Will the three-phase selection of electric wire square root with the power between how to choose?
Three-phase power of the power, voltage, current relationship between the three P = 21.732UICOSφ, COSφ is the power factor calculated by 85%, calculate the current and then according to the current selection cable, blue load can be checked on the Internet can also consult the cable manufacturers
unnecessary. Information points rarely 3-5 layer set up on the line.
Is the layout or wiring? The layout is best based on the principle of the circuit first components layout, wiring, then the digital circuit with automatic wiring and manual adjustment, you can first key part of the hand cloth, and then automatically take the other line, the final manual adjustment, simulation Circuit, high-frequency circuit is the need for manual wiring of automatic routing efficiency, manual wiring more reasonable As for the automatic layout, sorry protel99 came out has been used now, never used automatic layout, if you put the components Location is no requirement, the circuit is very simple, you can try
no need. What kind of equipment to see the specific needs, and there is no need to use electronic patch panels. For example, a three-story building, the overall point of information together do not exceed . you can even save the patch panel, directly connected to the exchange equipment. Patch panel is very much in the floor, the information point is very much time to do with the management, this management is reflected in the manual plug RJ45 jumper; electronic patch panel is also managed, this management is reflected in front of the PC, through The software interface can be done by the traditional patch panel. **************************** If you did not seriously look at the answer to all of the above, that is, you have not described the problem clearly. The above answer is almost always the same, you do not see it?
