Could A Fire Have Caused The Loss Of MH370? | 25 Amp Circuit Breaker

One of the most important rules ever: “Never underestimate your own stupidity.” Knowing perfectly well how to safely power down a circuit / appliance / machine is sadly not sufficient to actually do it, especially so if it has become a repetitive task and there are elements of distraction. If ones life is at stake, there should be check-lists written in stone, just like in aviation.

It’s the same with larger, more power hungry projects as well. [Nerd Ralph] has been running a mining rig for a few years now, and has learned just how important proper power supply management can be. His strategy involves using interlocks to ensure everything powers up at the same time to avoid feedback problems, running a separate ground wire between all GPU cards and the PSU and running the supplies at 220 for the NA folks.

It occurs to me that enormous subsidies have been expended to have put a handful of pure EVs on the road – still very expensive and not practical for a lot of people. I think a better carbon reduction bang for the buck wold be to incentivize PHEVs or even “conventional” hybrids.

https://en.wikipedia.org/wiki/Electric_shock#Factors_in_lethality_of_electric_shock If the current can be limited to Less than 30mA or less people should live, see the graph in the above link. This is much easier to achieve with lower voltages because the human body resistance is higher with lower voltage shocks ( https://en.wikipedia.org/wiki/Electric_shock#Body_resistance ).

These were obviously mistakes. I would never intentionally come into contact with HT from the anode cap.

Because a failure of the sort I have described will not be current limited. You’ll likely start a fire.

Technically it depends on the amount of resistance, effectively proportional to the amount of the conductor the electricity is able to pass through. With AC that means the skin effect comes into play but that’s a whole other bundle of fun math. With DC it’s essentially amps times volts.

NO. 10 ON A 50-A BREAKER: The data tag and the wiring of the air conditioner in Orr’s home, which includes a No. 10 wire on a 50-amp breaker.

I will state this categorically: No one should imitate this hack unless they have been properly trained as an electrician. Messing around with line power when you don’t know what you are doing (even if you think you do) is a recipe for death and disaster – literally.

The operation of the potential relay is based on the increase in back-electro-motive force (back-EMF) or a bucking voltage that is generated across the start winding as the motor increases in speed. The large metal mass of the motor’s rotor turning at high speeds with motor windings in close proximity has a voltage-generating effect.

1) If not breathing, give CPR. Electrocution has pretty good recovery rates if CPR is started right away.

LOL– I stepped into doo-doo deep enough to over top chest waders, I’m over six feet tall, so that’s deep doo-doo. First I was surprise to learn that the heated beds weren’t heated by line voltage, IMO that’s a no brainer. Appliances across the word use line voltage to produce heat with no shock hazard present when use properly. Getting back to the deep doo-doo. Hackaday does present instruction posts. Line voltage is useful resource that is avoided because of irrational fear. I’m calling irrational because the fear is due to ignorance. I suggest Hackaday create instructional post on how to use line voltage in a way that’s safe to life and doesn’t cause property damage when something goes wrong. Peer reviewed studies and guidelines information is preferred.