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China Suppliers Factory Cable Water Blocking Filling Rope for Moisture Protection and Insulation
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.
Function:
- 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)
Q1: What is the main function of a waterproof filling rope in cables?
A: The main function is to prevent water and moisture from penetrating the cable core, ensuring structural stability, filling internal gaps, and enhancing insulation protection to extend the cable's lifespan.
Q2: What materials are commonly used for cable water blocking filling ropes?
A: They are typically made from water-absorbing and expanding materials (like water-absorbing resins and fibers) as well as organic fibers (cotton, hemp, polyester) or inorganic composite materials.
Q3: Can these waterproof filling ropes support customization?
A: Yes, in addition to our standard specifications ranging from 2mm to 34mm in diameter, we support customized specifications to meet specific cable manufacturing requirements.
Q4: What is the temperature resistance of the waterproof filling rope?
A: Our standard waterproof filling ropes feature a high temperature resistance of ≥125℃, allowing stable performance in demanding environments.
Q5: In which environments are these filling ropes most commonly applied?
A: They are widely used in communication cables, power cables, and submarine cables, especially those deployed in humid, rainy, or underwater environments.