Category: Theory

Arc-Fault, Ground-Fault, and Dual-Function Circuit Breakers Explained

This video was sponsored by Schneider Electric AFCI/GFCI/DF There’s no doubt that if you’re in the electrical field, you’ve heard the phrases “arc fault”, “dual function”, and “GFI” a few times and been a bit confused about what the differences are, or if it even matters.  Well my friends, this week we lay all...

Can Electricity Travel Through Wood?

Does electricity travel through wood? Well we see trees, homes, and power poles get struck all the time, but we’re also told that wood is an insulator…so what gives? ARIAT BOOTS: Save 10% off your first order – https://bit.ly/3iHn0B2 Dustin’s Favorites – https://bit.ly/32DA7hb Holiday Sale 11/21 – 11/30 – https://bit.ly/36a2vbg Electricity is considered an...

120v, 208v, 240v, 277v, 480v – Why So Many VOLTAGES? What’s The Difference?

What is the difference between all of these different voltages? Why are they used, what’s the purpose behind them, and where do the numbers come from? Website – https://www.electricianu.com Discord – https://discord.gg/7ykYfbh Facebook Page – https://www.facebook.com/theelectricianu Facebook Group – https://bit.ly/2tz7eQh Instagram – https://www.instagram.com/electrician_u LinkedIn – https://www.linkedin.com/in/dustinste… Low Voltage systems (50 volts and below) are...

Resistance/Impedance (Ohms)

Website – https://www.electricianu.com Facebook – https://www.facebook.com/theelctricianu Electrical Wizardry – https://bit.ly/2tz7eQh Instagram – https://www.instagram.com/electrician_u Twitter – https://www.twitter.com/electrician_u Resistance is a very important element of an electrical circuit. As electricians we use the term impedance more than we use resistance, as impedance refers to AC circuits – whereas resistance refers to DC. Resistance and Impedance are...

Electric Current (Amperes/amps)

Electric current is one of the hardest things to wrap your head around when you’re first getting into the electrical trade.  Many apprentice electricians get confused with the difference between current and amps.  Well, that’s because people talk about electrons and charges and interchange the terms without really knowing what the difference is. Electric...

Difference Of Potential (VOLTAGE)

Voltage is an electromotive force created by a difference of potential. Therefore the terms voltage and difference of potential can be interchangeably used. The term “difference of potential” is often used in describing the ability of an electric circuit to create movement. Just like in Physics you have potential energy and kinetic energy, in...