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Flame Retardant Fiber Optic Cables
Flame Retardant Tight Buffered Distribution Fiber Optic cables
MTA-B-C-D-H
Application ：
This cables are used for interconnection of distribution boxes and end devices, where continued functionality is required during a fire situation. The cables are very suitable for various indoor and outdoor applications, including routing between buildings within ducts and inside building up to riser shafts.
Standards：
Basic design to Telcordia GR409-CORE / TIA/EIA 568B.3 / ICEA-S-83-596
Fire Performance：
| Flame Retardance (Single Vertical Wire Test) | EN 60332-1-2; IEC 60332-1-2; BS EN 60332-1-2; VDE 0482-332-1 ; NBN C 30-004 (cat. F1); NF C32-070-2.1(C2); CEI 20-35/1-2; EN 50265-2- 1*; DIN VDE 0482-265-2-1* |
|---|---|
| Reduced Fire Propagation (Vertically-mounted bundled wires & cable test) | EN 60332-3-24 (cat. C); IEC 60332-3-24; BS EN 60332-3-24; VDE 0482-332-3; NBN C 30- 004 (cat. F2); NF C32-070-2.2(C1); CEI 20-22/3-4; EN 50266-2-4*; DIN VDE 0482-266-2- 4 |
| Halogen Free | IEC 60754-1; EN 50267-2-1; DIN VDE 0482-267-2-1; CEI 20-37/2-1 ; BS 6425-1* |
| No Corrosive Gas Emission | IEC 60754-2; EN 50267-2-2; DIN VDE 0482-267-2-2; CEI 20-37/2-2 ; BS 6425-2* |
| minimum Smoke Emission | IEC 61034-1&2; EN 61034 -1&2; DIN VDE 0482-1034-1&2; CEI 20-37/3-1&2; EN 50268- 1&2*; BS 7622-1&2* |
| No Toxic gases | NES 02-713; NF C 20-454 |
Note: Asterisk * denotes superseded standard.
Cable Construction ：
Optical fibers: Singlemode and multimode tight fibers, with tight buffer coating.
Reinforcement: Either aramid yarn or fiber glass is wound around the tube to provide physical protection and tensile strength, with added fire protection.
Inner Sheath(optional): Thermoplastic LSZH compound type LTS3 as per BS 7655-6.1
Ripcord(optional): An optional ripcord can be located under the outer sheath to facilitate jacket removal.
Armouring(optional):
STA: Corrugated steel tape armour
SWB: Steel wire braid
Outer Sheath: Thermoplastic LSZH compound type LTS3 as per BS 7655-6.1 (Thermosetting LSZH compound type SW2-SW4 as per BS 7655-2.6 can be offered.)
Physical And Thermal Properties：
Temperature range during operation (fixed state): -20°C - +60°C
Temperature range during installation (mobile state): 0°C - +50°C
Minimum bending radius: 10 times the outer diameter for unarmoured cables 20 times the outer diameter for
armoured cables
Electrical Properties：
| AWG | 14 | |
|---|---|---|
| Nominal Conductor Diameter | mm | 1.6 |
| Impedance | Ω | 75+/-5 |
| Nominal Attenuation@100mHz | dB/100m | 4.5 |
| Nominal Attenuation@270mHz | dB/100m | 7.6 |
| Nominal Attenuation@540mHz | dB/100m | 10.8 |
| Nominal Attenuation@750mHz | dB/100m | 12.8 |
| Nominal Attenuation@1000mHz | dB/100m | 14.8 |
| Capacitance | pF/m | 53.5 |
| Velocity of Propagation | % | 83 |
| Conductor DCR | Ω/km | 8.5 |
| Shield DCR | Ω/km | 12.1 |
| Inductance | μH/m | 0.32 |
| Time Delay | ns/m | 4 |
Construction Parameters：
| Cable Code | N° of Fibers |
Nominal Overall Diameter |
max. Tensile Strength |
minimum Bending Radius |
Approx. Weight |
|---|---|---|---|---|---|
| mm | N | mm | kg/km | ||
| mTA-B-2-0-H | 2 | 7,6 | 250 | 76 | 55 |
| mTA-B-4-0-H | 4 | 7,8 | 250 | 78 | 67 |
| mTA-B-6-0-H | 6 | 8,6 | 400 | 86 | 77 |
| mTA-B-8-0-H | 8 | 8,8 | 400 | 88 | 81 |
| mTA-B-12-0-H | 12 | 9,3 | 400 | 93 | 90 |