This site is dedicated to the sharing of electrical knowledge.
A place for electrical professionals – including electricians, electrical engineers, electronics engineers and control engineers – to help each other out.
Electrical Knowledge’s purpose is to collect, warehouse and makes freely available information sought by electrical professionals.
We cover a range of electrical theory and concepts including:
- Basic Electrical Engineering
- Electrical Safety
- Electrical Tools, Components and Equipment
- Electrical Wiring
- Fundamentals of Electrical Circuits
- Electrical Symbols & Terminology
- Electrical Formulas & Theory
- Power Electronics
We’d love to hear from you – no question is too basic. Please contact us if you would like to contribute or request a specific topic.
There is nothing more frustrating than doing work with poorly made tools. It always ends up being a complete waste of your time, energy, and money. I spent $5 on…
A surge protector – also known as a surge suppressor, spike suppressor, transient voltage surge suppressor (TVSS), or surge diverter – is the name given to a broad group of…
A multitester, also known as a multimeter or VOM (Volt-Ohm-Milliammeter), is an electronic measuring instrument used to measure various electrical parameters. Multitesters are a standard diagnostic tool for technicians and…
An alarm dialer (or alarm dialler) is an electronic device that automatically triggers an alarm when a predefined condition is met. This alarm is accompanied by a specific action – such…
A junction box – also known as an electrical box’, ‘jbox’, ‘or ‘terminal box’ – is a protective box where wires are interconnected. Junction boxes are found both indoors and outdoors….