PRTV anti flashover compound coating

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PRTV outside power equipment insulates with takes shape permanence anti flashover compound coating PRTV outside power equipment insulates with takes shape permanence anti flashover compound coating, is a kind of electrical power system uses the new electrical function material, it’s specially for the electrical network and each round, loses, uses electricity the customer to be lasting eliminates the equipment flashover thoroughly the hidden danger then to design, It’s developed jointly by the North China electric power academy of science with our company successfully. The product has the unique chemical composition and the structure, achieved and surpasses the heat vulcanization silicon rubber physics electrical specification, Overall performance and so on more outstanding water repellency nature, as well as 20 years design service life has provided a kind of new technical measure for the electric porcelaneous equipment permanence counter- dirt. 1. Product Execution Qualification This uses the North China electric power group company standard "Outside the Power equipment To insulate with Takes shape the Permanence Anti flashover the Compound Coating (PRTV) To use Leads Then", With Hebei silicon valley chemical industry limited company standard Q/HGH 019-2004 “Outside PRTV Power equipment Insulates with Takes shape Permanence Anti flashover Compound Coating" to organize the product the production and the construction. 2. Range of application This product mainly uses in the electrical power system transformer substation and the transmission line insulator, the power plant and the electric power user changes outside the electricity equipment as well as other electrical equipments insulates lastingly anti flashover . After the porcelain (or glass) the insulator uses this product, Forms the porcelain (or glass) the skeleton complex effect, Enhances one kind of standardized disposition plan which outside the power transformer equipment insulates. Is suitable in alternating and direct circuit system rated voltage 1~750kV, Environment Temperature -50℃~ +50℃, Under the contamination condition moves outside the transformer substation and the impractical transmission line equipment insulates antifouling, Prevention flashover, Enhances the equipment outside to insulate the rank. 3. Operation Guide To porcelain (or glass) insulator superficial thorough clear dirt, Removes the contamination, the fat and other attachments, After waits the electric porcelaneous surface pure to be dry, May use to spurt spreads or brushes spreads and so on to spread spreads the method to carry on the construction, Coating thickness is 0.5 ~ 0.6mm, the coating should leak proof spread, not dribble, does not hang the silk, The surface is smooth, levels also does not have the air bubble. Originally has used the RTV equipment, Should be clean the unreliable attachment cleaning up, remove the contamination, After uses the special-purpose processing medicinal preparation to clean, Again executes spreads PRTV. 4. Package and Storage This product packing in airtight metal container, When storing and transportation should maintain dry and ventilates, Prevented all day exposes to the sun, the rain drenches. The storage time is 1 year, Duplicate surpassed the storage time after to examine qualified still may use when the coating uncaps the use, if has not used up, Should cover securely immediately the airtight preservation. PRTV outside power equipment insulates with takes shape permanence anti flashover compound coating Technology parameter data sheet Items Q/HGH 019-2004 Standard Technical Property （Test） Test method Outward appearance Does not have the obvious mechanical impurity and the cotton wool shape, The coating should level, be smooth also does not have the air bubble Toughness liquid, Does not have the impurity and the cotton wool shape, The coating is smooth also does not have the air bubble GB 1721-1979 Viscosity s 100~200 160 GB 1723-1993 Dielectric Strength kV/mm ≮25 32.3 GB 1408-1978 Surface resistivity Ω•m Volume resistivity Ω•m ≮1×1012 4.25×1013 GB 1410-1978 ≮1×1014 2.92×1015 Relative permittivity dielectric lose tangent value ≯3.0 2.7 GB 1409-1978 ≯0.3% 2.5×10-3 Arc resistance s ≮180 217 GB 1411-1978 Electricity wear and tear leaks AC Alternating current ≮TMA 4.5 1A 4.5 GB 6553-1986 DC Direct current ≮TMA 3.5 1A3.5 Adhesion ability Cementation shearing strength MPa ≮3.0 4.7 GB 13936-1992 Cycling method level No less 2 level 1 GB1720-1989 Abrasion resistance g ≯0.05 0.035 GB 1768-1989 Ratio of Water absorption % ≯0.25 0.15 GB 1738-1989 Hydrophobicity Hydrophobic and level Qav≥100°Qmin≥90°HC1~2 106°~109° HC1 DL/T810-2002 Lose property 96h Qav≥90°Qmin≥85°HC3~4 Non showing loss recovery characteristic t≤24h Water repellency characteristic 96h Qav≥110°Q min≥100°HC2~3 14 h Hydrophobicity reach HC1 110°~115° Erosion Resistance Test Acid , alkali and salt , 80℃24 h Does not have the corrugation, falls off, bubbles, changes color and so on, The adhesion is not lower than 2 levels Does not have the corrugation, falls off, bubbles, changes color the phenomenon, The adhesion is 1 level GB 1763-1989 transformer oil 105℃24 h Does not have the corrugation, falls off, bubbles and so on, The adhesion is not lower than 2 levels Does not have the corrugation, falls off, bubbles the phenomenon, The adhesion is 1 level GB 1739-1989 Labor frequency arc-over voltage Dry arc-over voltage kV Has the coating insulator not to have the coating insulator not to have relatively to reduce Paint-coat 79.2 , no 75.9 GB 775-1987 Wet arc-over voltage kV Paint-coat 61.9, no 55.9 Flashover resistance test U1(have paint-coat )/U2(no paint-coat )≥2.0 U1 /U2 =2.23 GB 4585.1-1984 Heat resistant denaturation experiment -40℃~+80℃，2.5h×5 times The coating should not damage, The adhesion inspection is not lower than 2 levels After the experiment the coating does not have bubbles, the dehiscence, falls off, Adhesion 1 level DL/T627-1997 Salt Spray test 1700 h The test specimen does not surpass 3 time has flowed the severance After 1800h，Does not have has flowed the severance GBT5892-2003 GB/SV023-2003 Does not have leaks the mark, The electricity wear and tears have not reached the porcelain glaze Does not have leaks the mark, The wear and tears have not reached the glazed surface Hydrophobic migration characteristic HC2~3 level HC1~2 level A row line of experiment passes ≥3.0MPa 3.5 MPa Flame Resistance FV-O level FV-O level GB/T13488-92 The longitudinal strength and pulls apart the elongation ratio Strength MPa ≮4.0 5.5 GB/T528-1988 elongation % No less 350 390 peel strength kN/m ≮12.0 17.5 GB/T529-1988 Hardness (Shao ) 35~55 46 GB/T531-1999 Vulcanizing time Surface Dry up min 20~50 35 GB6753.2-1986 Full dry up h ≯72 65 storage stability 50℃ ≥45days After 60 days ，A row line of experiment passes GB6753.3-1986 Self Clearance property [Only requests antifouling] After the dirty fluid cementation is dry, Strips the intensity ≯3kPa(1 level ) Peel off strength 2.3kPa(1 level ) QB/SV021-2003 Anti –icing property [Only requests to guard against the ice] Anti- regelation (measure) Paint-coat ice cover measure /no paint-coat ≯30% 18.3% QB/SV022-2003 hydration property DC value ≮90% 91.2% svchem65@yahoo.com.cn

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hebei silicon valley chemical co.,ltd

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