母线（母线槽）是由铜、铝母线柱构成的一种封闭的金属装置，用来为分散系统各个元件分配较大功率。在户内低压的电力输送干线工程项目中已越来越多地代替了电线电缆，普遍应用在：高层建筑的层间供电、厂房的平面配电、低压柜之间的联络、变压器连接端的进线系统。下面
济南电缆桥架厂家来进行母线PK电缆的优势总结。
A busbar (busbar duct) is a closed metal device composed of copper and aluminum busbar columns, used to distribute large power to various components of a distributed system. In indoor low-voltage power transmission trunk projects, wires and cables have increasingly been replaced, and are widely used in inter story power supply in high-rise buildings, plane power distribution in factories, interconnection between low-voltage cabinets, and incoming line systems at transformer connections. Next, the manufacturer of cable tray in Jinan will summarize the advantages of bus PK cable.
载流能力
Current carrying capacity
母线--大：250A～5000A
Bus - large: 250A~5000A
电缆--小：单根四芯电缆一般大580A
Cable - Small: A single four core cable is generally 580A larger
系统结构
System structure
母线--简洁清爽：线性设计、结构简单
Busbar - simple and refreshing: linear design, simple structure
电缆--错综复杂：回路较多，布线复杂
Cable - intricate: multiple loops and complex wiring
占用空间
Occupy space
母线--小：结构紧凑
Busbar - small: compact structure
电缆--大：约为母线槽的3-4倍
Cable - Large: Approximately 3-4 times the size of the bus duct
散热性能
Heat dissipation performance
母线--高：母线为密集型结构，外壳采用高导热性能的铝合金型材，散热方式为整体式热传导，热传导效率高，散热性能好。
Busbar - High: The busbar is of a dense structure, and the outer shell is made of aluminum alloy profiles with high thermal conductivity. The heat dissipation method is integrated heat conduction, with high heat conduction efficiency and good heat dissipation performance.
低：电缆的芯线绝缘和外皮绝缘材料散热性能差，在桥架内多层敷设时，散热性能更差。
Low: The core insulation and outer insulation materials of the cable have poor heat dissipation performance, and when laid in multiple layers within the bridge, the heat dissipation performance is even worse.
绝缘性能
Insulation performance
母线--高：130/180℃
Bus - height: 130/180 ℃
电缆--低：95/105℃
Cable - Low: 95/105 ℃
安全性能
Safety performance
母线--高：回路少、故障点少
Bus - high: fewer circuits and fewer fault points
电缆--低：单独敷设电缆，回路多，故障点多
Cable - low: laying cables separately, with multiple loops and multiple fault points
安装强度
Installation strength
母线--小：单节长度一般大不超过3米，安装省时、方便，安装成本低。
Busbar - small: The length of a single section generally does not exceed 3 meters, which is time-saving, convenient, and low in installation cost.
电缆--大：技术难度大、施工周期长、人为因素多、隐患点多。线路越长，施工难度越大。
Cable - Large: High technical difficulty, long construction cycle, multiple human factors, and multiple hidden dangers. The longer the route, the greater the difficulty of construction.
操作性能
Operational performance
母线--方便：可在就近位置的插接箱内操作
Bus - convenient: can be operated in the nearby plug-in box
电缆--烦琐：配电室的开关柜内操作
Cable - tedious: operation inside the switchgear in the distribution room
系统配置
system configuration
母线--简单：母线单元通用性、互换性强，所有零部件可以拆卸后重新组装使用；系统扩展既可以增加母线长度也可以增加分接单元（插接箱）。
Bus - Simple: The bus unit has strong universality and interchangeability, and all components can be disassembled and reassembled for use; System expansion can increase both the length of the bus and the number of tapping units (plug-in boxes).
电缆--复杂：系统扩展必须增加回路，电缆必须重新由配电室引至设备。
Cable - Complex: System expansion requires adding loops, and cables must be re led from the distribution room to the equipment.
使用成本
Cost of use
以一条1000米长800A的输电线路为例：
Taking a 1000 meter long 800A transmission line as an example:
母线与电缆对比总结：
Summary of Comparison between Busbars and Cables:
1、可满足大5000A额定电流；而电缆需多根并联。
1. Can meet the rated current of up to 5000A; And multiple cables need to be connected in parallel.
2、5000A LD母线截面仅为240x180mm，节约空间，而电缆需要很大的空间。
2. The 5000A LD bus section is only 240x180mm, saving space, while cables require a lot of space.
3、母线槽可在离设备近的位置进行控制，而电缆必须在配电室控制。
3. The bus duct can be controlled near the equipment, while the cables must be controlled in the distribution room.
4、母线配有标准的安装支架，无需其他支撑；电缆必须用单独的桥架或管道进行敷设。
4. The busbar is equipped with standard installation brackets, without the need for other supports; The cables must be laid using separate trays or pipelines.
5、母线槽寿命可达50年，并可重复使用。而电缆较短，不可以重复使用。
5. The service life of the bus duct can reach 50 years and can be reused. The cable is short and cannot be reused.
6、母线槽的分接口可增加分接回路，而电缆必须在配电室开始敷设。
6. The tapping interface of the busbar duct can add tapping circuits, and the cables must be laid in the distribution room.
7、安装母线的保险费用比较低，而电缆相对较高。
7. The insurance cost for installing busbars is relatively low, while cables are relatively high.
That's all for the comparison between bus ducts and cables. I hope it can provide you with effective assistance. For more information, please visit our website //www.comprepyme.com Consult and understand!
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槽式电缆桥架安装高度为什么有标准？
