Mining Fiber Optic Cable MGXTS
MGXTSV flame-retardant communications cable is designed for underground coal mines and mining environments, carrying voice, images, data and environmental-monitoring signals. Flame retardancy, moisture resistance, lateral-pressure resistance and protection against rodent bites are supported by national mining-product safety-mark certification for coal-mine safety compliance. II. Structure and materials. Fibers are housed in high-modulus plastic loose tubes filled with water-blocking gel. Central phosphated or polyethylene-coated steel wire improves tensile strength; parallel side wires or double-sided plastic-coated steel tape (PSP) increase lateral-pressure resistance. A double flame-retardant jacket uses an inner steel/polyethylene bonded sheath and an outer blue flame-retardant PVC sheath, passing bundled-cable flame tests. Water-blocking compound, steel armor and an aluminum moisture barrier provide longitudinal waterproofing.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Loose Tube Outer Diameter [Core count : 1F/2F/4F/6F/8F/12F; ±0.1] | 2.2±0.1 mm |
| Loose Tube Material [Core count : 1F/2F/4F/6F/8F/12F] | PBT |
| Water-Blocking Material [Core count : 1F/2F/4F/6F/8F/12F] | Fiber filling compound + cable filling compound |
| Steel-Wire Armored [Core count : 1F/2F/4F/6F/8F/12F] | Phosphated Steel Wire 0.5mm*16 |
| Inner Protective Armoring Method [Core count : 1F/2F/4F/6F/8F/12F] | Corrugated steel tape |
| Outer Sheath Material [Core count : 1F/2F/4F/6F/8F/12F] | PVC |
| Outer Sheath Wall Thickness [Core count : 1F/2F/4F/6F/8F/12F] | Average ：1.8 |
| Optical cable outer diameter [Core count : 1F/2F/4F/6F/8F/12F; ±0.2] | 8.0±0.2 mm |
| Optical cable net weight [Core count : 1F] | 97 kg/km |
| Optical cable net weight [Core count : 2F] | 97 kg/km |
| Optical cable net weight [Core count : 4F] | 97 kg/km |
| Optical cable net weight [Core count : 6F] | 97 kg/km |
| Optical cable net weight [Core count : 8F] | 98 kg/km |
| Optical cable net weight [Core count : 12F] | 98 kg/km |
| Fiber type | G.652D Single-mode Optical fiber |
| Mode field Diameter @1310nm [G.652D Single-mode Optical fiber ; @1310nm; ±0.4μm] | 9.2±0.4μm |
| Cladding diameter [G.652D Single-mode Optical fiber ; ±1.0μm] | 125.0±1.0μm |
| Mode Field Concentricity Error [G.652D Single-mode Optical fiber] | ≤0.5μm |
| Cladding Noncircularity [G.652D Single-mode Optical fiber] | ≤0.8% |
| Cutoff Wavelength λcc [G.652D single-mode fiber; tested over 20m cable +2m fiber] | λcc (tested on 20m optical cable +2m optical fiber) ≤1260 nm |
| Attenuation Coefficient [G.652D Single-mode Optical fiber ; 1310nm] | ≤0.36 dB/km |
| Attenuation Coefficient [G.652D Single-mode Optical fiber ; 1550nm] | ≤0.22 dB/km |
| Dispersion Coefficient [G.652D Single-mode Optical fiber ; 1270-1360nm] | 1270-1360nm≤5.3ps/nm.km |
| Dispersion Coefficient [G.652D Single-mode Optical fiber ; 1550nm] | 1550nm≤18ps/nm.km |
| Zero-Dispersion Wavelength [G.652D Single-mode Optical fiber] | 1300nm-1324nm |
| Zero-Dispersion Slope [G.652D Single-mode Optical fiber] | ≤0.09ps/nm².km |
| Polarization Mode Dispersion Coefficient PMD_Q [G.652D Single-mode Optical fiber] | PMD_Q≤0.2ps/km^(1/2) |
| Coating Outer diameter [G.652D Single-mode Optical fiber ; ±10μm] | 245±10μm |
| Proof-Test Tension [G.652D Single-mode Optical fiber] | 100kpsi（0.7Gpa） |
| Tensile Loading IEC 60794-1-E1 [Long-Term: 600N Short-Term: 1500N Cable Length: at least 50 m; Fiber at 1550ｎｍ] | Fiber attenuation change at 1550ｎｍ is ≤0.1dB; all fibers and components in the optical cable shall remain intact |
| Crushing IEC 60794-1-E3 [Long-Term: 300 N/10cm Short-Term: 1000 N/10cm Loading Time: 1 minute; Fiber at 1550ｎｍ] | Fiber attenuation change at 1550ｎｍ is ≤0.1dB; all fibers and components in the optical cable shall remain intact |
| Shock IEC 60794-1-E4 [Impact height: １ｍ; impact weight: 450ｇ; at least 5 impact points; at least 3 impacts per point; fiber at 1550ｎｍ] | Fiber attenuation change at 1550ｎｍ is ≤0.1dB; all fibers and components in the optical cable shall remain intact |
| Repeated Bending IEC 60794-1-E6 [Mandrel diameter: 20 times cable diameter; weight: 15kg; 30 bends at 1 bend per 2 seconds; fiber at 1550ｎｍ] | Fiber attenuation change at 1550ｎｍ is ≤0.1dB; all fibers and components in the optical cable shall remain intact |
| Torsion IEC 60794-1-E7 [Twisting length: 1ｍ; weight: 15kg; twist angle: ±180 degrees; at least 10 twists; fiber at 1550ｎｍ] | Fiber attenuation change at 1550ｎｍ is ≤0.1dB; all fibers and components in the optical cable shall remain intact |
| Water seepage IEC 60794-1-F5B [Water Column Height: 1ｍ Sample Length: 3ｍ Holding Time: 24 hours] | No water leaks from the fiber optic cable |
| Temperature Cycling IEC 60794-1-F1 [Temperature steps: ＋20℃, －40℃, ＋70℃, ＋20℃; dwell 24 hours per step; 2 cycles; fiber at 1550ｎｍ] | Fiber attenuation change at 1550ｎｍ is ≤0.1dB; all fibers and components in the optical cable shall remain intact |
| Drip Performance IEC 60794-1-E14 [Sample Length: 30cm Temperature Range: 70℃±2℃ Holding Time: 24 hours] | No dripping of filling compound |
| Jacket Integrity [Inline test DC 9t kV, where t is sheath thickness in mm.] | No sheath breakdown |
| Fiber Optic Cable Bend Radius [Static Bending] | At least 10 times the cable outer diameter |
| Fiber Optic Cable Bend Radius [Dynamic Bending] | At least 20 times the cable outer diameter |
| Single-mode Optical fiber - Attenuation | 1310nm Wavelength Attenuation ≤0.36dB/km，1550nm Wavelength ≤0.22dB/km（G.652D Standard ）711。 |
| Multimode Optical fiber - Attenuation | 850nm Wavelength Attenuation ≤3.0dB/km（62.5/125µm），1300nm Wavelength ≤0.7dB/km711。 |
| Tensile force | Long-Term Allowable 600N, Short-Term 1500N47 |
| Crushing force | Long-term 300N/100mm， Short-term 1000N/100mm711。 |
| Bend Radius | Static: 10 times the cable diameter; dynamic: 20 times |
| Temperature Range | -40℃ to +70℃, suitable for extreme underground environments |
| Waterproof Rating | Longitudinal water blocking complies with MT/T386-2011 |
Applications
Key Features
Datasheet
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