Testing and Fault Location
Maintaining the reliability of electrical power and communications systems depends on the ability to identify, locate and resolve faults quickly. Whether onshore or offshore, faults in export and array cable systems can lead to costly delays, operational disruption and increased project risk.
SPIE Wind Connect provides end-to-end subsea cable testing and fault location services, supporting the safe commissioning and reliable operation of HV power and fibre optic cable systems. Using specialist expertise and advanced diagnostic equipment, we can identify, locate and assess a wide range of cable faults and system defects.
Our capabilities include:
- Very Low Frequency (VLF) testing to verify cable insulation integrity.
- Time Domain Reflectometry (TDR) for accurate fault location and identification of cable discontinuities.
- Optical Time Domain Reflectometry (OTDR) to verify the integrity of fibre optic elements, identifying breaks, losses and splice locations.
- High-voltage testing and diagnostic services to confirm cable readiness prior to energisation.
Early fault identification and accurate diagnosis help minimise project delays, reduce offshore intervention requirements, and support the safe, reliable operation of subsea cable infrastructure throughout its lifecycle.
High precision techniques to save you time and money
Ability to pinpoint the exact fault location
Highly technical bespoke repair capabilities
24/7 support from our highly skilled specialists
Fault Repair
For HV Power Cable faults between the core and screen, we deploy our fleet of Megger STX40 systems—2000 Joule portable fault locators—capable of applying up to 40kV DC and 32kV as a capacitive surge. These systems utilize Arc Reflection Method (ARM), Impulse Current (ICE), and
Voltage Decay techniques to rapidly pre-locate faults with precision.
If a fault is identified between the screen and the outer semi-conductive sheath, we utilise our Megger HVB10 high voltage bridge systems to precisely pinpoint and locate the issue with a high degree of accuracy.
In cases where the fault impacts internal fibre optic cables, we deploy our extensive fleet of Exfo OTDRs (Optical Time Domain Reflectometers) to accurately trace, locate, and diagnose the problem for efficient resolution.
Highly Skilled Cable Jointers
SPIE Wind Connects Cable Jointers carry out complex repairs with precision, expertly splicing and rejoining cables to restore optimal performance and long-term durability.
SPIE Wind Connects’ Cable Jointers perform complex cable repairs with exceptional precision, expertly splicing and rejoining damaged sections to restore full operational performance and ensure long-term durability of the network.
Comprehensive Solutions
At SPIE Wind Connect, we oversee the entire cable fault management process—from initial fault detection and diagnostics to complete restoration—ensuring a seamless, safe, and efficient return to service.
Our team is committed to delivering high-performance solutions backed by deep technical knowledge, hands-on experience, and an unwavering focus on quality, so your systems remain powered, connected, and reliable when it matters most.
