-guessing between 80% rule and VA method.

Key Features

Load calculation presets for motor, receptacle, lighting, and continuous loads
Automatic selection of wire size based on voltage drop tolerance
Ambient temperature correction and bundling derating factors
Option to choose between NEC 80% rule or receptacle VA method

Target Users: Electricians and electrical contractors in commercial/industrial settings who size long branch circuits.

Revenue Model: $9.99 one-time purchase with optional $4.99/mo subscription for code updates and advanced features.

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