iCertifi vs Electrical Calculations

Create professional BS 7671 electrical certificates on your iPhone or iPad — on site, offline, in minutes. Updated for Amendment 4 (A4:2026). iCertifi covers 15 certificate types and is trusted by thousands of UK electricians. CERTIFICATE TYPES: • Electrical Installation Certificate (EIC) • Domestic EIC • Electrical Installation Condition Report (EICR) • Minor Works Certificate • 3 Circuit Minor Works • EV Charger Certificate (Full EIC) • Solar PV Certificate (8-part, BS EN 62446-1) • Electrical Danger Notice • Earthing & Bonding Certificate • Electrical Isolation Certificate • Landlord's Interim Check • Ventilation Certificate • Risk Assessment • Visual Inspection • EV Charging Risk Assessment All certificates fully comply with BS 7671:2018 18th Edition + Amendment 4 (A4:2026). AI-POWERED FEATURES: • BoardVision AI — photograph a distribution board and auto-populate every circuit, device type, and rating. Supports MCB, RCBO, and AFDD identification • MFT Scanner — photograph your multifunction tester display and readings are extracted automatically. Supports Megger, Fluke, Kewtech, Metrel, and more • Circuit Schedule Scanner — scan a paper schedule and import all circuits instantly • Spark AI Assistant — ask BS 7671 questions while you work CIRCUIT DESIGNER: Built-in BS 7671:2018+A4 cable sizing calculator with a guided 5-step wizard: • Current-carrying capacity with full derating factors (Ca, Cg, Ci, Cc) • Voltage drop calculations (3% lighting, 5% power) • Earth fault loop impedance (Zs) validation • Protective device selection • 20+ circuit types including EV chargers, solar PV, ring finals, three-phase • TT system support with 50V/IΔn formula • Exportable PDF calculation sheet PROFESSIONAL PDF OUTPUT: • 10+ EICR presentation templates (Grid, Minimal, Blocks, Classical, and more) • Custom company branding — your logo, colours, and trading name on every certificate • Photo-rich observation reports with captions • Email PDFs directly to clients from the app QUALIFYING SUPERVISOR (QS) REMOTE SIGNING: • Send certificates to your QS for review and approval • Digital signatures applied remotely via iCloud • Real-time push notifications when approved • No more chasing paper signatures OBSERVATIONS & PHOTOS: • Full observation system with C1, C2, C3, and FI codes • Attach multiple photos per observation with captions • Photo gallery embedded in final PDF report WORKS OFFLINE: • Create and complete certificates without mobile signal • All BS 7671 reference tables stored locally • Syncs automatically when back online BACKUP & SYNC: • iCloud sync across iPhone, iPad, and iPad on Mac • One-tap backup and restore • Never lose a certificate again SAVE TIME WITH TEMPLATES: • Pre-fill distribution board layouts • Reusable circuit templates • Clone previous certificates • Alternative contractor profile for multiple trading names BUILT FOR UK ELECTRICIANS: iCertifi is designed exclusively for qualified UK electricians. Every certificate, calculation, and reference is based on BS 7671:2018 (18th Edition Wiring Regulations) with Amendment 4 (A4:2026). Join thousands of electricians who have made iCertifi their go-to certification tool. No additional device licences needed. Use on all your iOS devices under one subscription. iCertifi is free to use in trial mode. To send, save, print, or export certificates, a subscription is required. Subscriptions auto-renew unless cancelled in your Apple Account settings. Other Paid Upgrades Include: • Built-in backup and restore • BS7671 AI Assistant • Zs Calculator • Top up AI credits as needed (10, 50, or 250 packs) Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://icertifi.zendesk.com/hc/en-us/articles/201659279-iCertifi-s-Privacy-Policy-all-apps-

Electrical Calculations is the PROFESSIONAL app for those who work with electrical systems every day: design, size and verify in just seconds, from the job site or the office. Over 200 calculations, diagrams, formulas and tables in a single app, with clear, printable PDF reports to attach to your documents. Designed for electricians, installers, designers and surveyors, it saves you time and helps you avoid mistakes: from cable sizing to short circuit. COMPLIANT WITH STANDARDS Reliable results aligned with the main standards: IEC (International Electrotechnical Commission), CEI (Italian Electrotechnical Committee), NEC (National Electrical Code), CEC (Canadian Electrical Code). WHY CHOOSE IT SAVE TIME: the calculations you'd do by hand, instantly available here. AVOID ERRORS: verified formulas and up-to-date regulatory parameters. PROFESSIONAL REPORTS: PDF reports ready for printing and archiving. ALWAYS WITH YOU: over 200 tools including calculations, converters, tables and pinouts. THE MOST USED CALCULATIONS Cable sizing and coordination with the protective device, voltage drop, operating current, current intensity, voltage and power (active, reactive, apparent). Power factor and power factor correction. Current capacity of conductors and busbars, sizing of conduits and trunking, maximum cable length. SHORT CIRCUIT AND PROTECTION Short-circuit current at a point on the line, earthing system and coordination with the residual current device, cable protection against short circuit (K²S²), power loss, cable temperature, neutral current. ELECTRIC MOTOR Motor current, power, voltage, efficiency and power factor, slip, speed, maximum torque and full-load current. Three-phase motor connection diagrams, terminal markings. Three-phase to single-phase. ELECTRONICS Color and alphanumeric codes for resistors, capacitors and inductors, SMD code, LED resistor, voltage and current divider, Zener diode, battery life, resonant frequency, fuses and transformers. CONVERSIONS Delta-star, AWG, SWG, cross-section, length, energy, temperature, pressure, Ah/kWh, var/µF, Gauss/Tesla, RPM and many more. RESOURCES AND TABLES Tripping curves, cable reactance and resistivity, cable dimensions and weight, distribution systems (TT, TN, IT), IP/IK/NEMA protection ratings, ATEX marking, insulation classes, electrical symbols, ANSI device codes, plugs and sockets, IEC 60309, NEMA and EV charging connectors, SI prefixes and units of measurement, thermistors and thermocouples. PINOUTS Ethernet RJ-45, Ethernet with PoE, USB, HDMI, VGA, DVI, RS-232, FireWire, SATA, DisplayPort, Apple Lightning, Raspberry Pi, OBD II, XLR audio/DMX, MIDI, Jack, RCA, Thunderbolt, SD Card, SIM Card and LED. Stop searching everywhere for formulas and tables: PUT YOUR ENTIRE ELECTRICAL LAB IN YOUR SMARTPHONE. Download Electrical Calculations and work faster, with standards-compliant results. Terms of service (EULA): https://www.egalnetsoftwares.com/terms_of_service_app/