Reinforced Core Flame-Retardant Optical Cable Models

Reinforced core flame-retardant optical cables feature non-metallic or armored cores, loose tube or tight-buffered designs, water-blocking, and flame-retardant sheaths for high-performance, safe deployment in harsh environments.

Key Models and Structures

1. GYFTZY Loose Tube Non-Armored Cable

• Core: Non-metallic glass fiber reinforced plastic (FRP) central strength member, providing tensile support and eliminating electromagnetic interference .
• Fiber Protection: 250 µm optical fibers housed in high-modulus loose tubes filled with thixotropic gel for water-blocking and hydrolysis resistance .
• Sheath: Extruded flame-retardant outer jacket for fire safety in urban, tunnel, or high-risk installations .
• Structure: Loose tubes and fillers are spirally stranded around the central core to form a compact, circular cable with enhanced compressive resistance .
• Applications: Backbone/distribution networks, smart city infrastructure, coastal or high-humidity zones, tunnels, and high-EMI areas . 2. GYFTZA53 Armored Cable
• Core: Non-metallic FRP central strength member for structural integrity and EMI immunity .
• Protection Layers: Loose tubes and filler ropes spirally stranded over the FRP core, longitudinally wrapped with aluminum tape, and reinforced with double-sided corrugated steel tape (PSP) armor .
• Sheath: Flame-retardant outer covering ensures safety in high-hazard environments .
• Water Resistance: Thixotropic gel and aluminum tape provide moisture protection .
• Applications: Harsh outdoor environments, industrial sites, subterranean ducts, tunnels, and subways where mechanical stress, fire safety, and moisture resistance are critical . 3. Corning FREEDM® Reduced Outer Diameter Cable
• Core: All-dielectric loose tube design with gel-filled buffer tubes .
• Sheath: Flame-retardant, UV-resistant jacket suitable for indoor/outdoor riser applications .
• Design Features: Reduced diameter for high fiber density in microducts, SZ-stranded loose tube design for fiber isolation, and rodent deterrent fiberglass yarns .
• Applications: Microduct installations, riser-rated indoor/outdoor networks, and environments requiring NEC® compliance (OFNR, FT4), . 4. Corning FREEDM® One Tight-Buffered Cable
• Core: Tight-buffered 900 µm fibers, color-coded for easy identification .
• Sheath: Flame-retardant, UV-resistant, all-dielectric jacket suitable for aerial and duct applications .
• Features: Small diameter and bend radius for space-constrained installations, water-blocking technology for outside plant applications .
• Applications: LAN, aerial, and duct installations requiring direct termination without fan-out kits .

Common Specifications Across Models

• Flame-Retardant Sheath: Meets fire safety standards for indoor, outdoor, and confined spaces.
• Water-Blocking: Thixotropic gel or water-swellable tape protects fibers from moisture and hydrolysis.
• Mechanical Strength: Central FRP or armored cores provide tensile support and compressive resistance.
• Temperature Tolerance: Designed for extreme environmental conditions, including high humidity, coastal, and underground installations.
• EMI Immunity: Non-metallic cores prevent electromagnetic interference, ideal for sensitive areas. These reinforced core flame-retardant optical cables are engineered for high reliability, safety, and long-term performance in diverse deployment scenarios, from urban backbone networks to industrial and subterranean applications.