The best protection formula

LPS+SPD+GND+POP

Protection against lightning, surges and overvoltages not only ensures the safety of people, goods and equipment, but also ensures continuity of installation services and meet criteria of energy efficiency.

Overvoltage protection extends the life of the equipment by more than 20%, which significantly reduces the volume of electronic waste.  It also reduces the power consumption of the installations, all of which translates into cost savings and environmental sustainability.

For this reason, an effective system will consist of an external lightning protection system to capture and conduct the strike safely to earth  (LPS), surge protection devices (SPD) for the protection of electrical equipment, grounding system monitors (GND)  to discharge voltage surges to earth in a controlled manner, and power frequency overvoltage protection devices (POP) also known as TOV temporary or permanent overvoltage.

 

Lightning protection (by means of LPS Lightning protection systems)

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Lighting is one of nature's most destructive phenomena.At any one time there are about 5,000 thunderstorms around the world. Lightning density depends on the terrain and climate, which means it varies from one place to another and from one time of year to another. In Spain, for example, some two million lightning strikes fall to earth, killing a dozen people and hundreds of animals.

The effects of lightning pose a serious hazard to people, property, equipment and structures, and for this reason protection is essential:

Catastrophic consequences for peopleand animals (Electrocution and severe burns that might result in death)

Substantial financial losses:

• Damage to buildings. A direct lightning strike causes damage to structures (e.g. buildings, antennae, telecommunications, manufacturing and photovoltaic arrays).

• Fires

• Destruction of equipment / service interruption. An indirect lightning strike generates voltage surges which damage equipment connected to the electrical network, telephone network, Ethernet, etc.

 

 

Surge and overvoltage protection (by means of SPD + POP devices)

Electrical and electronic equipment is indispensable in the daily activities of today's businesses and individuals.

Such devices are connected to the electricity grid, often exchanging data and signals through communication lines and are usually sensitive to disturbances.

These interconnecting networks provide a propagation path for surges and overvoltages, which can cause serious problems to equipment connected to the line, from premature aging to destruction, causing disruptions to service and financial loss, not to mention current consumption excess or the resulting fire risk.

Surge and overvoltage protection is a very good investment in terms of extending the life of equipment, service continuity and reduced maintenance costs.

 

Transient overvoltage protection (by means of SPD surge protection devices)

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Transient overvoltagesare voltage surges reaching values of tens of kilovolts with a duration of microseconds.

This type of overvoltage can have various different causes, includingatmospheric lightning directly striking the external protection(lightning rod) on a building or transmission line or the associated induction of electromagnetic fields on metallic conductors. It is also common for non-weather phenomena, such astransformer centre switching or switching of motorsor other inductive loads to cause voltage spikes in adjacent lines.

Transient overvoltage is not exclusive topower distribution linesbut is also common in any line made of metal conductors, such astelephone, communication, measurement and data lines.

Los orígenes de este tipo de sobretensiones son diversos, como el impacto directo de descargas atmosféricas sobre la protección externa (pararrayos) de un edificio o sobre el tendido eléctrico, o como la inducción de campos electromagnéticos asociados a tales descargas sobre los conductores metálicos. También es habitual que fenómenos no relacionados con las condiciones atmosféricas, como la conmutación de centros de transformación o la desconexión de motores u otras cargas inductivas, provoquen picos de tensión en líneas colindantes.

Las sobretensiones transitorias no se producen únicamente en las líneas de distribución eléctrica, sino que también son habituales en cualquier línea formada por conductores metálicos, como las de telefonía, comunicación, medición y datos.

 

Power frequency overvoltage protection (by means of POP protectors)

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Power frequency overvoltages (POP) are any voltage increases above 20% of the effective nominal value for an indefinite period. Power frequency overvoltages are caused by supply problems, or, very often by bad connections or breakage of the neutral conductor. They can also be caused by anomalies in the power supply.

An increase in effective voltage may lead to premature aging of receivers, current increases or even their destruction, with the resultant fire risk.

 

A grounding system in proper conditions (by means of a GND grounding system monitor)

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Theresistance of the grounding is one of the most important parametersof the entire installation.

 

Grounding systems prevent contact voltages in solid metal from exceeding those permissible for people by allowing voltage leakage, and ensures correct and safe discharge of currents caused by voltage surges.

An electrical installation should be in optimal conditions to ensure safety. In case of grounding failure, the ground system installation helps protect people and equipment from harm and damage.

Having proper grounding and checking it regularly is very important. A ground in proper conditions avoids risk of death for people and destruction of property. A ground in proper conditions ensures protection against voltage surges.

A grounding system monitorchecks the grounding installation status in real timeand triggers a warning system if the installation is defective or deteriorated.