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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)
What is the main purpose of waterproof filling ropes in cables?
The primary purpose is to enhance the waterproof capabilities of cables, preventing moisture penetration, while also providing structural support to fill gaps and reinforcing insulation protection.
What materials are waterproof filling ropes made of?
They are made of various materials, typically categorized into organic materials (such as cotton, hemp, and polyester fibers) and inorganic materials (which may contain asbestos), featuring water-absorbing and expanding resins or fibers.
In what environments are these cable filling ropes used?
They are extensively used in high-waterproof requirement settings, such as communication cables, power cables, and submarine cables, especially in humid, rainy, or underwater environments.
What is the temperature resistance of the filling ropes?
According to the specification table, the temperature resistance for the standard models is ≥125℃.
Is it possible to order customized sizes and specifications?
Yes, customization is supported for other specifications beyond the standard diameter options listed in the parameter table.