Southwire HV Installation

Reliability, scalability, and flexibility for high voltage installations.

Why We Are Here

Highly skilled and factory-certified installation technicians available to help you with cable pulling, splicing, terminating, sheath bonding, and grounding. We’re with you every step of the way with responsive service, unmatched engineering support, and onsite project management—a commitment that has resulted in zero cable failures with over seven-million feet of HV cable installed.

How We Can Help

Southwire Underground Transmission Cable SystemsTM are backed by Southwire people.

Installation Technicians

Highly skilled and factory certified installation technicians


Splicing and terminating services


Emergency and repair services

Tools and Equipment

Complete cable installation tools and equipment


Complete accessory installation tools

Quality Control

Installation quality control documentation


"The underground feeds had to come in on a tight schedule, from design to operation. Southwire pulled it off."

-Mark Smith, Georgia Power Transmission Line Design Supervisor


feet of underground transmission cable installed


cable failures to date

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Complete Solutions

Southwire Underground Transmission Cable Systems™ Solutions support the complete power supply chain; providing reliability, scalability, and flexibility. > Complete line of cables from 69 kV through 400 kV > A North American exclusive supplier of NKT underground transmission accessories for 69 kV to 400 kV > Fast service response for system asset issues > Customer support services include a wide range of engineering, installation, project management, and testing > Over seven-million feet of underground transmission cable installed for customers across North America


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