Infrasource News Project Spotlight: Plymouth 138/147 Mainstem Replacement

Project Spotlight: Plymouth 138/147 Mainstem Replacement

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InfraSource has successfully delivered various solutions to the Electric Distribution and Transmission industry, and our team brings over 100 years of combined experience installing underground high voltage transmission lines.

With the completion of this job in Plymouth, Pennsylvania, the crew successfully reduced the likelihood of disruption, leaks, failures and other hazards associated with outdated infrastructure.

Before starting work, the team conducted a thorough inspection of the existing infrastructure to determine its condition and the necessary work. They checked for any potential hazards, existing utilities and environmental concerns that could affect the process.

This project involved the installation of several complex components, including about 10,000 feet of four to five-inch duct package, one manhole, 24, 207-feet of three phase cable, elbow sets, two underground switches and six poles.

The crew used cold splicing to join wires and cable and interruption splicing to join conductors. These required strict adherence to safety protocols due to exposure to high voltages – particularly interruption
splicing, as it is performed while systems are live.

Aerial terminations were performed to connect the overhead lines to the power grid. These had to be Carefully done with safety protocols at the forefront due to the high voltage involved, and the fact they have to be able to withstand wind, rain and ice.

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