Electrical Systems Visual Lab
NEC Code Simulations & Tools
$1.99 · Designed for iPad. Not verified for macOS.
Version 2.0: New Conduit Fill Calculator, NEC Inspection Checklist, and Wire Ampacity Guide — three field-ready tools now in the Tools tab.
Master electrical systems the visual way — with three new engineering tools, eight animated simulations, 76 illustrated diagrams, NEC code reference, and structured curriculum. Built for electricians, apprentices, and electrical engineers.
NEW IN VERSION 2.0 — ENGINEERING TOOLS TAB
Three practical, field-ready tools exclusive to this app:
Conduit Fill Calculator — Select conduit type (EMT, IMC, RMC, PVC Sch 40/80) and trade size, add conductors by AWG, and get live NEC Chapter 9 fill compliance — green for pass, red for violation. Wire areas pulled directly from NEC Table 5.
NEC Electrical Inspection Checklist — 52 NEC code items across six inspection categories: Service Entrance & Metering, Panelboard & Overcurrent Devices, Branch Circuits & Outlets, GFCI & AFCI Protection, Grounding & Bonding (Article 250), and Special Systems. Tap to check items, track your pass rate, and reset for the next job.
Wire Ampacity Guide — Interactive NEC 310.16 reference for copper and aluminum conductors from 14 AWG through 500 kcmil. Apply ambient temperature correction and conduit fill derating — adjusted ampacity updates instantly. Tap any row to highlight it for quick comparison.
EIGHT ANIMATED LAB SIMULATIONS
Watch electricity behave in real time through canvas-rendered interactive simulations: Power Grid, 3-Phase Phasors, Voltage Drop, Ground Fault/GFCI, Transformer, Motor Control (DOL + VFD), Arc Flash, and Panel Load Calculator.
76 ILLUSTRATED DIAGRAMS
Professional electrical diagrams across 10 categories — Fundamentals, Power Systems, Service Entrance, Distribution, Branch Circuits, Conductors, Grounding, Motors, Floor Plans, and Special Systems. Full-screen slideshow with pinch-to-zoom. Optimized for iPad with side-panel layout.
NEC CODE REFERENCE
Formulas, NEC Codes, Wire & Conduit tables, Equipment specs, Controls & PLC, Standards, and Glossary — organized and searchable, no internet required.
STRUCTURED CURRICULUM
Step-by-step lessons across Beginner, Intermediate, and Advanced modules with explanations, code examples, and quiz questions.
WHO IT'S FOR
Electrical apprentices · Journeymen & master electricians · Electrical engineering students · Electrical inspectors · Contractors · Anyone studying for the journeyman or master electrician licensing exam
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Version 2.0 adds a dedicated Engineering Tools tab with three new features: (1) Conduit Fill Calculator — select conduit type and trade size, add conductors by AWG, and get live NEC Chapter 9 fill compliance; (2) NEC Electrical Inspection Checklist — 52 code items across six inspection categories with a progress tracker; (3) Wire Ampacity Guide — interactive NEC 310.16 table with ambient temperature correction and conduit fill derating for copper and aluminum. The app also displays a What's New screen automatically on first launch. All existing simulations, illustrations, curriculum, and reference content remain unchanged.
The developer, Yuhsiu Lai, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Yuhsiu Lai
- Size
- 137.1 MB
- Category
- Education
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 iTech Tools
