IEC 63048:2020 pdf download

IEC 63048:2020 pdf download.Mobile remotely controlled systems for nuclear and radiological applications – General requirements
1 Scope
This document defines the general requirements for Mobile Remotely Controlled Systems (MRCSs) for nuclear and radiological applications such as integrity inspections, repair of components, handling of radioactive materials, and monitoring of physical conditions and radiation dose intensity in specific areas. (Refer to Annex A for more information regarding the main purposes of the MRCS.) MRCS is used in the concerned area where human access is difficult or impossible during normal operation, transient and accidents, and recovery from an accident in nuclear facilities. This document applies to MRCSs that are used to support nuclear and radiological facilities. These general requirements encompass high-level performance requirements regarding sensors, monitoring devices, control devices, interfacing mechanisms, simulation methods, and verification methods thereof in a normal environment or extreme environmental conditions, such as high radiation, high temperature, and high humidity environments. In this document, the term “MRCS” used hereinafter refers to a mobile remotely controlled system used for nuclear and radiological applications.
3 Terms and definitions
For the purposes of this document, the following terms and definitions are applied. ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http://www.electropedia.org/ ISO Online browsing platform: available at http://www.iso.org/obp 3.1 built-in control/diagnostics system BCDS specialized circuit of the on-board control system intended to check the state of MRCS permanently 3.2 hazard event having the potential to cause injury to plant personnel, damage to components, equipment, structures or MRCSs. Hazards are divided into internal hazards and external hazards Note 1 to entry: Internal hazards are, for example, controller fail or power loss. Note 2 to entry: External hazards are, for example, fire, flooding, earthquake and lightning. Note 3 to entry: Damage to MRCSs is added to the source. [SOURCE: IEC 61513:2011, 3.25, modified, – Note 3 to entry has been added.]3.3 mission objective description of the fundamental task performed by a system 3.4 mobile remotely controlled system MRCS robotics in nuclear instrumentation that are mobile, remotely controlled by an operator, and consisting of sub-systems, modules or assemblies EXAMPLE 1 Subsystems, modules or assemblies are, for example, mechanical and electrical/electronical controls, communications (between the operator and the robotic, and some robotic subsystems, modules or assemblies), lighting and possibly audio subsystems, modules or assemblies, sampling and monitoring subsystems, modules or assemblies, used for photographing the environment with video or still photos, sampling or monitoring the contacted air or surfaces for radioactive materials, noxious gases and particulates such as asbestos, and performing other designed activities, all controlled by the operator. 3.5 operator person designated to start, monitor, and stop the intended operation of the MRCS [SOURCE: ISO 8373:2012, 2.17, modified, – Robotic system has been replaced with MRCS.] 3.6 remote control control of a device from a distant point 3.7 risk potential that a given threat will exploit vulnerabilities of an asset or group of assets and thereby cause harm to the organization Note 1 to entry: It is measured in terms of a combination of the severity of impact from the environment, probability of the exposure time to the radiation and the controllability for MRCS. [SOURCE: IAEA Nuclear Security Series No. 17:2011, modified, – The second sentence in the definition has been removed, and Note 1 to entry has been added.] 3.8 risk assessment overall process of systematically identifying, estimating, analysing and evaluating risk [SOURCE: IAEA Nuclear Security Series No. 17:2011] 3.9 robot actuated mechanism programmable in two or more axes with a degree of autonomy, moving within its environment, to perform intended tasks [SOURCE: ISO 8373:2012, 2.6, modified – The notes have been removed.]