Billetweb Scan vs VoltWork

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VoltWork is the electrician's calc bench — every calculation you run on the truck, in the panel, or at the estimating desk, in one fast, offline app. Voltage drop, conductor sizing with full derating, conduit fill, box fill, conduit bending, grounding, and Ohm's law — built against NEC 2023, with every answer showing its work. WHY ELECTRICIANS USE VOLTWORK • Answers in seconds, not table-flipping. Chip-based inputs and steppers instead of typing — built for gloves, dirty hands, and one-handed use on a ladder. • Every result shows its work. Tap "Show work" on any answer to see the full step-by-step derivation with NEC section citations — the same pattern that serves a 30-year master who wants the number now, and an apprentice studying for the journeyman exam who wants the why. • 100% offline. No signal in the basement, no problem. Every calculator, every table, and your saved job history work with zero connectivity. • Job memory. Save any calculation with a job name — "Panel A – Kitchen Circuit" — and find it later with the full result and derivation intact, not just a number. • No ads. No account required. Nothing leaves your device. CALCULATORS INCLUDED Voltage Drop — K-factor and exact impedance (NEC Chapter 9 Table 9) methods, with solve modes for minimum conductor size and maximum run length. One-way length input only — the app handles the return-path multiplier for you, the #1 user error on other calculators. Conductor / Wire Sizing — the full NEC selection chain, not a table lookup: 125% continuous-load factor, Table 310.16 ampacity, ambient temperature correction, bundling adjustment for more than 3 current-carrying conductors, the 110.14(C) termination check (the classic "90°C wire, 75°C lugs" trap, explained), and OCPD sizing with the 240.4(B)/(D) rules. Conduit Fill — mixed conductor baskets (real jobs mix wire sizes and a bare ground), Chapter 9 Tables 1/4/5/8, the nipple rule, and a jam-ratio warning when three same-size conductors risk wedging in a bend. Box Fill — NEC 314.16(B) volume allowances for conductors, devices, clamps, and grounds, including the 2023 quarter-allowance rule for equipment grounds beyond four. Suggests compliant box sizes automatically. Conduit Bending — offsets, 3-point saddles, 90° stub-ups with an editable bender take-up library, and rolling offsets. Every dimension is shown as a tape-measure-ready fraction. Grounding — GEC sizing from Table 250.66 and EGC sizing from Table 250.122, including the proportional-upsize rule when conductors are upsized for voltage drop. Ohm's Law & Power — the classic PIRE wheel (solve for any two of volts/amps/ohms/watts), a kW/kVA/amps/power-factor solver for single- and three-phase systems, and 3-phase unbalanced neutral current. Voltage Drop, Conduit Bending, and Ohm's Law/Power are free with no limits, no trial period, and no ads — because the free tier should be the best free electrician app in the category, full stop. Try out everything without paying anything. Once you feel confident, you can purchase it! Subscription and Pricing -------------------- ONE-TIME PURCHASE, NO SUBSCRIPTION | $24.99 Monthly Subscription: $2.99 Yearly Subscription: $0.99 for 1st month, then $19.99 per year BUILT FOR THE FIELD • Dark, high-contrast interface readable in bright sunlight and dark job sites • Large touch targets sized for gloves • Haptic feedback on pass/fail results — glanceable on a ladder • Full VoiceOver support VoltWork is a calculation aid, not an engineering service. Always verify results against locally adopted code amendments and your Authority Having Jurisdiction (AHJ). Fault-current and other estimate-only calculations are clearly labeled as field estimates, not a substitute for an engineering study. Have feedback, a bug to report, or a calculator you want added? Send it from inside the app — we read every message. Privacy Policy: https://www.mindzbase.com/privacy-policy Terms of Use: https://www.mindzbase.com/terms-of-use