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  • 商品名称: 电工菱格涂胶纸
  • 商品编号: DJ001

 

Diamond pattern adhesive insulating paper 

 

产品简介:

 

  菱格涂胶绝缘纸是将特种改性环氧树脂呈菱格状涂覆在电工绝缘纸上的绝缘材料。广泛地应用于油浸式电力变压器的层间绝缘及匝绝缘。使用时涂覆层在线圈干燥过程中在一定温度时开始熔化,产生粘附作用。随着温度的升高又开始固化,使绕组的相邻各层可靠地粘合成一个固定单元。环氧树脂的粘合强度足以防止短路时绕组各层的位移,从而保证了绝缘结构长期的机械电气性能。

  由于菱格涂胶绝缘纸的树脂涂层呈点状,保证了油的浸入和绝缘材料中气体的排出,有效地避免电晕和局放,从而保证了绝缘结构的安全、可靠。

Introduction:

Diamond pattern adhesive insulating paper is a type of insulation material coating special modified epoxy resin on electrical insulating materials. It is widely applied in inter-layer insulation and turn insulation of oil-immersed power transformers. During application, the coated layer starts to melt under certain temperature in the process of coil drying and results in adhesion effect. As temperature rises, it starts to solidify and makes coils’ adjacent layers reliably bond into a fixed unit. The adhesive strength of epoxy resin is strong enough to prevent the displacement of coil layers in case of short-circuit, so as to ensure the long-term mechanical and electrical performance of insulation structure.

As the resin coat of diamond pattern adhesive insulating paper is dot shaped, the paper ensures oil immersion and the discharge of gas from insulation materials, effectively prevents electric corona and partial discharge, thus ensuring the safety and reliability of insulation structure.

 

性能要求:

Performance Requirements:

 

序号

No.

性     能

Performance

单位

Unit

要              求

Requirement

1

基材厚度及公差

Base material 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

基材紧度

Base material tightness

g/cm³

0.85-1.10

3

单面胶粘剂厚度

Single-sided adhesive thickness

um

6-12

4

水分

Moisture

%

4.0-8.0

 5

灰分

Ash

%

≤1.0

 6

水抽出物电导率

Conductivity of water extract

ms/m 

≤10

 7

水抽出物PH值

PH value of water extract

6.5-8.5

8

吸油性

Oil absorption

%

≥20

9

粘结强度

Adhesive strength

常态

Normal state

kpa

≥650
≥400

100℃±2℃

10

对变压器油的污染

Contamination of transformer oil

 -

无污染No pollution(tanδ<0.001)

11

拉伸强度

Tensile strength

纵向

Vertical

N/10mm宽

≥60
≥30

≥110   ≥160
≥50    ≥70

≥180
≥80

≥230
≥100

横向

Horizontal

12

撕裂强度

Tear strength

纵向

Vertical

mN

≥450

≥900    ≥1350

≥1500

≥2000

横向

Horizontal

≥500

≥1000   ≥1500

≥1700

≥2300

13

击穿电压

Breakdown Voltage

空气中

In air

kv

≥0.88

≥1.37   ≥2.00

≥2.10

≥225

油中

In oil

≥4.40

≥7.00   ≥9.00

≥9.80

≥11.50

 

产品固化条件:

 

  首先在90℃±5℃环境下,保持3小时后升温至125±5℃,再保持6小时的条件下完全固化。

Product Solidification Conditions:
Firstly, temperature rises to 125±5℃ after maintaining 90℃±5℃ for three hours, and then the product completely solidifies after maintaining for six hours.
 

 

贮存:

 

  应贮存于干燥而洁净的室内,不得靠近火源、暖气或日光照射。贮存期为壹年;超过贮存期经检验,合格者仍可使用。

Storage:
Store in a dry and clean room, and keep away from fire or heat, or in the sun. The storage period is one year; qualified products exceeding the storage period can still be used.
 

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