1 Scope
1.1 This part specifies the implementation guidelines for risk assessment of electrical equipment according to GB/T 22696.1~22696.4, which are applicable to the specific operation methods and tools used across each process and step of risk assessment, and gives the corresponding examples.
1.2 The intended users of this part are designers, technicians or safety standard experts engaging in 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. In the case that no risk assessment provision is available in the relevant product standards or the manufacturer decides not to use the relevant standards, this part can provide guidance for the product manufacturers in product design.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 22696.1-2008 Electrical equipment safety - Risk assessment and risk reduction - Part 1: General requirements
GB/T 22696.2-2008 Electrical equipment safety - Risk assessment and risk reduction - Part 2: Risk analysis and risk evaluation
GB/T 82696.3-2008 Electrical equipment safety - Risk assessment and risk reduction - Part 3: Example of hazards, hazardous situations and hazardous events
GB/T 22696.4-2011 Electrical equipment safety - Risk assessment and risk reduction - Part 4: Risk reduction
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 22696.1-2008 and GB/T 22696.4-2011 apply.
4 Steps and methods for risk assessment process
4.1 General
Foreword I
1 Scope
2 Normative references
3 Terms and definitions
4 Steps and methods for risk assessment process
4.1 General
4.2 Information for risk assessment
4.3 Determination of restrictions on electrical equipment
4.4 Identification of hazards
4.5 Harm severity evaluation
4.6 Probability of occurrence of harm
4.7 Probability of avoiding harm
4.8 Risk estimation
4.9 Risk reduction
4.10 Results of risk assessment
Annex A (Informative) Example of risk assessment and risk reduction
Bibliography
