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If you have invested in high-quality audio and video components, you should still always also thought to protect your system against lightning and surges. Such damage can in the Thousands go and are usually not of the usual household or residential building insurance cover. This insurance usually only liable for direct lightning: fire, singeing and debris damage. Electronic devices but mostly by high voltage in the power line beschädigt.In such cases only a special low power electronics and insurance help. This is designed more for the commercial sector and therefore for households usually prohibitively expensive.
Here first some information on lightning and surge protection: An analysis is
down the Württembergische Versicherung AG in 1998 that about 30% of all damage to electronic equipment from Over-voltages or electrostatic current spikes caused. These are by far the most common causes of damage, according to a show of more than 7,700 claims in 1998 in Germany. It could be concluded that the electronic "pulse killer" far more often lead to defects and failures, as operator error and negligence.
overvoltages first hit the sensitive parts of the system. The tiny electronic circuits on circuit boards, motherboards, and in D / A converters from a CD or DVD players, amplifiers, the digital receiver, TV, subwoofer u.sw. can not cope with additional power and voltage spikes. The electronic components overheat and become inoperable. Not always, this means a total failure of the component. One consequence may be a more or less distinct sound or image disturbance. It is in such cases, the cause can not later prove beyond reasonable doubt and an electronic insurance does not access.
The best known cause of surges is the direct or indirect lightning strike. When lightning strikes can in a radius of up to 3 kilometers of dangerous overvoltages occur for electronic devices. More Surge sources include large appliances, lifts, welding machines, washing machines, etc. is uncertainty in many People about possible dangers and consequences of lightning strikes. When a lightning rod installed on the roof, many people consider the protection of their audio and video components to be unnecessary. But this is a misconception that can have costly consequences if damage has occurred due to excessive supply voltage.
to safeguard it from damaging surges and electrostatic current peaks can be achieved by using specially-equipped power strips, which are used between power supply (wall outlet) and device use. One should also include low-voltage connections such as typically the antenna connection in the protection program. These connections are with potential over-voltage vectors, which in the case of a case lead to large economic damage and even total loss.
Responsible for content: Detlev Schnick, © Copyright 2008 HIFI CONTROL
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