{"id":848,"date":"2023-12-18T15:16:59","date_gmt":"2023-12-18T07:16:59","guid":{"rendered":"https:\/\/www.britecelectric.com\/?post_type=blog&#038;p=848"},"modified":"2024-09-05T16:39:56","modified_gmt":"2024-09-05T08:39:56","slug":"protection-measures-of-inductive-lightning-in-spc-exchange","status":"publish","type":"blog","link":"https:\/\/www.britecelectric.com\/pt\/blog\/protection-measures-of-inductive-lightning-in-spc-exchange\/","title":{"rendered":"Medidas de Prote\u00e7\u00e3o de Raios Indutivos em Troca SPC"},"content":{"rendered":"Power communication is an indispensable and important part of modern power system and one of the three pillars for the safe and stable operation of modern power grid. SPC Exchange is an important part of power communication network. Once a fault occurs, the loss caused is not only economical. On the other hand, what is more serious is the potential threat to the grid security. Therefore, it is particularly important to strengthen the security protection of the SPC Exchange.\r\n\r\nNow many units have installed SPC Exchange, and the main component of the SPC Exchange is the integrated circuit (IC). The IC\u2019s anti-interference ability is relatively low, and even the lightning electromagnetic pulse (LEMP) induced from the line can break down the IC components. Therefore, the SPC Exchange is prone to lightning accidents. The damaged parts are mostly relay boards, user boards, billing cards and power supply parts. Due to the high value of these motherboards, in order to reduce economic losses, some users have tried various methods to protect the switch, and even insured the switch with an insurance company, but the loss caused by the interruption of communication caused by lightning strikes is irreparable. Therefore, the lightning protection of the SPC Exchange is particularly important.\r\n\r\n<strong>A conex\u00e3o equipotencial do switch<\/strong>\r\n\r\nO objetivo da conex\u00e3o equipotencial do interruptor \u00e9 reduzir a diferen\u00e7a de potencial entre v\u00e1rios componentes met\u00e1licos e sistemas no espa\u00e7o onde a prote\u00e7\u00e3o contra raios \u00e9 necess\u00e1ria.\r\n\r\n<strong>A qualidade da constru\u00e7\u00e3o de instala\u00e7\u00f5es de prote\u00e7\u00e3o contra raios<\/strong>\r\n\r\nDe acordo com as disposi\u00e7\u00f5es relevantes do GB50057-94, o edif\u00edcio do SPC Exchange deve ter instala\u00e7\u00f5es para evitar quedas diretas de raios. Quando a altura do edif\u00edcio exceder 30m (prote\u00e7\u00e3o contra raios tipo 1), 45m (prote\u00e7\u00e3o contra raios tipo 2) e 60m (prote\u00e7\u00e3o contra raios tipo 3), os grandes objetos met\u00e1licos, como grades, portas e janelas na parede externa da altura acima devem ser conectados ao dispositivo de prote\u00e7\u00e3o contra raios. Al\u00e9m disso, a resist\u00eancia de aterramento dos raiosas instala\u00e7\u00f5es de prote\u00e7\u00e3o tamb\u00e9m devem atender aos requisitos das especifica\u00e7\u00f5es relevantes.\r\n\r\n<strong>A zona de prote\u00e7\u00e3o contra raios (LPZ) dentro do edif\u00edcio<\/strong>\r\n\r\nDe acordo com as disposi\u00e7\u00f5es pertinentes da IEC1312-1, o edif\u00edcio est\u00e1 dividido em 4 \u00e1reas: LPZOA, os objetos nesta \u00e1rea podem ser diretamente atingidos por um raio; LPZOB, os objetos nesta \u00e1rea n\u00e3o podem ser atingidos diretamente por um raio e o campo eletromagn\u00e9tico na \u00e1rea n\u00e3o \u00e9 atenuado; LPZ1, os objetos nesta \u00e1rea n\u00e3o podem ser atingidos diretamente por um raio e o campo eletromagn\u00e9tico na \u00e1rea pode atenuar; LPZ2 \u00e9 a \u00e1rea de prote\u00e7\u00e3o contra raios de acompanhamento. De acordo com o princ\u00edpio de zoneamento acima, o SPCA central deve ser colocada na \u00e1rea LPZ2 tanto quanto poss\u00edvel para reduzir o impacto do pulso eletromagn\u00e9tico do raio na chave.\r\n\r\n<strong>A localiza\u00e7\u00e3o da sala de troca do SPC<\/strong>\r\n\r\nThe location of the SPC Exchange room should be determined in combination with the terrain location and other factors. For high-rise buildings, the general practice is to set the room in the space below the 4th floor and above the first floor. In humid areas, it is not advisable to set up the room on the first floor.