Announcement of Ministry of Housing and Urban-Rural Development of the People's Republic of China

No.490

Announcement on Issuing the National Standard of Code for Design of 110kV-750kV Overhead Transmission Line

The Code for Design of 110kV-750kV Overhead Transmission Line is hereby approved as a Chinese national standard bearing a serial number of GB 50545-2010，and will come into effect on July 1，2010.Articles 5.0.4，5.0.5，5.0.7，6.0.3，7.0.2，7.0.9，7.0.10，7.0.17，7.0.19，13.0.1，13.0.2，13.0.4，13.0.5，13.0.11 are compulsory articles and must be enforced strictly.

This code will be published and distributed by China Planning Press as authorized by Research Institute of Standards and Norms，Ministry of Housing and Urban-Rural Development of the People's Republic of China.

Ministry of Housing and Urban-Rural Development of the People's Republic of China

January 18，2010