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Electrical Grade Cable Insulation Paper for Motors & Transformers

Our Cable Insulation Paper is manufactured from 100% high-quality sulfate insulating wood pulp. It is unbleached, uncoated, and unsized, ensuring a clean and stable insulation material with even thickness, uniform texture, and a smooth yet tough surface. The paper offers stable dielectric and chemical properties, along with excellent mechanical strength. It is widely used as an electrical insulation wrap for aluminum and copper conductors, as well as for interlayer insulation in motors, transformers, capacitors, and oil-paper insulated power cables.

Electrical Grade Cable Insulation Paper for Motors & Transformers

Features & Benefits:

1. Soft, tough, and uniform structure with consistent thickness

2. Excellent mechanical properties, including high tensile, folding, and tearing strength, making it easy to wrap

3. Superior electrical performance with high dielectric strength and low dielectric loss

4. Resistant to high temperatures, high pressure, and vulcanization processes

5. Free from metal particles, sand, and conductive acidic substances; maintains stable performance after impregnation with insulating liquids

 

Basic Specificaitions:

Item Units Values
Nominal thickness μm 80 130 170
Thickness Deviation μm ±5.0 ±7.0 ±8.0
Density g/cm3 0.90±0.05
Tensile Strength MD KN/m ≥6.2 ≥11.0 ≥13.7
TD ≥3.1 ≥5.2 ≥6.9
Elongation MD % ≥1.9
TD ≥5.4
Transverse tearing mN ≥540 ≥1020 ≥1390
Lateral folding resistance times ≥1200 ≥2200 ≥2500
Dielectric strength kV/mm ≥8.0
Dry paper medialoss 100°℃ % ≤0.50
Conductivity of water extract mS/m ≤8.0
PHvalue of water extract / 6.5-8.5
Air Permeability μm/(Pa-s) ≤0.510
Ash Content % ≤0.7
Moisture Content % 6.0-9.0
Storage Conditions It should be stored in the dry,clean,and good ventilation,temperature less than 40℃, no fire warmer, no exposure in sun.
Period of Storage Twelve Months
Packaging Roll packing

 

Application:

* Insulation layer for oil-paper insulated power cables

* Electrical insulation wrapping for aluminum and copper conductors

* Inter-turn and inter-layer insulation in motors and transformers

* Insulation material for capacitors and other electrical equipment

cable insulation paper application

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