At JSM we have a rapid, reliable and resilient fault response and maintenance capability backed by decades of experience and long-standing partnerships with National Grid and UK DNOs.
Operating 24/7, our in-house teams are equipped to manage faults across 11kV to 400kV XLPE and fluid/gas-filled cable systems, offering expert jointing, repair, and maintenance.
Enabled by a fleet of 220+, our capabilities include fluid-filled cable pumping, oil sampling, PFT dosing and leak detection, and advanced fault finding supported by hydraulic systems. We also deliver cable and hydraulic system design, system studies, and decommissioning and recycling services, ensuring full lifecycle support. All services are delivered using our own trained personnel, plant, and equipment, ensuring quality, safety, and rapid mobilisation.
Services include:
- 24/7 fault response
- Point of connection Mast
- Screwpile Anchors
- Asbestos Removal
- NICE® (Non-Intrusive Cable Extraction)
- NITE (Non-Intrusive Tank Extraction)
- 11kV-400kV XLPE & fluid/Gas-filled cable jointing, maintenance & repair
- Fluid-filled cable pumping
- Oil sampling
- Fluid & gas-filled PFT Dosing
- PFT Leak detection
- Fault finding
- Hydraulic support
- Cable System Design
- Hydraulic System Design
- Cable system studies
- Fluid-filled cable system assessments and surveys
- Cable system decommissioning & recycling services
