Fomula

Usoro mgbako data

ngalaba - Aha
1 Enameled COPEPR RERR RER RE NA EGO L / kg L1 = 143m / (d * d)
2 Eriri afọ nke akụkụ anọ na ogologo ntụgharị g / l Z = (T * W-0.2146 * T2) * 8900 * 1000/1000000
3 Mpaghara mpaghara akụkụ anọ mm2 S = t * w-0.2146 * t2
4 Litez waya na ogologo ntụgharị L / kg L2 = 274 / D * D * 2 * Strands)
5 Nguzogide nke Wire Warther Ω / l R = r * l1 / s
6 Usoro 1: Nkwụgide Wire Lire Ω / l R20 = RT × α × 103 / l3
7 Usoro 2: Ngugide nke Lire Lire Ω / l R2 (km) ≦ R × 1.03 ÷ S × na × 1000
L1 Ogologo (m) R1 Iguzogide (ω / m)
L2 Ogologo (m / n'arọ) r 0.000000017244 * ㎡ / m
L3 Ogologo (km) R20 Na-eduzi nguzogide kwa 1km na 20 Celsius C (ω / km)
M Ibu ibu (n'arọ) Rt Iguzogide na t ° C (ω)
D Dayameta (mm) α Ọnọdụ okpomọkụ
Z Ibu ibu (g / m) R2 Iguzogide (ω / km)
T Ọgwụ (mm) r Ngugide nke 1 mita otu-eriri na-elameleled
W Obosara (mm) s Strands (PC)
S Mpaghara mpaghara (MM2)