Technical Analysis of Mining-Use Flame Retardant Communication Optical Cable MGTSV-48B1
I. Structure and Characteristics
Fiber Optic Configuration: 48-core single-mode fiber (G.652.D standard), utilizing a loose-tube stranded structure, with water-resistant grease in the loose tubes to ensure full-section water-blocking performance.
Enhanced Design: Phosphate reinforced steel core (diameter ≥1.2mm), short-term tensile strength ≥1500N, dynamic bending radius ≥20 times the outer diameter.
Protective Coating:


Inner sleeve: Steel-polyethylene bonded layer.


Outer sheath: Blue flame-retardant PVC (Oxygen Index ≥28), meets the mining standard MT/T 386-2011.


Section II: Key Performance Parameters


Flame Retardancy: Self-extinguishing time for bundle combustion ≤ 30 seconds, halogen-free with low smoke (light transmittance ≥ 60%).


Environmental Adaptability: Operating temperature -40℃ to +70℃, side pressure resistance ≥3000N/100mm, anti-rat bite design.


Transmission Performance: Supports 10Gbps high-speed transmission with an expected lifespan of ≥30 years.


Section 3: Application Scenarios
Coal Mine Communication: underground voice, video, and automation control system signal transmission.
Tunnels and Shafts: Suitable for high mechanical stress environments, supporting overhead/piping installation.
IV. Manufacturers and Certifications
Major Manufacturers: Tianjin Cable Works Branch (Tianlian brand) offers MA Coal Safety certification.
Reference Price: (Bulk Purchase Price)
V. Technical Advantages
Safety Protection: Double protection with armor layer and flame-retardant sheath, meets coal mine explosion-proof requirements.
Construction Convenience: Full-spectrum labeling of fiber core lines for quick deployment underground.