Applications :

These steel armoured optical fibre cables are flame retardant, low smoke, halogen free and fire resistant, used

for communication and emergency systems that need to be operational during fire.

Standards :

IEC 60794

IEC 60811-2-1

IIEC 60331-25

IEC 60332-3-24

IEC 60332-3-22

IEC 60754-1,2

IEC 61034-1,2

NEK 606:2016

Construction :

Fibre Element : Loose tube core design with fire barrier.

Central Strength Element : Steel wire or fibre reinforced plastic (FRP).

Water Blocking Element: Jelly filled tube with water blocking swellable tape and water blocking yarn.

Overall Fire Barrier

Bedding: Halogen free and flame retardant thermoplastic compound.

Armour: Galvanized steel wire braid.

Outer Sheath: Halogen free and flame retardant, UV-stabilized, thermoplastic compound, SHF1.

Electrical Characteristics :

• Fibre Type		9/125	50/125	50/125	62.5/125
  ITU-T type		G652.D	G651	G651	-
  IEC11801 Classification		OS1 & OS2	OM2	OM3	OM1
  Core Diameter	μm	8.7±0.4	50±3.0	50±3.0	62.5±3.0
  Cladding Diameter	μm	125 ±1.0	125 ±2.0	125 ±2.0	125 ±2.0
  Coating Diameter	μm	245 ±10	245 ±10	245 ±10	245 ±10
  Maximum Attenuation
  @850 nm	dB/km	-	3.0	3.0	3.5
  @1300 nm	dB/km	-	1.5	1.0	1.5
  @1310 nm	dB/km	0.36	-	-	-
  @1550 nm	dB/km	0.22	-	-	-
  Minimum Bandwidth(OFL*)
  @850 nm	MHz.km	-	500	1500	200
  @1300 nm	MHz.km	-	500	500	600
  Maximum Chromatic Dispersion
  1285-1330 nm	ps/nm⋅km	2.8	-	-	-
  1550 nm	ps/nm⋅km	18	-	-	-
  Zero Dis ersion Wavelen th	nm	1300~1324	-	-	-

Mechanical and Thermal Properties :

Bending Radius : 20×OD (during installation); 10×OD (fixed installed).

Temperature Range : -40℃ ~ +70℃.

Dimensions and Weight :

No. of Fibres	Construction No. of tubes×No. of fibres in each tube	Number of Fillers	Nominal Loose Tube Diameter mm	Nominal Overall Diameter mm	Nominal Weight kg/km
2	1×2	5	2.2	13.9	244
4	1×4	5	2.2	13.9	244
6	3×2	3	2.2	13.9	244
8	2×4	4	2.2	13.9	244
10	5×2	1	2.2	13.9	244
12	3×4	3	2.2	13.9	244
16	4×4	2	2.2	13.9	244
20	5×4	1	2.2	13.9	244
24	6×4	0	2.2	13.9	244
32	4×8	2	2.2	13.9	244
40	5×8	1	2.2	13.9	244
48	6×8	0	2.2	13.9	244