Elevator Traveling Cable 

The Complete Guide to Selection, Classification, and Materials

A elevator traveling cable is a critical safety and communication component in modern elevator systems. It ensures continuous transmission of power, control signals, safety circuits, and multimedia data between the control cabinet and the moving elevator car.

As elevators become faster and more intelligent, traditional cables can no longer meet the demands of high-speed data transmission and electromagnetic interference protection.

1.What Is a Elevator Traveling Cable? 

A elevator traveling cable is a specially engineered flexible cable designed for continuous vertical movement inside the hoistway. it integrates multiple functional cores into a single composite structure, enabling simultaneous transmission of:

Electrical power

Control and safety signals

Communication data

Video and monitoring signals

It is engineered for:

High flexibility

Tensile strength

EMI resistance

Long service life.

 For detailed specifications and product configurations, see our elevator traveling cable products.

2. Flat vs. Round Elevator Traveling Cable

When selecting a elevator traveling cable, choosing between a flat traveling cable and a round traveling cable is a key decision. Each type is designed for specific elevator system requirements, including building height, travel distance, and signal complexity.

1. Flat Traveling Cable (Ribbon Structure)

Flat elevator traveling cables use a side-by-side conductor layout.

Key advantages:

Smaller bending radius

Higher flexibility

Lower swing in hoistway

Easier installation in compact shafts

Best for:

Low-rise buildings, residential elevators, short travel systems

For more information about Flat Elevator Traveling Cable, please refer to: 

Flat Elevator Traveling Cable | Complete Guide to Features, Options, and Applications

For deeper technical details and performance comparison, refer to: 

Flat vs Round Elevator Traveling Cable | Key Differences and Selection Guide.

2. Round Traveling Cable (Concentric Structure)

Round elevator traveling cables use layered concentric conductor design.

Key advantages:

High mechanical strength

Large core capacity (up to 120+ cores)

Better long-distance stability

Improved tensile performance

Best for:

High-rise buildings, high-speed elevators, complex control systems

3. Inside the Elevator Traveling Cable

A modern traveling cable for elevator typically includes multiple functional core types:

Power Cores (Energy Transmission)

Cross-section: 1.0–2.5mm²

Purpose: main elevator power supply

Control Cores (Signal Transmission)

Cross-section: 0.5–0.75mm²

Purpose: elevator control and safety signals

Coaxial Cores (CCTV Systems)

Impedance: 75Ω

Purpose: video surveillance transmission

Shielded Twisted Pairs (EMI Protection)

Structure: foil or braided shielding

Purpose: stable communication signals

Optical Fiber (Smart Elevator Systems)

Purpose: IoT monitoring, high-speed data transmission, remote diagnostics 

4. Shielding & Steel Core Design

The performance of a elevator traveling cable depends heavily on two structural decisions: 

1. Shielding Type (EMI Protection System)

Functions:
Shielding eliminates electromagnetic interference generated by VFD drives, ensuring stable video, audio, and data transmission.

2. Steel Core Reinforcement

· No steel core → low-rise, short travel systems

· Galvanized steel wire core → high-rise & high-tension applications

Functions:

Steel core supports vertical tensile load, ensuring suspension safety and long service life. 

3. Selection Rule

· Travel height > 35m OR speed > 1.6m/s → steel core required 

· CCTV / intercom / IoT system → shielding required 

Why Shielding Is Important

In modern elevators, variable frequency drives (VFDs) generate strong electromagnetic interference. Without proper shielding in the elevator traveling cable, issues such as video noise, signal distortion, and data loss may occur.

Why Reserve Spare Cores

It is recommended to reserve 2–4 spare cores in the elevator traveling cable to support future system upgrades, reducing the need for cable replacement and lowering long-term maintenance costs. 

5. Elevator Traveling Cable Selection Guide

To correctly select a elevator traveling cable, engineers evaluate:

· Building height (low-rise / mid-rise / high-rise)

· Elevator speed (standard / high-speed)

· Signal complexity (basic control vs smart IoT systems)

· EMI environment (VFD interference level)

6. Why Work with Professional Elevator Traveling Cable Suppliers

Choosing experienced elevator traveling cable suppliers ensures:

· Correct engineering-grade cable selection

· Compliance with elevator safety standards (EN / IEC / GB)

· Customized conductor configuration

· Long-term mechanical and electrical reliability

· Reduced maintenance and lifecycle cost

7. Conclusion

A elevator traveling cable is not just an accessory—it is a core safety and communication system in modern elevator engineering.

Proper selection of structure (flat or round), shielding type, and steel core reinforcement ensures:

· Safe suspension performance

· Stable signal transmission

· Reliable long-term operation

Working with qualified elevator traveling cable suppliers is essential for achieving optimal performance in residential, commercial, and high-rise elevator systems.