Insulation Paper
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Insulation Paper

Insulation Paper

We are a manufacturer specializing in paper, film and insulation materials. We provide a full range of insulation paper products: including cable paper, capacitor paper, DDP paper, aramid paper, DMD paper, epoxy pre-impregnated DMD paper, Nomex paper, NHN paper, NMN paper, AHA paper, AMA paper,...

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Product Introduction
insulated paper

We are a manufacturer specializing in paper, film and insulation materials.

We provide a full range of insulation paper products: including cable paper, capacitor paper, DDP paper, aramid paper, DMD paper, epoxy pre-impregnated DMD paper, Nomex paper, NHN paper, NMN paper, AHA paper, AMA paper, PMP paper, etc.


Product customization range:thickness, width, temperature resistance level, logo customization

 

Products Description

 

Electrical insulation cable paper:

 

Cable paper, also known as insulation paper, is an indispensable material in power transmission systems. Its main component is wood cellulose, a natural fiber material that gives cable paper good insulation properties and mechanical strength. Cable paper is made of 100% high-quality sulfate insulation wood pulp, and is finely processed and specially treated to ensure its excellent electrical performance and durability.

Product advantages:
It has good high temperature resistance and electrical insulation, and can act as an insulating material in oil-immersed transformer windings.
It has good stability, and the service life of the product is between 3-5 years.

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Product thickness: 0.1-0.5mm 

No.

Item

unit

Q/JLLS 20471 - 2023 Requirement

Electric Power Cable Paper DDP - 80 Result

 

1

Thickness

μm

80±5%

81.3

 

2

Density


g/cm³

0.90

0.95

 

3

Tensile strength


MD

CD

kN/m

6.2
3.1

8.3
4.2

4

Elongation


MD

CD

%

2.0
4.0

2.7
8.5

5

Tearing resistance


CD

mN

500

902

6

Electrical strength(AC)


kV/mm

8.0

10.5

 

7

pH of water extract

 

6.5 - 8.5

7.0

 

8

Conductivity of water extract


mS/m

10.0

3.0

 

9

Air permeability


ml/min

35

12

 

10

Ash content


%

0.7

0.3

 

11

Moisture content

%

6.0 - 9.0

7.5

 

12

Smoothness


s

30

42

 

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DDP Insulation paper

DDP insulating paper is a special modified epoxy resin coated on high-performance insulating paper in a diamond shape. It is widely used in interlayer insulation and turn insulation of oil-immersed power transformers.

DDP Insulating paper
  • Raw materials: kraft pulp + epoxy glue
  • Glue content: conventional 10 filaments, 5 filaments

Diamond glue point customization:

-Different color pastes
-Different sizes (conventional is 8*8/9*9)
-Large diamond glue points

  • Application transformer range: ≤35KV or less
  • Commonly used in composite scenes: copper foil + DDP/copper wire + DDP winding
  • Conventional thickness: 0.08mm, 0.10mm, 0.13mm, 0.18mm, 0.25mm, 0.30mm, 0.35mm, 0.40mm, 0.50mm
  • Maximum slitting width: 100mm
  • Weight per roll: 100KG-200KG

 

ITEM

TYPICAL VALUES

MATTER OF FACT

Base paper thickness mm

0.15±10%

0.156

Resin thickness single side mm

0.006 - 0.012mm

0.008

DDP thickness (just for reference)

Base paper + resin

0.169
(0.167, 0.170, 0.169)

Width: mm

950±5

953 - 955

Apparent density: g/cm³

0.93 - 1.02

0.95

Moisture content , %

4.0 to 8.0 %

7.2

PH water extract:

6.5 to 8.5

6.8

Ash content, % maximum

≤0.8

0.5

Conductivity of aqueous extract Ms/m

≤8.0

2.7

Elongation MD %
CMD %

≥2.1
≥7.2

2.3
7.4

Edge Internal tearing resistance N
Machine direction:
Cross machine direction

 

53.4
56.3

Tear strength, mN
Cross machine direction:

≥1700

1900

Tensile strength, N/mm²
Machine direction,
Cross machine direction:

≥70
≥35

97.3
63.3

Dielectric breakdown:
(volts/layer ,dry test)

≥1200

1867
(1900, 1800, 1900)

Bond strength: Kpa

≥450

867

product-1600-271

DMD insulation paper

6630 DMD Insulation paper

 

6630 DMD, this product is a composite insulation material product made of a layer of polyester film coated with an adhesive, one side of which is a polyester fiber non-woven fabric, and calendered. It is referred to as DMD.
6630 DMD composite material has good mechanical strength, dielectric properties and high heat resistance (B grade). It is a standardized insulation material for Y series motors and can be used as slot insulation, inter-turn and inter-layer insulation, liner insulation core and transformer insulation for small and medium-sized motors.

1741832508806

 

Product name: Polyester film, polyester fiber, non-woven fabric, soft composite material

Product color: white

Thickness: 0.10mm-0.50mm

Width: 980mm-990mm

Taping: 10mm wide or more

Slice: Maximum 1000mm*900mm

 

No.

Indicator Name

Unit

Indicators

1

Nominal Thickness

mm

0.15, 0.18, 0.20, 0.23, 0.25, 0.30, 0.35, 0.40, 0.45

2

Thickness Limit Deviation

mm

±0.02, ±0.025, ±0.03, ±0.03, ±0.03, ±0.03, ±0.035, ±0.040, ±0.045

3

Nominal Basis Weight and Limit Deviation

g/m²

140±20, 190±28, 220±33, 260±39, 300±45, 350±52, 425±63, 500±75, 560±84

4

Nominal Thickness of Film

mm

0.05, 0.075, 0.10, 0.125, 0.15, 0.19, 0.25, 0.30, 0.35

5

Tensile Strength

N/10mm

Longitudinal (Unbent): ≥80, ≥120, ≥140, ≥180, ≥190, ≥270, ≥320, ≥340, ≥370
Longitudinal (Bent): ≥80, ≥105, ≥120, ≥150, ≥170, ≥200, ≥300, ≥320, ≥350
Transverse (Unbent): ≥80, ≥105, ≥120, ≥150, ≥170, ≥200, ≥300, ≥320, ≥350
Transverse (Bent): ≥70, ≥90, ≥100, ≥120, ≥130, ≥150, ≥200, ≥220, ≥250

6

Elongation

%

Longitudinal (Unbent): ≥15
Longitudinal (Bent): ≥10 (some have other values)
Transverse (Unbent): ≥20
Transverse (Bent): ≥10 (some have other values)

7

Breakdown Voltage

KV

≥6, ≥7, ≥9, ≥10, ≥12, ≥15, ≥18, ≥20, ≥22

8

Normal - state Adhesion

-

No delamination

9

Hot - state Adhesion (155±2℃, 10 min)

-

No delamination, no blistering, no glue flow

10

Temperature Index

130

product-1600-271 6641 DMD Insulation paper

 

 

6641 DMD-F is made of 6020/6021 transparent or milky polyester film with 7031 electrical non-woven fabric on both sides. The adhesive used is acid-free and high temperature resistant.

Performance:

6641 DMD Insulation paper has good mechanical and electrical properties, temperature grade F (155℃).

Coil: Uncut width 1005mm, cut width 990mm
Sheet: Any length and width within 990*1000mm
Reel: 5mm-990mm
Roll diameter: not less than 300mm
Core size: conventional 76mm

6641 DMD

 

 

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