Comment on Home renovations
one_knight_scripting@lemmy.world 1 day ago
Disagree. DC current will seek the path of least resistance, and will not go down the pole.
I’m unsure if this is an apartment, but I would start by reaching out to the landlord and say your lights have been acting up whenever they are using it. Maybe say your electric bill has been higher, maybe stage that a little bit by simply leaving a light on for a month. Have them inspect the floor damage too.
Once they leave, I would install cannibalize a power cable, plug it into the wall and hook the hot wire up to one of the screws.
The benefit of using AC, is that it is less likely to take the path of least resistance and travels as waves back and forth, doesn’t necessarily matter if they are grounded or not, they will feel it, likely marginally lower since it is also going into everything their 8ft pole is touching.
…I don’t know why I’m on a villain arc this morning.
Rhis is so much bullshit… car batterie wont do shit because
Do yourself a favor, don’t ever touch a car battery. It will hurt and you will feel it. They show that in movies as torture for a reason. It’s not the voltage in this case, it’s the current. Those batteries are capable of 550 CCA (cold cranking amps). Warm that battery is 685 CA. In fact I think I would consider the car battery more dangerous.
In alternating current the electrons move back and forth across the material similar to a wave striking the shore of a tropical beach… No one said anything about reflecting. Have you never been shocked by an outlet? Shoot, I grew up in a trailer with a short on the front door. If you touched the metal, it wouldn’t even hurt, but you’d certainly know.
I am an electrical engineer i have touched plenty of 12v and 24v… If movies are you source for eletrical safety then yoi are a idiot…
Current has nothing to do with that because it doesnt matter that your car battery can supply 100 100000 or 10000GA 12V will not be enough to make a significant current flow through you because your skin and body resistence is way to high… basic like 6 grade physics with current=voltage/resistance (yea i know body is not purly resitive etc but its good enough) whoever said voltage doesnt kill but current does was a idiot… neither does its a combination of a bunch of factors that matter…current voltage time frequency etc…
I dont even need to write something for point 2 because you have shown to not know basic understanding about dc circuit analysis…wtf
Hahaha. Ok, I thought you were a young child because you spelled battery differently and your take on everything I said the first time seemed childish. I told you not to touch a car battery because I thought you were a child. I still wouldn’t personally touch it, but that’s not what’s funny. You are NOT an electrical engineer. YOU ARE A STUDENT, lmao, I thought you might be a child and I wasn’t far off.
Your German, correct? I fixed aircraft in Germany, and you are only a student. Ever work on 115 VAC @ 400Hz 3 Phase? Ever work on C-130 avionic systems? What about B-1’s?
There is actually a lot of stuff I miss about Germany, too. Döner Kabob… God I miss those, they were my favorite. Oh and the German ice cream. Also the beer… I miss a good Dunkel. Keep studying you’ll be an electrical engineer soon.
o7
I’ll be assuming the pole is not grounded (electrically isolated from Earth, the earth pin of sockets, radiators, plumbing etc.)
The difference is not DC vs AC but between it being connected across two screws, for which a high current source (hundreds of amps at negligible voltage) will heat the metal up - as opposed to connecting a voltage (like 120V mains for AC or 170V single-diode-rectified & smoothed mains for DC) referenced to ground to the pole. The former will draw a lot of current from the source through the screws and metal between them, heating it up. A car battery could briefly deliver hundreds of amps and several kW, making them glow red hot. The latter will create a potential between the pole and ground, which will only draw current when a load is connected between the pole and the ground. For AC, a person’s body’s capacitance to ground, even with insulating shoes, is enough to feel a tingle. For AC or DC of sufficient voltage (above 60 V), they will get a shock if they touch ground and the pole, completing the circuit.
Step one of leaving a light on for a month might be a big hole in this plan those days. Electricity diff would be like a dollar or 2 at worst because bulbs are like 12 watts now. If the temperature went up by a couple degrees one day the AC would make it fluctuate more than that and you wouldn’t even notice on a bill
thewebroach@lemmy.world 13 hours ago
Small correction- AC power doesn’t “travel in waves”. It just oscillates up and down with respect to its reference, and same with its current with respect to its impedance. Just looks like a wave if you look at its position over time.
With a completed circuit with low impedance, it would trip your breaker. With completed circuit with large enough impedance to not trip breaker, it might burn your apartment down in a number of ways. Could also kill neighbor if they are somehow making a return path, as current disrupts your nervous system where once they get caught in the shock they lose control of their muscles and are held in the current unable to let go, electrocuting them until death. If insulation is high enough to effectively be an open circuit, your neighbor on the pole wouldn’t know it was electrified in the same way a bird sitting up on a power line doesn’t have a clue its anything but a normal wire in the air. Largely depends on how the pole is installed and if its touching any metal or electrical wires where it is mounted on top, bottom, or both. Also if neighbor is ground level or if another apartment beneath them. A lot of variables create.a lot of possible outcomes.
Would not recommend, lot of risks with little to no chance of any reward