UL 2731 Flame Retardant LSZH Power Cable | 600V Telecom Equipment | Indoor/Outdoor

Low Voltage Power Cables10
Description

UL 2731 Flame Retardant LSZH Power Cable | 600V Telecom Equipment | Indoor/Outdoor UL 2731 Flame Retardant LSZH Power Cable | 600V Telecom Equipment | Indoor/Outdoor

UL2731 Listed LSZH Power Cable for Telecom Central Offices (Indoor/Outdoor)

Product Overview

This UL2731 listed cable provides critical power distribution for telecommunications central offices and similar infrastructure. Engineered for maximum safety, it delivers Flame Retardant (FR), Low Smoke, Zero Halogen (LSZH) performance to minimize fire risks and toxic emissions. Available in indoor (grey sheath) and outdoor (black UV-stabilized sheath) configurations, it ensures reliable power transmission in diverse environments.

Key Features & Benefits

  • Safety Compliance: Meets stringent FR/LSZH requirements (IEC 60754, IEC 61034)

  • Dual Environment Use: Grey sheath (indoor), Black UV-resistant sheath (outdoor)

  • Robust Shielding: AL/PET foil + tinned CCA wire braid for EMI protection

  • High-Temperature Rating: 90°C continuous operation (dry)

  • UL Certified: Listed per UL 2731 (File E471801)

Cable Structure

  1. Conductor: Tinned copper, Class 5 per IEC 60228

  2. Insulation: FR-LSZH polyolefin

  3. Shield: Dual-layer - AL/PET foil + braided tinned CCA wires (SZ-stranding)

  4. Sheath:

    • Indoor: Grey FR-LSZH polyolefin (no "/0" in code)

    • Outdoor: Black UV-stabilized FR-LSZH polyolefin (with "/0" in code)

Material Properties

  • Halogen-Free: <0.5% halogen content (IEC 60754-1)

  • Low Smoke: <80% light transmittance (IEC 61034-2)

  • Flame Retardant: Passes UL VW-1 vertical flame test

  • UV Resistance: 1000+ hours weatherometer testing (outdoor version)

Application Scenarios

  • Indoor: Central office power feeds, DC power distribution, server racks

  • Outdoor: Building-to-building links, rooftop equipment, exposed conduits

  • Critical Systems: Battery backup circuits, 5G infrastructure, edge data centers

Technical Specifications

Parameter Specification Standard
Voltage Rating 600V AC/DC UL 2731
Temperature -40°C to +90°C (dry)
Conductor Tinned copper, Class 5 IEC 60228
Shield Coverage ≥85% (braid) + 100% (foil) UL 2731
Flame Test VW-1 UL 1581
Smoke Density ≤150 Ds (4m test) IEC 61034-2

Engineering Selection Guidance

  1. Indoor Installations: Select grey sheath cables (no "/0" suffix)

  2. Outdoor/Exposed Runs: Choose black UV-stabilized sheath (with "/0" suffix)

  3. EMI-Sensitive Areas: Verify braid coverage ≥85% for critical zones

  4. Compliance Validation: Confirm UL file E471801 for central office projects