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356 Polyester-imide glass cloth laminted tube
     

It is created from electrical glass cloth with alkali-free that has been impregnated with polyester-imide resin under pressure and heat. The thermal grade is class H insulation. With excellent electrical. Physical and mechanical property, wet-resistant and radiation-proof. Used for the insulating slots. windings. gaskets. strips of the dry-type transformer/railway transformer/traction motor/electrical equipment etc.

Tubes: Thickness of wall 1.5-200mm Diameter: |µ 6-2000mm

Technical data

No Specification Unit Index

1 Flexural strength 1.6-3mm % <= 1 for length

>= 3mm <= 0.5 for length

2 Density g/ ?M 3 >= 1.60

3 Flexural strength at room temperature Mpa >= 117.6

4 Compressive strength Mpa >= 68.6

5 Shearing strength Mpa >= 9.8

At room

temperature >= 1.0X10 5

6 Volume resistively After wet M Ω m >= 1.0X10 3

180 oC >= 1.0X10 3

inner diameter inner diameter

<= 6-25mm >= 26mm

Electrical strength perpendicular 1.5mm 7 12

7 to lamination in transformer oil at 2.0mm KV 10 14

90 +- 2 oC (5 min)/thickness of wall 2.5mm 13 16

3.0mm 15 18

 

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