
Comprehensive cable services including detection, testing, monitoring, response planning and repair.
James Fisher supports offshore wind farm operators and O&M teams with the reliable management of subsea export and array cable systems. Our work covers cable jointing (up to 400kV), cable testing and termination, project planning and management for cable activities, engineering assessments, and operational reporting to support installation, maintenance and repair throughout the lifecycle of an offshore wind farm.

Cable guardian
Our Cable Guardian service provides structured support for cable readiness and offshore response planning. This includes emergency response planning, guaranteed response times, fault detection and diagnostics, fault location and repair, spare parts management and critical spares storage, periodic cable monitoring, preapproved RAMS and mobilisation readiness. Cable Guardian helps operators maintain cable integrity and respond efficiently to unplanned cable events in challenging offshore environments.
- Comprehensive coverage: From emergency response plans to cable recommissioning, the full spectrum of our services is tailored to your needs, ensuring every aspect of cable management is covered.
- Resource security: Assured access to specialist engineers and critical equipment, ensuring mobilisation is never delayed by market constraints.
- Guaranteed response times: Defined response times for escalation, site investigation and repair mobilisation to minimise downtime and maintain operational continuity.
- Data driven insights: 24/7 SCADA visibility and cable monitoring deliver actionable data to support early issue detection and informed decision-making.
- Coordinated cable readiness: Integrated cable risk planning, fault preparedness and repair support in one unified service.
- Rapid response capability: Proactive readiness measures that enable swift, effective action when cable faults occur.

Terminations & testing (T&T)
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Over 9000 cable terminations completed
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Termination prior to cleating fitment, pulley positioning, protection, MBR, plug‑in positioning, interface work
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High Power Connector fitting (11kV–220kV)
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Fibre Optic configuration & termination
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Digital solution for progress tracking
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DPRs & As‑built dossier creation

Fault & Emergency labour and equipment provision
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Fault & Emergency response plans
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Live condition monitoring
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Periodic inspection of asset integrity
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Spares and repair part storage/management
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Call‑out & response times
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Fault & Emergency labour and equipment provision
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First response engineering

Testing services
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Sheath Test – TDR / OTDR
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Insulation, conductor resistance & continuity testing
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Line Resonance Analysis
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VLF testing
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Damped AC HV withstand tests

Cable care service suite
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Cable risk planning
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Fault readiness
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Fault repairs
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Integrated proactive strategy enabling rapid response and expert repair
Case studies
How our predictive maintenance and inspection services improved reliability across global assets.
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Transforming Offshore Operations in West Africa with R2S
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Optimising Lift Planning for FPSO Operations with Digital Twin
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Supporting Site Integrators with R2S
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How R2S Supports Mechanical Engineers
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Transforming Bridge Asset Management in Indonesia with Digital Twin
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Transforming STOs in North America
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Digital transformation in Indonesia’s Oil & Gas Sector
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News
Updates on digital innovation, inspection techniques and asset optimisation.

Serviços Marítimos Continental recognised for operational excellence by Petrobras
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James Fisher Subtech awarded an underwater inspection contract at BP Oil's import terminal
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James Fisher Subtech signs second charter for multipurpose offshore vessel to meet the UK’s offshore energy needs
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James Fisher Subtech cements commitment to UK offshore energy industry with seasonal charter agreement for IRM and construction vessel
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James Fisher Renewables supporting offshore wind cable testing and terminations for Greater Changhua, Taiwan
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JF SME Testing provides structural health monitoring system for the world’s tallest railway bridge
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Marking two years of James Fisher Asset Information Services
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OGTC project approved for Return To Scene
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Contact our team to discuss project requirements or request a consultation.

