{"id":37614,"date":"2022-08-22T09:22:06","date_gmt":"2022-08-22T07:22:06","guid":{"rendered":"https:\/\/at3w.com\/?page_id=37614"},"modified":"2025-11-05T15:53:53","modified_gmt":"2025-11-05T14:53:53","slug":"protection-power-frequency-overvoltages","status":"publish","type":"page","link":"https:\/\/at3w.com\/en\/smart-lightning\/protection-power-frequency-overvoltages\/","title":{"rendered":"Permanent Overvoltages"},"content":{"rendered":"

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Permanent
\nOvervoltages<\/h2><\/div>
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Protectors against permanent overvoltages act<\/span> by disconnecting the receiving facilities from the power supply network that suffers the overvoltage<\/span>, thus protecting the installations against its effects.<\/div><\/div>[\/vc_column_inner][\/vc_row_inner]
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Permanent
\nOvervoltages<\/h2>\n

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Permanent or temporary overvoltages are increases in potential of over 10 % of the nominal value of the power supply, which remain for several cycles or even permanently.<\/p>\n

They are a result of phase decompensation, which is usually caused by the neutral conductor breaking, its faulty connection or faults in transformer centres.<\/p>\n

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What damage can the permanent overvoltages<\/code> cause?<\/h2>\n

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Permanent overvoltages concerns mainly the power supply. The long duration of the overvoltage may cause the loss of service to electric and electronic connected equipment. This elevated voltage affects also the devices decreasing their service life and overheating them until causing irreparable damage or even fire.<\/span><\/p>\n

Permanent overvoltages may cause damage to the installation<\/a> and the electrical equipment.<\/span><\/p>\n

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Standardization<\/h2><\/div>
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Internationally, the application standard is EN IEC 63052:2022<\/strong> \u201cPower frequency overvoltage protective devices (POPs) for household and similar applications<\/em>\u201d.<\/p>\n

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Our Permanent Overvoltages
\nProtective<\/code> Devices range<\/h2>\n

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Selection guide<\/h2><\/div>
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This overvoltage guide is published to achieve a correct protection of any installation by choosing, just with a few questions, the proper Permanent Overvoltages Protective Device model.<\/p>\n