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 606:2004

 

Construction :

• Fibre Element : Loose tube core design.
• Central Strength Element : Steel wire or fibre reinforced plastic (FRP).
• Bedding : Halogen free and flame retardant thermoplastic compound.
• Armour : Galvanized steel wire braid.
• Outer Sheath1 : Halogen free and flame retardant, UV-stabilized, thermoplastic compound, SHF1.
• Outer Sheath2 : Mud resistant and halogen-free thermoplastic compound.

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 Dispersion Wavelength	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	15.0	290
4	1×4	5	2.2	15.0	290
6	3×2	3	2.2	15.0	290
8	2×4	4	2.2	15.0	290
10	5×2	1	2.2	15.0	290
12	3×4	3	2.2	15.0	290
16	4×4	2	2.2	15.0	290
20	5×4	1	2.2	15.0	290
24	6×4	0	2.2	15.0	290
32	4×8	2	2.2	15.0	290
40	5×8	1	2.2	15.0	290
48	6×8	0	2.2	15.0	290