路灯压降计算表

序号灯具名称灯杆号功率（KW）

I=P/ (U×cosφ×η)

1250W双灯头高压钠路灯10.5 3.1565656572250W双灯头高压钠路灯21 6.4352323123250W双灯头高压钠路灯3 1.59.8507392914250W双灯头高压钠路灯4213.420942085250W双灯头高压钠路灯5 2.517.167789266250W双灯头高压钠路灯6321.118719517250W双灯头高压钠路灯7 3.525.308716488120W单灯头LED路灯8 3.6226.954004829120W单灯头LED路灯9 3.7428.1761579110120W单灯头LED路灯10 3.8629.3373949211120W单灯头LED路灯11 3.9830.5057879112120W单灯头LED路灯12 4.131.6958227213120W单灯头LED路灯13 4.2232.9117921114120W单灯头LED路灯14 4.3434.1560800615120W单灯头LED路灯15 4.4635.4308390616120W单灯头LED路灯16 4.5836.7383688717121W单灯头LED路灯17 4.738.0812339818122W单灯头LED路灯18 4.8239.462332819123W单灯头LED路灯

19

4.94

40.88496652

20末端压降21

末端电压

铁山路压降计算表（从箱变至末端共1900米，前700米带250W双灯头高压钠路灯21盏，后1200米

电缆用VV4*25分三相平均带灯

1200米带120W单灯头LED路灯36盏，路灯间距35米，均带灯

R=ρ×L/SΔU=I×R备注

1.3224 4.1742424240.004174

1.32248.5099512090.00851

1.322413.026617640.013027

1.322417.747853810.017748

1.32242

2.702684510.022703

1.322427.927394690.027927

1.322433.468246670.033468

1.322435.643975970.035644

1.322437.260151220.03726

1.322438.795771040.038796

1.322440.340853940.040341

1.322441.914555970.041915

1.322443.522553880.043523

1.322445.168000270.045168

1.322446.853741570.046854

1.322448.5828190.048583

1.322450.358623810.050359

1.32245

2.18498890.052185

1.322454.066279730.054066

54.06627973

165.9337203