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I have heard there are ways to use these to back feed power from a generator into a house’s system, at least on one breaker, but by definition that bypasses the breaker panel, and the only safe way to use your generator for your house is with a proper cutover installed by an electrician. I can think of literally no other use for one of these cords, except maybe fixing your fuck up if you install Christmas lights backwards.
So yeah, dumb, dumb idea.
This is all reasonably accurate. Source: electrician, who worked at a supply store for a while. I've had people ask how to make all kinds of stupid cords.
If you don't know what you're doing, don't fool with electricity
The problem is that people read a few things on the internet, think they're now suddenly domain experts, and do it anyway.
Oh I know.
I've talked to them.
Don't do it. If you haven't actually worked with an electrician for at least two or.three years, just leave the repairs and shit jobs for people like me.
If you can't explain why the white wire is incorrectly called a neutral in single-phase systems, don't touch it.
Unionized Kobold electricians. Hmm.
It also backfeeds the grid and can kill someone working on the lines.
This is the real issue and why you need a modern transfer switch. Lineman is working on the transformer on the pole, "it's fine we cut it off upstream and I checked" and BOOM anyway
I've heard the Christmas lights one before too, but I never got it. How do (American) Christmas lights work that you'd need one of these cords?
In North America, Christmas lights usually have a plug end and a socket end so you can connect multiple strings together in series.
If you accidentally put the plug end at the top of the tree, it might be tempting to try to buy or make one of these cords so you don't have to take the lights down and redo them.
It is as dumb and lazy as it sounds.
So if I understand it correctly, if you were to use this "solution", you'd leave live exposed prongs on one end of the lights, right?
Cause that would make it even dumber than I had imagined lmao
Yup. American Christmas lights basically ARE very thin extension cords with the bulbs (hopefully) wired in parallel. Back in the day they were pretty much all incandescent and in series, and a single burned out bulb meant everything went out and Junior got a joyous new holiday chore!
Yep. Exactly right.
There are voltage converters (230V<->120V) that have female connectors in both ends. So if DIY guys are playing with tech from other continents.
Any serious DIY person can just splice an extra male plug onto a cord faster than driving to the store and reading this sign.
I don't understand why it would have female on both ends?
Yeah. Makes no fucking sense
I searched that model number, and came up with a similar looking box that has a corded male end- implying that those two stickers are outputs.
Weird use case. Never underestimate the customer.