High Voltage Cable Paper (110-330kV)

Editor:【HAOJINGHUI INDUSTRIAL】 Time:【2014.09.09】 Views:【637】

1.      DESCRIPTION

The high voltage cable paper is made from superior sulfate insulating wood pulpunbleacheduncoated and no any adhesive or filling material. The thickness and texture are uniform.  Pinhole, undispersed fiber agglomerates and local defects are allowed by security requirements of transformer and cable manufacture. 

 

 

2. FEATURES

High physical performance

High Electrical insulation

Chemical stability

 

 

3. APPLICATIONS

Magnet wire of 110-330kV transformer

 High voltage Power cable

Insulating parts of high voltage equipment

 

 

4. TECHNICAL PARAMETER

ITEM

UNIT

STANDARD VALUE

Thickness

 

μm

50±3.0

75±5.0

125±7.0

175±10.0

Apparent density

g/cm3

0.85±0.05

Tensile strength

MD

kN/m

3.9

≥6.4

≥10.0

≥12.8

TD

≥1.9

≥2.8

≥4.8

≥6.4

Elongation

MD

%

≥1.8

≥2.0

TD

≥4.0

≥5.0

Conductivity of water extract

mS/m

≦4.0

Dielectric strength

kV/mm

≥9.5

≥8.5

≥8.0

≥7.4

Tear strength  (TD)

mN

≥220

≥500

≥1200

≥1800

Air permeability

μm/(Pa.s)

≦0.255

≦0.340

≦0.425

≦0.425

Ash content

%

≦0.28

Dielectric dissipation

 factor( tan δ) 100

%

≦0.22

Na content of ash

mg/kg

≦34.0

Water content

%

6.09.0


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