Technical information

Technical Info

Comprehensive Solution

Malaysia, being close to the equator, has one of the highest records of lightning strikes amongst the countries in the world. Malaysian Meteorological Centre recorded more than 300 days of lightning in a year in certain parts of the country. Loss of human lives, costly equipment and important installations being destroyed or disabled by such incidences are being reported every year causing enormous lost and inconvenience.

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SPD Working Principle

LPS Surge Protective Device (SPD) are designed divert transient to ground and limit excess voltages. Although lightning impulses has the most destructive effect of transient voltage but the most common sources of transient voltage is by utility grid switching, electrical accidents, switching of large capacitor banks on utility line or loads from nearby industry. By incorporating LPS SPD into the power system, electrical and electronic equipment can be protected.

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Correct Application of SPD

In order to protect equipment from damage caused by transients on the AC power, Surge Protective Device (SDP) are commonly installed next to the equipment. Though it is convenient but it could also be very costly as every power point will require one unit. More importantly this arrangement may cause problem in Malaysia, Singapore, Brunei, Hong Kong and many other countries where the regulation requires Earth Leakage Circuit Breakers (ELCB) to be installed.

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Isolated Earth for LPS

It is quite often when lightning strikes the conventional lightning protection of a building, the building itself may not suffer any damage but equipment inside the building may face severe damage. Hence if lightning does not discharge to the building or the conventional lightning protection system, there will no equipment damage.

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