What is the fire wire pipe laying? What is the galvanized steel pipe?
Fire wire laying is that the wiring circuit is different from the ordinary circuit, it provides the power is when the fire occurs when the ordinary circuit are powered down, it is also for power equipment to provide power, and its The wire type is also different from the ordinary circuit, the general use of refractory wire, and it is the pipe through the protective layer and ordinary different, ordinary threading tube thickness of the protective layer is generally 15mm, and the protective layer of the fire pipe thickness of 30mm. Galvanized steel pipe dark note that the two points, that is deposited pipe material, that is the way the pipe laying.
Because of the development of modern technology, weak electricity has penetrated into the field of strong electricity, such as power electronic devices, wireless remote control, but these can only be counted as strong power in the weak control part, it is charged with the strong or different
Mainly to distinguish each pair of lines like, 110 patch panel is connected with the network is the same, as long as the telephone line in the .5 line on the line
Will interfere with the impact of the effect, to avoid this situation, it is best to be strong and weak separate wiring strong power also have high frequency (hundreds of KHz) and IF equipment, but the voltage is higher, the current is also larger
