Technical Characteristics
| Model | Nominal Outer Diameter | Nominal Weight | Cable Breaking Load
(CBL) | Nominal Transient Tensile Strength
(NTTS) | Nominal Operating Tensile Strength
(NOTS) | Nominal Permanent Tensile Strength
(NPTS) | Minimum Bending Radius without Tension | Impact | Crush | Conductor Resistance at 4˚C | Insulation Resistance |
| mm | kg/m | KN | KN | KN | KN | m | J | KN/100mm | Ω/km | 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 |
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.
Optical properties
| 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 |
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
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 |
|
| water penetration, and resistance to hydrostatic pressure | Reference: GB/T 3048 |
Applications
Marine communications
Underwater communications
Maximum relay transmission distance: 16000KM
Support 400G × 64 wave × 16 fiber pair
