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Section II.  EQUIPMENT DESCRIPTION AND DATA - TM-11-5820-1118-12P_10
THE EARTH GROUNDING SYSTEM

TM-11-5820-1118-12P Grounding Kit MK-2551A/U (NSN 5820-01-253-1760/RPSTL EIC:N/A) Manual
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Table 1-1.  Location of Major Components Item Nomenclature 1 Terminal lug 2 Clamp 3 Stake 4 Wire Assembly 5 Jumper Cable 1-11. EQUIPMENT DATA The kit consists of 15 galvanized steel stakes captive on 20 meters (65 feet) of galvanized wire rope on a reel.  All 15 pegs must be driven into the earth.  Each peg has a star cross section and is tapered from the top to the bottom.  The complete kit  weighs  25  pounds,  and  includes  a  3-pound  hammer  The  65-foot  wire  and  two  10  foot  jumper  cables  will  adequately protect a 5-ton truck. Section III.  PRINCIPLES OF OPERATION 1-12 THE EARTH GROUNDING SYSTEM a Theory.  An earth grounding system helps keep the electrical potential on metal surfaces at the same level as  the  surrounding  earth.    Earth  grounding  also  provides  a  discharge  path  for  externally  generated  electrical  surges, including lightning. An earth ground is made by electrically connecting a generator,  shelter or structure to a buried metal conductor  which  is  in  con-  tact  with  moist  subsoil  or  reaches  into  the  underground  water  table  The  type  of  ground conductor and method of installation you use depends on the climate and soil conditions of the site b Ground rods and plates.  A ground rod is generally the most effective conductor.  You may get a good ground by connecting to a buried metal object already at the site, such as a metal pipe or a steel building frame.  In  the  desert  or other places where 1-4







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