中国和北美受限空间技术标准差异分析

Analysis on Differences between Confined Space Technical Standards of China and North America

基于受限空间作业危险性高的特点,提出了借鉴国外标准修订国内标准的理念。介绍了加拿大和美国受限空间技术标准,其技术理念表现在:受限空间典型示例和危险识别因素,要素详细完善,受限空间作业组织机构严密细致。提出了受限空间预设计优先级原则,气体环境浓度检测严格,"呼叫-回应"双向联络方式以及直接威胁生命健康进入式救援等。提出借鉴该标准修订国内标准的建议。

In allusion to high risk existing in the period of work in confined space,put forward is the idea of using international standards for reference to amend Chinese national standards.Introduced are Canadian and American technical standards on works in confined space and advanced idea of these standards.Their advancement is reflected mainly in typical examples of confined space and their hazard identification factors and element detailing and perfect,rigorous organization structure for works in confined space.Established are the design priority principle of confined space working,strict gas environment concentration inspection,the 'Call-Feedback' communication method and the immediate rescue method of life or health.Finally,it is suggested to use international standards for reference to amend relative Chinese national standards.