transformers insulation varnished cloth Alkyd varnished glass cloth

Specifications insulation varnished cloth Alkyd varnished glass cloth

1. passed UL ROHS

2. as coil insulation for oil-immersed transformer

insulation varnished cloth Alkyd varnished glass cloth Basic Material: E-glass fiber cloth
Impregnated Varnish: Alkyd resin
Temp. class: B(130)   insulation varnished cloth Alkyd varnished glass cloth's Features and Applications:
- Alkyd varnished glass cloth has excellent dielectric, mechanical property and heat resistance, good oil, fungus and humidity-heat resistance
- Alkyd varnished glass cloth can be used as coil insulation for oil-immersed transformers and oil circuit breakers.

insulation varnished cloth Alkyd varnished glass cloth's Availability:
-Thickness: 0.06mm-0.25mm
-Form: roll (width: 900-1500mm), strips (width: >10mm   insulation varnished cloth Alkyd varnished glass cloth's technical data:  

Properties

Units

Values

Nominal thickness

mm

0.10

0.12

0.15

0.18

0.20

Oil resistance

/

Not lower than breakdown voltage at 23±2°C

Humidity-heat resistance

/

Varnished film shall not be peeled off

Flexibility resistance

/

Not break the medium value of breakdown voltage at bended place shall not be less 50% than that at unbended place

Tensile strength

Length

N/10mm

≥65

≥85

≥105

≥111

≥118

Cross

≥45

≥52

≥65

≥78

≥85

45°

≥40

≥60

≥65

≥78

≥70

On lapping place cut on bias

Before impregnation

≥20

≥25

≥30

≥30

≥30

After impregnation

≥20

≥20

≥20

≥30

≥30

Breakdown voltage

Under 23±2°C

Medium

kV

≥5.0

≥6.0

≥7.0

≥8.0

≥9.0

Min

≥4.0

≥4.5

≥6.0

≥6.5

≥7.0

Under 130±2°C

Medium

≥2.5

≥3.0

≥3.5

≥4.0

≥4.5

The quality warranty period

Six months(under 25°C)