U line =1600/1.732 *10 =1600/17.32 = 92.38a.
92.38/ 1.5=6 1.59A，50mm？ Copper cable, if you want to use aluminum wire, choose 90mm? Yes
Extended data
The estimation formula of bearing capacity is as follows:
Multiply 2: 50 by 9 and subtract a number to go up.
"Multiply 2.5 times 9, and decrease from top to bottom 1" refers to aluminum-core insulated conductors with various sections of 2.5 mm' and below, and their current carrying capacity is about 9 times of the number of sections. Such as 2.5 mm' conductor, the current carrying capacity is 2.5× 9 = 22.5 (a).
The multiple relationship between the current carrying capacity and the number of conductor sections with a diameter of 4mm' or more is that the current carrying capacity is arranged along the number of conductors, and the multiple decreases by L in turn, that is, 4×8, 6×7, 10×6, 16×5 and 25×4.
35 times 3.5, and both groups subtract 5.5.
"Thirty-five times 3.5, five points will be deducted for both groups" means that the current carrying capacity of 35mm "conductor is 3.5 times the number of sections, that is, 35× 3.5 = 122.5 (a). 50 mm or more from the conductor.
The multiple relationship between the current carrying capacity and the number of sections becomes a group of two line numbers, and the multiple decreases by 0.5 in turn. That is, the current carrying capacity of 50 and 70mm' wires is 3 times of the number of sections; 95. The current carrying capacity of 120mm "conductor is 2.5 times of its cross-sectional area, and so on.
The conditions have changed and changed, and the high-temperature 10% discount copper has been upgraded.
"The conditions have changed and changed, and the high-temperature 10% discount copper has been upgraded." The above formula depends on the bare condition of aluminum core insulated conductor at 25℃ ambient temperature. If the aluminum-core insulated conductor is exposed to the area where the ambient temperature is higher than 25℃ for a long time, the current carrying capacity of the conductor can be calculated according to the above formula, and then the discount is 10%.
When replacing aluminum wire with copper core insulated wire, its current carrying capacity is slightly larger than that of aluminum wire with the same specification. The current carrying capacity is calculated by the above formula, which is one more wire number than aluminum wire. For example, the current carrying capacity of 16mm' copper wire can be calculated as 25mm2 aluminum wire.
The number of pipes passing through is two, three, four, eight, seven and six times the full load flow.
Through two pipes, the current carrying capacity is calculated at 20% discount; Through three pipes, the current carrying capacity is calculated at 30% discount; Through four pipes, the current carrying capacity is calculated at 60% discount.
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