| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method of measuring earth resistances of two or more footings of a pylon. <P>SOLUTION: True values about resistances of respective footings are calculated, including a step of continuously performing selective measurements of respective footings of the pylon. A testing means is directly connected to two auxiliary electrodes arranged at a predetermined distance from the pylon, and an electric current measuring means installed around the footings of the pylon for measuring electric currents flowing along the footings. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
