Since its creation in the 1970s, which began as a patent for Zap Trap under the pleasant name, surge maintenance equipment (SPD) has become essential in many lightning protection systems (LPS).
Surge maintainers are now used in electrical installations to avoid transient overvoltages (also known as voltage spikes) that damage equipment and sensitive components, all of which are simply affected by power surges, which can be natural (lightning) or man-made (overloads or switches).
Modern SPD surge maintainers can be used in a variety of ways:
1. It can supply and serve the equipotential connection, reducing the risk of flashover when the current is injected into the ground
2. Ability to reduce instantaneous energy from direct or indirect bright light entering the service into the facility, and maintain internal electrical and electronic equipment
3. A simple way to remember these functions is that Delixi SPD surge maintainer is used to maintain equipment, and RCD is used to maintain personnel
So when should SPD surge maintainers be used?
As already mentioned, SPD is nothing new, and the concept of mine protection is not new. Consider the SPD and its application in today's world. However, is there a requirement to use surge maintainers in all installations?
Although there are more lightning in society nowadays, people now pay more attention to the use of SPD surge maintainers, and planners or installation personnel should consider whether it is necessary to avoid the maintenance of transient overvoltage during lightning strikes. The device should be functional, useful and safe at all times. Because SPDs are not completely safe, it is important to choose the right surge maintainer according to the actual situation.
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