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    Home > Active Ingredient News > Drugs Articles > Common specifications and selection guide of insulating rubber pad

    Common specifications and selection guide of insulating rubber pad

    • Last Update: 2015-03-21
    • Source: Internet
    • Author: User
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    Insulating rubber pad is widely used in substation, power plant, power distribution room, test room and field live work There are many models and many choices I hope this article can help you in your choice I specifications of insulating rubber pad (1) 5kV, 10kV, 20kV, 25kV, 35kV (2) black insulating rubber pad, red insulating rubber pad and green insulating rubber pad (3) 2mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm according to the thickness, 12mm Detailed rules for insulating rubber mat: 4mm, 5kV, 5mm, 5kV, 6mm, 10kV, 8mm, 10kV, 10mm, 15kV, 12mm, 35kV 2 General use and configuration of insulating rubber mat: (1) thickness of 5kV insulating rubber mat: 3mm, specific gravity: 5.8kg/m2, color: Red, green, black (2) thickness of 10kV insulating rubber mat: 5mm, specific gravity: 9.2kg/m2, color: red, green, black (3) 15kV insulating rubber pad thickness: 5mm specific gravity: 9.2kg/m2 color: red, green, black (4) 20kV insulating rubber pad thickness: 6mm specific gravity: 11kg / m2 color: red, green, black (5) 25kV insulating rubber pad thickness: 8mm specific gravity: 14.8kg/m2 color: red, green, black (6) 30kv-35kv insulating rubber pad thickness: 10mm 12mm specific gravity: 18.4kg/m2 22 kg / m2 color: red, green, black 3、 National standard for insulating rubber pad: 8mm thick power frequency withstand voltage test is selected for 10kV in the distribution room for 1 minute without breakdown, 18000V in power frequency withstand voltage test for 20 seconds The power frequency withstand voltage test of 35kV 10-12mm thick in the distribution room is 15000V for one minute without breakdown, and 26000v for 20 seconds in the power frequency withstand voltage test The power frequency voltage withstand test of less than 5 mm thick and less than 500 V shall be selected for the low voltage of the distribution room, 3500v for 1 minute without breakdown, 10000v for 20 seconds without breakdown in the power frequency voltage withstand test 4、 Requirements for appearance, specification and size of insulating rubber pad: The depth or height of the spots or concave convex points of the insulating rubber pad shall not exceed the thickness tolerance of the rubber plate Within each square meter of bubbles, there shall be no more than 5 bubbles with an area of no more than 1cm2, and the distance between any two bubbles shall not be less than 40mm, among which the depth and length of the impurities of the insulating rubber pad shall not exceed the thickness of the rubber plate, the edge of the insulating rubber pad shall be uneven or the width of the sponge like points shall not exceed 10 mm, and the insulating rubber pad The length shall not exceed 1 / 10 of the total length of the rubber plate, and no crack is allowed on the insulating rubber pad 5、 There are three basic selection criteria for insulating rubber pad: first, do not have pungent smell For rubber products, smell is inevitable, but the smell must not be too strong As we said at the beginning, too much smell affects the users The insulating rubber pad with too much smell is also the direct performance of Zui with too much secondary rubber added Second, look at the degree of stretch, a good insulating rubber pad must be elastic In addition to the insulation function, the insulating rubber pad also has the function of relieving fatigue Pull the insulating rubber pad hard It feels elastic and will not break This kind of insulating rubber pad can be regarded as a good product Third, one pull, one fold, there will be no fracture Many kinds of easy to break insulating rubber pads are made of recycled rubber added to the raw materials Such insulating rubber pads have poor insulation performance and affect personal safety Fourth, it is also an important point of Zui to do the withstand voltage level test The insulating rubber mat is laid in the electric power place, which requires that the insulating rubber mat we purchase must reach the specified withstand voltage level This cannot be ignored! 6、 The use and storage of insulating rubber mat is widely used in substations, power plants, power distribution rooms, test roommates and field live work The insulating rubber pad shall be stored in a dry and ventilated environment, away from the heat source and more than 20cm away from the ground and wall The insulating rubber pad shall be stored in a dry and ventilated environment, away from the heat source and more than 20cm away from the ground and wall Avoid being polluted by acid, alkali and oil, and avoid direct sunlight in the open air 7、 Production and manufacture of insulating rubber pad composition: the insulating rubber pad shall be made of rubber type insulating material Process and molding of insulating rubber pad: the upper and lower surfaces of insulating rubber pad shall be free from harmful irregularities Harmful irregularity refers to one of the following characteristics, that is, the defects that damage the uniformity and smooth contour of the surface, such as small holes, cracks, local bulges, cuts, inclusions of conductive foreign matters, creases, voids, concave convex ripples and casting marks Harmless irregularity refers to the surface irregularity formed in the production process Source: Shanghai Hengmei Electric Co., Ltd.: http://
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