The flame-retardant optical cable for mining has a flame-retardant sheath, which can have a full cross-section water blocking structure, ensuring good water blocking and moisture-proof performance. The loose sleeve is filled with special ointment to provide critical protection for the optical fiber. Two parallel round steel wires are resistant to both tension and lateral pressure. The optical cable has a small outer diameter, light weight, and excellent bending performance. The loose sleeve is located at the physical center of the optical cable, making construction operation
convenient. It has low loss, low dispersion, compact structure, and good comprehensive mechanical performance.
Optical Characteristics
G.652 | G.655 | 50/125μm | 62.5/125μm | ||
Attenuation (+20℃) | @850nm | ≤3.0dB/km | ≤3.0dB/km | ||
@1300nm | ≤1.0dB/km | ≤1.0dB/km | |||
@1310nm | ≤0.36dB/km | ≤0.36dB/km | |||
@1550nm | ≤0.22dB/km | ≤0.23dB/km | |||
Bandwidth (Class A) | @850 | ≥500MHZ·km | ≥500MHZ·km | ||
@1300 | ≥1000MHZ·km | ≥600MHZ·km | |||
Numerical Aperture | 0.200±0.015NA | 0.275±0.015NA | |||
Cable Cut-off Wavelength λcc | ≤1260nm | ≤1480nm |