AS IEC 60812 pdf – Analysis techniques for system reliability—Procedure for failure mode and effects analysis (FMEA)
AS IEC 60812 pdf – Analysis techniques for system reliability—Procedure for failure mode and effects analysis (FMEA) 4 Overview 4.1 Introduction Failure Modes and Effect Analysis (FMEA) is a systematic procedure for the analysis of a system to identify the potential failure modes, their causes and effects on system performance (performance of the immediate assembly and the entire system or...
AS IEC 61025 pdf – Fault tree analysis (FTA)
AS IEC 61025 pdf – Fault tree analysis (FTA) 5 General 5.1 Fault tree description and structure Several analytical methods of dependability analysis are available, of which fault tree analysis (FTA) is one. The purpose of each method and their individual or combined applicability in evaluating the flow of events or states that would be the cause of an outcome,...
AS IEC 61160 pdf – Design review
AS IEC 61160 pdf – Design review 6.6 Conduct of meeting 6.6.1 General If the panel members are not experienced in design reviews, an orientation session should be conducted explaining the general objectives, philosophy, and practice. The introductory comments should set a constructive tone and climate. The chair should review the objectives of the meeting and relate them to the...
AS IEC 61165 pdf – Application of Markov techniques
AS IEC 61165 pdf – Application of Markov techniques 5 General description The Markov techniques make use of a state transition diagram which is a representation of the reliability, availability, maintainability or safety behaviours of a system, from which system performance measures can be calculated. It models the system’s behaviour with respect to time. In this standard, a system is...
AS IEC 62308 pdf – Equipment reliability—Reliability assessment methods
AS IEC 62308 pdf – Equipment reliability—Reliability assessment methods 6.2.4 Methods for estimating reliability The following is a list of methods commonly used for assessing reliability: − similarity analysis; − durability analysis; − handbook methods. The main benefit of a reliability assessment is the identification of the major contributions to system failure, rather than the accuracy of the absolute prediction....
AS IEC 62347 pdf – Guidance on system dependability specifications
AS IEC 62347 pdf – Guidance on system dependability specifications 4 Concepts dealing with system dependability 4.1 Understanding the system 4.1.1 Purpose and objective A system is designed for a purpose. A system must have a defined objective to achieve its purpose. The purpose of a home theatre system is to provide cinema-like entertainment in a home environment. The objectives...
BS IEC 60092-306 pdf – Electrical installations in ships — Part 306: Equipment – Luminaires and lighting accessories
BS IEC 60092-306 pdf – Electrical installations in ships — Part 306: Equipment – Luminaires and lighting accessories 3Terms and definitions For the purposes of this document,the terms and definitions given in lEC 60598-1 and thefollowing apply. 3.1 lamp source made in order to produce an optical radiation, usually visible [IEV 845-07-03] 3.2 lighting accessories additional parts which are needed...
BS IEC 60951-1 pdf – Nuclear power plants — Instrumentation important to safety — Radiation monitoring for accident and post-accident conditions — Part 1: General requirements
BS IEC 60951-1 pdf – Nuclear power plants — Instrumentation important to safety — Radiation monitoring for accident and post-accident conditions — Part 1: General requirements 4 Design principles 4.1 Basic requirements related to functions The main purpose of equipment for continuous monitoring of radioactivity in accident or post- accident conditions is to continuously measure radiation levels in appropriate areas...
BS IEC 60951-2 pdf – Nuclear power plants — Instrumentation important to safety — Radiation monitoring for accident and post-accident conditions — Part 2: Equipment for continuous off-line monitoring of radioactivity in gaseous effluents and ventilation air
BS IEC 60951-2 pdf – Nuclear power plants — Instrumentation important to safety — Radiation monitoring for accident and post-accident conditions — Part 2: Equipment for continuous off-line monitoring of radioactivity in gaseous effluents and ventilation air 1 Scope This part of lEC 60951 provides general guidance on the design principles and performancecriteria for equipment for continuous off-line monitoring of...
BS IEC 60951-4 pdf – Nuclear power plants – Instrumentation important to safety – Radiation monitoring for accident and post-accident conditions — Part 4: Equipment for continuous in-line or on-line monitoring of radioactivity in process streams
BS IEC 60951-4 pdf – Nuclear power plants – Instrumentation important to safety – Radiation monitoring for accident and post-accident conditions — Part 4: Equipment for continuous in-line or on-line monitoring of radioactivity in process streams 1 Scope This part of lEC 60951 provides general guidance on the design principles and performancecriteria for equipment for continuous in-line or on-line monitoring...