TVVB2G Dual‑Steel Reinforced Flat Elevator Air‑Conditioner Cable | 3×2.5 Power & Travel Flat Lift Tether Cable

Ensuring consistent power delivery to a moving elevator car is an engineering challenge. Standard cables often struggle with the constant tension and bending stress required for high-rise lift systems. The TVVB2G Dual-Steel Reinforced Flat Cable is engineered specifically to solve this problem.

Manufactured by Shanghai Rousheng Wire & Cable Co., Ltd., this cable integrates dual galvanized steel wires into the flat structure. This design significantly increases tensile strength, making it the ideal tether for elevator air-conditioning units and suspension systems where reliability is non-negotiable.

Why Suspension Strength Matters

In modern elevator systems, cables don’t just carry electricity; they carry their own weight over long vertical distances.

• Reinforced for Vertical Travel: Unlike standard TVVB cables, the TVVB2G designation means two steel ropes are embedded parallel to the copper cores. This absorbs the tensile load, preventing the copper conductors from stretching or breaking under the cable’s own weight.
• Built for Motion: We use a special PVC compound that remains flexible even after millions of bending cycles. It resists cracking during continuous travel, ensuring the air conditioning unit stays powered without interruption.
• Space-Saving Flat Design: The flat profile allows for a smaller bending radius compared to round cables, making it easier to stack and organize within the elevator shaft or trailing chain.

Technical Specifications

Primary Applications

This cable is specifically designed for the vertical suspension environments found in:

• Elevator Air-Conditioning Systems: Providing dedicated 3-core power to roof-mounted AC units.
• Lift Lighting & Auxiliary Power: Ensuring stable power transfer for fans and lighting.
• High-Rise Building Hoists: Suitable for installations requiring long suspension lengths (up to 80 meters free suspension recommended).

The Shanghai Rousheng Difference

With over 100 varieties of special cables in our portfolio, Shanghai Rousheng Wire & Cable Co., Ltd. doesn’t just extrude plastic; we engineer solutions for motion. Our R&D focuses on “High Flex” capabilities. We understand that a cable failure in an elevator shaft isn’t just an inconvenience—it’s a costly maintenance downtime. Every meter of TVVB2G is tested for insulation integrity and tensile consistency before it leaves our facility.

Frequently Asked Questions (FAQ)

Q: What is the difference between TVVB and TVVB2G cables?
A: The “2G” stands for two steel wires (Steel Wire Reinforced). Standard TVVB cables rely solely on the copper and PVC for strength. TVVB2G adds two galvanized steel ropes to bear the mechanical load, making it suitable for longer travel heights and heavier suspension loads.

Q: Can this cable be used outdoors?
A: While the PVC is durable, this specific model is designed primarily for the controlled environment of an elevator shaft. For direct exposure to harsh outdoor sunlight or extreme weather, please contact our engineering team for a UV-stabilized or PUR-jacketed alternative.

Q: What is the maximum suspension length for this 3×2.5 model?
A: Thanks to the dual steel reinforcement, this cable can safely handle longer free-hanging lengths than standard flat cables. However, for heights exceeding 80 meters, we recommend consulting our technical team to calculate the specific load and safety factors.

Q: Is the copper conductor pure?
A: Yes. We use Class 5 stranded oxygen-free copper to ensure maximum conductivity and flexibility. We do not use CCA (Copper Clad Aluminum) in our industrial cables.