Diamond Dotted Insulation Paper - DDP

Index.

Unit

Value

1

Thickness and tolerance

mm

0.08±0.005
0.13±0.007
0.18±0.010
0.20±0.010
0.25±0.010

2

Density

g/cm3

0.85?1.10

3

Single thickness

μm

10?15

4

Moisture content

%

4.0?8.0

5

Oil-absorption

%

≥20

6

Bond strength

at room temp.

kPa

≥650

100±2

≥400

7

Pollution for transformer oil

-

no pollution(tan0.001)

8

Tensile Strength

lengthwise

N/10mm

≥60

≥110

≥160

≥180

≥230

crosswise

≥30

≥50

≥70

≥80

≥100

9

Tearing Strength

lengthwise

Mn

≥450

≥900

≥1350

≥1500

≥2000

crosswise

≥500

≥1000

≥1500

≥1700

≥2300

10

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