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Class H Epoxy Glass Laminated Sheet Electrical Insulation Board

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Class H Epoxy Glass Laminated Sheet Electrical Insulation Board

Model Number : 3250

Place of Origin : China

MOQ : 1000kgs

Price : basing on size and quantity

Payment Terms : T/T

Supply Ability : 200000kgs per month

Delivery Time : 30 working days

Packaging Details : pallet

Density : 1.8-2.0 g/cm3

Water absorption : ≤ 22mg

Tensile strength(MD) : ≥300MPa

Relative Permittivity (50Hz) : ≤ 5.5

Dielectric dissipation (50Hz) : ≤ 0.04

Application : Used in electrical, electronic, and mechanical fields

Electric strength perpendicular to laminations (at 90℃±2℃ in oil), 1mm in thickness : ≥ 14.2 kV/mm

Breakdown voltage parallel to laminations (at 90℃±2℃ in oil) : ≥ 35kV

Insulation resistance (after 24 immersion in water) : ≥ 5.0 × 10^4 MΩ

Flexural strength perpendicular to laminations (normal) : ≥ 380MPa

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Product Description:

The Epoxy Glass Laminated Sheet is a high-performance industrial laminated sheet. It is manufactured by hot-pressing chemically treated non-alkali glass fiber cloth impregnated with high-Tg epoxy resin, making it a Class H heat-resistant insulating material. This product features high mechanical strength at elevated temperatures and stable electrical properties under high humidity conditions, and is widely used in electrical, electronic, and mechanical fields that demand high reliability.

Advantages:

Excellent High-Temperature Resistance: Class H insulation, it maintains high mechanical strength at elevated temperatures.
High Mechanical Strength: The glass cloth substrate provides outstanding flexural and impact strength, making it suitable for structural components.
Stable Electrical Properties: It retains excellent insulation properties and low dielectric loss even in high-humidity environments.

Technical Parameters:

Attribute	Value
Density	1.80~2.00 g/cm3
Water absorption (3mm in thickness)	≤ 22mg
Flexural strength perpendicular to laminations (normal)	≥ 380MPa
Tolerances on thiness	1±0.18mm / 2±0.28mm
Tensile strength	≥ 300MPa
Dielectric dissipation (50Hz)	≤ 0.04
Relative Permittivity (50Hz)	≤ 5.5
Electric strength perpendicular to laminations (at 90℃±2℃ in oil), 1mm in thickness	≥ 14.2 kV/mm
Insulation resistance (after 24 immersion in water)	≥ 5.0 × 10^4 MΩ
Breakdown voltage parallel to laminations (at 90℃±2℃ in oil)	≥ 35kV

Applications:

High-Voltage Electrical Equipment: Used for insulation plates and support components in high-voltage switchgear and transformers.
Large Electric Motors: Serves as key components in generators and motors.
Rail Transportation: Applied in insulation parts for locomotive traction motors and control systems.

Class H Epoxy Glass Laminated Sheet Electrical Insulation Board

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