GB/T 22696.2-2008 in English

《GB/T 22696.2-2008电气设备的安全 风险评估和风险降低 第2部分：风险分析和风险评价》由TC25（全国电气安全标准化技术委员会）归口，主管部门为国家标准化管理委员会。
本部分给出了按GB/T 22696.1―2008对电气设备进行风险评估时的有关风险分析和风险评价的指导原则和实施办法。风险分析包括限制条件和危险源的确定及其识别方法。

Electrical equipment safety - Risk assessment and risk reduction - Part 2: Risk analysis and risk evaluation English

1 Scope

1.1 This part specifies the guiding principles and implementation methods for the relevant risk analysis and assessment of electrical equipment carried out in accordance with GB/T 22696.1-2008. Risk analysis includes the identification of restrictions and hazard and its methods.

1.2 The intended users of this part are designers, technicians or safety standard experts regarding the integration of safety into the design, manufacture, installation, maintenance or improvement of electrical equipment.

1.3 This part applies not only to safety risk assessment in the design stage and during manufacturing and trial operation process, but also to safety risk assessment in the process of retrofitting or improving electrical equipment or to assessment of existing electrical equipment, as well as risk assessment in any case e.g. unexpected incident or fault.

2 Normative References

The following normative documents contain provisions which, through reference in this part of GB/T 22696, constitute provisions of this part. For dated references, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, parties to agreements based on this part are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For undated references, the latest edition of the normative document applies.

GB/T 22696.1-2008 Electrical equipment safety - Risk assessment and risk reduction - Part 1: General requirements
GB/T 22696.3-2008 Electrical equipment safety - Risk assessment and risk reduction - Part 3: Example of hazards, hazardous situations and hazardous events

3 Terms and Definitions

For the purposes of this part of GB/T 22696, the terms and definitions given in GB/T 22696.1-2008 and the following apply.

3.1
supplier
entity, e.g. designer, manufacturer, contractor, installer, integrator, that provides or integrates equipment or services related to a manufacturing system (IMS) or a part of that system

4 Risk analysis

Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Risk analysis
4.1 General
4.2 Determining the restrictions on electrical equipment
4.3 Danger identification
4.4 Risk estimation
5 Risk evaluation
Figure 1 Bottom-up and top-down methods of danger identification
Figure 2 Conditions for occurrence of harm