A surge protector is an appliance or device designed to protect electrical devices from voltage. Ec640 combining gdts and movs for surge protection of ac lines pdf. Pdf on the selection and installation of surge protection devices in. Pdf this paper presents a procedure of choosing an appropriate surge protective device for lowvoltage systems connected to an overhead line.
Siemens believes todays residential surge protectors come up short when protecting todays modern home filled with smart appliances and electronics. Lightning and surge protection basic principles 1 introduction rarely does the power of nature strike an observer more forcibly than the sight for the first time of a. Surge protection devices sil 1 2 3 mtl instruments. Pdf selection of surge protective devices for lowvoltage. Lightning and surge protection of modern electronic system ebb. In this brochure, you will gain an insight into the field of surge protection. The products concerned in this manual are surge protection devices which can be located in safe or hazardous areas of a process plant to guard against the direct and indirect effects of lightning, or other transient overvoltage, on the instrumentation and power signals. Typically service entrance spd panels or branch circuit spd panels that are connected on the load side of the service disconnect overcurrent device main service panel. Surge protective devices spd are used to protect the electrical installation, which consists of the consumer unit, wiring and accessories, from electrical power surges known as transient overvoltages. The basics of surge protection the basics of surge protection. This includes basic information on the topics of technology and electronics that applies to all of us. Stv 100k surge protective devices designed to protect sensitive.
Surge protective device s tv 200400k surge protective devices capable of handling the highimpulse, potentially damaging transients commonly found at the service entrance, distribution panels, and placement in the most severe exposure locations. Modern industrial, commercial, and residential life depend on the availability of. Pdf this paper provides a comprehensive guidance for the selection and installation of transient protection devices, especially in a. They are also used to protect sensitive electronic equipment connected to the installation, such as computers, televisions, washing machines. We dont just want to support you with convincing solutions, but also to be on hand with help and advice. With electrical infrastructure being the same as it was 50 years ago, todays modern equipment is more susceptible to surges originated from storms or distribution interactions. Surge protection devices spd recommending surge protection either at home or in the work place, nearly every electrical load is electronic infused. The inclusion of surge protection devices spds in the 17th edition of the bs en 7671 wiring regulations amendment 1 shows how far the complexity and concern for personal safety of modern installation has come. Modern buildings of reinforced concrete or brickclad steel frames may use the structural steelwork as part or all of the down. Yet, few developers seem to appreciate the fact that these devices are critically susceptible to both externally and internally generated voltage transients and. Classification and testing of surge protective devices 16 3. Surge protective devices spds protect sensitive electrical equipment. Function principle surge coming from earth protected spd spd surge is discharged by the spd spd surge protective device 20 u p.
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