Description
Description
SIDA Cable Paper is manufactured from 100% high-grade, chemical-purified cellulose pulp using advanced refining and sheet-forming techniques.
Its high electrical insulation performance and controlled porosity make it ideal for oil-impregnated paper-insulated cables (PILC) and resin-impregnated cables.
The paper’s high mechanical strength and uniform thickness ensure stability during winding and impregnation. Its excellent oil absorption capacity enables quick and uniform saturation with insulating oil, reducing the risk of partial discharge and improving dielectric breakdown strength.
SIDA offers different types of cable paper—slitted rolls, reels, and spooled tapes—to meet various voltage levels (up to 500 kV) and manufacturing requirements.
Each batch undergoes strict moisture, density, and conductivity control, in compliance with IEC 60554 and IEC 60641 standards.
Main Features:
Made from 100% pure cellulose
High oil absorption and low dielectric loss
Uniform thickness and excellent mechanical integrity
High chemical purity (acid-free)
Compatible with mineral oil and synthetic ester oils
Compliant with IEC and ISO standards
Eco-friendly and recyclable material
Technical Data
| Test Report | ||||||
| Product name:Cable insulating paper | Thickness:0.08mm | Test time：2026.1 | ||||
| Item | Unit | Requirement standard | Result | Test method | ||
| Thickness and tolerances | µm | 80±4.0 | 80.5 | IEC60641-2.2004 | ||
| Density | g/cm3 | 0.90±0.05 | 0.93 | |||
| Tensile Strength | MD | N-m/g | ≥6.2 | 7.1 | ||
| CD | ≥3.1 | 3.5 | ||||
| Elongation strength | MD | % | ≥2.0 | 2.3 | ||
| CD | ≥5.4 | 8.4 | ||||
| Tearing Strength | CD | mn.m2/g | ≥510 | 680 | ||
| Moisture | % | 6.0～8.0 | 7.3 | |||
| Ash content | % | ≤0.7 | 0.35 | |||
| Conductivity of water extract |
mS/m | ≤8 | 4.2 | |||
| Air permeability | μm/(Pa·s) | 0.51 | 0.107 | |||
| Dielecric strength | kV/mm | ≥8 | 12.7 | |||
| Testing result | Pass | |||||
| Test Report | ||||||
| Product name:Cable insulating paper | Thickness:0.05mm | Test time：2026.1 | ||||
| Item | Unit | Requirement standard | Result | Test method | ||
| Thickness and tolerances | mm | 0.05±0.003 | 0.051 | IEC60641-2.2004 | ||
| Compactness | g/cm3 | 0.85-1.10 | 0.89 | |||
| Tensile index | MD | N-m/g | ≥85 | 92 | ||
| CD | ≥35 | 46 | ||||
| Extensibility | MD | % | ≥2.0 | 2.16 | ||
| CD | ≥4.0 | 7.99 | ||||
| Tear strength | CD | mn.m2/g | ≥7.5 | 8.8 | ||
| Moisture | % | 6.0～8.0 | 6.8 | |||
| Ash content | % | ≤0.7 | 0.3 | |||
| Conductivity of water extract |
mS/m | ≤5 | 4.2 | |||
| Water extract PH | / | 6.5-8.5 | 6.9 | |||
| Electrical strength | kV/mm | ≥7.5 | 14.5 | |||
| Testing result | Pass | |||||
Note:The product specifications provided are for reference purposes only. Please refer to the actual product for final specifications. We also offer various sizes and thicknesses to meet your specific needs. For further customization, please contact us.
Applications
SIDA Cable Paper is used for insulation and wrapping in various types of power transmission and distribution cables, particularly in oil-impregnated and solid-insulated systems.
Typical applications include:
Oil-impregnated paper-insulated cables (PILC)
High-voltage power cables (up to 500 kV)
Transformer lead and joint insulation
Resin-bonded and laminated cable components
Telecommunication cables requiring dielectric isolation
Paper-laminated insulation systems for subsea or underground installations
Its flexibility and consistent quality make it a trusted choice for cable manufacturers seeking insulation materials with superior electrical reliability and easy processability.
FAQ
Q1: What is cable paper used for?
Cable paper is used as an insulating and wrapping material in electrical cables, helping to prevent current leakage, breakdown, and overheating.
Q2: What type of cables can use SIDA cable paper?
It is suitable for oil-filled, paper-insulated lead-covered (PILC), and resin-impregnated power cables, as well as for medium and high-voltage applications.
Q3: Is SIDA cable paper compatible with transformer or synthetic oils?
Yes. It performs excellently with mineral transformer oil, ester oil, and silicone oil, ensuring stable impregnation and dielectric properties.
Q4: What thicknesses are available?
SIDA provides cable paper in thicknesses ranging from 0.05 mm to 0.5 mm, available in rolls, reels, or slit tapes.
Q5: What is the thermal class of SIDA cable paper?
It is rated Class A (105 °C), in accordance with IEC 60085 standards.