Product Description:

Diamond dotted paper DDP     Model:   XU2110

Standard: JB / T1004.3-2004

It is an insulation material which Coating modified epoxy resin as diamond-shape and baking on the electrical insulation paper. Widely used in the oil-immersed transformers and mutual inductors’ layer insulation and turn insulation. When using, the coating layer begin to melt during the coil drying process at a certain temperature. resulting adhesion. As the temperature rises again curing, make the adjacent layers of the winding reliably bonded into a fixed unit. The bonding strength of the epoxy resin is sufficient to prevent the displacement of the various layers of the winding when short circuit, so as to ensure the long-term mechanical and electrical properties of the insulation structure.

Specifications:

Thickness: 80um(0.08mm),130um(0.13mm),180um(0.18mm),200um (0.20mm)                            250um (0.25mm)

width:  1000 mm or cut as user’s requirements.

Roll diameter: 250~300mm  Single roll weight: about 45~60Kg.

DDP diamond dotted insulating paper tape : Cut the fixed width of cable paper into the required width.

Technic data:

No.

Item

Unit

0.08

0.13

0.18

0.20

0.25

Value

1

Thickness & tolerance

mm

0.080±0.005

0.130±0.007

0.180±0.010

0.200±0.010

0.250±0.010

2

Density

g/m2

0.85-1.1

3

moisture content

%

4.0-8.0

4

Water extract PH

6.5-8.5

5

ash content

%

≤1.0

6

adhesive thickness

µm

6-12

7

oil absorbency

%

≥20

Pollution of transformer oil

No pollution

9

bond strength

 

Normal

KPa

≥650

100℃±2℃

≥400

10

Tensile Strength

MD(lengthwise)

N/10mm

≥60

≥110

≥160

≥180

≥230

CD(crosswise)

≥30

≥50

≥70

≥80

≥100

11

Elongation

MD(lengthwise)

%

≥2.0

CD(crosswise)

≥4.0

12

Tear strength

MD(lengthwise)

mN

≥450

≥900

≥1350

≥1500

≥2000

CD(crosswise)

≥500

≥1000

≥1500

≥1700

≥2300

13

Breakdown voltage

In air

KV

≥0.8

≥1.37

≥2.00

≥2.10

≥2.25

In Oil

≥4.00

≥7.00

≥9.00

≥9.80

≥11.50