Commercial Electrical Toolkit
iOS Universel / Economie et entreprise
Commercial Electrical Toolkit is a professional reference and project-management tool built for electrical engineers, project managers, and construction teams on commercial distribution projects.
WHAT'S INSIDE
Four Professional NEC Calculators
Voltage Drop — calculates conductor voltage drop per NEC guidelines with pass/fail against the 3% recommendation. Supports copper and aluminum conductors from #14 AWG to 500 kcmil, single-phase and three-phase systems.
Conduit Fill — checks NEC Chapter 9 Table 1 fill limits for EMT conduit (½" through 4") with THHN/THWN-2 wire sizes up to 350 kcmil. Supports up to three wire sets in one raceway.
Demand Load — estimates service entrance amperage using NEC Article 220 demand factors for lighting, receptacles, HVAC, motors, and miscellaneous loads. Automatically identifies the next standard ampere rating per NEC 230.79.
Fault Current — calculates available short-circuit current at the transformer secondary using IEEE C37.010 inputs. Includes asymmetrical peak current factor, X/R ratio, and PPE category guidance.
42-Drawing Engineering Reference Library
Full-resolution reference drawings spanning all 17 phases of a commercial electrical distribution project — from utility coordination through project closeout. Drawings are searchable, filterable by phase, and open in a full-screen zoomable viewer.
17-Phase Workflow Tracker
Track a complete commercial electrical distribution project from utility coordination through project closeout. Each phase contains detailed steps with professional descriptions, deliverables, and completion tracking backed by SwiftData persistent storage.
Deliverables & Document Manager
Monitor drawing submittals, calculation packages, equipment schedules, and closeout documents with real-time completion status. Color-coded indicators show at a glance what is pending, in review, or approved.
Arc Flash & Fault Current Guidance
Estimate available short-circuit current at the transformer secondary and evaluate PPE requirements using IEEE 1584 and IEEE C37.010 inputs. All results include a clear disclaimer directing users to a licensed engineer for a full arc flash study per NFPA 70E.
Who It's For
Electrical engineers managing commercial distribution design packages
Project engineers and project managers on construction sites
Electrical contractors coordinating multi-phase commercial projects
Apprentices and students preparing for professional practice
All NEC formulas reference the National Electrical Code. All fault current calculations are informational estimates; a licensed professional engineer should perform the full short-circuit and arc flash study for any real installation.
Quoi de neuf dans la dernière version ?
Version 2.0 is a major update:
Four new professional NEC calculators: Voltage Drop, Conduit Fill, Demand Load, and Fault Current
Arc flash and short-circuit current estimation with IEEE C37.010 inputs
New Calculators tab accessible directly from the main navigation
42-drawing engineering reference library with full-screen zoom viewer
What's New onboarding screen highlights features on first launch
Performance and stability improvements throughout
