Ami ẹla

Ilana iṣiro data

akọle-akọle
1 Imomun ti o ni iwuwo okun oni ati ilana iyipada ipari L / kg L1 = 143m / (d * d)
2 Onigun-gita-iwuwo ati iwọn iyipada ipari g / l Z = (t * w-0.2146 * T2) * 8900 * 1000/1000000
3 Agbegbe-apakan ti okun waya onigun mẹrin mm2 S = t * w-0.2146 * T2
4 Ida-okun waya ati ilana iyipada ipari ipari L / kg L2 = 274 / (D * D * 2 * awọn okun)
5 Resistance ti okun waya onigun Ω / l R = r * l1 / s
6 Agbekalẹ 1: resistance ti okun waya Ω / l R20 = RT × α α 103 / l3
7 Agbekalẹ 2: resistance ti okun waya Ω / l R2 (ω / km) ≦ R × 1.03 ÷ S × ni × 1000
L1 Ipari (m) R1 Resistance (ω / m)
L2 Gigun (M / KG) r 0.000000017244949 * ㎡ / m
L3 Ipari (km) Ri0 Ijowo resistance fun 1km ni 20 ° C (ω / km)
M Iwuwo (kg) Rt Resistance ni t ° C (ω)
D Giteri (mm) αt Imọye otutu
Z Iwuwo (g / m) R2 Resistance (ω / km)
T Sisanra (mm) r Resistance ti 1 mita-okun-okun ti a fi omi ṣan
W Gbooro (mm) s Awọn iṣan (Awọn PC)
S Agbegbe Abala (MM2)