Dec 13 2007Power Cord Has Plugs All Along Its Length


This conceptual extension cord has plugs all over it, so you can plug things in at different lengths of the cord. It was designed by Wilson Song, and probably won't work. Feel free to chime in and explain why it won't work, or what it would take to make it plausible. Just because I have a lab coat on doesn't mean I work in an electrical lab and understand these things. No sir. Wearing this lab coat means I'm sneaking into the clinic to steal urine samples for a drug test I have to take this afternoon.

Extension Cord Extreme [yankodesign]

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Reader Comments

It probably won't work because those plugs are just flat pieces of black paper...

I don't know what kind of weird wide-prong plug standard that is, but it definitely is not compatible with my standard 110 volt tape deck and coffeemaker.

Oh I don't...because they have been around for a few years now...

@ 2 Someone's not well travelled...

Yeah, Yans (if that is your real name), way to not spend hundreds of dollars to go see new lands, meet new people, and get their plug specs. I mean, come ON, you don't know everything? You haven't been everywhere? You don't have the time or means to do it all? Pathetic.
At least Pants does, and is willing to share in the form of pointed insults. Easily interpreted really, provide you have spent a few months down south in the company of penguins - truly god's gift to elitism - frigid bitches don't even have plugs (just in case joey hasn't been down yet to find out).

As you add segments, the load on the first segment increases. So if you have five things each drawing 3A, the load on the first segment (from wall outlet to first outlet on cord) would have 15A running through it.

Same sort of thing caused a walkway to collapse in a midwest hotel a few years back...

^ Thing is, though, that he's accessing this site through means of the internet, and should be able to use that very tool to search for other information.

The above comment was intended towards Mr. joshort.

Actually, "Anonymous", this is quite possible. only in a series circuit would the first plug be drawing 15 amps if there were 5 loads drawing 3 amps of current. I am quite certain that anyone designing this electrical outlet system would set it up in a parallel configuration. Now, judging by your addition skills, I might assume that you understand how parallel circuits perform? If not, a parallel circuit will allow for each load to draw its own individual current, just as a surge protector/ power strip, and your houses electrical system works. From this we can deduce that this conceptual design will be functional.

For sakes christ, arguments get started by a power strip? Well, now at least I know who the very best person here is! What? I don't? Oh. Touche.

To add to boinsie's argument, you don't even need the internet. You only need to have been inside a Radio Shack and stumbled across a power converter.

"As you add segments, the load on the first segment increases. So if you have five things each drawing 3A, the load on the first segment (from wall outlet to first outlet on cord) would have 15A running through it.

Same sort of thing caused a walkway to collapse in a midwest hotel a few years back..."

Really, Well, how would that be different from pugging 5 things into a splitter on the end of the cord? The cord would be listed to carry whatever current the wire size allowed, just like any other cord. And I may not have heard about it, but how did a overloaded extension cord cause a walkway to collapse??

while it may be possible, it'd certainly be more expensive. you'd need to shield (in this case) 5 pairs of wires from each other in order to run parallel. not to mention probably a thicker casing than that thin-ass shit they got right there.

You don't need to run five pairs together, you need two conductors run from each one to the either, that's what it means to run it in parallel. They don't need to be big either 120VAC devices don't draw that much current. Electrically speaking it doesn't work any different from a regular power strip.

I don't understand what the huge freak out is about.

@ rallyprox

current adds in parallel, voltage adds in series. the most sensible way to wire it up is in fact parallel as you suggested, but it's because 1) voltage remains constant in parallel and 2) a series circuit would be open if there were not a powered-up device connected to each individual outlet along the cable. if you have 5 devices drawing 3 amps RMS each, then the total current drawn from the wall will be 15 amps RMS. most standard 120VAC outlets in the united states are rated for 15A max load. many are rated higher at 30A, especially where large appliances may be connected. 15A is plenty of current for most applications (that translates to about 1.8kW peak power)

Oh, and that hotel balcony that collapsed was in Kansas City. I remember it cuz it was like 10 minutes away. I didn't hear about any power strip collapse being involved, but the engineers and architects that worked on the design of the building were pretty much grilled alive.

Comment 1 wins for being the smartest. All the rest lose for trying to sound smart and arguing on a joke website.

they already have a plug like that, it has the one on the end and 2 along the lenth of it here is a pic

This isn't anything new. You can pick these up at Home Depot. My brother works construction and even has one that lights up at each plug.
Another cool geek-type site:

These comments make me sad.

really... i use this type of cabling almost every day for decor lighting. Commonly referred to as E-string. All that really matters is that the cable is high enough gauge to deal with the current flowing through it. we use 50 footers that are 12/3 and have no issues drawing close to 20A.

wouldnt the last plug on the end of the rope have a lot less power?
considering the first plug uses electrcity and the second moreso and third even more
and so on
by the time the electricity reaches the last plug wouldnt it be a lot less powerful??

If this device is electrically constructed like a power strip/surge protector then it will work. It should have a fuse or circuit breaker at the end that plugs into the wall to protect it from an overload. In general one should not plug in more appliances than one electrical circuit can handle. In the States the maximum for residential circuits is 15 amps. In Europe the maximum can be anywhere from 10 amps to 16 amps. Usually a hair dryer, microwave oven, or toaster would max out one circuit.

Alright... I didn't read every comment but I schemed through enough of them... All the people talking about running the cord in parallel instead of in a series circuit are mistaken... this concept does not apply to AC electricity (AC, like you would find in your house, means "alternating current". this means at a rate of about 80 times per second the electrical current changes polarity (direction)). Meaning, that it doesn't matter how many plugs you put down the cord, it is still going to work as long as the amperage rating of the breaker in your house is rated to less than the sum of all things hooked to the cord! This exact same principal is used in the power strip your computer is plugged into right now, the wall outlets that surround the room you are in and the lights you string onto a tree every December... The use of parallel vs. series circuits refers to DC electric (direct current), like in your car or in battery operated devices, which must be routed back to a common ground because it flows in a steady, constant current. My advice is for all the above people to stick to their expertise and try not to meddle in electricity anytime soon because honestly, you'll probably hurt yourselves... This is a great design although not a new concept :)

I agree that Parallel is the way to go (AC circiut - "Z - impedence") with this one mostly because if nothing was plugged in at the 1st recpt it wouldn't work(unless ther was a bypass switch in place of recpts not used) No one mentioned that because the plug is ovbiously not the american standard (thanks yans) we are NOT dealing with 110- 120 volts 60hz. When working with a higher voltage like the european 220 - 240 vac 50 Hz you do not need the same amount of push (ampperes). Less amps, smaller wire, less heat and more dangerous. Yeah the thing exists and works well

I just had to chime in to say that series circuits are not limited to DC voltage as the undergrad engineer would suggest. I can think of countless examples to the contrary. holiday lights that plug into a wall receptacle do not typically include a rectifier and are therefore limited to AC voltage. If the loss of one light causes several to go're looking at an AC series circuit.

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