Electrician Handbook — Basics 4.0.5 - App Store

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About Electrician Handbook — Basics

Electrician’s Handbook - an app for electricians, students, and installers. Theory, diagrams, and calculators in one place. Works offline. No ads. No subscriptions. - Theory A variety of topics in electrical engineering:...

Electrician’s Handbook - an app for electricians, students, and installers. Theory, diagrams, and calculators in one place. Works offline. No ads. No subscriptions. - Theory A variety of topics in electrical engineering: from basic concepts to grounding and lighting diagrams. Some topics include exercises with answers for self-check. - Diagrams Interactive electrical diagrams. You can interact with elements to better understand how they work. - Calculators A section with calculators, formulas, and useful reference tables. - Community A section where users can ask questions, share experience, and get advice from other members. - Contents of the "Theory" section: Basic concepts . Voltage, current, resistance, power . Ohm’s Law, Kirchhoff’s rules . Parallel and series connections . Short circuits, safety precautions . Electrical engineering terms Electromechanical converters . Transformer, generator, electric motor . Connecting a three-phase motor using a capacitor Protection and automation devices . Circuit breaker, RCD, RCBO . Voltage monitoring relay, contactor, fuses . Surge protection devices Cables and wires . Wire connection methods . Selecting cross-section by current and power . Color coding . Electrical panel Power stations and substations . Nuclear, thermal, solar, hydro, wind, and geothermal power stations Measuring instruments . Voltmeter, ammeter, ohmmeter, multimeter . Clamp meter . Electricity meter Grounding . Types of grounding systems . Equipotential bonding system Lighting . Incandescent, LED, and other types of lamps . Lamp holders, bases, lumens, lux . Color temperature . LED strip Work execution . Socket repair . Installation of flush-mounted and surface-mounted sockets . Switch installation Additional information . Power supply categories . Surge overvoltages . IP protection rating . Electrician’s tools . Types of outlets and plugs, voltages in different countries . Joule’s Law, Coulomb’s Law . Right-hand and left-hand rules - Contents of the "Diagrams" section: . Switch (1 and 2 gang) . Three-gang switch . Two-way switch . Two-way switch with intermediate switch . Outlets and switch in one block . Lighting with dimmer . Motion sensor lighting . Relay with light sensor . Lighting with impulse relay . Fluorescent lamp wiring . Socket wiring diagrams . Magnetic starter for motor . Star and delta motor connection - Contents of the "Calculators" section: . Basic formula calculator . Electricity cost calculator . SI unit system and metric prefixes . Diameter ↔ cross-section table . AWG to mm and mm to AWG conversion . Electronic component symbols

Version History - Fixed some errors in the article text 4.0.5 2d ago - Added ability to change language in settings - Added quick result copying in calculators 4.0.2 Mar 10 Minor visual fix 3.4.1 Jan 5 Added the “Electrical Panel Designer” tab 3.4.0 12/17/2025 Added voltage drop calculator Added resistor color code calculator 3.3.9 12/12/2025 bug fix 3.3.6 11/18/2025 Added reading progress bar 3.3.5 08/20/2025 Minor fixes 3.3.4 07/19/2025 Minor improvements and fixes 3.3.3 07/14/2025 — Added navigation buttons between articles 3.3.2 07/02/2025 Minimal fixes 3.3.1 06/22/2025 Community tab added. Ask questions and share your experience 3.3.0 06/17/2025 — Minor fixes — Added mention of millivolt, kilovolt, and megavolt in the article about electric voltage 3.2.3 06/12/2025 — Minor bug fixes — iPad version added 3.2.2 06/11/2025 — Minor bug fixes 3.2.1 06/06/2025 Advertising has been completely removed from the app. 3.2.0 06/05/2025 Fix for a bug in the "Electronic Components" section that caused the app to crash. 3.1.3 06/03/2025 • Fixed issue with opening theory articles • New main menu design 3.1.2 05/20/2025 — We've refreshed all articles from top to bottom! — Enjoy newly improved translations that read naturally and clearly. — Tons of new practical content has been added for even more value. — Dive in and see what’s new — the updated material is ready for you! 3.0.3 04/23/2025 Bug fixes 2.9 11/08/2024 Bug fixes 2.8 11/03/2024 Bug fixes 2.7 09/08/2024 Bug fixes 2.6 12/15/2023 Minor bug fixes 2.5 12/12/2023 Bug fixes 2.3 06/04/2023

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Previous Versions

Here you can find the changelog of Electrician Handbook — Basics since it was posted on our website on 2022-08-31 18:39:28. The latest version is 4.0.5 and it was updated on 2026-06-06 10:11:12. See below the changes in each version.

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