INTERNATIONAL STANDARD IEC Edition Edition consolidated with amendments and IEC standard voltages This. The standard aims to consolidate AC and traction voltages within the industry and defines the following bands: band 1 – A.C. systems V to. IEC IEC standard voltages. a.c. and d.c. equipment having nominal voltages below V a.c. or below V d.c., the a.c. voltages being intended.
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Documents Flashcards Grammar checker. Missing page numbers correspond to the Frenchlanguage pages. Reference number IEC Consolidated editions The IEC is now publishing consolidated versions of its publications. For example, standsrd numbers 1. Information relating to this publication, including its validity, is available in the IEC Catalogue of publications see below in addition to new editions, amendments and corrigenda.
Information on the subjects under consideration and work in progress undertaken by the technical committee which has prepared this publication, as well as the list of publications issued, is also available from the following: On-line information is also available on recently issued publications, stansard and replaced publications, as well as corrigenda. Please contact the Customer Service Centre see below for further information. The object of the IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields.
Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization for Standardization ISO in accordance with conditions determined by agreement between the two organizations.
Any divergence between the IEC Standard and the corresponding national or regional standard shall be clearly indicated in the latter.
The IEC shall not be held responsible for identifying any or all such patent rights. Standard Voltages, Current Ratings and Frequencies. This sixth edition supersedes the fifth edition of IECand now includes standard voltages below V a. It bears the edition number 6.
A vertical line in the margin shows where the base publication has been modified by amendments 1 and 2. The committee has decided that the contents of the base publication and its amendments 1 and 2 will remain unchanged until This publication shall not apply to voltages representing or transmitting signals or measured values.
This publication shall not apply to standard voltages of components and parts used within electrical devices or items of equipment. It excludes voltage transients, such as those due to system switching, and temporary voltage variations.
The highest voltage for equipment is the maximum value of the “highest system voltage” see 2. NOTE 1 The highest voltage for equipment is indicated for nominal system voltages higher than 1 V only. It is understood that, particularly for certain nominal system voltages, normal operation of equipment cannot be ensured up to this highest voltage for equipment, having regard to voltage-sensitive characteristics such as losses of capacitors, magnetizing current standarrd transformers, etc.
In such cases, the relevant recommendations must specify the limit to which the normal operation of this equipment can be ensured.
NOTE 2 It is understood that the equipment to be used in systems having nominal voltage not exceeding 1 V should be specified with reference to the nominal system voltage only, both for operation and for insulation. The lower values in the first and second columns are voltages to neutral and the higher values are voltages between phases.
When one value only is indicated, it refers to standxrd systems and specifies the voltage between phases.
INTERNATIONAL STANDARD IEC
The lower value in the third column is the voltage to neutral and the higher value is the voltage between lines. The transition period should be as short as possible and should not exceed the year For the utilization voltage range, in addition to the voltage variations at the supply terminals, voltage drops may occur within the consumer’s installations.
This utilization range should be taken into account by Product Committees.
It is recommended that these values should not be used for new systems to be constructed in future. In particular for a. The electrical equipment of vehicles operating international services in these countries shall be capable of withstanding this absolute maximal voltage for brief periods of up to 5 min. It is recommended that only one of the series should be used in any one country.
It is also recommended that only one of the two series of nominal voltages given for Series I should be dtandard in any one country. The values indicated are voltages between phases.
The values indicated in parentheses should be considered as non-preferred values. NOTE 1 It is recommended that in any one country the ratio between two adjacent nominal voltages should be not less than two. It is recommended that only one of the two series should be used in any one country. It is recommended that in any one country only one value in the following groups should be used for the highest voltage for equipment: The values are voltages between phases.
INTERNATIONAL STANDARD IEC 60038
NOTE In the present table, the term “geographical area” may indicate a single country, a group of countries which agree to adopt the same voltage level, or a part of a very large country. Nominal values Nominal values Preferred Supplementary Preferred Supplementary V V V V 2,4 3 4 4,5 5 voltags 6 6 7,5 9 12 12 15 15 24 24 30 36 36 40 48 48 60 60 72 80 96 Stadard 1 Because the voltage of 6038 primary and secondary cells is below 2,4 V, and the choice of the type of cell to be used in various applications will be based on properties other than the voltage, these values are not included in the table.
The relevant IEC technical committees may specify types of cells and related voltages for specific applications. NOTE 2 It is recognized that for technical and economic reasons additional voltages may be required for certain specific fields of application. To make sure that we continue to 600338 your needs, your feedback is essential. Enter the exact number of the standard: Q2 Please tell us in what capacity ies you bought the standard standaed all that apply.
Q5 This standard meets my needs: Please assess the standard in the following categories, using the numbers: Computer Max-f Fast power factor regulator Static. Lab 9 in this note. Review of LR circuits.