Is it possible to run electrical appliances from the telephone socket?
Posted by Answers CommunityI've been puzzling over this and hope someone who's knowlegable about telephone lines can shed some light. I would appreciate serious answers please. Please do not hesitate to be technical if you have to, thanks!
Is it true that the telephone sockets in our house can actually supply enough electrical power to run appliances? If so, what is the typical load it can supply? Is there an chance that I can overload the telephone socket? What would be the consequence of overloading the telephone socket? Would it affect the whole neighbourhood's telephone network?
If using electrical apliances from a telephone socket were possible, then I have another question. So the electrical power from a telephone socket is not metered is it? If that were true, wouldn't I be able to run appliances using the telephone socket as a power source without paying for electrical bills? Would the telephone network company be able to register an unusually higher load on the telephone sockets from my house?
Please take my question seriously. The reason I'm asking is because I have come across electrical appliances being sold on the internet that is meant to be run from a telephone line. For example I came across a LED table lamp that runs from the electrical current of a telephone socket. If you don't believe me, just search google. Manufacturers really make such appliances that run from telephone sockets
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ok, you sound like you're trying to get some free power here.
If by appliances you mean stuff like microwave, kitchen appliances, etc, the answer is NO.
Yes, your phone line has a 48V difference in potential, but the current you can draw is very low. Definitelly not much more than a couple of small batteries. So you could probably run a few rather small gadgets from it, like maybe a baby monitor, or maybe a small radio, but nothing that requires more than a couple hundred miliwats. Notice, we're talking hundredths of a watt, so not even one watt. Your lightbulbs are between 40 and 100 watts. There's no way you could squeeze that much power out of a phone jack without frying something. Have you ever seen phoneline wires? they're tiny, they would not be able to support the kind of current you're talking about.
Can the phone company detect that you're stealing power? I bet they can, because when you use any of the power, that closes the loop and acts like the phone is off the hook. So obviously if they see you're leaving your phone off the hook all the time it will be pretty suspicious.
http://korea.maxim-ic.com/appnotes.cfm/appnote_number/1923
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I see you edited your original question. I would not consider an LED lamp an appliance. LED's draw so little power that I don't see any reason why that wouldn't work. But then again, that LED lamp isn't going to be bright enough to light a whole room.
So, yeah, you probably could run a few LEDs, but not any real appliances.