Communal systems need to be connected to an earth connection for safety, but some aren’t, especially older systems that weren’t installed correctly. The chances that the cables will give you an electric shock are still low but don’t take any unnecessary risks. Combine this with the TV equipment, amplifiers, etc., and the voltage will start building up in the cables. Communal systems can be connected to 50 or 100 homes with that many or more TV systems. How does it work with communal TV systems?Ĭommunal systems feed multiple TV systems instead of only one or a couple in one house. If you can, turn off the satellite dish or disconnect it from the receiver so that the current isn’t live in the cables while you work on it. ![]() More than likely, you still won’t be harmed by the current, but you should take precautions so that you don’t fall. You’re probably standing on a metal ladder or holding something metal when it happens. However, you might feel a current when you’re connecting cables at the satellite dish, which is relatively common. The voltage is higher than passive TV cables, but it is still low enough that it will not cause any harm if you touch it. To that end, a continuous, direct current (DC) voltage is fed to the receiver to power the LNB. The signal needs to be amplified by the satellite LNB before it goes to your TV receiver. A satellite dish has a different current because the signals coming down from the satellites are received at low levels. Many people have a Sky box or TV with an integrated satellite TV tuner. Satellite dishes work differently from aerials in that they get their signals from satellites in Earth’s orbit instead of waves in the air. Can you get an electrical shock from satellite dish coax cables? Most aerials can’t get enough signal to do any damage if you touch them while they’re live. If you touch the live current coming from most aerials, you likely won’t feel it, and it won’t cause you harm. The voltage coming from a coax cable from your TV aerial is very low. Through this process, the cable is using alternating current electricity, a higher frequency than your mains electrical supply.ĭon’t let this scare you away, though. TV aerials work by capturing radio waves from the air and transmitting them through a coaxial cable down to your television set. Does your TV aerial cable carry current?īy their very nature, aerial cables carry a current. If you’re not sure that you can splice the coax cable correctly or safely, always consult with an electrician. ![]() If you’re not sure whether your coax cable is live, always make sure you turn off the electricity to be safe, or use a local aerial company to do it for you. It’s possible to cut or splice your coaxial cable to make a longer cable that reaches your TV receiver, but what are the chances that you’ll get an electric shock? Splicing cables is delicate work and requires precision and following proper procedures, but almost anyone can do it safely.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |