Development of a New Traveling Communication Photoelectric Composite Cable for Elevators and Overhead Cranes

Time: 2025-03-18 14:01:28 Source: Henan Province Jianyun Cable Co., Ltd.

Introduction

As urbanization and 5G technology continue to expand, smart elevators and automated overhead cranes require high-speed, stable communication networks. Traditional copper-based elevator cables struggle to meet the increasing demands for high-bandwidth, low-latency communication. This study introduces a new traveling communication photoelectric composite cable that integrates fiber optic and power transmission units, ensuring reliable data transmission and enhanced durability for elevator and crane applications.

1. Key Features of the New Composite Cable

1.1 Integration of Optical and Electrical Transmission

Unlike conventional elevator cables that rely solely on copper conductors, the new composite cable integrates:
✔ Optical fiber units → Ensuring high-speed data transmission for 5G, video streaming, and control signals.
✔ Flexible electrical conductors → Providing power supply to elevator systems.
✔ Reinforced structure → Improving durability during constant movement.

1.2 Structural Improvements

The cable adopts a flat design, maintaining the traditional space-saving benefits while enhancing mechanical stability. The optical fiber unit is placed at the center, surrounded by protective elements to minimize bending stress.

2. Technical Performance Comparison

2.1 Electrical & Optical Performance

Parameter	Test Condition	Requirement	Measured Value
Optical Fiber Attenuation (1310 nm)	Normal temperature & pressure	≤ 0.4 dB/km	0.35 dB/km
Optical Fiber Attenuation (1550 nm)	Normal temperature & pressure	≤ 0.3 dB/km	0.28 dB/km
DC Resistance (1.5 mm² Conductor)	20°C	≤ 13.3 Ω/km	12.8 Ω/km

2.2 Mechanical Durability

Test	Condition	Result
Tensile Strength	Long-term load: 900 N	No damage
Bending Test	250,000 cycles	No fiber breakage
Low-Temperature Flexibility	-20°C bending	No visible cracks

3. Key Innovations in Design

3.1 Optical Fiber Unit Development

To withstand continuous bending and movement, the fiber optic unit is designed with:
✔ Micro-bundle fiber optic technology → Enhancing flexibility while preventing signal degradation.
✔ Non-metallic reinforcement (e.g., aramid fibers) → Providing tensile strength without affecting flexibility.

3.2 Improved Sheath Materials

Outer Sheath: A specially formulated cold-resistant PVC ensuring durability even at -20°C.
Inner Sheath: A newly developed halogen-free flame-retardant polyolefin (EVA-based) that enhances mechanical resilience while maintaining flexibility.

4. Industrial Applications

Smart Elevators – Enables real-time data transmission for video monitoring, AI-based predictive maintenance, and remote diagnostics.
Automated Cranes – Supports unmanned operation with enhanced signal reliability in harsh industrial environments.

5. Conclusion

The new photoelectric composite cable meets the high-speed transmission and durability needs of modern elevators and automated cranes.It improves mechanical performance, reduces signal attenuation, and enhances operational reliability in smart urban infrastructure.
The combination of optical fiber and electrical conductors makes it an ideal solution for next-generation elevator communication systems.

6. Keywords

Photoelectric Composite Cable
Elevator Communication Systems
5G Signal Transmission
Smart Elevators and Cranes
High-Durability Optical Fiber Cables

7. References

Zhu Pengyu, Miao Weiwei, et al. (2024). Development of a New Traveling Communication Photoelectric Composite Cable for Elevators and Overhead Cranes. Wire & Cable, No.5, 2024. DOI: 10.16105/j.dxdl.1672-6901.202405002
GB/T 7424.21-2021 – General Specifications for Optical Cables, Mechanical Performance Testing.
T/CEA 022-2019 – Standards for Traveling Cables in Elevator Applications.