Please do not rely solely on CZcams videos for this training. To fully understand the requirements, review OSHA 1910 and NFPA 70e for up to date requirements including boundaries and personal protective equipment.
It's not relying on youtube, it's relying on "CED Central Industrial Division" and "CED Solution Consultant Network MCC Specialist Gene Reed". To not overgeneralize
@g quin That blast may or may have not come from 208. I just find that blast to be pretty big for 208, so I gave my opinion about it being 277. He explains how it's a bolted fault to ground i.e. they took a wire and stuck it on bare metal that has an equipment grounding conductor bonded to it; end result: arc blast. The conduit you mentioned is coming, as I previously said, from the top into the Disconnect box.
Why don't electricians wear arc flash gear except. If it's 480 or above . Technically they should all wear it on anything over 50volts. Common sense has been thrown out to. Some. Respect with this nfpa requirement.
If you violate a personal space boundary of another person, this is sexual assault or rape. Personal space must be respected. Ditto for boundaries regarding areas where arc flashes can happen. If you are not qualified to work on electrical equipment that has arc flash hazards, and you see that arc flash boundary tape, never, ever cross past that boundary tape under any circumstances! Absolutely no exceptions! Arc flashes are not jokes. They can badly burn, severely injure, shock, and/or even kill!!!
Please do not rely solely on CZcams videos for this training. To fully understand the requirements, review OSHA 1910 and NFPA 70e for up to date requirements including boundaries and personal protective equipment.
the flick on an unauthorized device to check the panels,
It's not relying on youtube, it's relying on "CED Central Industrial Division" and "CED Solution Consultant Network MCC Specialist Gene Reed". To not overgeneralize
What is the arc flash ratings of metal sheets based on material and thickness?
Nice video thanks
I'm pretty sure that dummy explosion is for a 277 480v system.
@g quin It's coming from the top.
@g quin That blast may or may have not come from 208.
I just find that blast to be pretty big for 208, so I gave my opinion about it being 277.
He explains how it's a bolted fault to ground i.e. they took a wire and stuck it on bare metal that has an equipment grounding conductor bonded to it; end result: arc blast.
The conduit you mentioned is coming, as I previously said, from the top into the Disconnect box.
Can arcs happen in 120v residential?
In residential panels absolutely.
In residential panels they are single phase (so two hots 240v) if you get a phase to phase fault you can get a nasty flash and or explosion
120 to ground isnt bad, but phase to phase can be quite nasty.
Why don't electricians wear arc flash gear except. If it's 480 or above . Technically they should all wear it on anything over 50volts. Common sense has been thrown out to. Some. Respect with this nfpa requirement.
If you violate a personal space boundary of another person, this is sexual assault or rape. Personal space must be respected.
Ditto for boundaries regarding areas where arc flashes can happen. If you are not qualified to work on electrical equipment that has arc flash hazards, and you see that arc flash boundary tape, never, ever cross past that boundary tape under any circumstances! Absolutely no exceptions!
Arc flashes are not jokes. They can badly burn, severely injure, shock, and/or even kill!!!
Why can’t they design these so you don’t have to get close to turn them on and off? How is this not a failure of engineering? Can someone explain?