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As of 2022, utility locators depend primarily on three types of utility locating equipment to do their job, including GPR, electromagnetic profiling locators, and radio frequency pipe locators. These tools are produced by a number of manufacturers, and are widely available throughout the world.
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.
Underground Service Alert ( USA) is a non-profit mutual benefit organization that links the excavation community and the owners of underground lines. Underground Service Alert has two separate call centers for California: Underground Service Alert of Northern California (USA North) and Underground Service Alert of Southern California (USA South ...
The National Electrical Safety Code (NESC) or ANSI Standard C2 is a United States standard of the safe installation, operation, and maintenance of electric power and communication utility systems including power substations, power and communication overhead lines, and power and communication underground lines.
Suction excavators are sometimes used for removing earth around buried utilities and tree roots. It can suck up liquids, e.g., water from a hollow. Typically, vacuum excavation loosens the soil with a blunt-nosed high-pressure air lance or water source and vacuums away loosened material.
For example, a unit to locate utilities and for geophysical applications will need to map anywhere from 15 feet to 100 feet. The frequency range for this type of ground penetrating radar equipment is 10-2300 MHz with a peak frequency between 100 and 1000 MHz and pulse duration of 0.2 to 4.0 ns.
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