this post was submitted on 02 Feb 2024
517 points (99.1% liked)

Technology

58833 readers
4827 users here now

This is a most excellent place for technology news and articles.


Our Rules


  1. Follow the lemmy.world rules.
  2. Only tech related content.
  3. Be excellent to each another!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, to ask if your bot can be added please contact us.
  9. Check for duplicates before posting, duplicates may be removed

Approved Bots


founded 1 year ago
MODERATORS
 

Amazon could soon be on the hook for safety of third-party products it sells and ships — Government order could classify it as a distributor, potentially exposing it to more legal claims::undefined

you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 47 points 8 months ago (4 children)

Maybe then they'll stop selling male to male extension cords

[–] [email protected] 20 points 8 months ago (2 children)

What‽ Why would such a thing exist ??? 🤔

Testing your electrical panel? and how fast the firefighters are to get to your house?

[–] [email protected] 32 points 8 months ago (3 children)

Ob it's far stupider and more deadly: hooking up your personal little generator so you can backfeed electricity to your house during a power outage.

It's even more stupid and deadly than it sounds.

[–] [email protected] 11 points 8 months ago

RIP power company linemen who’ve checked the power’s cut off, ‘til somebody pulls that stunt

[–] [email protected] 4 points 8 months ago

this is sadly actually one of the largest use cases, it's called a dead-mans cable (for good reason) but it's how many northern residents run generators in the winter during power outages. Cheaper then running a bypass switch (which can easily be 300-500$ to buy plus install cost) by a huge margin. They just throw the main breaker prior to running the generator. It shouldn't be done but it happens more frequently then you would expect especially in the antiqued houses that may not even be up to code in the first place

[–] [email protected] 0 points 8 months ago (3 children)

Don't you need one of those to use your tesla as a house generator

[–] [email protected] 20 points 8 months ago

There's a specific process and kind of panel you need to back feed power into your home

Basically your panel needs to have it setup so that it can either be powered by the generator or the grid. 1 or the other but never both at the same time.

[–] [email protected] 4 points 8 months ago* (last edited 8 months ago)

Um, no. Normally you would use a regular male to female extension cable for that. Your electrical panel would have a male plug on the wall which is specifically wired up to safely provide power to your home.

[–] [email protected] 3 points 8 months ago (1 children)

teslas specifically don't generate electricity

what is going on in this thread?

[–] [email protected] 5 points 8 months ago* (last edited 8 months ago)

"As a" implies knowledge that it is not a generator but can effectively be used as one.

[–] [email protected] 4 points 8 months ago

"I ran my Christmas lights without paying attention, and now the plug is on the wrong end. Can I just have a male to male so I can feed them the wrong way?"

[–] [email protected] 9 points 8 months ago

Or adapters to plug a 30A device into a 15A receptacle

[–] [email protected] -2 points 8 months ago* (last edited 8 months ago) (1 children)

I've seen these used in low income homes where the basement electricity is paid by the landlord for coin operated washers. Then someone gets their electricity cut (lack of payment) so they use these cables to jump the outlets and steal electricity from the landlord.

The dude just went to a hardware store and bought an extension cable and a replacement plug head. Snipped the female end and added the male in like 5 minutes.

The only practical usage of those things is jumping a generator to a house during a blackout.

Edit: yes please bring on the down votes for me sharing a story about how the poor use these scary cables. Real nice.

[–] [email protected] 11 points 8 months ago (2 children)

And that "practical use" kills linemen.

[–] [email protected] 1 points 8 months ago (2 children)

I think the correct way to jump is to flip your main so you're disconnected. I'm probably talking out of my ass tho.

I don't own a generator nor have the need. Just basing this on what I've seen in the wild.

[–] [email protected] 3 points 8 months ago (1 children)

The more correct way is to install a switch that does that, so you can be connected to the grid or to the generator, not both. It's basically what you said, but it doesn't trust users to remember to do it correctly

[–] [email protected] 1 points 8 months ago (1 children)
[–] [email protected] 1 points 8 months ago

It does, there's even automatic ones so you can have the generator kick in after a second or two without power and shut off when the grid comes back up

I watched a video on it a week or two ago, I think the general term would be an interlock

[–] [email protected] 2 points 8 months ago

Yes, in theory that would work. But they actually make main disconnect switches for this in the event that the main breaker fails. It's a mandatory install in all grid tie electrical generator systems (including solar).

[–] [email protected] -2 points 8 months ago* (last edited 8 months ago) (2 children)

I keep hearing this as the "Reason" but never backed by anything that makes sense. I've never needed to jump my generator to my house, and don't particularly care to even in the event of "disaster" so don't attack me like I'm doing this...

If you successfully suicide jumper your generator to the grid. Wouldn't the collective load of all your neighbors stuff kill the generator? (eg bog it down to the point that it turns off? [if it has no breaker]) Also wouldn't the load of literally your whole neighborhood trip off the breaker in the generator(or in the panel)? Doesn't this leave it as the only "risk" is if you happen to turn on the generator as the lineman themselves are specifically holding a live wire with an active connection to a ground/neutral before the previous stuff can happen? Or only if they happen to isolate you and then you turn on the genny after? Wouldn't you agree that this last thing would be an incredibly rare?

And I can never find an article where a cable was determined to be the cause of an electrocution...

Now because the internet is the internet... I'm not advocating for using suicide cables... There's much easier reasons why this is a terrible idea (exposed live contacts being literally the primary one). But I just never understood the "lineman" argument with all the stuff that would have to go specifically "right" in order to do that kind of harm to a lineman.

[–] [email protected] 1 points 8 months ago

Look into it more. It's incredibly common, and the voltage from a small generator in your yard, yes in theory, could leak to neighbors. However electricity follows the shortest path to ground. So if your home is drawing it, you will basically prevent that leakage. If you do fire it up, but use nothing, you may partially leak current to your neighbors (and potentially be liable for damages if your little backyard Honda or generac has a power spike at some point)

And the danger to to the linemen doing repair isn't the voltage necessarily (house current of 120v is not remotely high enough amperage to cause instant death. You can stick a fork in an outlet and try it) it is that you may suddenly electrify lines they are working on while suspended. If you charge the line, maybe you shock them and they have an accident. Or worse, your charged line creates enough of a charge differential that during the repair the much higher voltage electricity they have not isolated yet may bridge the air gap because you've energized the "dead" side prematurely.

In reality, most electricians and linemen are careful of this because of this exact reason. But it did harm a few people before moron's use of these things became common knowledge. Prior to these kinds of cables being commonly marketed for this, a lineman could hop up and reconnect you faster because there was an assumption they had full control of the current pathways. Now that's a toss up. This isn't a recent thing either, but it's becoming more common.