Message from @Spanners
Discord ID: 609535596611764242
It's dangerous to *you* because the lineman will come and kick your ass after he changes his pants.
wouldn't he die?
I mean isn't there several thousand volts and amps running though electrical lines?
Not from your generator
Normally when a lineman is working, the power is either cut or he is thoroughly isolated. I'm talking about when he's working on otherwise unpowered lines, but someone nearby decides to hook up a gas generator
(which can still generate lethal electricity)
got it
I've heard that it's not voltage that kills, it's amps, is that true?
eh
it's both
lethality has to do with how much power can be delivered into your body (usually your heart)
the old saying "current kills" is a bit misleading, but a good one to remember
I heard it explained (and I'm not super savvy in electricity) that Voltage is like how much water is going through the pipe at a given time and Amps is water pressure of the pipe. So low V and high A is like a high powered water jet and high V and low A is like the ALS ice bucket challenge
Other way around
derp
Current is a measure of the flow of electric charges
i did take physics in college but switched majors and didn't need to take anymore science or math
I hated my physics courses. My professors were more interested in trying to pitch their research than teach the course
you mean they weren't taught my TA's?
It's split up into lectures by profs, and discussion sections led by TA's
It's supposed to work by having profs lecture generally on material (usually such lectures in my school are 1 or 2 hundred students) and then smaller discussion sections actually have you do practice problems
In reality, I had a professor spend the first hour of a 2 hour lecture talking about her research with lasers or some shit. This was a course mostly focusing on thermodynamics. Set the tone for the whole semester
@Spanners
> Powering a whole house with a generator (or Tesla) while the power is out is dangerous. If there is a lineman working nearby, the energy can run through the lines coming from the house and still deliver a shock.
That's why automatic grid isolators are a thing. It is evidenced by the fact that the neighbouring houses are dark. If they weren't isolated, they'd either get lit up, or the powerwall/generator would get overloaded and no one gets lit up - except the lineman
@Agent Smith I see what you're talking about - they speak about installing the switch that isolates your house from city power while you're on the generator. I'm sure other such devices exist and are being implemented into infrastructure. I was more talking about the scenario when a dingus who doesn't know about such safety measure decides to try and do something that results in the dangerous backfeed
My knowledge could also be out of date on the matter
I think the one they show is a manual one, but I've seen isolators that will only allow a house to be fed by one source, using electromagnets
Interesting. Do you have any idea how widespread they are? I doubt these come standard
plug the genny in and electromagnets disconnect the grid kind of thing
haven't heard of it in Australia, but I've seen them in US and UK videos
Does seem like the sort of thing to have if you plan on powering the house in a storm.
Most I've been a part of on that front is plugging the coffee maker into the genny while the power was out
I'm pretty sure these powerwalls have isolation built in
they probably also have phase sync like UPS's and grid-tie inverters do
Oh jeez, I hadn't even considered phase sync
That would also be an issue
Out of curiosity, what's coming out of your wall in Australia? I know Europe and U.S. are very different.
240v
my UPS says 231v