Announcement of the Ministry of Housing and Urban-Rural Development of the People&##x0027;s Republic of China
Foreword
1 General provisions
2 Terms
3 Basic requirements
4 Installation of explosion-proof electrical equipment
4.1 General requirements
4.2 Installation of flame proof electrical equipment
4.3 Installation of increased safety and type of protection＂n＂
4.4 Installation of pressurization＂p＂
4.5 Installation of oil immersion＂o＂
4.6 Installation of intrinsic safety＂i＂
4.7 Installation of type of dust-ex
5 Electrical circuit for explosive atmosphere
5.1 General requirements
5.2 Cabling routing for explosive atmosphere
5.3 Cable and wiring in conduit for explosive atmosphere
5.4 Circuit of intrinsic safety＂i＂equipment and associated equipment
6 Electrical equipment in fire hazardous environment
6.1 General requirements
6.2 Installation of electrical equipment
6.3 Electrical circuit
7 Grounding
7.1 Protective grounding
7.2 Electrostatic proof grounding
8 Project acceptance
Appendix A Electrical clearance and creepage distance between exposed live parts，as well as between exposed live parts and metal enclosure of the explosion-proof electrical equipment
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