Most electronic equipment is definitely better protected against atmospheric display than a few decades ago, but this does not mean that they should be taken care of during a storm. Lightning, which will hit the energy line, can cause overvoltage, i.e. a rapid increase in voltage on the network. Thus, the devices can be connected to it. However, to reduce the risk of this threat during a storm, just disconnecting the TV from electricity is not sufficient.
Sony, explains what to do with the TV during a storm. One of the most famous electronics manufacturers has published a guide in which it presents what steps to take so that the equipment is not damaged. They indicate that It is also necessary to disconnect from the network other elements related to TV, including HDMI cables, antenna cables, as well as routers and decoders. They can also pass the tension and damage the TV.
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A good picture gives a 30/30 rule. According to it, after it Noticing lightning, if the thunder appears in less than 30 seconds, then the storm is very close and it is necessary to disconnect electronic equipment from electricity. This is how the rule also says when they can be connected to the power supply and it is 30 minutes after we hear the last thunder.
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There is no one in the house or apartment, and the storm has started, and the equipment was connected to the electricity? In such a situation It is worth considering using nombles against sudden voltage jumps. They are not reliable, because they may not withstand the voltage after lightning strike, but such an addition may be useful – especially since it is not expensive, it costs several dozen zlotys.
