Please guess a riddle: a beautiful ride on the wire. (Hit a plant) Rural visible
Old rules ----- yellow and green phase line E ground slightly longer in the middle ------- L zero line blue line -------- N line of fire red line ------ key yellow green Phase line E ground to distinguish OK
FireWire is red, the blue line is blue. Ground is yellow and green. Three-phase socket, usually on the left and right to the right fire. Usually we will phase the current phase difference of 120 degrees wire called FireWire. Three-phase power of the three tail together called "zero line". The ground wire is the line connecting the earth to the earth.
Sorghum (pretty) should be the case The The The The Do the job. The The
Frequency converter cable for the variable frequency cable, he is generally 3 +3 core, outside the copper wire braided + copper double shield, it requires the cable has a low transmission impedance, low working capacitance, it has a lot of high magnetic waves, Cable insulation impact is relatively large, relatively high demand for interference interference factors. Frequency conversion cable long distance transmission, the general should be coupled with the reactor. Ordinary cable, the outside can be added according to the need to shield or not, although he can produce electromagnetic waves, but will not produce high harmonics, the insulation requirements of the cable is not high frequency cable, he can be four core, five core. There is no need for a symmetrical structure of the cable.
