1. The installation space of the multi-level trolley line is smaller than the single-stage trolley line. Since the multi-polar trolley line is only installed in a single-line system, the copper strips of all grades are in one pipe, and the unipolar trolley line can be used. Three-phase four-wire installation method, if there is a failure, it is easy to repair to find the problem! And the attachments of the two are also different.
2. Unipolar safety trolley wire, the main structure is aluminum alloy conductor, shell is made of polyvinyl chloride and special material. Aluminum alloy conductor wear stainless steel strip, its heat dissipation, safety, conductivity are the first choice for mobile devices, to find some of the formal trolley line manufacturers to buy, single-pole safety trolley line service life can be more than 10 years; The multi-pole wire structure is composed of PVC plus special materials and copper sheets. The interior of the multi-polar wire is hollow. The most commonly used is the four-pole wire. The working condition is that the carbon on the current collector The brush transmits current by friction with the copper plate. The difference in the conductors of the two also determines the difference in the resistance between the two. Of course, the conduction losses of both are relatively small.
3. Although the multi-pole trolley wire is mainly used in power plants, steam workshops and other occasions, it is still not as wide as the application range of single-pole trolley wires!
Cnc Machining refers to Machining of metals with CNC Machining tools and tools.CNC index-controlled machine tool is programmed by CNC machining language, usually G code.CNC machining G code language tells CNC machine tool machining tool to use what cartesian position coordinates, and control the feed speed of the tool and spindle speed, as well as tool converter, coolant and other functions.CNC machining has great advantages over manual machining, such as CNC machining parts are very accurate and repeatable;CNC machining can produce parts with complex shapes that manual machining cannot complete.
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