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.
The Best Tools For Electricians Reviewed (2019 Update)
Today I’m going to show you the best tools used by electricians around the world. These tools are a must have for electricians who don’t want to waste their time…
How Does a Non Contact Voltage Tester Work?
Non-contact voltage testers (also known as voltage tester pens, test pens, or voltage sensors) are the safest way to detect the presence of AC voltage. Non contact voltage testers work…
Best Non Contact Voltage Tester (2019 Review)
Picking out the right voltage tester can often be a challenge because of the range of poor products saturating the market. A quality non contact voltage tester can let you…
How To Strip Wire
While doing any kind of DIY electrical work, you’ll frequently find that you need to strip the insulation off of the wire you’re working with. Clean and accurate wire stripping…
What is a Lineman (And How Much Do They Make)?
A lineman (also known as a lineworker) is a person who installs and repairs cables or wires used in electrical power or distribution systems. This may include installation and maintenance…
How To Use And Read A Multimeter
What is a Multimeter? A multimeter, also known as a multitester or VOM (Volt-Ohm-Milliammeter), is an electronic measuring instrument used to measure various electrical parameters. Multitesters are a standard diagnostic…
Best Safety Glasses (2019 Review)
Picking the right set of safety glasses is crucial for proper eye protection. The vast majority of work accidents can be prevented through the proper use of protective equipment, and…
What is Deburring?
Deburring is defined as a process of removing burrs and smoothing out the edges of the metal. It enhances the quality, boosts aesthetic value, and prevents distortion. Put simply, deburring…
Best Deburring Tools (2019 Review)
Burrs are annoying. No matter how hard you strive for the perfect smooth edge – a burr here or there is bound to appear. That’s fine. But what’s not okay,…
Best Headlamp for Work (2019 Review)
If you usually work in wall cavities or other areas where there isn’t much light, then a headlamp (also known as a head torch) can come in handy. A well-made…
Best Wirestrippers (2019 Review)
Trying to use a pair of poorly-made wire strippers is a special kind of torture. Badly made wire strippers are a source of constant headaches. Having to constantly re-strip wire…
Best Insulated Screwdriver Set: Electricians Top 10 of 2019
Every electrician needs a good set of insulated screwdrivers. Messing around with a useless set of insulated screwdrivers is not only a bad idea from a safety perspective – but…
Best Linesman Pliers For Electricians (2019 Review)
My hands were throbbing in pain. My linesman pliers could barely open wide enough to fit the electrical wire I needed to slice. And even when they could – they…
Best Electricians Tool Belts & Pouches (2019 Review)
A quality tool belt & bag gives you quick access to your tools without getting in the way. You want a tool belt that’s going to survive the hard yards…
What is a Transient Voltage Surge Suppressor (TVSS)?
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…
Best Multimeters of 2019 (Plus Budget Options Under $50)
A quality multimeter gives you the readings you need quickly and accurately. While a cheap, badly made multimeter will only give you inaccurate readings (and headaches). But not all cheap…
What is an Alarm Auto Dialer?
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 –…
What is a Junction Box (Electrical Box)?
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…