GB 50257-2014
China national
standard english version:
GB
中华人民共和国国家标准
NATIONAL
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB 50257-2014
Code for construction and acceptance of electric equipment on fire and explosion hazard electrical equipment installation engineering 电气装置安装工程爆炸和火灾危险环境电气装置施工及验收规范
Issued Date:2014-12-02
Implemented Date:2015-08-01
Issued by:
The Standardization Administration of the People's Republic of China