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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...
Corrosion on grounding rod can significantly increase the grounding resistance and compromise the safety of the power system. Applying a layer of conductive coating on the grounding conductor is an effective way of slowing down the corrosion. In this paper, a conductive RTV silicone coating was introduced, and the proper volume resistance of the coating was calculated and proved that the grounding...
Corrosion on grounding rod can significantly increase the grounding resistance and compromise the safety of the power system. Silicone rubber used in outdoor insulation area for its long life in adverse environments. This paper proposes a kind of conductive RTV silicone coating suitable for grounding systems. Conductive nano-particles such as carbon black and carbon fiber are added to reduce the resistivity...
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