# Common braiding calculation formulas for the hotte

2022-10-13
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Common braiding calculation formula of wires and cables

1. Conductor consumption: (kg/km) =d^2 * 0.7854 * g * n * K1 * K2 * C

d= copper wire diameter g= copper specific gravity n= number of wires k1= copper wire stranding rate k2= core wire stranding rate c= number of insulated cores 2. Insulation consumption: (kg/km) = (d^2 - d^2) * 0.7854 * g * c * k2

d= insulation outer diameter d= conductor outer diameter g= insulation specific gravity k2 Experimental stroke 2= core stranding rate c= number of insulated cores

3, external coating amount: (kg/km) = (d1^2 - d^2) * 0, and automatically realize data display 7854 * g

d1= finished outer diameter d= upper process outer diameter g= insulation specific gravity

4. Wrapping amount: (kg/km) = d^2 * 0.7854 fine adjustment control parameters * t * g * z

d= upper process outer diameter t= wrapping thickness g= wrapping specific gravity z= overlap rate (1/4lap = 1.25)

5. Wrapping amount: (kg/km) = d^2 * 0.7854 * g * n * z

d= copper wire diameter n= number of wires g= specific gravity z= twist ratio

6 Knitting amount: (kg/km) = d^2 * 0.7854 * t * n * g/cos θ

θ = Atan (2 * 3.1416 * (D + D * 2)) * mesh/25.4/t

d= diameter of braided copper wire t= number of ingots n= number of bars per ingot g= specific gravity of copper

specific gravity: copper -8.89; Silver -10.50; Aluminum -2.70; Zinc -7.05; Nickel -8.90; Tin -7.30; Steel -7.80; Lead -11.40; Aluminum foil Mylar -1.80; Paper -1.35; Myra-1.37

pvc-1.45; ldpe-0.92； hdpe-0.96； PEF (foaming) -0.65; frpe-1.7； teflon（fep）2.2； nylon-0.97； pp-0.97； Pu-1.21

cotton tape -0.55; PP rope -0.55; Cotton yarn-0.4 the members of the wood plastic composites Professional Committee of China Green Building Materials Industry Development Alliance nearly include all backbone enterprises and organizations engaged in the R & D and production of new biological (wood plastic) composites and their equipment in China 8 (all false proportion)

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