Rock Armor (RA) kedalaman hingga 600 meter
Spesifikasi Teknis
GENERAL

The offered cable for undersea application down to 600m ocean depth for burial or surface laid

REFERENCE STANDARDS

The offered fiber optic cable complies to the ITU-T G.976, G.978, ITU-T G.652.D, ITU-T G.654.B, ITU-T G.654.C, IEC 60794, TIA/ EIA standards.

CONTRACTION
CABLE STRUCTURE
Fiber Identification

– Each fiber is coloured with durable bright transparent colour

– Every twelve coloured fibers is bundled with coloured polyester yarn or ink-jet dotted to distinguish with other twelve fibers

Fully waterblocked cable

– All wires interstices are filled with bitumen

Stainless Steel Loose Tube

– Stainless steel central loose tube with thixotropic gel filling as fiber protection

High Density Polyethylene (HDPE)

– Black UV resistant High Density Polyethylene (HDPE) as inner protection

Galvanized Steel Wire Armour

– Provides mechanical protection, the cable can withstand higher stress

– Galvanized steel wire armoured 12 x Ø1.7 mm for inner armouring over the stainless steel central loose tube

– Galvanized steel wire armoured 15 x Ø4.0 mm and 21 x Ø4.0 mm for outer armouring layers

– Other armour size and quantity are available upon on request

High Density Polyethylene (HDPE)

– Black UV resistant High Density Polyethylene (HDPE) as outer protection

PP Yarn Protection

– Polypropylene (PP) yarns in yellow and black colours as sacrificial protection over the wire armouring.

PARAMETERS
FIBER PARAMETERS OF SINGLE MODE OPTICAL FIBER :
Reference Standard ITU-T G.652.D ITU-T G.654.B ITU-T G.654.C

Type

Single Mode

Cut-Off Shifted Single Mode

Cut-Off Shifted Single Mode

Wavelength (nm)

1310 / 1550

1550

1550

Attenuation on Finished Cables (dB/km)

0.35 / 0.20

0.180

0.180

Typical Attenuation (dB/km)

0.35 / 0.19

0.175

0.175

Mode Field Diameter (µm)

9.2 ± 0.4 at 1310 nm

11.4 – 12.4 at 1550 nm

9.4 – 10.4 at 1550 nm

CABLE PARAMETERS :
ITEM SPECIFICATION

Fiber Quantity

24

Cable Dimension

Cable Diameter (Nominal)

37.5 mm

Cable Weight in the Air (Nominal)

4235 kg/km

Cable Weight in the seawater (Nominal)

3365 kg/km

Specific Gravity

Specific gravity in the air

3.84 g/cm3

Specific gravity in the sea water

3.05 g/cm3

Other Fiber Type and Fiber Quantity are available upon request.

MECHANICAL CHARACTERISTICS :
ITEM SPECIFICATION

Cable Breaking Load (CBL)

350 kN (minimum)

Nominal Transient Tensile Strength (NTTS)

240 kN

Nominal Operation Tensile Strength (NOTS)

170 kN

Nominal Permanent Tensile Strength (NPTS)

140 kN

Minimum Bending Radius with load (MBR)

1500 mm

Minimum Bending Radius without load

1000 mm

Operating temperature

-10ËšC up to +50ËšC

Storage temperature

-30ËšC up to +70ËšC

Water depth application

600 m (maximum)

Hydro dynamic constant

1.2 m/s

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