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The Ufer ground is an electrical earth grounding method developed during World War II. It uses a concrete-encased electrode to improve grounding in dry areas. It uses a concrete-encased electrode to improve grounding in dry areas.
The electrodes for electrical grounding are often called ground rods and are often made from steel with a copper clad surface – typically 1 to 2 m long and 20 millimetres (0.79 in) in diameter. These are driven vertically into the ground and bonded together with bare copper wire . [ 1 ]
Lewis Carroll's 1865 novel Alice's Adventures in Wonderland was originally titled Alice's Adventures Under Ground. Edward Bulwer-Lytton's 1871 novel Vril. Louis Jacolliot's novel God's Sons (1873) is credited as the origin of the word A(s)gartha. Mary Lane's Mizora (1880–81) combines the hollow-Earth theme with feminism.
Created Date: 8/30/2012 4:52:52 PM
When ground soil has poor conductivity, is very shallow, or non-existent, a grounding system can be augmented by adding ground rods, counterpoise (ground ring) conductor, cable radials projecting away from the building, or a concrete building's reinforcing bars can be used for a ground conductor (Ufer ground). These additions, while still not ...
JAN PERRY COUNCILWOMAN NINTH DISTRICT ASSiSTANT PR~SIOENTPROTEMPORE May 15, 2008 Mayor Antonio VillaraiZosa 300 N. Spring Street, 3' Floor Los Angeles, CA 90012 Dear Mayor Villaraigosa,
Robin Wall Kimmerer (born September 13, 1953) is a Potawatomi botanist, author, and the director of the Center for Native Peoples and the Environment at the State University of New York College of Environmental Science and Forestry (SUNY-ESF).
Virginia Beach Police Department officers Cameron Girvin, 25, and Christopher Reese, 30, were shot and killed Friday night. The suspect is also dead.