Call Now
Website
Call
Business Details
Emergency
services
Expert HV Power Cable Engineering Solutions
Underground Systems has been providing engineering services and advanced technology products for electric power transmission and distribution systems for over 45 years. Our technical specialists are recognized experts in underground high voltage power cable system design, installation, rating, and operation. We work directly with electric utilities, power producers, cable manufacturers, and high voltage transmission cable asset operators to provide advanced solutions. Our team includes the largest and most experienced technical staff in North America for HV power cable system and accessory design. With modern facilities in Bethel, CT, Milford, CT, and Randolph, NJ, we combine extensive field experience with advanced laboratory capabilities for electrical and chemical testing.

We offer comprehensive technical support, including training and emergency response services. Our expertise spans heat transfer, fluid mechanics, electrostatics, magnetic field analysis, and environmental considerations. We integrate cutting-edge technologies with decades of experience to optimize power cable system assets for our clients. With a proven history of industry innovation, we deliver engineered products that enhance grid reliability and capital utilization.
Services
High Pressure Cable Accessories Engineering Services Monitoring Systems Pressurizing Plants USAmp Software Field Technical Services Dynamic Cable Ratings Cathodic Protection Monitoring Cable System Diagnostics Emergency Repairs
Highlights and features
  • We offer over 45 years of specialized experience in underground HV power cable systems.
  • Our team includes the largest technical staff in North America for cable system design.
  • We provide advanced solutions for optimizing grid reliability and capital utilization.
  • Our services integrate full project management from specification to installation.
  • Recognized experts in high voltage cable design and diagnostic systems development.
Services
High Pressure Cable Accessories
We design and manufacture high-pressure pipe-type cable accessories including splices, terminations, and custom joint kits for voltage ranges up to 345kV. Our products meet IEEE standards for performance and safety. These accessories ensure reliable operation of underground transmission systems through proprietary O-ring seals and cast epoxy insulators.
Monitoring Systems
Our monitoring systems provide real-time cable condition diagnostics including leak detection, thermal monitoring, and cathodic protection analysis. These systems enable predictive maintenance for underground power infrastructure. The technology includes 24-hour leak monitoring and dynamic ampacity rating calculations based on environmental factors.
Engineering Services
We offer comprehensive engineering services covering system evaluation, design specifications, staff training, and project management. Our expertise includes thermal modeling, electromagnetic analysis, and hydraulic system design. We support complete project lifecycles from initial concept through installation and commissioning.
Pressurizing Plants
We design and supply pressurizing and cooling plants for high-pressure fluid-filled cable systems. These plants incorporate smart diagnostics and remote monitoring capabilities. Our solutions increase cable rating capacity by up to 60% through advanced refrigeration technology and PLC-based control systems.
USAmp Prime Software
Our USAmp Prime software provides ampacity calculations for underground cable systems. It models steady-state and transient conditions for multiple cable configurations. The software supports dynamic rating calculations based on real-time temperature measurements and environmental conditions.
Questions
What services does Underground Systems provide?
We specialize in engineering services and technology products for high-voltage power transmission systems including cable accessories, monitoring systems, and pressurizing plants.
Do you offer 24/7 emergency services?
Yes, we provide 24-hour leak monitoring and emergency repair services for critical power infrastructure.
What industries do you serve?
We primarily serve electric utilities, power producers, and cable installation companies focused on underground high-voltage transmission networks.
What is USAmp Prime software?
This software provides ampacity calculations for underground cable systems, supporting dynamic rating calculations based on real-time environmental conditions.
How long have you been in business?
We have been supporting the utility industry for over 45 years with engineering solutions for underground power cable systems.
Do you provide technical training?
Yes, we offer training programs covering cable system hydraulics, diagnostic systems, and installation techniques for utility engineers.