Distribution room insulation pads wholesale price 15230111726

1, insulation pads characteristics: good mechanical properties, excellent insulation properties, can work in a dry -35 ~ + 100 ℃ air of dielectric coefficient demanding environment. Through 43KV testing, the normal working state under 660V. Flexibility, superior insulation properties, the surface shiny. 2, the use of insulation pads suitable for electronic workbench and laying the ground sites, power plants, substations and installation of laying the ground; 3, insulation pads Caution: insulation pads should be kept intact, appear fragmented, damaged, thickness reduction, not enough to ensure that the insulation performance, etc., should be replaced. 4, insulation pads national standard: HG2949-1999 "electrically insulating rubber sheet" standards. 5, insulation pad configuration table selection: different voltage levels of use of the environment should be used in insulation pads of different thicknesses. Power Appliances Co., Ltd. Shijiazhuang Cheung faction specific insulation pad configuration selection follows: electrical insulation performance test pad thickness frequency voltage withstand test requires time power frequency voltage withstand test standard values ??measured frequency voltage withstand test of time-frequency resistance Pressure test measured value 10KV 5mm 1 分钟 10KV 2 分钟 ≥15KV 15KV 6mm 1 分钟 10KV 2 分钟 ≥15KV 25KV 8mm 1 分钟 25KV 2 分钟 ≥30KV 35KV 10mm 1 分钟 35KV 2 分钟 ≥35KV 35KV 12mm 1 分钟 35KV 2 分钟 ≥35KV 6 pilot project insulation pads, insulation pads cycles and require pilot projects, and require periodic cycle requirements No. Item Description 1 1-year frequency voltage withstand test power frequency withstand voltage kV min duration energized equipment used in area 7 insulation pads test methods test circuit shown in Figure 4. During the test the first insulating pad covered with a damp cloth or metal foil up and down, and should be small 200mm, continuous and uniform boost the supremacy of the table than the predetermined voltage value measured insulation pads around 1min, to observe whether the breakdown phenomenon, in the absence breakdown, the test is passed. Sample segmentation test, two test edge to overlap. Figure 4 test wiring insulation pads 8, insulation pads and molding process: the upper and lower surfaces of insulation pads should be no harmful irregularities. Insulation pads harmful irregularities is one of the following characteristics, namely the destruction uniformity, damage the surface smooth contour defects such as holes, cracks, local uplift, incision, mixed with conductive particles, creases, the gap, bump and ripple casting marks. Insulation pads harmless irregularities is surface irregularities formed during production. 9, insulation pad thickness: the entire insulation pads should be randomly selected more than five different points for thickness measurement and inspection. You can use a micrometer or similar instrument to measure accuracy. Micrometer accuracy should be within 0.02mm, measured drill diameter 6mm, presser foot diameter plane was (3.17 ± 0.25) mm, should be able to exert pressure on the presser foot (0.83 ± 0.03) N The insulation pads should be placed flat, so between the micrometer measurements are smooth.