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2440 Polyster Varnished Fiberglass Cloth

1. It is mainly made from modified polyeser resin, no a … Continue reading 2440 Polyster Varnished Fiberglass Cloth

1. It is mainly made from modified polyeser resin, no alkali fiberglass cloth
2. Application: it is used as binding and liner insulation of motors and electrical equipment with high electric and mechanical properties. It can also resist the transformer oil.
3. Insulating temperature classification: Class F (155 centigrade)
Available thickness: 0.10mm 0.12mm 0.15mm 0.25mm
Available width: 15mm 20mm 25mm 1250mm
Package: In a roll.

 

Property Nominal thickness and tolerance
0.10±0.010 0.12±0.012 0.15±0.015 0.18±0.018 0.20±0.020 0.25±0.025
Hydrolysis resistance After 24h on 105±2℃, the varnish film will not be destroyed
Influence of glass varnished cloth on oil After 72h in 45 transformer oil on 105±2℃, the acid value is not more than 10mg KOH/g
Influence of oil on glass varnished cloth After 48h in 45 transformer oil on 105±2℃, the varnish film will not be destroyed
Lengthwise ≥70 ≥90 ≥100 ≥105 ≥110 ≥120
Crosswise ≥40 ≥50 ≥60 ≥65 ≥70 ≥80
Tensile Strength 45° Direction ≥40 ≥60 ≥65 ≥65 ≥70 ≥80
N/10mm ≥20 ≥25 ≥30 ≥30 ≥35 ≥35
Oblique cutting Before Varnishing
lap joint After ≥20 ≥20 ≥20 ≥30 ≥30 ≥30
Varnishing
2~12 2~12 3~15 3~15 4~16 5~20
Extend 10% along 45° direction
Lengthwise ≥1.5 ≥1.5 ≥2.0 ≥2.0 ≥2.5 ≥3.0
Elongation
rate at breaking% 45° direction ≥15 ≥15 ≥15 ≥18 ≥20 ≥20
Lengthwise ≥5 ≥6 ≥7.5 ≥10 ≥20 ≥25
Edge tearing strength (N) 45° direction ≥50 ≥60 ≥75 ≥80 ≥90 ≥120
23±2℃ ≥5.0 ≥6.0 ≥7.0 ≥7.0 ≥8.0 ≥9.0
Breakdown voltage (KV) 155±2℃ ≥2.5 ≥3.0 ≥3.5 ≥3.8 ≥4.0 ≥4.5
≥3.0 ≥3.0 ≥3.5 ≥4.0 ≥4.0 ≥4.5
Elongate 6% on 45° direction
≥2.5 ≥3.0 ≥3.5 ≥3.5 ≥4.0 ≥4.5
After humidity on 23±2℃

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