استاندارد ANSIIEEE Std 81-1983(Revision of IEEE Std 81-1962)TRUE

[Walking]

استاندارد

ANSIIEEE Std 81-1983(Revision of IEEE Std 81-1962)TRUE

 

IEEE Guide for Measuring Earth

Resistivity, Ground Impedance, and

Earth Surface Potentials of a Ground

System

 

 

http://s2.picofile.com/file/7925383224/ANSIIEEE_Std_81_1983_Revision_of_IEEE_Std_81_1962_TRUE.pdf.html