IEEE Std 1707-2015 pdf download – IEEE Recommended Practice for the Investigation of Events at Nuclear Facilities
2. Normative references The following referenced documents are indispensable for the application of this document (i.e., they must be understood and used, so each referenced document is cited in text and its relationship to this document is explained). For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments or corrigenda) applies. None. 3. Definitions For the purposes of this document, the following terms and definitions apply. The IEEE Standards Dictionary Online should be consulted for terms not defined in this clause. 2 barrier: A control, either physical or administrative, that functions as a layer of protection between an asset and a hazard. Barriers are established to detect, prevent, or inhibit an adverse condition. condition report: A document used to record the event investigation activities and the associated results. contributing cause: A cause that by itself would not create the problem, but did contribute to the event outcome and is important enough to be recognized as needing corrective action. event: An undesirable change in the state of plant structures, systems, components, or human (organizational) conditions (health, behavior, administrative controls, environment, etc.). extent of cause: The degree to which the root cause(s) of the event being investigated exists elsewhere and may have created or could create additional events. extent of condition: The degree to which the actual condition that prompted the investigation exists or may exist in other procedures, processes, organizational aspects, human performance, or equipment (including software); thereby rendering the facility vulnerable to a similar event. occurrence: Observable actions that culminated in the event. root cause: The basic reason(s) for a problem that, if corrected, will prevent recurrence of the problem.
4. Event investigation process 4.1 Establishing roles and responsibilities The key participants of the event investigation process range from senior management to the investigation team members. Management is responsible to provide the necessary resources, communicate standards and expectations, and ensure appropriate management involvement in the process. This subclause lists the responsibilities of key participants in the event investigation process. 4.1.1 Senior management responsibilities Senior management should take on the following responsibilities: a) Establish expectations in policies and procedures that promote effectiveness of the event investigation process. b) Participate in training on event investigation methodology and possess knowledge of this recommended practice. c) Provide the resources such that a cadre of personnel is trained in the event investigation process and methodology. d) Provide for evidence preservation as soon as safely possible after the event. e) Support the gathering of written personnel statements prior to any involved staff leaving the facility. f) Assign a manager or above, as a management sponsor.