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NATIONAL STANDARD OF THE PEOPLE S REPUBLIC OF CHINA
Code for Design of Lightning Protection and Earthing Engineering for Telecommunication Bureaus（Stations）
GB 50689-2011
Chief Development Department：Ministry of Industry and Information Technology of the People s Republic of China
Approval Department：Ministry of Housing and Urban-Rural Development of the People s Republic of China
Implementation Date：May 1，2012
China Planning Press
Beijing 2019