Some Information about Power Surges and How You Can Be Protected From It
Today’s sensitive technology can be very susceptible to power surges that would create big problems. Different events could cause power surges, examples of which are lightning or a car hammering into a power pole. A lightning can deliver a surge able to blow up your equipment and thus it is considered as the most dangerous among possible surges. Imagine a lightning surges that can range to over 300,000 Amps, and this will cause some scenarios.
A direct effect is experienced when a lightning hits directly on a structure and its resulting energy would go its way to the earth through the structure.
During an indirect lightning strike, the effects are said to be more damaging since there is no direct visibility of its effect on the structure.
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It is said that many power surges are caused by people, with 60% of all surges and transients caused by industrial switching. Considered as the most spectacular is the lightning power surges which contribute to about 20% of power surges.
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Be informed some of manmade events creating power surges, and these are substation faults, internal failure in a plant that would extend to all areas in the factory, and inductive loads when motors, generators and compressors are switched on. Another event that would expose you to over or under voltage conditions and general interference would be being located at the end of the grid that will make you vulnerable to large voltage variance.
Natural conditions leading to power surges would be like the weather related events such as earthquakes, tremors and others. Other events can also be categorized with no real known cause of power surges.
Be aware that all surges and transients can have access to your machineries and equipment via power lines, data/signal lines, telecommunication lines, and poor earthing.
In the past, the usual advice to avoid power surges on our equipment is to disconnect it from the power source whenever we hear the sound of a thunder. Fortunately if you are at home and can detach your equipment from the power source, you can protect it around 20% of the power surge. It is good to know that we have now today very effective solutions that will provide surge protection for all equipment without detaching it from their power source, and these protection are surge diverters and surge filters.
Surge diverters, also known as shunt or parallel connected protector, is the basic form of protection that is designed to divert to the ground the large portion of energy from the incoming surge. The surge filters or also termed as series connected protector, is the method in which the incoming cable is cut and wired through the filter and thus having the filter reflect the load rating of the equipment. It is advisable to use surge filters on sensitive electronics to protect them.