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| About Surge Protection |
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Surge damage is not always visible, or immediately acknowledged. Sometimes a series of surges over a period of time can degrade a system without any noticed loss of function, yet the system may continue to deteriorate to a point where even a slight fluctuation can result in complete system failure. As so many of our building systems are networked or integrated within one another this presents further potential problems, as a surge on a network may damage every element as opposed to just the first element it encounters.
It is essential to remember that external lightning protection systems, be they comprised of copper tape, or similar, are designed to channel the fault lightning current safely to earth. However, they cannot prevent fault currents being inducted through the electromagnetic field of the current into various power or data cables, or through other conductive elements. |
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| Surge Performance Requirements |
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There are three surge protection device classifications: Class I, for protection against direct lightning currents (which is a lightning current arrestor) which activates based upon a 10/350 microsecond current profile. Class II, for protection against indirect lightning effects (which is installed ‘downstream’ from the lightning arrestor) and it is based upon an 8/20 microsecond current profile. Finally there is a Class III surge protection device which is designed for protection against switching overvoltages or localized surges, its performance is based upon a 1.2/50 microsecond and 8/20 microsecond current profile. Some devices can serve as a combined class I and class II device, but it is always important to clarify their performance.
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| Surge Protection from FM Sudafix |
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As FM Sudafix is instantly recognised as an electrical safety seal of approval it is understandable why the marketplace looks to this company for all of its surge protection needs. Whether clients are seeking to protect against the threats of lightning fault currents, or to protect sensitive equipment or servers containing proprietary data, they are assured that FM Sudafix will provide the best solution to their critical performance requirements. Having been specified and installed on numerous projects FM Sudafix is the logical source for the surge protection needs of any facility or equipment. |
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