Calculation formula for the amount of wire and cable materials used
Date: 2020-11-23Read: 59
The customary method for calculating the weight of copper without conversion is: cross-sectional area * 8.89=kg/km
Calculated as 120 square millimeters: 120 * 8.89=1066.8kg/km
1. Conductor usage: (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 winding rate K2=core wire winding rate C=number of insulated core wires
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=Core wire twisting rate C=Number of insulated core wires
3. External usage: (Kg/Km)=(D1 ^ 2- D ^ 2) * 0.7854 * G
D1=completed outer diameter D=upper process outer diameter G=insulation density
4. Bag usage: (Kg/Km)=D ^ 2 * 0.7854 * t * G * Z
D=Outer diameter of the upper process t=Belt thickness G=Belt specific gravity Z=Overlap rate (1/4Lap=1.25)
5. Winding dosage: (Kg/Km)=d ^ 2 * 0.7854 * G * N * Z
D=copper wire diameter N=number of wires G=specific gravity Z=twisting rate
6. Weaving amount: (Kg/Km)=d ^ 2 * 0.7854 * T * N * G/cos θ
θ=atan (2 * 3.1416 * (D+d * 2)) * mesh size/25.4/T
D=diameter of braided copper wire T=number of ingots N=number of strands per ingot G=specific gravity of copper
Specific gravity: copper-8.89; Silver-10.50; Aluminum -2.70; Zinc -7.05; Nickel -8.90; Xi-7.30; Steel-7.80; Lead -11.40; Aluminum foil Mailla-1.80; Paper-1.35; Mera-1.37
PVC-1.45； LDPE-0.92； HDPE-0.96； PEF（发泡）-0.65； FRPE-1.7； Teflon（FEP）2.2； Nylon-0.97； PP-0.97； PU-1.21
Cotton strap -0.55; PP rope -0.55; Cotton yarn -0.48