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Home>News> Which Is Better? Buss Bar VS Electric Cable

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Which Is Better? Buss Bar VS Electric Cable 2013-01-24

Buss bars and cable assemblies are two power distribution systems in the modern electronic equipments. The busbar is generally taking the place of conventional electric cable. But why? Below are my personal opinions towards this question.

 

By taking a look at the construction of buss bars and piles of cables, we can easily tell them apart. The first impression of cables is messy, just a bundle of cables in different colors mixing together. But the bussbar gives a sense of neatness and clearness. Moreover, messier means a bigger chance for errors. And more errors mean more expense on maintenance. This is just a vicious cycle.

 

Generally speaking, the buss bar design is more compact than cable wiring design. This special design can relieve the situation of air flow restriction caused by cable wires. Conventional electric cables have relatively poor thermal management and inferior performance mechanically and electrically.

 

Bussbar has many advantages when it is compared with cables in aspects of performance, safety, installment and application. Reliability is a favorable feature of bas bar, especially in harsh environmental conditions. It is reported that bus bar can last much longer than electric cables with a life span about 30 years contrasting 5 years of cable. Basbar needs fewer conductors to feed multiple outputs. It uses advanced technology to integrate all the functional components together such as circuit breakers, connectors and fuses. This reduces costs greatly. Thus bussbar is cost effective. By using bussbar, we can have high voltage distribution with low voltage drop. Other excellent electrical properties include low character impedance, low inductance and high capacitance.

 

We can also have less noise, one of the wonderful mechanical properties.Bussbar has a wide range of applications. It can be applied in any equipment that requires power distribution such as servers, storage and networking. We can find its usage in hybrid electric vehicles, industrial power supplies and integration distribution modules and etc.

 

Though bus bar surpasses electric cable in many ways, it doesn't mean that there is no need for cables. The cables still hold its place in some cases. For example, in some rack-mounted systems, the current won't rise above the capacity of a backplane. Electric cables might be enough to do the job when there are only a few cabinets being wired. Cable wiring is a better choice than bus bar design in those situations. The advantages of bus bar stand out in complex power distribution.