What are the requirements for transformer room insulation pad

this paper explain for everybody distribution insulation pads, insulation pads, known as insulation blankets, insulation, insulation rubber sheet, insulating rubber sheet, insulating rubber pads, insulation, insulation foam rubber, insulation gasket, etc. , has a larger volume resistivity and electric breakdown resistance rubber gasket. Used for power distribution and other workplace mesa or floor insulation.

transformer room insulation pad

( 1) According to the voltage level can be divided into 5 kv, 10 kv and 15 kv, 20 kv, 25 kv, 30 kv, 35 kv;

( 2) According to the color can be divided into: black insulation pads, insulation pads, red green, insulation pads, dark green composite insulated pad

( 3) According to the thickness can be divided into: 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 12 mm.

( 4) According to the width can be divided into: 1 m, 1. 2 m, 1. 5 meters. Quality standard

appearance: spot mark or uneven: depth or height shall not exceed the rubber gasket thickness tolerance;

bubble: per square metre, the area is not greater than 1 cm2 bubble is not more than 5, the distance between any two bubbles is not less than 40 mm;

impurity: depth and length of no more than rubber gasket thickness is not less than 40 mm;

the edge is not neat or sponge: width does not exceed 10 mm, length is not less than 1/10 of the rubber gasket chief; Crack:

there is no

should be stored in dry and ventilated environment, away from heat source, more than 20 cm off the ground and wall. Avoid by acid and alkali and oil pollution, do not open to prevent avoid direct sunlight. National standard for

HG2949 - 1999 standard for electrical insulating rubber sheet rules

projects: power frequency withstand voltage test

period: 1 year

asked:

/ power frequency voltage level compression/duration

high pressure / 15 kV / 1 min

low pressure / 3. 5 kV / 1 min

note: used in electric equipment area

test with lower bunk wet cloth pad will be insulated or metal foil, and should be smaller than measured insulation pads around 200 mm, continuous uniform booster to the voltage value given in table 8, 1 min, observe whether the breakdown phenomenon, without breakdown, through the experiment. Sample segmentation experiment, two test edge to overlap. As pictured.

general configuration

( 1) 5 kv insulated pad thickness: 3 mm proportion: 5. 8 kg/m2 colors: red, green, black

( 2) 10 kv insulated pad thickness: 5 mm proportion: 9. 2 kg/m2 colors: red, green, black

( 3) 15 kv insulated pad thickness: 5 mm proportion: 9. 2 kg/m2 colors: red, green, black

( 4) 20 kv insulated pad: the thickness of 6 mm proportion: 11 kg/m2 colors: red, green, black

( 5) 25 kv insulated pad thickness: 8 mm proportion: 14. 8 kg/m2 colors: red, green, black

( 6) 30 kv - 35 kv insulated pad thickness: 10 mm to 12 mm proportion: 18. 4 KG/m2 22 KG/m2 colors: red, green, black