5000W of electrical appliances, how much wire to use? 220V
Single phase with 6 square 3 phase equipment with 2.5 or 4 square on OK OK!
This depends on whether you use the three-phase power or single-phase power, and if it is three-phase power and not a long time full load operation, then 2.5 square copper wire enough; if it is single-phase 220V power, the best Or with 4 square copper wire more secure. Because 6KW 220V power supply current is about 28A or so, and 380V supply current is about 16A [according to Ohm law].
For example: 1000 watts of light to how much wire ah? I want to install a basketball court stadium lights, 4 × 1000 watts, the line is to walk around, each lamp a switch, FireWire with 4 square copper, zero line four common, is 4 square copper, I do not know Is it possible? What is the price of copper? According to my line to the line of the budget about how much? (The stadium around the 30m × 18m this problem is divided into two cases: the principle of power supply: the distance from the long calculation of the pressure drop, the distance from the short diameter of the wire on the capacity to say that 1000W lights with 1.5 square lines on the line But you have to ensure that there is a voltage of not less than 200V on the target, which requires that the resistance of the wire be less than 20V / 5A = 4 ohms. If the long distance from the power supply, please tell the distance and requirements (with aluminum or copper), I give you a calculation. If the four lights, with three-phase electricity better, two of which Each phase of a lamp, the other phase with two lights, each lamp with 1.5 square feet, zero line with 1.5 square enough. We all know that with three-phase power line is it. If it is single-phase power supply, shared zero Line should be 6 square, this is the design requirements, you can use the amount of fine, no matter what.
