LED lights and traditional street lamps in the difference on the cost of cable

LED lights and traditional street lamp on the cable cost difference is bigger, we have to analyze three length of laying cable cost, two kinds of light road, 3 km road, a traditional street light trunk cable load flow I = P/U = 202 * 250/220 = 230 a, it should be 60 was cross-sectional area for copper

LED lights and traditional street lamp on the cable cost difference is bigger, we have to analyze three length of laying cable cost, two kinds of light road, 3 km road, a traditional street light trunk cable load flow I = P/U = 202 * 250/220 = 230 a, it should be 60 was cross-sectional area for copper cable, its unit price is 120 yuan/m, is the cable cost is RMB 120 * 3000 = 360000, LED street light trunk cable load flow l = P/U = 50/220 = 202 * 44 a, it should be cross-sectional area is 1 omm2 copper core cable, it should be 12 was copper core cable cross section, the unit price is 12 yuan/m.

traditional street lamp cable cost of 12 * 300 = 3. 60000 yuan, 5 km road, a traditional street light trunk cable load flow I = P/U = 333 * 250/220 = 377 a, it needs to cross section of 90 was the copper cable, the unit price is 180 yuan/m, cable cost is RMB 980 * 5000 = 900000.

the LED street light trunk cable load flow I = P/U = 333 * 50/220 = 73 a, it needs to cross section of 20 was copper cable, the unit price is RMB 25 / cost is 25 * 5000 = 12. 50000 yuan, 10 km road, a traditional street light trunk cable traffic I = P/U = 666 * 250/220 = 680 a, it needs the copper core cable cross section is 400 m2, the unit price is 360 yuan/m, cable cost is RMB 360 * 10000 = 3. 6 million, LED street light trunk cable load flow I = P/U = 666 * 50220 = 146 a, it needs to cross section for 42 was copper cable, the unit price is 60 yuan/m, cost is RMB 600000.