2013年10月7日星期一

The need for explosion-proof measures Cable Joints research

Currently, many power cables in tunnels, pipe (work well), bent in the form laid the event of failure, can easily lead to a fire, threatening the security of the grid. Moreover, a large number of cable fault occurred in the middle of the cable joints, the failure process of the energy accumulation, when there is an explosion happens, endanger the safety of  power transformers , to this end, it is necessary to carry out the measures Cable Joints explosion research. Power grid construction in the downtown area and out of the line most of the new substation using cable.  electric meter  the cable tunnel 20, total length of 33 km; has built 500 kV EHV power cables 2, 220 kV EHV power cables 197, 110kV EHV power cable 718. Cable in the tunnel, pipe (work well), cable layers and laying in trenches, Cable Joints  Voltage stabilizer  conditions, materials, technology and other factors, to become the weak link cable lines. And in the event of Cable Joints fault, the resulting destructive not only cause power outages this line may also be run on the surrounding cable lines, power facilities and personnel injury, and even lead to secondary accidents.

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