Stock Code: 601869.SH / 06869.HK

Repeatered Submarine Optical Fibre Cable (BYROC-1 DA)

The repeatered submarine optical fibre cable communication system includes one or more repeaters, applicable to long haul, high speed, cross-ocean communication system.
Characteristics
  • Executive standards: GB/T 18480, GJB 4489, IEC 60794, ITU-T G.976
  • Scope of application: laid in oceans and rivers; used for communication and data transmission between continents, between continents and islands, and between islands and islands, featuring large transmission capacity and long continuous length; applicable to long haul, high speed, cross-ocean communication system, with repeaters up to 16 fibre pairs.
  • Temperature range: operating temperature: -10°C to +40°C; handling temperature: -15°C to +45°C; storage temperature: -30°C to +60°C
  • Normal service life: no less than 25 years
  • Maximum laying depth under water: 8,000 m

 

Product Model

Model

Item Service Condition

BYROC-1 DA

Double armoured repeatered optical cable

A cable with double armoured protection. This cable is applicable to laying, burial, recovery and operation, and is suitably protected for specific areas in shallow water.

Note: BY - Company Code; ROC - Repeatered Optical Cable; 1 - Series Number; DA - Double Armoured

 

Product Structure

 

  

 

Main Fibre Types
ITU Code Chinese Code Optical Fibre Name Fibre Characteristics

G.652.D

B1.3

Non-dispersion shifted single-mode optical fibre with extended wavelength

Design and selection according to the specific needs of users

G.654

B1.2

Cut-off shifted single-mode optical fibre

G.655

B4

Non-zero dispersion shifted single-mode optical fibre

 

 

Main Parameters
Model

Nominal Outer Diameter

mm

Nominal Weight

kg/m

Cable Breaking Load

CBL

KN

Nominal Transient Tensile Strength

NTTS

KN

Nominal Operating Tensile Strength

NOTS

KN

Nominal Permanent Tensile Strength

NPTS

KN

Minimum Bending Radius without Tension

m

Impact

J

Crush

KN/100mm

Conductor Resistance at 4˚C

Ω/km

Insulation Resistance

GΩ·km
In the Air In the Sea

BYROC-1DA

38.8

4.13

3.15

570

440

320

210

1

400

50

≤1.5

≥10

Note: 1) The maximum number of fibre cores is 32. Redesign is required in the case of more than 32 cores.

          2) The technical parameters of the customized products are subject to the technical specifications of the customized products.

Main Test Items

Test Item

Test Method

Optical performance

Reference: GB/T 15972

Tensile properties, crush, impact, repeated bending, temperature cycling,

water penetration, and resistance to hydrostatic pressure

Reference: IEC 60794-1, GB/T 7424.2

Conductor resistance, insulation resistance, and withstand voltage

Reference: GB/T 3048

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