电力电缆入地推广研究课件.ppt

- * - The opportunity of underground cabling in the period of Beijing Olympic games Market potential Problems and solving strategy - * - During the Olympic construction period, underground cabling in Beijing brings a huge copper consumption potential about 30,000-50,000 tons more than 100KM roads reconstruction will match the demands of overhead cable construction within 16 districts and 2 suburbs, in the following 5 years, there will be more than 500KM roads. 2002-2008，The budget of Beijing electric power construction will be 36 billion Yuan . Within this budget, the underground cabling and other basic electric power establishment will occupy 3 billion Yuan/per year. 200KM backbone road Underground cabling in major branch road 20,000 tons Above 30,000 tons？ Forth part——Beijing - * - According to the road construction plan: copper potential of the backbone roads (200 KM) charged by the municipal government will reach:12,042-24,083 tons picture：one corner of Beijing south-west second ring road which was reconstructed in 2002 Forth part——Beijing Forecasting hypothesis: cable section: 676.5mm 2 (according to Sinotrust data of power supply companies investigation) copper density: 8.9g/cm3 cable spreading density: 10-20 bars/cable tunnel (according to Sinotrust data of power supply companies investigation) - * - According to Beijing roads reconstruction plan, potential copper consumption of overhead cable reconstruction the copper potential of urban roads construction is ：33,318 tons 海淀区 Forth part——Beijing - * - According to the data of Beijing power supply bureau，the length of electric power cable used in Beijing now is 4,583KM，but within forth ring roads(the city central areas) , overhead cable of 380V still has 3,000KM potential，and 10KV’s has 2,000KMExcept the new added roads,only the underground cabling of low voltage will consume 33,318 tons copper.（assumed that the area of cable section is 676.5mm2 ） 5000KM overhead cable are not buried with