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China Suppliers Factory High-Strength Water Blocking Filling Rope for Cable Moisture Protection
Product Description
Waterproof filling rope for cables is an important filling material in cable manufacturing. Its main function is to improve the waterproof performance of cables, while also enhancing the structural stability and durability of cables to a certain extent. The following is a detailed introduction to water blocking filling ropes for cables:
1 Definition and Function
Definition: Waterproof filling rope for cables is a specially designed filling material for the interior of cables, whose main components and structure have excellent waterproof performance.
- Water blocking effect: Through its unique material and structure, it effectively blocks moisture from penetrating into the interior of the cable, protecting the cable from moisture erosion and extending its service life.
- Structural support: Fill the gaps inside the cable to make the cable structure more stable and improve the compressive and tensile strength of the cable.
- Insulation protection: Enhance the insulation performance of cables to prevent insulation failure caused by moisture intrusion.
2 Materials and Classification
- Material: There are various materials for water blocking filling ropes used in cables, including water absorbing and expanding materials (such as water absorbing resins, water absorbing fibers, etc.) as well as synthetic fibers or composite materials with excellent water blocking properties. These materials typically have good water absorption, expansion, and weather resistance.
- Classification: According to the different materials and properties, waterproof filling ropes for cables can be divided into various types, such as organic filling ropes and inorganic filling ropes. Among them, organic filling ropes are mainly made of fiber materials such as cotton fibers, hemp fibers, polyester fibers, etc., while inorganic filling ropes may contain inorganic materials such as asbestos.
3 Application scenarios
Waterproof filling ropes for cables are widely used in various cables that require high waterproof performance, such as communication cables, power cables, submarine cables, etc. Especially for cables used in humid, rainy, or underwater environments, the role of water blocking filling ropes is particularly crucial.
Parameters
Common Specification Table
| Diameter (mm) |
Unit weight (g/m) |
Water absorption capacity (ml/g) |
Conductivity (Ko/m) |
Tensile strength (N/mm) |
Elongation (%) |
Temperature resistance (℃) |
Water content (%) |
|---|---|---|---|---|---|---|---|
| 2±0.3 | 3.2±0.5 | ≥50 | / | ≥50 | ≥20 | ≥125 | ≤9 |
| 2.5±0.3 | 5.2±0.5 | ≥50 | / | ≥50 | ≥20 | ≥125 | ≤9 |
| 3±0.3 | 5.9±1.0 | ≥50 | / | ≥60 | ≥20 | ≥125 | ≤9 |
| 4±0.5 | 6.8±1.0 | ≥50 | / | ≥60 | ≥20 | ≥125 | ≤9 |
| 5±0.5 | 7.9±1.0 | ≥50 | / | ≥60 | ≥20 | ≥125 | ≤9 |
| 6±0.5 | 9.6±1.0 | ≥50 | / | ≥90 | ≥20 | ≥125 | ≤9 |
| 7±1 | 15.1±2.0 | ≥50 | / | ≥90 | ≥20 | ≥125 | ≤9 |
| 9±1 | 25.2±2.0 | ≥50 | / | ≥90 | ≥20 | ≥125 | ≤9 |
| 10±1 | 27.3±3.0 | ≥50 | / | ≥100 | ≥20 | ≥125 | ≤9 |
| 12±2 | 29.9±3.0 | ≥50 | / | ≥100 | ≥20 | ≥125 | ≤9 |
| 16±3 | 40.9±5.0 | ≥50 | / | ≥150 | ≥20 | ≥125 | ≤9 |
| 20±3 | 63.0±5.0 | ≥50 | / | ≥200 | ≥20 | ≥125 | ≤9 |
| 22±3 | 70.0±5.0 | ≥50 | / | ≥200 | ≥20 | ≥125 | ≤9 |
| 30±4 | 100.0±10.0 | ≥50 | / | ≥250 | ≥20 | ≥125 | ≤9 |
| 34±3 | 125.0±10.00 | ≥50 | / | ≥250 | ≥20 | ≥125 | ≤9 |
| Support customizing other specifications | |||||||
Detailed image
Frequently Asked Questions (FAQ)
What is the primary function of a waterproof filling rope in cables?
The primary function is to block moisture from penetrating the cable interior, protecting it from moisture erosion, while also providing structural support to enhance cable stability and tensile strength.
What materials are typically used to manufacture water blocking filling ropes?
They are generally made using water-absorbing and expanding materials (such as water-absorbing resins and fibers) combined with synthetic or organic fibers (like polyester, cotton, or hemp) to ensure optimal swelling and weather resistance.
In which applications are waterproof cable filling ropes most commonly used?
They are highly recommended and widely used in power cables, communication cables, submarine cables, and any cabling systems installed in damp, rainy, or underwater environments.
Can the specifications of the waterproof filling ropes be customized?
Yes, we support the customization of various specifications, including custom diameters, unit weights, and tailored material properties to meet specific project demands.
What is the temperature resistance of these cable filling ropes?
Our waterproof filling ropes have a standard temperature resistance of ≥125℃, ensuring reliable performance and structural integrity under high-temperature operating conditions.