Flame Retardant Tight Buffered Distribution Fiber Optic cables

MTA-B-C-D-H

Flame Retardant Optic Fiber Cables

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Note: Asterisk * denotes superseded standard.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