中华人民共和国住房和城乡建设部公告

前言

1　总则

2　术语

3　爆炸性气体环境

• 3.1　一般规定

• 3.2　爆炸性气体环境危险区域划分

• 3.3　爆炸性气体环境危险区域范围

• 3.4　爆炸性气体混合物的分级、分组

4　爆炸性粉尘环境

• 4.1　一般规定

• 4.2　爆炸性粉尘环境危险区域划分

• 4.3　爆炸性粉尘环境危险区域范围

5　爆炸性环境的电力装置设计

• 5.1　一般规定

• 5.2　爆炸性环境电气设备的选择

• 5.3　爆炸性环境电气设备的安装

• 5.4　爆炸性环境电气线路的设计

• 5.5　爆炸性环境接地设计

附录A　爆炸危险区域划分示例图及爆炸危险区域划分条件

附录B　爆炸性气体环境危险区域范围典型示例图

附录C　可燃性气体或蒸气爆炸性混合物分级、分组

附录D　爆炸性粉尘环境危险区域范围典型示例图

附录E　可燃性粉尘特性举例

本规范用词说明

引用标准名录

1 General provisions

2 Terms

3 Explosive gas atmosphere

• 3.1 General requirement

• 3.2 Classification of hazardous area in explosive gas atmosphere

• 3.3 Extension of hazardous area in explosive gas atmosphere

• 3.4 Grading and grouping of explosive gas mixture

4 Explosive dust atmosphere

• 4.1 General requirement

• 4.2 Classification of hazardous area in explosive dust atmosphere

• 4.3 Extension of hazardous area in explosive dust atmosphere

5 Electrical installations in explosive atmosphere

• 5.1 General requirement

• 5.2 Selection of electrical equipment in explosive atmosphere

• 5.3 Erection of electrical equipment in explosive atmosphere

• 5.4 Design of electrical wiring in explosive atmosphere

• 5.5 Grounding design in explosive atmosphere

Appendix A Example drawing and condition of classification of explosive hazardous area

Appendix B Typical example drawing of extension of hazardous area in explosive gas atmosphere

Appendix C Grading and grouping of explosive gas or vapor mixture

Appendix D Typical example drawing of extension of hazardous area in explosive dust atmosphere

Appendix E Example of characteristics of combustible dust

Explanation of wording in this code

List of quoted standards