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Customized Products
Fire Resistant Central Loose Tube Fiber Optic Cables
Application:
These cables are characterized by light weight and small diameter, suitable for both aerial and duct installation.
They are mainly installed inside buildings, tunnels,subways or closed areas in general, specially designed to
guarantee the signal transmission even in case of fire. The cable can also be used for direct burial for armoured
version.
Standards:
Basic design to Telcordia GR-20 / RUS 7 CFR 1755.900 (REA PE-90) / ICEA S 87-640
FIRE PERFORMANCE
Circuit Integrity |
IEC 60331-25 |
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* |
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 |
Oxygen Index |
Min. 35% |
Temperature Index |
Min. 280°C |
Note: Asterisk * denotes superseded standard.
Cable Construction:
Fibers: Single mode fibers, with loose tube technology.
Structure: Central loose tube cable contains one tube with 12 core single mode fibers, which are filled with
water blocking gel.
Fire barrier: The jelly filled tube is wrapped with a fire barrier mica glass tapes.
Water blocking: The jelly filled tube is waterblocked by using swellable tape and thread.
Reinforcement: Fiber glass is wound around the tube to provide physical protection and tensile strength, with
added fire protection.
Armouring(optional): Corrugated steel tape armour is applied over cable core.
The 0.15mm thick steel tape is coated with a copolymer and applied with an overlap.
Outer Sheath: Thermoplastic LSZH compound type LTS3 as per BS 7655-6.1
Fiber Colour Code:
Fiber colour code |
1 |
Red |
7 |
Brown |
|
2 |
Green |
8 |
Violet |
|
3 |
Blue |
9 |
Turquoise |
|
4 |
Yellow |
10 |
Black |
|
5 |
White |
11 |
Orange |
|
6 |
Grey |
12 |
Pink |
Construction:
Corrugated Steel Tape Armour
Construction Parameters:
Fiber Count |
Nominal Overall Diameter |
Approx. Weight |
Tension load |
Crush |
No. |
mm |
kg/km |
N |
N/100mm |
12 |
10.5 |
116 |
500 |
1000 |
Physical And Thermal Properties:
Temperature range during operation: -30°C - +70°C
Temperature range during storage: -50°C - +70°C
Minimum bending radius: 20 x Overall Diameter
Mechanical Properties:
Repeated Impact: |
2.0 N.m (J) |
Twist (Torsion): |
180×10 times, 125×OD |
Cyclic Flexing: |
25 cycles for armoured cables; |
Crush Resistance: |
263N/cm (150lb/in) |
Fiber Compliance:
Temperature Cycling |
IEC60794-1-2-F2 |
Tensile Strength |
IEC60794-1-2-E1A |
Crush |
IEC60794-1-2-E3 |
Impact |
IEC60794-1-2-E4 |
Repeated Bending |
IEC60794-1-2-E6 |
Torsion |
IEC60794-1-2-E7 |
Kink |
IEC60794-1-2-E10 |
Cable Bend |
IEC60794-1-2-E11 |
Cool Bend |
IEC60794-1-2-E11 |