Device of assessing RTV coating surface dirt retention capability
A technology of surface area and capacity, which is applied in the field of devices for evaluating the surface fouling ability of RTV coatings, and can solve the problems of uneven, accelerated, and time-consuming accelerated fouling of insulators
Inactive Publication Date: 2016-08-31
STATE GRID CORP OF CHINA +4
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Problems solved by technology
Natural pollution is to expose the insulator to the natural environment and let the natural pollution adhere to the surface of the insulator. The defect of this method is that it takes a long time; the second method is to use artificial wind tunnels to accelerate pollution.
Accelerated fouling test is generally carried out for insulators, but insulators have a large mass, and there is a problem of uneven accelerated fouling of insulators
Method used
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Embodiment 1
[0023] A device for evaluating the surface fouling ability of RTV anti-fouling flashover coatings. The product to be tested is a glass test piece coated with RTV anti-fouling flashover coatings. It is required that the RTV anti-fouling flashover coating used in the test has been cured on the surface of the glass test piece. , and the coating surface is flat and smooth.
[0024] The device includes an equipment support, a circular plate electrode and a sample support 6 . The material of the equipment bracket is polyoxymethylene plastic. The bracket is divided into an upper panel and a lower panel, and the two panels are connected by four pillars 5; the circular flat electrode is divided into an upper electrode 3 and a lower electrode 4, and the upper electrode 3 is fixed on the upper panel. The lower surface of the lower panel, the lower electrode 4 is fixed on the upper surface of the lower panel, and the two electrodes are coaxially arranged; the sample holder 6 is located be...
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The invention relates to a device of assessing an RTV (Room Temperature Silicone Rubber) coating surface dirt retention capability, characterized by comprising an equipment support upper panel (1) and an equipment support lower panel (2) which are parallel and are connected through at least three pillars (5); an upper electrode (3) and a lower electrode (4) are arranged between the equipment support upper panel (1) and the equipment support lower panel (2), wherein one side of the upper electrode (3) is fixedly installed on the equipment support upper panel (1) through an upper cylinder support member (7), and the upper cylinder support member (7) extends to the outside of the equipment support upper panel (1); the lower electrode (4) is provided with a sample support (6). The device can apply a glass specimen coated with RTV anti-contamination flashover coatings to a dirt retention acceleration device to perform manual dirt retention acceleration test, and to research RTV coating dirt retention properties.
Description
technical field [0001] The invention relates to a device for evaluating the fouling ability of the RTV coating surface. Background technique [0002] Because RTV (Room Temperature Silicone Rubber, referred to as RTV anti-fouling flashover coating) has good hydrophobicity and hydrophobic migration, it is widely used in anti-fouling flashover of transmission lines. After the RTV coating is applied on the surface of the insulator, the pollution flashover voltage of the insulator is increased, which plays an important role in preventing the pollution flashover of the transmission line and ensuring the safe and stable operation of the line. At present, RTV anti-pollution flashover coatings are widely used in porcelain insulators and glass insulators of UHV transmission lines. Due to the poor self-cleaning property of the surface of the RTV anti-fouling flashover coating, after coating on the surface of the insulator, it will increase the accumulation of dirt on the surface of th...
Claims
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IPC IPC(8): G01R31/12
CPCG01R31/1263
Inventor 刘世涛郭飞吴旭涛陈泓摆存曦车俊禄方宏亮谢贵文陈洪伟陈炜张鹏程张福荣李秀广常彬吴波张韶华郝金鹏马云龙周秀贾志东叶蔚安
Owner STATE GRID CORP OF CHINA