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(DDP) Diamond Dotted Paper
(DDP) Diamond Dotted Paper
Supplier Info
[China Supplier]
Contact Person : Mr. Green Paul
Tel : 86-838-2800131
Fax : 86-838-2801796
Product Detail
Real factory Prompt delivery Quality guarantee ISO,SGS certificate Competitive price

Diamond dotted paper(DDP) is made of insulating paper with diamond shape epoxy resin dotted on both sides. The epoxy used in DDP contains a kind of incubative hardener material. It is a dry and crisp material at normal temperature.This product has good dielectric properties and good mechanical properties after heat solidification.  It is to be used in oil-immersed transformers for the insulation between coils and between layers of oil immerged power distribution transformers.

Width: 800mm, 960mm, 1000mm, 1050mm, 1200mm, 1300mmThickness:0.08mm, 0.13mm, 0.18mm, 0.25mm, 0.38mm, 0.50mm

Properties

Unit

Values

Thickness of base paper

mm

0.08±0.005

0.13±0.007

0.18±0.01

0.20±0.01

0.25±0.01

Density of base paper

g/cm³

0.85-1.10

One side adhesive thickness

um

10-15

Moisture

%

4.0-8.0

Welding strength

Room temperature

kpa≥

650

100°C±2°C

400

Oil absorption

%≥

20

For the pollution of transformer oil

 

Free from contamination(tan §‹0.001)

Tensile Strength

MD

N/10mm width≥

60

110

160

180

230

CMD

30

50

70

80

100

Tear Strength

MD

mN≥

450

900

1350

1500

2000

CMD

500

1000

1500

1700

2300

Breakdown Voltage

In air

Kv≥

8

0.88

1.37

2.00

3.10

2.25

In oil

4.4

7.00

9.00

9.80

11.50

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