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              發電機組的防雷要注意什么?

              返回 2023.07.12 來源:http://www.oyecy.com
              按國家標準規定,H-1級火災危險場所應屬于我、需進行防雷保護的第三類工業建筑物和構建物,因此一般在地面建筑的柴油發電站主廠房及輔助建筑物,包括排煙、供水建筑均采取防雷措施,進行防雷設計。對防直擊雷,應在建筑物和構建物易受雷擊的部位裝設避雷針或避雷帶。
              According to national standards, H-1 fire hazard areas should belong to the third category of industrial buildings and structures that require lightning protection. Therefore, lightning protection measures are generally taken for the main and auxiliary buildings of diesel power plants in ground buildings, including smoke exhaust and water supply buildings, and lightning protection design is carried out. For direct lightning protection, Lightning rod or lightning strip shall be installed at the parts of buildings and structures vulnerable to lightning.
              當采用避雷帶時,屋面任何一點距避雷帶不應大于10cm,防直擊雷地裝置的沖擊接地電阻不宜大于3,并應與電氣設備接地裝置及埋地金屬管道相連;接地裝置宜圍繞建筑物形成環形接地體,防雷裝置的引下線不宜少于2根,間距不應大于30m,為防雷電波沿低壓架空線侵入建筑物,在入戶處應將絕緣子鐵腳接到防雷及電氣設備的接地裝置上,進入電站的架空金屬管道在入戶處宜于上述接地裝置相連。
              焦化發電機組
              When using lightning protection strips, the distance between any point on the roof and the lightning protection strip should not be greater than 10cm, and the impact grounding resistance of the lightning protection device should not be greater than 3. It should be connected to the electrical equipment grounding device and buried metal pipeline; The grounding device should form a circular grounding body around the building, and the down lead of the lightning protection device should not be less than 2, with a spacing of no more than 30m. To prevent lightning waves from invading the building along the low-voltage overhead line, the insulator iron foot should be connected to the grounding device of the lightning protection and electrical equipment at the entrance. The overhead metal pipeline entering the power station should be connected to the above grounding device at the entrance.
              柴油發電機組燃油系統的防雷與防靜電接地:地上鋼儲油罐必須裝設防雷接地裝置,罐體四周應埋設閉合環形接地體,其接地點不應少于兩處,接地點沿油罐四周的間距不宜大于30m.當罐頂裝有避雷針或利用罐體作接閃器時,接電阻不應超過10;當油罐僅作防感應雷接地時,接地電阻不宜大于30,裝有阻火器的地上固定頂鋼油罐,當預板厚度大于或等于4mm時,可不裝設避雷針;當頂地上鋼油罐上的溫度,液位等測量裝置,應采用裝電纜或鋼管配線,電纜外皮或配線鋼管與罐體,應做電氣連接。地上或管溝內敷設的輸油管線的始端、末端、分支處以及直線段每個200-300m處,應設置防靜電和防感應雷的接地裝置。接地電阻不宜大于30,接地點宜設在固定管支墩處。
              Lightning protection and anti-static grounding of diesel generator set fuel system: the ground steel Storage tank must be equipped with lightning protection and grounding devices, and the tank body shall be buried with closed ring grounding body, with no less than two grounding points. The spacing of grounding points along the tank should not be more than 30m. When the tank top is equipped with a Lightning rod or the tank body is used as a lightning arrester, the grounding resistance should not exceed 10; When the oil tank is only grounded to prevent induction lightning, the grounding resistance should not be greater than 30. For the above ground fixed roof steel oil tank with flame arrester, when the thickness of the pre plate is greater than or equal to 4mm, the Lightning rod can not be installed; The temperature, liquid level, and other measuring devices on the steel oil tank above the ground should be equipped with cables or steel pipe wiring. The cable sheath or wiring steel pipe should be electrically connected to the tank body. Grounding devices for anti-static and induction lightning protection should be installed at the beginning, end, branch, and straight section of oil pipelines laid on the ground or in trenches at each 200-300m point. The grounding resistance should not exceed 30, and the grounding point should be set at the fixed pipe support pier.
