陈 谦（山东意匠建筑设计有限公司，济南市 250022）

张金勇（济南工程职业技术学院，济南市 250200）

Electrical Safety Protection Measures Based on Risk Analysis

CHEN Qian(Shandong Yijiang Architecture Design Co.,Ltd.,Ji’nan 250022,China)

ZHANG Jinyong(Jinan Engineering Vocational Technical College,Ji’nan 250200,China)

 Abstract：This paper illustrates the dialectical relationship between safety and risk based on the safety concept. Necessary analysis is conducted on various risk factors,and the requirements of tolerable risks shall be met in all activities of electric power application. Electrical standards shall be based on risk analysis. From the perspective of protection reliability,basic protection and fault protection are indispensable. When additional protection is required,independent protection devices shall be used for fault protection and additional protection,and the two protection measures shall not substitute or override each other.

Key words：safety;tolerable risk;residual risk;risk element;protection measure;triple protection;fault protection;additional protection

摘　要：从安全的概念出发，阐明安全与风险之间的辩证关系；对各类风险要素进行必要的分析，要求在电力应用各项活动中应满足可容许风险。电气标准应以风险分析为基础，从保护可靠性的角度，基本防护和故障防护不可或缺，当需要设置附加防护时，故障防护和附加防护应采用独立的保护电器，两种防护措施不应相互替代或覆盖。

关键词：安全；可容许风险；剩余风险；风险要素；保护措施；三重保护；故障防护；附加防护

中图分类号：TU899      　　  　  文献标识码：A

doi：10.3969 / j. issn.1003 － 8493.2022.11.001