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 (including multimeters, electrical circuit tracers, and tone generator and probe kits)
- Electrical Wiring
- Fundamentals of Electrical Circuits
- Electrical Symbols & Terminology
- Electrical Components and Equipment (including junction boxes and feeder pillars)
- 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…
Best Clamp Meter: Our Top 10 Picks of 2019
A clamp meter is a versatile tool that combines a basic digital multimeter with a current sensor. A good clamp meter will give you accurate voltage and current measurements, can…
Safety Glasses: Types, Regulations & Accessories
What are Safety Glasses? Safety glasses are a ruggedized set of glasses that protect your eyes against flying debris or other contaminants (such as chemicals). Safety glasses typically use a…
Types of Screwdrivers: The Complete Guide
What is a Screwdriver A screwdriver is a tool that allows you to amplify the turning motion of your hands. Its main function is to make the process of removing…
What is a Feeder Pillar (Power Box)?
A feeder pillar (also known as a power box or feeder pillar box) is a cabinet used to house electrical equipment. Feeder pillar’s act as a central circuit which controls…
Best Lineman Boots: Our Top 11 Picks of 2019
As a Lineman, you’ll need a solid pair of work boots that can survive a rough week on the job. There are thousands of lineman boots on the market, so…
Best Electrical Gloves: Our Top 10 Picks of 2019
If you want to keep your hands comfortable while you work, you’re going to need a quality set of electrical gloves. The best electrical gloves will be comfortable, lightweight, and…
Best Tone Generator And Probe Kit: Top 7 of 2019 Reviewed
A good tone generator and probe kit makes it simple to trace wires and identify unlabelled cables. The best tone generators produce a clear, audible tone over a long distance…
Best Electrical Circuit Tracer: Top 11 of 2019 Reviewed
Finding cables, wires and breakers can sometimes feel like a long (and frustrating) game of hide and seek. It is frequently done by trial and error, which is extremely time…
Best Electricians Tool Backpack: Our Top 10 Picks of 2019
When you’re carrying a lot of heavy tools, having a good backpack can make work a lot easier. The best electricians backpack should be comfortable, have lots of pockets and…
What is Fish Tape?
Fish tape (also known as electrical fish tape, draw wire, draw tape, or pull tape) is an electricians tool used to pull wire through walls or electrical conduit. Fish tape…
Best Electrical Fish Tape (2019 Review)
The best fish tape should be strong, easy to slide in and out, easy to carry, and have an impact resistant case. These are the main criteria we looked at…
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: Top 7 Voltage Pens of 2019
Using a bad voltage tester is an excellent way to get an electric shock (read: not a good idea). A good non contact voltage tester will not only save 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 (Our Top 8 Picks of 2019)
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 Belt (Our Top Picks of 2019)
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 For Electricians (Top 11 of 2019 Reviewed)
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…