APPLICATION
RS485 Communication Cables are designed for high-reliability differential serial data transmission, TIA/EIA-485 전기 인터페이스 표준을 완벽하게 준수. 뛰어난 간섭 방지 성능으로 안정적인 장거리 통신을 제공합니다., 그리고 널리 사용됩니다:
- 산업 자동화 제어 시스템 (PLC, DCS, SCADA 시스템 네트워킹)
- 빌딩 자동화 & 지능형 빌딩 제어 (BMS, 접근 제어, 화재 경보 시스템)
- Smart grid & power distribution automation equipment communication
- Security & video surveillance system data transmission
- Traffic signal & intelligent transportation system (ITS) networking
- Renewable energy projects (태양의, wind farm) field device communication
- Petrochemical, metallurgy & mining field instrument and sensor data transmission
These cables can be installed in cable trays, buried in conduits, laid indoors/outdoors, or deployed in harsh industrial environments, with excellent resistance to electromagnetic interference, mechanical stress and environmental corrosion.
CONSTRUCTION
- 지휘자: Annealed Bare Copper / Tinned Copper, 수업 1 (solid) / 수업 5 (stranded) conductor, common sizes AWG24/22/20 (0.2mm²~0.5mm²)
- 격리: High-performance Cross-linked Polyethylene (XLPE) / Polyethylene (체육) / PVC insulation, ensuring stable dielectric properties and standard 120Ω characteristic impedance
- Twisted Pair: Core wires twisted in pairs with precise lay length, to reduce crosstalk and ensure differential signal transmission stability
- Drain Wire: Tinned copper drain wire for continuous and reliable grounding (for shielded structures)
- Inner Shielding: Aluminum Foil Shielding (100% coverage) for all-round anti-electromagnetic interference protection
- Total Shielding: Tinned Copper Braided Shielding (coverage ≥85%), for enhanced EMI/RFI resistance in harsh industrial environments
- Inner Lining: Extruded polymer inner lining for core structure reinforcement and protection
- 갑옷 (optional): Steel Tape Armour (STA) / Steel Wire Armour (SWA) for mechanical damage protection, suitable for direct burial and harsh outdoor scenarios
- 외부 칼집: High-quality PVC / LSZH (Low Smoke Zero Halogen) / 체육 / PUR sheath, customizable for different environmental requirements
- 핵심 식별: Color-coded core pairs for easy on-site installation and maintenance
CHARACTERISTICS
- Characteristic Impedance: 120Ω ±20%, fully matching the electrical requirements of TIA/EIA-485 standard
- 온도 등급:
- Conductor continuous operating: -40℃~90℃ (XLPE insulated type); -20℃~70℃ (PVC insulated type)
- Short-circuit: 160℃ (max 5 seconds for XLPE insulated type)
- Transmission Performance: Supports transmission rate up to 10Mbps (12m short distance) / 100kbps (1200m long distance), with low attenuation and low signal reflection
- Anti-interference Performance: Shielded structure provides excellent resistance to electromagnetic interference (EMI) 그리고 무선 주파수 간섭 (RFI), ensuring stable data transmission in strong electric interference industrial environments
- Mechanical Strength: Excellent bending and tensile resistance, minimum bending radius ≥10× cable outer diameter (fixed installation); ≥15× cable outer diameter (flexible installation)
- Environmental Resistance: Customizable sheath provides resistance to oil, corrosion, UV, abrasion and weathering, adapting to harsh industrial, outdoor and underground scenarios
- Flexibility: Available in solid conductor (for fixed wiring) and stranded flexible conductor (for mobile and drag chain applications)
STANDARDS
- TIA/EIA-485: Electrical characteristics of balanced digital multipoint systems
- IEC 61158: Industrial communication networks – Fieldbus specifications
- IEC 60228: Conductors of insulated cables
- IEC 60332: Tests on electric and optical fibre cables under fire conditions
- GB/T 9330: Plastic insulated control cables (Chinese national standard)
- UL 2464: Multi-conductor flexible cables with or without shielding (North American market)
- ISO/IEC 11801: Information technology – Generic cabling for customer premises
- IEC 60079: Explosive atmospheres standards (for intrinsic safety type cables)
THHN/THWN-2 차폐 케이블
THHN/THWN-2 cables are use in Class 1, 분할 2 석유와 같은 위험한 장소, 가스 및 석유화학 산업.