Master Electrician Dad Passing down Knowledge to Son about Low, Medium, and High Voltage, Thoughts?

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Hendy The Sparky

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This video features a Master Electrician Dad explaining to his Apprentice Son the differences between Low, Medium, and High Voltage in an electrical context. It clarifies the specific voltage ranges for each category, offers practical examples like data wiring (Cat 5E, PoE) and typical residential wiring, and introduces the crucial concept of 'headroom' in equipment voltage ratings. This foundational knowledge is highly relevant for anyone engaging in DIY electrical projects, ensuring an understanding of electrical safety and proper equipment usage.

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What is considered low voltage, what is medium, and what is high? >> Low voltage technically is 50 volts. 0 to 50 volts is low voltage. In fact, a lot of places have a low voltage license. Like that skinny Cat 5e cable that we run. >> Data wire. [music] >> Data wire. We can put 50 volts on that. PoE, power over Ethernet. >> Mhm. >> The medium voltage would be anywhere from 51 to 600 volts. 600 volts is the cutoff. If you have something that's rated for 240 volts, it's rated for 250. >> Why is that? >> Well, it's got to have some headroom, right? It can't be designed just for, you know, 240. It's got to have a little bit of headroom because often times it's not 240 volts coming in. >> Yeah, it's like 248, 247. >> You're right, yeah. >> So, 250 is what it's rated at. And then high voltage is anything over 600 volts. >> High voltage is anything over 600 volts. Yes, it is. >> And we very rarely work on them now. I don't in an environment for like repairs or controls. >> And you probably

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