SUBMARINE FIBER OPTIC CABLE SERVICES

Engineering, logistics and marine execution for critical subsea networks

Submarine fiber optic cable work requires precise cable handling, vessel coordination, controlled tension, marine positioning, protection of the cable system and disciplined testing. WEB combines field experience with project and logistics management to support installation, repair, burial and maintenance activities.

END-TO-END SUPPORT

Submarine cable service framework

The company profile confirms WEB experience in submarine fiber optic cable installation, repair, maintenance and cable depot managed services. The detailed framework below expands those services into a complete project lifecycle that can be adapted to the contractual scope, cable system, vessel and marine conditions.

PROJECT LIFECYCLE

Project lifecycle

Feasibility & Project Planning

Define route objectives, landing points, cable type, installation strategy, vessel requirements, schedule, risk register and interface matrix.

Route Engineering & Survey Interface

Integrate marine survey data, bathymetry, seabed conditions, hazards, crossings and burial assessment into the installation and protection plan.

Permits & Stakeholder Coordination

Coordinate project documentation, marine access, local stakeholders, landing activities and regulatory interfaces required for execution.

Cable Logistics & Depot Management

Receive, inspect, store and control cable, repeaters, branching units, joints and accessories; maintain traceability and prepare load-out sequences.

Mobilization & Cable Loading

Prepare vessel, loading spread, cable highway, cable engines, instrumentation, jointing area and deck arrangement; load cable to the planned sequence.

Marine Installation & Burial

Execute shore-end and main-lay activities with controlled pay-out, tension monitoring, navigation and appropriate burial or protection method.

Testing & Commissioning

Perform optical and electrical checks as applicable, verify cable integrity, document route position and close out installation records.

Maintenance & Repair

Respond to cable faults with fault localization, mobilization, recovery, jointing, re-lay, protection, post-repair testing and final documentation.

MARINE INSTALLATION

Installation activities in detail

Actual configuration is project- and vessel-dependent. Typical work packages may include:

Shore-end installation

Beach or landing-point preparation, shore-end pull, nearshore handling, transition to marine spread and stabilization/protection in shallow water.

Main lay

Controlled cable pay-out from tanks or carousel through cable machinery while maintaining route position, tension limits, minimum bend radius and operational speed.

Simultaneous lay and burial

Cable is laid while a plough or burial tool protects it below the seabed where soil and route conditions allow.

Post-lay burial

ROV trencher or jetting equipment follows the laid cable to achieve target burial depth in selected sections.

Protection and stabilization

Use of articulated pipe, cable protection systems, mattresses, rock placement, cement bags, clamps or other engineered protection where burial is not feasible.

Crossings and special sections

Engineering and controlled installation at pipeline/cable crossings, steep slopes, congested corridors or environmentally sensitive areas.

CABLE REPAIR

Cable repair workflow

Fault localization using network data and optical test information.
Marine mobilization and preparation of repair spread, spare cable and jointing equipment.
Cable location and recovery using appropriate grapnel, ROV or diver-supported methods depending on depth and conditions.
Controlled cut, recovery and onboard handling while protecting cable bend radius and tensile limits.
Jointing/splicing and electrical/optical restoration under controlled conditions.
Re-lay of the repaired section with slack management and route control.
Burial or engineered protection of the repaired segment where required.
Post-repair testing, route verification, as-built documentation and handover.

MARINE SPREAD

Typical project equipment & systems

Equipment is selected according to water depth, cable design, burial target, seabed conditions and vessel configuration. Typical categories include:

Cable tanks, carousel or cable storage system

Linear Cable Engine (LCE) / cable engine and tension monitoring

Cable highway, rollers, overboarding sheave and stern equipment

Jointing/splicing, OTDR and optical test equipment

DGPS and marine positioning; USBL where subsea tracking is required

Plough, jet sled or ROV trencher for burial and post-lay intervention

Grapnels, cutting/recovery tools and cable handling gear for repair

ROV, cameras or diver support for inspection and protection work

CABLE SYSTEM

Cable types and system components

Submarine systems may use lightweight (LW), lightweight protected, single-armored (SA) or double-armored (DA) cable depending on depth, seabed exposure and external-aggression risk. System components can also include repeaters, branching units, beach joints, universal joints and shore-end protection.

DEPOT & LOGISTICS

Cable depot managed services

Depot management is a critical part of maintenance readiness. WEB supports cable storage strategy, inventory control, preservation, inspection, handling, load-out planning, labor coordination and delivery to the vessel so spare cable and accessories are ready when a repair window opens.

QHSE

Quality, safety and marine control

Pre-mobilization readiness and method statement review
Task risk assessment and toolbox coordination
Cable handling limits, tension and bend-radius control
Lift planning and deck safety during load-out and recovery
Marine weather and operational window assessment
Inspection and test records, traceability and as-built reporting

TRACK RECORD

Selected submarine cable experience

2022

SKKL Batam - Tanjung Batu, Riau

Cable repair activity recorded in the company profile.

2025

IKK Tarjun - Stagen Batulicin - Kotabaru

Cable repair project supporting inter-island connectivity.

2026

IKK Kotabaru - Batulicin

Repair operation followed by burial work using a jet sled.

2026

Interisland Tanjung Pinang - Galang

Repair operation and cement-bag protection installation.

2026

Sorong - Jayapura

Repair, cement-bag / clamp work and additional protection activities recorded in the company profile.

SUBMARINE WORK EXPERIENCE

Complete submarine cable work experience register

The current experience register contains 21 submarine cable work packages from 2020 to 2026. It includes main lay, shore-end work, route engineering, cable protection, fault finding, repair, spare-cable deployment, jointing, burial and inspection. Some cable systems appear in multiple entries because they represent separate work packages or separate fault events.

21Work packages listed

2020-2026Experience period

PT Infrastruktur Telekomunikasi IndonesiaPrimary client in current register

012022