\r\n\r\nIn modern communication systems, a well-designed lightning protection system is critical to the safe operation of equipment, not just for SPC Exchange. To ensure the secure operation of the entire communication network, you must strictly follow the principles of comprehensive lightning protection and plan lightning protection from all possible routes.","protected":false},"featured_media":849,"parent":0,"menu_order":153,"template":"","meta":{"_acf_changed":false},"blog_category":[8],"class_list":["post-848","blog","type-blog","status-publish","has-post-thumbnail","hentry","blog_category-company-news"],"acf":{"des":"Power communication is an indispensable and important part of modern power system and one of the three pillars for the safe and stable operation of modern power grid. SPC Exchange is an important part of power communication network.","txt":"Power communication is an indispensable and important part of modern power system and one of the three pillars for the safe and stable operation of modern power grid. SPC Exchange is an important part of power communication network. Once a fault occurs, the loss caused is not only economical. On the other hand, what is more serious is the potential threat to the grid security. Therefore, it is particularly important to strengthen the security protection of the SPC Exchange.\r\n\r\nNow many units have installed SPC Exchange, and the main component of the SPC Exchange is the integrated circuit (IC). The IC\u2019s anti-interference ability is relatively low, and even the lightning electromagnetic pulse (LEMP) induced from the line can break down the IC components. Therefore, the SPC Exchange is prone to lightning accidents. The damaged parts are mostly relay boards, user boards, billing cards and power supply parts. Due to the high value of these motherboards, in order to reduce economic losses, some users have tried various methods to protect the switch, and even insured the switch with an insurance company, but the loss caused by the interruption of communication caused by lightning strikes is irreparable. Therefore, the lightning protection of the SPC Exchange is particularly important.\r\n\r\n<strong>The equipotential connection of the switch<\/strong>\r\n\r\nThe purpose of equipotential connection of the switch is to reduce the potential difference between various metal components and systems in the space where lightning protection is required.\r\n\r\n<strong>The quality of building lightning protection facilities<\/strong>\r\n\r\nAccording to the relevant provisions of GB50057-94, the building of SPC Exchange must have facilities for preventing direct lightning strikes. When the height of the building exceeds 30m (type 1 lightning protection), 45m (type 2 lightning protection) and 60m (type 3 lightning protection), the large metal objects such as railings, doors and windows on the outer wall of the above height should be connected to the lightning protection device. In addition, the grounding resistance of lightning protection facilities should also meet the requirements of relevant specifications.\r\n\r\n<strong>The lightning protection zone (LPZ) inside the building<\/strong>\r\n\r\nAccording to the relevant provisions of IEC1312-1, the building is divided into 4 areas: LPZOA, objects in this area may be directly struck by lightning; LPZOB, objects in this area cannot be directly struck by lightning, and the electromagnetic field in the area is not attenuated; LPZ1, objects in this area cannot be directly struck by lightning, and the electromagnetic field in the area may attenuate; LPZ2 is the follow-up lightning protection area. According to the above zoning principle, SPC Exchange should be placed in the LPZ2 area as much as possible to reduce the impact of lightning electromagnetic pulse on the switch.\r\n\r\n<strong>The location of the SPC Exchange room<\/strong>\r\n\r\nThe location of the SPC Exchange room should be determined in combination with the terrain location and other factors. For high-rise buildings, the general practice is to set the room in the space below the 4th floor and above the first floor. In humid areas, it is not advisable to set up the room on the first floor.\r\n\r\nIn modern communication systems, a well-designed lightning protection system is critical to the safe operation of equipment, not just for SPC Exchange. To ensure the secure operation of the entire communication network, you must strictly follow the principles of comprehensive lightning protection and plan lightning protection from all possible routes."},"_links":{"self":[{"href":"https:\/\/www.britecelectric.com\/pt\/wp-json\/wp\/v2\/blog\/848","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.britecelectric.com\/pt\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.britecelectric.com\/pt\/wp-json\/wp\/v2\/types\/blog"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.britecelectric.com\/pt\/wp-json\/wp\/v2\/media\/849"}],"wp:attachment":[{"href":"https:\/\/www.britecelectric.com\/pt\/wp-json\/wp\/v2\/media?parent=848"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.britecelectric.com\/pt\/wp-json\/wp\/v2\/blog_category?post=848"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}