Electrician Handbook — Basics
Theory, wiring, calculator
$2.99 · Designed for iPad
Also Included In
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
Added reading progress bar
The developer, Sergey Vavaev, 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
- Sergey Vavaev
- Size
- 40.3 MB
- Category
- Reference
- Compatibility
Requires iOS 14.5 or later.
- iPhone
Requires iOS 14.5 or later. - iPad
Requires iPadOS 14.5 or later. - iPod touch
Requires iOS 14.5 or later. - Mac
Requires macOS 11.3 or later and a Mac with Apple M1 chip or later.
- Languages
English and 19 more
- English, Arabic, Czech, Danish, Dutch, French, German, Hungarian, Indonesian, Italian, Japanese, Polish, Portuguese, Romanian, Russian, Spanish, Swedish, Turkish, Ukrainian, Vietnamese
- Age Rating
4+
- 4+
- Copyright
- © 2025 Sergey Vavaev
