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Home » Products » Cables » Electrical Wire » Muti-Core Cable Copper Core Electrical Rvv Power Cable Flexible Cable

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Muti-Core Cable Copper Core Electrical Rvv Power Cable Flexible Cable

Focusing on technological innovation, the company operates 6 internationally advanced production lines for medium-, high-, and extra-high voltage cables, including:
A German TROESTER 500kV VCV line for power cables
A Finnish MAILLEFER 220kV CCV line for power cablesBoth equipped with German SIKORA online eccentricity measurement systems.
Testing capabilities include a 700kV AC resonant test system (USA Phenix) and over 200 sets of world-class production/testing equipments, ensuring annual output of 2 million km of cables compliant with national/international standards or custom specifications.
With 150+ sales offices nationwide, our products serve diverse sectors: power, telecom, aviation, rail, automotive, appliances, petrochemical, mining, and metallurgy. Notable projects include:
High-speed railways (Hada, Ninghang, Jinqi)
Subways (Shenzhen Line 5)
Major infrastructure (Qingdao Gulf Bridge, Beijing Workers' Gymnasium)
Grid upgrades (110kV cables in Inner Mongolia, Guangxi, etc.)
Reliable performance in these applications has earned consistent positive feedback from users.
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  • RVV

  • 4E

GB/T 5023-2008/IEC60227:2007
This international standard governs PVC-insulated Multi-Core Cables with a rated voltage of 450/750V or lower, including widely used models like BV, RV, BVV, and RVV Power Cables. These cables are designed for residential and commercial electrical systems, ensuring reliable power transmission. The Copper Core Electrical variants, such as RVV Flexible Cables, provide exceptional conductivity and flexibility, making them ideal for dynamic installations in appliances, machinery, and control panels.

JB/T 8734-2012
This specification applies to PVC-insulated Flexible Cables and Multi-Core Wires rated for 450/750V and below. Key models include BV, BVR, RVV, RVS, and RVVP, which are optimized for both fixed wiring and flexible applications. The Copper Core construction ensures minimal energy loss, while the Multi-Core design (e.g., RVV Power Cable) supports complex circuits requiring multiple conductors. Flame-retardant and fire-resistant variants (e.g., ZR-BV, NH-BVR) enhance safety in high-risk environments.

Example Product Models:

  • RVV (Rated Voltage 300/500V): Multi-Core Copper Core Flexible Cable with PVC sheath, ideal for portable devices and industrial equipment.

  • BVR: Soft Copper Core PVC-insulated wire for junction boxes and tight spaces.

  • WDZ-BER: Halogen-free, low-smoke flame-retardant Flexible Cable for public infrastructure.


Performance Requirements

  1. Voltage Ratings:

    • 450/750V: Standard for heavy-duty appliances and fixed installations.

    • 300/300V: Used for low-power devices like lamps and small electronics.

    • RVV Power Cable typically adopts 300/500V for balanced flexibility and durability.

  2. Temperature Tolerance:

    • 70°C: Standard operating temperature for PVC-insulated Copper Core cables.

    • 90°C: High-temperature variants for environments near heat sources.

  3. Installation Guidelines:

    • Minimum laying temperature: 0°C (to prevent insulation cracking).

    • Conduit or trunking recommended for mechanical protection, especially for Flexible Multi-Core Cables.

  4. Bending Radius:

    • 4× Cable Diameter (D): For compact RVV Power Cables (D ≤25mm).

    • 6× Cable Diameter (D): For thicker Multi-Core Cables (D ≥25mm) to avoid conductor damage.

Application Scenarios:

  • Household Wiring: Copper Core BV/BVR cables for lighting and sockets.

  • Industrial Machinery: RVV Flexible Cables for robotic arms and moving parts.

  • Public Spaces: WDZ-BE halogen-free cables in subways and hospitals.


Conductor Specifications:

  1. Copper Core Requirements:

    • Annealed copper wires (bare or tinned) ensure high conductivity and oxidation resistance.

    • Stranded conductors in Flexible Cables (e.g., RVV) enhance bendability.

  2. Aluminum Conductors:

    • Cost-effective alternative for fixed installations but limited to non-flexible uses.

Insulation & Sheathing:

  • PVC: Standard material for insulation and outer sheath, balancing flexibility and flame resistance.

  • Polyolefin: Used in WDZ-BE cables for halogen-free, low-smoke properties.

Multi-Core Cable Construction:

  • Twisted Pairs (RVS): Reduce electromagnetic interference in signal lines.

  • Shielded Variants (RVVP): Foil or braided shielding for noise-sensitive applications.

Quality Assurance:

  • Compliance with GB/T 5023 and JB/T 8734 ensures mechanical strength and electrical safety.

  • RVV Power Cables undergo rigorous flexibility tests to withstand repeated bending.


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