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Ice accumulation on insulator strings and power transmission lines cause serious accidents in many cold regions around the world. The progress of ice accumulation is profoundly affected by surface characteristics such as hydrophobicity and surface heating. In this paper, a certain semiconducting RTV silicone rubber that can generate heat was developed. The heat exchange progress was investigated and...
The volume resistivity of RTV (room temperature vulcanized silicone rubber) could be adjusted by adding conductive fillers in varying proportions. The ice coating on the surface of porcelain or glass insulator is supposed to be reduced by applying RTV silicone rubber with different volume resistivity in two different ways. Thus, the ice flashover voltage is also supposed to be increased. The reasons...
The volume resistance of RTV silicone rubber was adjusted by adding conductive fillers. By applying RTV silicone rubber with different conductivities to the different parts of an insulator, the electric field distribution was configured to reduce ice forming at the shed. Experimental results showed that the icicles on the coated porcelain insulators were notably shortened compared with those of uncoated...
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