耐火母線廠家認為在許多大型建筑或重要建筑中，除了正常的供配電外，還配備柴油發(fā)電機作為應急電源。一旦電網供電線路出現(xiàn)問題或建筑物發(fā)生火災導致市電跳閘斷電，需要柴油發(fā)電機組發(fā)電臨時供電，以保證重要工作不會停止，或保證疏散照明指示人員疏散方向。柴油發(fā)電機發(fā)出的電需要經過變電站內的一些低壓配電柜，饋給需要應急電源的用電設備。柴油發(fā)電機和變電站低壓配電柜需要耐火封閉母線連接成一個綜合供電系統(tǒng)。

Fire resistant busbar manufacturers believe that in many large or important buildings, in addition to normal power supply and distribution, diesel generators are also equipped as emergency power sources. Once there is a problem with the power supply lines of the power grid or a fire occurs in a building, causing the mains power to trip and cut off, a diesel generator set is needed to generate temporary power to ensure that important work does not stop or to ensure that evacuation lighting indicates the direction of personnel evacuation. The electricity generated by the diesel generator needs to pass through some low-voltage distribution cabinets in the substation and be fed to electrical equipment that requires emergency power supply. Diesel generators and low-voltage distribution cabinets in substations need to be connected with fire-resistant enclosed busbars to form a comprehensive power supply system.

耐火母線廠家認為因為耐火封閉母線不僅在電網或線路出現(xiàn)問題時作為應急供電線路使用，在發(fā)生火災或其他災害時也作為輸電線路使用。因此，耐火封閉母線必須能夠保證高溫下的正常傳輸。當環(huán)境溫度達到700以上時，電源也能保證運行1.5小時以上，不會因環(huán)境溫度升高導致內部絕緣下降而出現(xiàn)線間短路的現(xiàn)象。

耐火母線廠家認為封閉母線由載流導體、外殼和絕緣材料組成。母線外殼應采用具有足夠機械強度的優(yōu)質冷軋鋼板，防護等級為IP55。載流導體應采用符合GB5585.1-5585.3標準的電氣用銅材，導體觸頭接觸面經過特殊處理，使連接部位接觸可靠，發(fā)熱低，使用安全可靠。保溫材料應具有良好的絕緣性能、抗老化、低煙等性能指標。

封閉母線分兩種。一種封閉母線載流量大，但只能在200下工作，一般安裝在輸送市電的線路上。這種母線也叫密集封閉母線。另一種封閉式母線可以耐高溫。一般能在700 ~ 1000的環(huán)境溫度下維持輸電運行1.5小時，載流量可達5000A，這種封閉母線稱為耐火封閉母線。

耐火母線廠家認為耐火封閉母線與密集型封閉母線的區(qū)別在于外殼部分。耐火封閉母線的外殼涂有一層防火涂料，而致密封閉母線表面噴塑，平整，防腐層附著力強。因此，消防線路和應急供電線路設計采用母線時，均采用耐火封閉母線。耐火封閉母線安裝時需要的空間較大，轉彎不方便，但安裝時附件較少。同時，耐火封閉母線可以防止小動物的傷害，安裝后方便以后的運行維護。

以上就是關于耐火母線的一些知識點，希望大家可以認真學習了解相關知識，選擇合適自己需求的產品和設備。

The manufacturer of fire-resistant busbars believes that fire-resistant enclosed busbars are not only used as emergency power supply lines in case of power grid or line problems, but also as transmission lines in case of fires or other disasters. Therefore, fire-resistant enclosed busbars must be able to ensure normal transmission at high temperatures. When the ambient temperature reaches 700 or above, the power supply can also ensure operation for more than 1.5 hours without the phenomenon of line to line short circuit caused by the decrease in internal insulation due to the increase in ambient temperature.
The manufacturer of fire-resistant busbars believes that enclosed busbars are composed of current carrying conductors, shells, and insulation materials. The busbar casing should be made of high-quality cold-rolled steel plates with sufficient mechanical strength and a protection level of IP55. The current carrying conductor should be made of electrical copper material that meets the GB5585.1-5585.3 standard. The contact surface of the conductor contact should be specially treated to ensure reliable contact at the connection point, low heat generation, and safe and reliable use. Thermal insulation materials shall have good insulation performance, anti-aging, low smoke and other performance indicators.
There are two types of enclosed busbars. A type of enclosed busbar with a high current carrying capacity but can only operate at 200 hours, usually installed on the transmission line of mains electricity. This type of busbar is also called a dense enclosed busbar. Another type of enclosed busbar can withstand high temperatures. Generally, it can maintain power transmission operation for 1.5 hours at an ambient temperature of 700~1000, with a current carrying capacity of up to 5000A. This type of enclosed busbar is called a fire-resistant enclosed busbar.
The manufacturer of fire-resistant busbars believes that the difference between fire-resistant enclosed busbars and dense enclosed busbars lies in the shell part. The outer shell of the fire-resistant enclosed busbar is coated with a layer of fire-resistant coating, and the surface of the sealed enclosed busbar is sprayed with plastic, which is smooth and has strong adhesion to the anti-corrosion layer. Therefore, when designing fire protection lines and emergency power supply lines using busbars, fire-resistant enclosed busbars are used. The installation of fire-resistant enclosed busbars requires a large amount of space and is inconvenient for turning, but there are few accessories during installation. Meanwhile, fire-resistant enclosed busbars can prevent harm from small animals and facilitate future operation and maintenance after installation.
The above are some knowledge points about fire-resistant busbars. We hope that everyone can study and understand the relevant knowledge seriously, and choose products and equipment that are suitable for their own needs.