INTRODUCTION
During the week of Thanksgiving, a third-party contractor inadvertently damaged an existing 138kV high-pressure fluid-filled circuit in Philadelphia, resulting in a leak of dielectric fluid near the manhole wall. InfraSource was promptly notified and mobilized civil crews to address the issue. The entire repair process was completed within 12 days of the initial notification of the damage.
SCOPE OF WORK
InfraSource crews excavated the manhole wall and removed the concrete around the existing pipe to assess the damage. A temporary clamp was applied to control the leak. The repair consisted of removing existing hydraulic bypass piping and installing a welded sleeve repair. All new bypass piping and valves were installed, vacuum pulled, and the line was refilled. Carbon fiber Atlas Wrap coating was applied to the sleeve of the pipe, and heat shrink and wax tape coatings were applied to the rest of the exposed pipe for protection.
Our dedicated team brings over 100 years of combined experience installing underground high-voltage transmission lines. Contact us to learn more.
