{"id":51416,"date":"2015-09-27T13:34:34","date_gmt":"2015-09-27T10:34:34","guid":{"rendered":"https:\/\/yilkomer.com\/bc-sinifi-alcak-gerilim-parafudru\/"},"modified":"2025-12-18T23:30:57","modified_gmt":"2025-12-18T20:30:57","slug":"class-bc-type-12-low-voltage-surge-arrester","status":"publish","type":"post","link":"https:\/\/yilkomer.com\/en\/class-bc-type-12-low-voltage-surge-arrester\/","title":{"rendered":"Class B+C (Type 1+2) Low Voltage Surge Arrester"},"content":{"rendered":"

Use of AG Surge Arresters in Lightning Protection Systems<\/strong><\/span><\/h2>\n

According to IEC 62305, the use of AG surge arresters is mandatory in systems with external lightning protection (lightning rods or Faraday cages). A lightning strike on our external lightning protection system can reach our electrical distribution panels via the down conductors, and potential damage can be prevented using Low Voltage Surge Arresters<\/a><\/strong><\/span>. Even if the building does not have an external lightning protection system, coupling effects from nearby strikes can affect the structure, making surge protection in distribution panels essential.<\/p>\n

\"\"<\/p>\n

Class B Surge Arresters<\/span><\/h2>\n

To protect against direct and primary effects of a lightning strike, a Class B AG Surge Arrester<\/strong><\/em> system must be installed. Class B AG surge arresters are tested according to the 10\/350 \u03bcs waveform and provide protection aligned with lightning characteristics.<\/p>\n

To protect against voltage fluctuations on power lines, harmonics, switching surges, fault currents, inrush currents of shock coils, motor start-ups, and HVAC control systems, Class C AG Surge Arrester<\/span><\/em> systems should be used.<\/p>\n

For product selection, supply, and detailed specification work, you can contact the expert team at Y\u0131ld\u0131r\u0131mdan Korunma Merkezi<\/strong>.<\/p><\/blockquote>\n

B + C Class Surge Arresters<\/span><\/strong><\/h3>\n

\"\"<\/p>\n

Product selection in our facilities proceeds with site survey and risk analysis. The distance between panels and the electrical characteristics of the installation directly affect product choice. In Turkey, 65% of surges are grid-originated while 35% are caused by lightning. Therefore, using B+C class surge arresters, which protect against both lightning and grid surges, is more appropriate than B class alone. While B class devices operate in 100 nanoseconds, Type 1+2 B+C products with modern compact designs can operate in 25 nanoseconds. Raycap AG Surge Arresters<\/em><\/strong><\/span> with VG technology combine varistor speed with gas discharge tube technology to allow multiple suppression cycles. Older B class surge arresters with only Spark Gap technology are slower and less sensitive. For instance, a B class arrester designed for 100 kA lightning pulses may be insufficient against a 5 kA grid surge, putting the system at risk. Therefore, B+C class surge arresters provide greater safety.<\/p>\n

B+C Class AG surge arresters, rated for 25, 50, and 100 kA 10\/350 \u03bcs and 8\/20 \u03bcs surges, are connected in parallel to the system and can be monitored remotely via warning contacts.<\/p>\n","protected":false},"excerpt":{"rendered":"

Use of AG Surge Arresters in Lightning Protection Systems According to IEC 62305, the use of AG surge arresters is mandatory in systems with external lightning [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":51418,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[193],"tags":[],"class_list":["post-51416","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general"],"yoast_head":"\nClass B+C (Type 1+2) Low Voltage Surge Arrester<\/title>\n<meta name=\"description\" content=\"Instead of using only Class B products, it is more appropriate to use Class B+C products that provide protection against both lightning and grid impulses. 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