电线成本计算公式

2025-03-26 12:52:58
推荐回答(1个)
回答1:

1。导体用量:(Kg/Km)=d2 × 0.7854 × G × N × K1 × K2 × C
d=铜线径 G=铜比重 N=条数 K1=铜线绞入率 K2=芯线绞

2。绝缘用量:(Kg/Km)=(D2 - d2)× 0.7854 × G × C × K2
D=绝缘外径 d=导体外径 G=绝缘比重 K2=芯线绞入率 C=绝缘芯线根数

3。外被用量:(Kg/Km)= ( D12 - D2 ) × 0.7854 × G
D1=完成外径 D=上过程外径 G=绝缘比重

4。包带用量:(Kg/Km)= D2 × 0.7854 × t × G × Z
D=上过程外径 t=包带厚度 G=包带比重 Z=重叠率(1/4Lap = 1.25)

。缠绕用量:(Kg/Km)= d2 × 0.7854 ×入率 C=绝缘芯线根数

2。绝缘用量:(Kg/Km)=(D2 - d2)× 0.7854 × G × C × K2
D=绝缘外径 d=导体外径 G=绝缘比重 K2=芯线绞入率 C=绝缘芯线根数

3。外被用量:(Kg/Km)= ( D12 - D2 ) × 0.7854 × G
D1=完成外径 D=上过程外径 G=绝缘比重

4。包带用量:(Kg/Km)= D2 × 0.7854 × t × G × Z
D=上过程外径 t=包带厚度 G=包带比重 Z=重叠率(1/4Lap = 1.25)

5。缠绕用量:(Kg/Km)= d2 × 0.7854 × G × N × Z
d=铜线径 N=条数 G=比重 Z=绞入率

6。编织用量:(Kg/Km)= d2 × 0.7854 × T × N × G / cosθ
θ = atan( 2 × 3.1416 × ( D + d × 2 )) × 目数 / 25.4 / T
d=编织铜线径 T=锭数 N=每锭条数 G=铜比重

比重:铜-8.89;银-10.50;铝-2.70;锌-7.05;镍-8.90;锡-7.30;钢-7.80;铅-11.40;铝箔麦拉-1.80;纸-1.35;麦拉-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
棉布带-0.55;PP绳-0.55;棉纱线-0.48 (均为假比重)

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