英文版 GB 50058-2014 爆炸危险环境电力装置设计规范.pdf

UDC GB NATIONALSTANDARDOF THEPEOPLE'SREPUBLICOFCHINA 中华人民共和国国家标准 P GB50058-2014 CodeforDesignofElectricalInstallations in Explosive Atmospheres 爆炸危险环境电力装置设计规范 Issued on: January 29 2014 Implemented on: October 01 2014 Jointly issued by the Ministry of Housing and Urban-RuralDevelopment (MOHURD)and the General Administration of Quality Supervision Inspection and Quarantine (AQSIQ) of the People's Republic of China
National Standard of thePeople'sRepublic of China 中华人民共和国国家标准 Code for Design of Electrical Installations in Explosive Atmospheres 爆炸危险环境电力装置设计规范 GB 50058-2014 Developed by: Branch on Chemical Industry China Association for Engineering Construction Standardization Approved by: Ministry of Housing and Urban-Rural Development of the People's Republic of China Implementation Date: October 01 2014 China Planning Press 中国计划出版社 2014 Beijing
Announcement of theMinistry ofHousing andUrban-Rural Development ofthePeople'sRepublicof China No.319 Announcement on Publishing the National Standard "Code for Design of Electrical Installations in Explosive Atmospheres" *Code for Design of Electrical Installtions in Explosive Atmospheres" has been approved as a national standard with a serial number of GB 50058-2014 and shall be implemented from October 01 2014 in which Item (1) of Article 5.2.2 and Article 5.5.1 are mandatory provisions which should be implemented strictly. The former one shall be abolished at the same time. Urban-Rural Development of the People's Republic of China this standard is published by Authorized by the Standard Rating Research Institute of the Ministry of Housing and China Planning Press. Ministry of Housing and Urban-Rural Development of the People's Republic of China January 29 2014
Foreword This code is jointly prepared by China Huanqiu Contracting & Engineering Corporation and other organizations concermed according to the requirements of the Ministry of Construction “Notice on Printing and Publishing Development and Revision Plan of Engineering Construction Standards in 2004" (JIANBIAO [2004] No.67). Main contents revised in this code include: general provisions explosive gas atmosphere explosive dust atmosphere classification of hazardous area and selection of equipment etc. The following contents are revised: 1 The title of this code was revised i.e. "“Electrical Installations Design Code for Explosive Atmospheres and Fire Hazard" was modified into °Code for Design of Electrical Installations in Explosive Atmospheres"; revised and placed into the text; 3The former Chapter 4 “Fire Hazard Environment” was deleted; 4 Figures were deleted from text of the former code and moved into appendixes with partial new contents; 5 Provisions for application of increased-safety equipment in Zone 1 were added; 6Classification of hazardous areas with explosive dust is changed intoZone 20 Zone 21 and Zone 22" from the former two types “Zone 10 and Zone 11"; 7Grouping of explosive dust was added: Group IIIA IIIB and IIIC; 8 “Electrical Installations in Explosive Gas Atmosphere” and “Electrical Installations in Explosive Dust Atmosphere" in the former code were bined into Chapter 5 of this code "Design of Electrical Installations in Explosive Atmosphere"; 9The concept “equipment protection level (EPL)” was added; 10 Optical radiation type of equipment and transfer system with explosion-proof e s isx dnres osd pe s studies carefully summarized experience since the implementation of the code adopted part of scientific achievements referenced relevant international standards and those of developed industrial countries widely took advices from organizations concerned in China conducted many discussions and coordinations and and finalized this code finally through review. In this codecontents about firehazard atmosphere spcified in the fomer code were deltd. For electrical design with respect to fire hazard atmosphere other special design code in China shall be implemented. This code prises 5 chapters and 5 appendixes in which main contents include: general provisions terminologies explosive gas atmosphere explosive dust atmosphere and design of electrical installations in explosive atmosphere etc.. The provisions printed in bold type in this code are mandatory ones which must be implemented strictly. Ministry of Housing and Urban-Rural Development is in charge of the administration of this code and the explanation of themandatory provisions; branch on Chemical Industry China Association for Engineering Construction Standardization is responsible for the routine management and China Huanqiu Contracting & Engineering Corporation is responsible for the explanation of specific technical contents. During the process of implementing this code if any modification and supplement is required all relevant organizations and individuals are kindly invited to send ments remendations and relevant information to China Huanqiu Contracting & Engineering Corporation (address: No. 7 Yinghuayuan East Street Chaoyang District Beijing: post code: 100029) for the convenience of reference in future. drafting staffs and chief examiners of this code: Chief development organization: China Huanqiu Contracting & Engineering Corporation Participating development organization: Wuzhou Engineering Design and Research Institute Nanyang Explosion Protected Electrical Apparatus Research Institute 1
Sinopec Engineering Incorporation China Kunlun Contracting & Engineering Corporation Warom Technology Incorporated Company Chief drafting staffs: Zhou Wei Xiong Yan Liu Hanyun Gong Puzhan Guo Jianjun Wang Caiyong Wang Suying Zhang Gang Li Jiang Li Daoben and Yu Lijian Chief examiners: Wang Zongjing Cao Jianyong Yang Guangyi Zhou Yong Xue Dingfa and Liu Zhisheng Ⅱ