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Fire Resistant Optic Fiber Cables
Fire Resistant Tight Buffered Distribution Fiber Optic cables
MTA-B-C-D-H-FR
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 Pefeormance：
| Circuit Integrity | IEC 60331-25; BS 6387 CWZ; DIN VDE 0472-814(FE180); CEI 20-36/2-1; SS229-1; NBN C 30-004 (cat. F3); NF C32-070-2.3(CR1) |
|---|---|
| System circuit integrity | DIN 4102-12, E30 depending on lay system |
| 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Note: Asterisk * denotes superseded standard.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.
Fire Barrier: The tight buffered fibers are wrapped with fire blocking fiber glass yarns.
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
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-FR | 2 | 7,6 | 250 | 76 | 55 |
| MTA-B-4-0-H-FR | 4 | 7,8 | 250 | 78 | 67 |
| MTA-B-6-0-H-FR | 6 | 8,6 | 400 | 86 | 77 |
| MTA-B-8-0-H-FR | 8 | 8,8 | 400 | 88 | 81 |
| MTA-B-12-0-H-FR | 12 | 9,3 | 400 | 93 | 90 |
