Diamond Dotted insulation paper is formed by coated the special modified epoxy resin in the shape of diamond on the electrical insulation paper Characters .due to the special modified epoxy resin in the shape of diamond,it can guarantee the oil immersion and gas discharge so as to ensure the security and reliability of insulation structure Application It is Widely used in oil-immersed power transformer insulation and ratios between layers of the insulation. Specification Nominal thickness(mm):0.08, 0.13 ,0.18,0.20, 0.25 Nominal width(mm):960mm ,490mm |
Properties | Units | Values | ||||||
BASIC MATERIAL THICKNESS | MM | 0.08 | 0.13 | 0.18 | 0.20 | 0.25 | ||
TOLERANCE | ±0.005 | ±0.007 | ±0.01 | ±0.01 | ±0.01 | |||
TIGHTNESS OF BASIC MATERIAL | G/CM3 | 0.85~1.10 | ||||||
RESIN THICKNESS OF SINGLE SIDE | ΜM | 10~15 | ||||||
WATER CONTENT | % | 4.0~8.0 | ||||||
OIL-ABSORBING | ％ | ≥20 | ||||||
BOND STRENGTH | NORMAL TEMPERATURE | KPA | ≥650 | |||||
100℃±2℃ | ≥400 | |||||||
POLLUTION FOR TRANSFORMER OIL | -- | NO POLLUTION (△TANΔ< 0.001) | ||||||
TENSILE STRENGTH | MD | N/10MM (WIDTH) | ≥60 | ≥110 | ≥160 | ≥180 | ≥230 | |
TD | ≥30 | ≥50 | ≥70 | ≥80 | ≥100 | |||
TEAR STRENGTH | MD | MN | ≥450 | ≥900 | ≥1350 | ≥1500 | ≥2000 | |
TD | ≥500 | ≥1000 | ≥1500 | ≥1700 | ≥2300 | |||
BREAKDOWN VOLTAGE | IN AIR | kv | ≥0.88 | ≥1.37 | ≥2.00 | ≥2.10 | ≥2.25 | |
IN OIL | ≥4.40 | ≥7.00 | ≥9.00 | ≥9.80 | ≥11.50 | |||
PRODUCT CURING CONDITIONS | HEATING TO 90 ℃ + 5 ℃, KEEP THREE HOURS AFTER HEATING TO 125 + 5 ℃, MAINTAIN 6 HOURS UNDER THE CONDITION OF CURING. | |||||||