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              發電機組的防雷要注意什么?

              按國家標準規定,H-1級火災危險場所應屬于我、需進行防雷保護的第三類工業建筑物和構建物,因此一般在地面建筑的柴油發電站主廠房及輔助建筑物,包括排煙、供水建筑均采取防雷措施,進行防雷設計。對防直擊雷,應在建筑物和構建物易受雷擊的部位裝設避雷針或避雷帶。
              According to national standards, H-1 fire hazard areas should belong to the third category of industrial buildings and structures that require lightning protection. Therefore, lightning protection measures are generally taken for the main and auxiliary buildings of diesel power plants in ground buildings, including smoke exhaust and water supply buildings, and lightning protection design is carried out. For direct lightning protection, Lightning rod or lightning strip shall be installed at the parts of buildings and structures vulnerable to lightning.
              當采用避雷帶時,屋面任何一點距避雷帶不應大于10cm,防直擊雷地裝置的沖擊接地電阻不宜大于3,并應與電氣設備接地裝置及埋地金屬管道相連;接地裝置宜圍繞建筑物形成環形接地體,防雷裝置的引下線不宜少于2根,間距不應大于30m,為防雷電波沿低壓架空線侵入建筑物,在入戶處應將絕緣子鐵腳接到防雷及電氣設備的接地裝置上,進入電站的架空金屬管道在入戶處宜于上述接地裝置相連。
              焦化發電機組
              When using lightning protection strips, the distance between any point on the roof and the lightning protection strip should not be greater than 10cm, and the impact grounding resistance of the lightning protection device should not be greater than 3. It should be connected to the electrical equipment grounding device and buried metal pipeline; The grounding device should form a circular grounding body around the building, and the down lead of the lightning protection device should not be less than 2, with a spacing of no more than 30m. To prevent lightning waves from invading the building along the low-voltage overhead line, the insulator iron foot should be connected to the grounding device of the lightning protection and electrical equipment at the entrance. The overhead metal pipeline entering the power station should be connected to the above grounding device at the entrance.
              柴油發電機組燃油系統的防雷與防靜電接地:地上鋼儲油罐必須裝設防雷接地裝置,罐體四周應埋設閉合環形接地體,其接地點不應少于兩處,接地點沿油罐四周的間距不宜大于30m.當罐頂裝有避雷針或利用罐體作接閃器時,接電阻不應超過10;當油罐僅作防感應雷接地時,接地電阻不宜大于30,裝有阻火器的地上固定頂鋼油罐,當預板厚度大于或等于4mm時,可不裝設避雷針;當頂地上鋼油罐上的溫度,液位等測量裝置,應采用裝電纜或鋼管配線,電纜外皮或配線鋼管與罐體,應做電氣連接。地上或管溝內敷設的輸油管線的始端、末端、分支處以及直線段每個200-300m處,應設置防靜電和防感應雷的接地裝置。接地電阻不宜大于30,接地點宜設在固定管支墩處。
              Lightning protection and anti-static grounding of diesel generator set fuel system: the ground steel Storage tank must be equipped with lightning protection and grounding devices, and the tank body shall be buried with closed ring grounding body, with no less than two grounding points. The spacing of grounding points along the tank should not be more than 30m. When the tank top is equipped with a Lightning rod or the tank body is used as a lightning arrester, the grounding resistance should not exceed 10; When the oil tank is only grounded to prevent induction lightning, the grounding resistance should not be greater than 30. For the above ground fixed roof steel oil tank with flame arrester, when the thickness of the pre plate is greater than or equal to 4mm, the Lightning rod can not be installed; The temperature, liquid level, and other measuring devices on the steel oil tank above the ground should be equipped with cables or steel pipe wiring. The cable sheath or wiring steel pipe should be electrically connected to the tank body. Grounding devices for anti-static and induction lightning protection should be installed at the beginning, end, branch, and straight section of oil pipelines laid on the ground or in trenches at each 200-300m point. The grounding resistance should not exceed 30, and the grounding point should be set at the fixed pipe support pier.
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