浅谈电缆与母线槽应用比较-苏博滑触线

浅谈电缆与母线槽应用比较-苏博滑触线

1、母线槽分接方便：所谓插接式母线槽，就是它利用插接的方式把主干线的电源分接到支线去，因此分接十分方便。
1, bus duct tap is convenient: the so-called plug-in busbar, is it by inserting the way to supply branch to branch to trunk line, so the tap is very convenient.
      预制分支电缆其缺点是要向工厂定制；其分支连接方式采用开口的“C"型抱箍，时间一久，能否保证紧箍力？加上每一个分支头的价格不菲，因此预制分支电缆至今应用面仍不广。任何一个楼面需要切断电源，母线槽无须断电，只要在空载的情况下，取下母线槽的插接箱即可。但要切断预制分支电缆的分支电源，在带电的情况下操作是十分危险的。
Prefabricated branch cable and its shortcomings are to factory; the branch connection mode is adopted in the opening "C" type hoop, a long time, can ensure the confining stress? Plus each branch head is expensive, so the prefabricated branch cable has the application surface is still not widely. Any one floor to cut off the power supply, busbar without power, as long as under no load, remove the busbar inserting box. But to branch off the power of prefabricated branch cable, is a very dangerous operation in the charged situation.
      2、母线槽过载能力强：母线槽过载能力强，取决于它用的绝缘材料工作温度高，母线槽用的绝缘材料过支采用工作温度为105℃的材料，现已开发出工作温度为140℃以上的辐射交联阻燃缠绕带（PER）和辐射交联聚烃热收缩管。而电缆所用的绝缘材料常期工作温度一般为95℃和105℃，因此母线槽的过载能力远远大于电缆。
2, strong overload capacity: busbar busbar strong overload capacity, depending on its high working temperature with insulating material, insulating material for busbar through the support adopts the working temperature of 105 DEG C material, has developed a working temperature of radiation crosslinked flame retardant 140 DEG winding belt (PER) and radiation crosslinking poly hydrocarbon heat shrinkable tube. The insulating materials often used in the working temperature of cable is generally 95 degrees and 105 degrees, so the overload capacity is far greater than the cable bus groove.
      3、母线槽能防止过载失火：2000年8月27日，多灾多难的俄罗斯的莫斯科奥斯坦金诺电视塔——*二、欧洲*高楼燃起冲天大火。其原因是电缆过载引起的；宝钢三只转炉停产，也是电缆失火引起。
3, the busway can prevent the overload of fire: August 27, 2000 be dogged by bad luck, the Russian Moscow Ostankino tower -- the first high-rise world second, Europe lit a roaring fire. The reason is the cable caused by overloading; Baosteel three converter production, but also caused by cable fire.
      普通电缆的绝缘层和外皮会燃烧，阻燃电缆在火焰下也会燃烧，只有在火焰离开后才不燃烧，耐火电缆不会燃烧，但价格昂贵，只有消防等不准停电的电源才用耐火电缆。
The insulating layer and the skin will burn the common cable, flame-retardant cable will be burning flame also, only in the flame left don't burn, fire-resistant cable will not burn, but the price is expensive, the power outage only fire is allowed with only the fire-resistant cable.
      母线槽外壳是钢制的，不会燃烧，即使铜排的绝缘材料发生燃烧，火苗也不会窜到母线槽外面。
The busway shell is made of steel, not combustion, even if the insulating material of copper bars have burning, flame will not be outside channeling to busbar.
      4、母线槽散热性能好：电缆的绝缘材料（芯线绝缘和外皮绝缘）既是绝缘材料，又是隔热材料，因此电力电缆在桥架内敷设时，zui多允许敷设2层，其原因日考虑散热。
4, bus bar slot radiating performance is good: the insulation material of cable (core insulation and sheath insulation) is an insulating material, and heat insulation material, so the power cables in the bridge in laying, allows a maximum of 2 laying layer, the reason Japan consider heat.
      母线槽利用空气传导散热，并通过紧密接触的钢制外壳，把热量散发出去，因此它的散热性能和电缆相比，电缆散热性能可见一斑了。
Busbar using air heat conduction, and the steel shell close contact, radiates the heat, compared it heat dissipating performance and heat dissipation performance of cable, cable can be seen.
      5、母线槽维护方便：母线槽几乎不必维护，日常维护通常是测量外壳和穿芯螺栓的温升、进线箱的接头温升等，穿芯螺栓若采用4.8级，则需要定期紧固，若采用8.8级的高强螺栓则不必定期坚固。
5, the busway convenient maintenance: busbar practically no maintenance, routine maintenance is usually the inlet box rise, enclosure measuring and penetration bolt joint of the temperature and temperature rise, wear bolt if using 4.8 level, require regular fastening, if the use of high strength bolt 8.8 class need not be regular solid.