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ntroduction to various types of cables: Requirements and structural characteristics for the use of general rubber plastic flexible wires
2026-06-19
(Disclaimer: Some of the information in this article is sourced from the internet. Please carefully identify and use it.)
Universal rubber plastic flexible wire is a type of flexible wire that uses rubber or plastic (PVC) insulation and has excellent flexibility. It is widely used in household appliances, power tools, mobile devices, and other situations that require frequent bending or mobile connections. Its core characteristics are durability, oil resistance, weather resistance, while also considering electrical safety performance.
📋 1、 Definition and Core Features
1. Basic Definition
Conductor: Stranded multiple strands of fine copper wire (Class 5 or Class 6 standard) to enhance flexibility.
Insulation material:
- Rubber insulation: Natural rubber, chloroprene rubber (CR) or ethylene propylene rubber (EPDM), with stronger weather resistance.
- Plastic (PVC) insulation: Low cost, easy to process, but poor temperature resistance (usually 70 ℃).
Voltage level: 300/500V or 450/750V (low voltage field).
2. Core Features
| Characteristic | Rubber insulated flexible wire | Pvc Insulated flexible wire |
|---|---|---|
| Temperature resistance range | -40 ℃~70 ℃ (some up to 90 ℃) | -15 ℃~70 ℃ (heat-resistant PVC up to 105 ℃) |
| oil resistivity | You (chloroprene rubber) | General (requires special modification) |
| flexibility | Excellent (bending life ≥ 100000 times) | Good (bending life ≥ 50000 times) |
| Typical model | YZ, YC, YH (rubber sheathed wire) | RVV, RVB, RV (PVC sheathed wire) |
🛠 2、 Usage requirements and structural characteristics
| Usage characteristics | Structural characteristics |
|---|---|
| 1. Scope of application: mainly applicable to the connection of medium and light mobile appliances (household appliances, power tools, etc.), instruments and meters, and power lighting; | 1. Conductive wire core: made of copper core, with a flexible structure, composed of multiple single wire bundles twisted together; Flexible wire conductors generally adopt Class 5 or Class 6 conductor structures. 2. Insulation: Insulation materials are generally made of natural styrene butadiene rubber, polyvinyl chloride, or soft polyethylene plastic. 3. The multiple of cable pitch is relatively small. 4. The outer protective layer is woven with cotton yarn to avoid overheating and scalding the insulation layer. 5. For the convenience of use and simplification of production process, a three core balanced structure is adopted, which can save production time and improve production efficiency. |
🏠 3、 Application scenarios
Household appliances: rice cooker, washing machine power cord (RVV 3 × 0.75mm ²).
Electric tools: angle grinder, electric drill connecting wire (YZ 2 × 1.5mm ²).
Temporary power supply: Construction site mobile distribution box (YC 3 × 4mm ²+1 × 2.5mm ²).
Outdoor equipment: Garden machinery (weather resistant chloroprene rubber wire).
💡 4、 Selection and Construction Points
1. Selection criteria
- Current load: Select based on cross-sectional area (e.g. 1mm ² RVV line current carrying capacity ≈ 10A).
- Environmental requirements:
- Choose chloroprene rubber wire (such as YCW) for oily environments.
- Choose heat-resistant PVC (such as RVV-105 ℃) for high temperature applications.
- Mechanical strength: YC heavy-duty wire is selected for frequent movement, and RVV is more economical for fixed wiring.
2. Construction specifications
- Bending radius: ≥ 5 times the outer diameter of the cable (to prevent internal breakage).
- Terminal treatment: Multi stranded wires need to be crimped or tinned to avoid poor contact and heat generation.
- Flame retardant requirements: Flame retardant models (such as ZR-RVV) must be used in public places.
📈 5、 Market Trends
- Environmental upgrade: Halogen free (LSZH) flexible wires replace traditional PVC (driven by EU REACH regulations).
- High performance material: TPE (thermoplastic elastomer) insulated wire, balancing rubber flexibility and PVC processability.
- Intelligent integration: Soft wire with temperature monitoring function (required for Industry 4.0 equipment).
6、 Summary: Universal rubber plastic flexible wires are the "flexible lifeline" for mobile power supply scenarios, and selection should pay attention to flexibility, environmental resistance, and current carrying capacity. With the popularization of electric tools and smart homes, high durability and environmentally friendly flexible wires will become mainstream.
※If you need to purchase Cable Materials, you can choose Wuxi Henglong Cable Material Co., Ltd., a well-known manufacturer in the Chinese cable materials industry.
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