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400 AMP Services are no joke.. Lots of Power #hendythesparky

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Video by Hendy The Sparky

Hendy The Sparky

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This video showcases a master electrician critiquing a commercial electrical service installation, highlighting common flaws and best practices. It covers physical damage to conduit components, inadequate support causing structural stress, and the implications of voltage selection (120/208V versus 480V) for commercial applications. This analysis provides valuable insights for anyone interested in understanding electrical code compliance, potential hazards, and optimal design choices for robust electrical systems.

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So, this is a prime example we're talking about right here. Look, see this LB is broken. See, it's cracked right here. Oh, yeah. And it's even pulling out from the lock ring, right? Why? Because it's settling down. So, even though there's an McAdam driveway pavement here. Now, it does have a strap, which it's supposed to, but it should have another strap below this. Yeah. To prevent it from sinking like that. Okay. So, it's just pulling straight down. I mean, I don't see any more. It could be like that for a while, but at least there's a strap here or this was added later. Is this a 400 amp service? Yes. All right. Yeah, I can tell by the conduit. Yes, it's a 4 in. So, it's 400 amp maximum at a 4 in. Okay. This is the disconnect. I see them. I see 12208 volt. 12208 volt, which is unusual for a commercial service, right? Usually it would be 480 volt, not 12208 because this is a simple deltay transformer. Okay. It's better for you to have 480 volt and then step it down. Higher the voltage, the less the current. You could put more on a service. So, a service like this would be limited. Like if this was for EV charging, you could put EV charging here. That would concern me that it's 1208. That makes sense. I

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