1. Overview

LGH Cables refer to a category of cable assemblies designed with low-halogen, high-flexibility, and high-durability materials. These cables are engineered to meet stringent safety, environmental, and performance standards in modern electronic and electrical systems. Their importance lies in their ability to ensure reliable signal transmission, power delivery, and resistance to harsh environments, making them critical in industries such as industrial automation, medical devices, and telecommunications.

2. Main Types and Functional Classification

Type	Functional Characteristics	Application Examples
Power LGH Cables	High current capacity, flame-retardant insulation, and low smoke emission	Industrial machinery, data center servers
Signal LGH Cables	Shielded design for EMI/RFI protection, low signal loss	Medical imaging equipment, communication systems
Hybrid LGH Cables	Integrated power and signal transmission, compact structure	Robotics, automated guided vehicles (AGVs)
High-Temperature LGH Cables	Thermally stable materials (up to 150 C), chemical resistance	Aerospace systems, automotive engines

3. Structure and Composition

A typical LGH cable assembly consists of:

• Conductor: Annealed copper or tinned copper for high conductivity
• Insulation: Cross-linked polyethylene (XLPE) or ethylene propylene rubber (EPR)
• Shielding: Braided copper or aluminum foil for EMI protection
• Jacket: Low-smoke zero-halogen (LSZH) thermoplastic for fire safety
• Connectors: IP-rated plugs/sockets (e.g., M12, USB Type-C)

4. Key Technical Specifications

Parameter	Description	Importance
Conductor Size (AWG)	18 AWG to 4 AWG	Determines current-carrying capacity
Operating Voltage	300V to 1000V	Defines electrical safety margins
Temperature Range	-40 C to +105 C	Ensures functionality in extreme environments
Bend Radius	10 cable diameter	Impacts installation flexibility and longevity
Shielding Effectiveness	80 dB at 100 MHz	Minimizes signal interference

5. Application Fields

LGH cables are widely used in:

• Industrial Automation: PLC systems, CNC machines
• Medical Equipment: MRI scanners, patient monitors
• Telecommunications: 5G base stations, fiber-optic networks
• Transportation: Rail signaling, EV charging stations

6. Leading Manufacturers and Representative Products

Manufacturer	Product Series	Key Features
TE Connectivity	LGH-200 Series	UL-certified, 1200V rating, halogen-free jacket
Amphenol	FlexGuard LGH	Flexible PVC-free design, 20,000+ bend cycle lifespan
Molex	SL Series Hybrid Cables	Integrated power/signal lines, RoHS compliant

7. Selection Recommendations

When selecting LGH cables, consider:

1. Environmental Conditions: Temperature, exposure to chemicals, UV, or abrasion
2. Electrical Requirements: Voltage, current, and signal integrity needs
3. Mechanical Stress: Flexing, bending, or torsion during operation
4. Regulatory Compliance: Certifications (CE, UL, REACH)
5. Cost Efficiency: Balance between durability and budget constraints

Example: For robotic arms in automotive factories, choose shielded hybrid LGH cables with a 15 AWG conductor and IP67-rated connectors.

8. Industry Trends

Future development trends include:

• Increased adoption of halogen-free materials to meet stricter environmental regulations
• Miniaturization for use in portable and wearable devices
• Integration of smart sensors for real-time condition monitoring
• Higher data transmission rates (e.g., 40 Gbps for industrial Ethernet)
• Growing demand for customized cables in renewable energy systems