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  2. Utility location - Wikipedia

    en.wikipedia.org/wiki/Utility_location

    Utility locating is the process of identifying and labeling public utility mains that are underground. These mains may include lines for telecommunication , electricity distribution , natural gas , cable television , fiber optics , traffic lights , street lights , storm drains , water mains , and wastewater pipes.

  3. Cable locator - Wikipedia

    en.wikipedia.org/wiki/Cable_locator

    A cable locator or cable avoidance tool (CAT) is an instrument used for detecting the presence and approximate location of buried services in advance of undertaking excavation works. It aims to avoid accidents while excavating. [ 1 ]

  4. Murray loop bridge - Wikipedia

    en.wikipedia.org/wiki/Murray_loop_bridge

    The Murray loop bridge is a bridge circuit used for locating faults in underground or underwater cables. [1] [2] It has been used for more than 100 years [3] but is being replaced by the more precise time-domain reflectometer. One end of the faulted cable is connected through a pair of resistors to the voltage source. Also a null detector is ...

  5. Ground-penetrating radar - Wikipedia

    en.wikipedia.org/wiki/Ground-penetrating_radar

    Borehole radars utilizing GPR are used to map the structures from a borehole in underground mining applications. Modern directional borehole radar systems are able to produce three-dimensional images from measurements in a single borehole. [8] One of the other main applications for ground-penetrating radars is for locating underground utilities.

  6. Underground power line - Wikipedia

    en.wikipedia.org/wiki/Underground_power_line

    An underground power line provides electrical power with underground cables. Compared to overhead power lines, underground lines have lower risk of starting a wildfire and reduce the risk of the electrical supply being interrupted by outages during high winds, thunderstorms or heavy snow or ice storms. An added benefit of undergrounding is the ...

  7. Kokua Line: When will HECO restore underground lines? - AOL

    www.aol.com/kokua-line-heco-restore-underground...

    Jul. 12—Question : Our neighborhood has underground wiring. In January several houses lost power. HECO responded by putting in above-ground temporary hookups. More than six months later those ...