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電纜橋架接地注意事項是什麽?

眾所周知,電纜橋架主要是用於電纜鋪設,特別是石化企業,大多都是易燃易爆場所,所以選用電纜橋架進行電力傳送也需求做好接地作業,下麵飘雪电视电影网影院看看電纜橋架接地要注意什麽。
As we all know, cable trays are mainly used for cable laying, especially in petrochemical enterprises. Most of them are flammable and explosive places, so it is also necessary to do a good job in grounding when selecting cable trays for power transmission. Let's see what we should pay attention to when grounding cable trays.
1、沿電纜橋架全長另敷設接地幹線時,每段(包含非直線段)電纜橋架應起碼有一點與接地幹線可靠連接。
1. When another grounding main line is laid along the whole length of the cable tray, each section (including non-linear section) of the cable tray shall be reliably connected with the grounding main line at least at one point.
2、電纜橋架係統應具有可靠的電氣連接並接地(隻對金屬橋架)。
濟南電纜橋架
2. The cable tray system shall have reliable electrical connection and grounding (only for metal tray).
3、當允許利用電纜橋架係統構成接地幹線回路時應符合以下要求。電纜橋架端部之間連接電阻應不大於0.00033歐姆,接地孔應清除絕緣塗層。在1KV及以下中性點直接接地係統中,受電設備的接地與係統中性線接地相連。裝有處動切斷供電裝軒時,電纜橋架的級長方向金屬橫截麵積應不小於規定值。
3. When it is allowed to use the cable tray system to form the grounding trunk circuit, the following requirements shall be met. The connection resistance between the ends of the cable tray shall not be greater than 0.00033 ohm, and the insulating coating shall be removed from the grounding hole. In the neutral point direct grounding system of 1kV and below, the grounding of power receiving equipment is connected with the neutral line grounding of the system. When a power cut-off device is installed, the metal cross-sectional area of the cable tray in the level direction shall not be less than the specified value.
綜上所述就是對電纜橋架接地要注意什麽的介紹,希望能夠幫到大家。電纜橋架接地是非常重要的,不僅僅是為了飘雪电视电影网影院的生命財產安全,也是為了避免火災的發生。
To sum up, it is an introduction to what should be paid attention to in cable bridge grounding. I hope it can help you. Cable bridge grounding is very important, not only for the safety of our lives and property, but also to avoid fire.
 
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