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What is BS EN IEC 60071-1- Principles and rules of insulation co-ordination about? BS EN IEC 60071 is an international standard that discusses insulation co-ordination. The main objective of the BS EN IEC 60071-1 series is to ensure insulation systems offer the required levels of quality and performance. BS EN IEC 60071-1 is the first part in the series that applies to three-phase AC systems having the highest voltage for equipment above 1 kV. It specifies the procedure for the selection of the rated withstand voltages for the phase-to-earth, phase-to-phase, and longitudinal insulation of the equipment and the installations of these systems. BS EN IEC 60071-1
Insulation co-ordination - Definitions, principles and rules
Electrical insulation systems - Procedures for thermal evaluation - Part 32: Multifactor evaluation with increased factors during diagnostic testing
IEC 60071-1:2019 is available as IEC 60071-1:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60071-1:2019 applies to three-phase AC systems having a highest voltage for equipment above 1 kV. It specifies the procedure for the selection of the rated withstand voltages for the phase-to-earth, phase-to-phase and longitudinal insulation of the equipment and the installations of these systems. It also gives the lists of the standard withstand voltages from which the rated withstand voltages are selected. This document describes that the selected withstand voltages are associated with the highest voltage for equipment. This association is for insulation co-ordination purposes only. The requirements for human safety are not covered by this document. Although the principles of this document also apply to transmission line insulation, the values of their withstand voltages can be different from the standard rated withstand voltages. The apparatus committees are responsible for specifying the rated withstand voltages and the test procedures suitable for the relevant equipment taking into consideration the recommendations of this document. NOTE In IEC 60071-2, all rules for insulation co‑ordination given in this document are justified in detail, in particular the association of the standard rated withstand voltages with the highest voltage for equipment. When more than one set of standard rated withstand voltages is associated with the same highest voltage for equipment, guidance is provided for the selection of the most suitable set. The main changes from the previous edition are as follows: - all references are updated to current IEC standards, and the bibliography is deleted; - some definitions are clarified in order to avoid overlapping and ensure clear understanding; - letter symbols are changed and corrected in order to keep the consistency with relevant IEC standards; - some titles are changed to clarify understanding (see Clauses A.2, A.3 and Annex B).
Insulation co-ordination - Part 1: Definitions, principles and rules
Insulation co-ordination - Part 11:Definitions, principles and rules for HVDC system
Insulation co-ordination - Part 1: Definitions, principles and rules
This part of IEC 61858 gives information on the identification of electrical insulation materials and auxiliary components for the assessment of modifications to an established insulation system and gives guidance to select feasible test procedures.
Electrical insulation systems - Thermal evaluation of modifications to an established electrical insulation system (EIS) - Part 3: Clarification of EIM and auxiliary materials (IEC 112/410/CD:2017); Text in German and English
Guidance for determination of clearances, creepage distances and requirements for solid insulation for equipment with a rated voltage above 1000 V AC and 1500 V DC, and up to 2000 V AC and 3000 V DC
Insulation co-ordination - Part 2: Application guidelines
This part of IEC 60071 constitutes application guidelines and deals with the selection of insulation levels of equipment or installations for three-phase electrical systems. Its aim is to give guidance for the determination of the rated withstand voltages for ranges I and II of IEC 60071-1 and to justify the association of these rated values with the standardized highest voltages for equipment. This association is for insulation co-ordination purposes only. The requirements for human safety are not covered by this document. This document covers three-phase systems with nominal voltages above 1 kV. The values derived or proposed herein are generally applicable only to such systems. However@ the concepts presented are also valid for two-phase or single-phase systems. This document covers phase-to-earth@ phase-to-phase and longitudinal insulation. This document is not intended to deal with routine tests. These are to be specified by the relevant product committees. The content of this document strictly follows the flow chart of the insulation co-ordination process presented in Figure 1 of IEC 60071-1:2006. Clauses 4 to 7 correspond to the squares in this flow chart and give detailed information on the concepts governing the insulation coordination process which leads to the establishment of the required withstand levels. This document emphasizes the necessity of considering@ at the very beginning@ all origins@ all classes and all types of voltage stresses in service irrespective of the range of highest voltage for equipment. Only at the end of the process@ when the selection of the standard withstand voltages takes place@ does the principle of covering a particular service voltage stress by a standard withstand voltage apply. Also@ at this final step@ this document refers to the correlation made in IEC 60071-1 between the standard insulation levels and the highest voltage for equipment. The annexes contain examples and detailed information which explain or support the concepts described in the main text@ and the basic analytical techniques used.
Insulation co-ordination - Part 2: Application guidelines
IEC TS 62993, which is a Technical Specification, gives guidance to technical committees which deal with equipment having a RATED VOLTAGE of more than 1000 V AC and up to 2000 V AC, or a RATED VOLTAGE of more than 1500 V DC and up to 3000 V DC. RATED VOLTAGES up to 1000 V AC and 1500 V DC, as well as higher or lower internal voltages, are covered by IEC 60664-1. This document applies to equipment for use up to 2000 m above sea level, and provides guidance for use at higher altitudes. This document gives guidance for CLEARANCES, CREEPAGE DISTANCES and SOLID INSULATION for equipment to achieve safety. It includes methods of electric testing. NOTE Requirements for functional insulation are not specified as they are not regarded as safety requirements. This document does not deal with distances through liquid insulation; through gases other than air, and; through compressed air.
Guidance for determination of clearances, creepage distances and requirements for solid insulation for equipment with a rated voltage above 1000 V AC and 1500 V DC, and up to 2000 V AC and 3000 V DC
Electrical insulation systems. Procedures for thermal evaluation. Applications with a designed life of 5 000 h or less
Insulation coordination for equipment within low-voltage systems - Part 3: Use of coating@ potting or moulding for protection against pollution
Evaluation and qualification of electrical insulation systems (IEC 60505:2011); German version EN 60505:2011, Corrigendum to DIN EN 60505 (VDE 0302-1):2012-05, (IEC 60505:2011/COR1:2017); German version EN 60505:2011/AC:2017-03
Electrical insulation systems-Electrical stresses produced by repetitive impulses-Part 1:General method of evaluation of electrical endurance
Electrical insulation systems-Electrical stresses produced by repetitive impulses-Part 1:General method of evaluation of electrical endurance
Electrical insulation systems-Thermal evaluation of modifications to an established wire-wound EIS
Electrical insulation systems — Thermal evaluation of modifications to an established electrical insulation(EIS)— Part 1:Wire-wound winding EIS
Electrical insulating materials and systems - General method of evaluation of electrical endurance under repetitive voltage impulses
Electrical insulation systems — Thermal evaluation of modifications to an established electrical insulation(EIS)— Part 1:Wire-wound winding EIS
Electrical insulation systems — Thermal evaluation of modifications to an established electrical insulation(EIS)— Part 1:Wire-wound winding EIS
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