Why Circuit Breakers DON'T Protect People
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Date: 2024-04-16
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Comments and reviews: 4
TheEulerID
The title is a bit misleading. True, MCBs do not protect people from fatal electric shocks. However, they do protect people from electrical fires due to overloads and, statistically speaking, electrical fires have been a much killer of people than electric shocks (particularly in the USA I should add, partly because of the way they build houses. To say that it is just there to protect property is simply not the case. Also, some MCBs are twin pole, although that's more an industrial and European domestic thing (at least in some countries.
However, excellent job at explaining how MCBs work, and especially the dual-mode switching and why it's done that way.
I note, there is still no mention of RCBOs. Those dual RCD consumer units are, thankfully, rapidly being confined to history and many electricians will no longer quote for split RCD CUs, and I'm a bit surprised that the regulations still allow them. Of course, then we come onto a far more contentious point, which as AFDDs.
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The title is a bit misleading. True, MCBs do not protect people from fatal electric shocks. However, they do protect people from electrical fires due to overloads and, statistically speaking, electrical fires have been a much killer of people than electric shocks (particularly in the USA I should add, partly because of the way they build houses. To say that it is just there to protect property is simply not the case. Also, some MCBs are twin pole, although that's more an industrial and European domestic thing (at least in some countries.
However, excellent job at explaining how MCBs work, and especially the dual-mode switching and why it's done that way.
I note, there is still no mention of RCBOs. Those dual RCD consumer units are, thankfully, rapidly being confined to history and many electricians will no longer quote for split RCD CUs, and I'm a bit surprised that the regulations still allow them. Of course, then we come onto a far more contentious point, which as AFDDs.
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Frost_smitten
Umm. First
Since I am first and you might actually see this comment I'd like to thank you real quick since your videos have been instrumental to helping me figure things out at the start of my HVAC career.
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Umm. First
Since I am first and you might actually see this comment I'd like to thank you real quick since your videos have been instrumental to helping me figure things out at the start of my HVAC career.
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engineering_mindset
The fact that you replied to my comment from 3 years ago and gave a link to this video was a nice gesture. I appreciate it
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The fact that you replied to my comment from 3 years ago and gave a link to this video was a nice gesture. I appreciate it
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smarteth4342
I really love your videos. you made me more attached to the electrical concepts. thank you so much with much respect.
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I really love your videos. you made me more attached to the electrical concepts. thank you so much with much respect.
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