Poor Grounding Makes for Poor Locating: A Field Study of Inaccurate Locates of Buried Communications Facilities

March 18, 2020
2:10  -  2:30 pm

Thousands of buried facility locates are performed every day. Devices used to locate buried or “underground” communication facilities require an earth return path for the current injected onto the facility being located. Localized high soil resistivity coupled with high ground water and additional buried facilities may create an environment that causes an inaccurate locate of the facility. This field study will review how cable locator devices function and the specifics of why locate accuracy was off by as much as 8 feet on multiple optical fiber cable routes.