POWER TUNNELS
High voltage cable systems are often installed inside tunnels and shafts, such as in urban centres, hydroelectric generating stations, among others. Installing and servicing high voltage cable systems in this kind of confined and challenging environment requires specialized manpower, equipment and know-how.
EHV POWER PROVIDES THE FOLLOWING SERVICES FOR CABLE SYSTEMS IN TUNNELS AND SHAFTS:
- Installation of cables based on thermomechanical design
- Vertical and horizontal clamping
- Safety program and confined space entry monitoring
Services
Overview
EHV Power can provide a full
range of design, installation
and maintenance services.
SELF CONTAINED FLUID FILLED (SCFF)/LOW PRESSURE OIL FILLED (LPOF)
Also known as Low Pressure Oil Filled (LPOF) consist of cables, joints and terminations with oil-impregnated paper dielectric insulation.
HIGH PRESSURE FLUID FILLED (HPFF)/HIGH PRESSURE PIPE TYPE (HPPT)
Consist of paper insulated cables encased in steel pipes and filled with dielectric oil maintained at high pressure (typically 200-300 psi).
CROSS-LINKED POLYETHYLENE SOLID DIELECTRIC
(XLPE)
Solid dielectric insulation technologies were developed during the latter part of the 20th century, as an alternative to paper/oil insulation for cable systems.
EHV POWER IS PART OF
THE USi GROUP OF COMPANIES.
The USi Group of Companies provides engineering services and advanced technology products for the electric power delivery industry. The USi group is formed by highly specialized products and service providers including Underground Systems, EHV Power and hvGrid-tech. The USi Group is unique: in addition to designing, fabricating, installing and maintaining custom engineered products including high voltage cable accessories and pressurizing and cooling plants and associated controls, our staff provides the expertise to integrate with and support customer’s existing monitoring and control systems. USi offers a full range of services from staff training to total project execution packages.
