China 'GB/T 17949.1-2000
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 17949.1-2000
Guide for measuring earth resistivity,ground impedance and earth surface potentials of a ground system--Part 1:Normal measurements 接地系统的土壤电阻率、接地阻抗和地面电位测量导则 第1部分:常规测量
Issued Date:2000-01-03
Implemented Date:2000-08-01
Issued by:
The Standardization Administration of the People's Republic of China