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  • Singapore Standards eShop
    signals of electronic lighting equipment This electronic lighting equipment should be in line with the requirements of IEC 61347 with the addition of d c supplies This second edition cancels and replaces the first edition published in 2009 This edition constitutes a technical revision This edition includes the following significant technical changes with respect to the previous edition a collection of all bus timing requirements defined in IEC 62386 101 2009 and IEC 62386 102 2009 and rework of the timing requirements to facilitate the preparation of a future control devices standard taking particular account of the requirements for multi master systems The 10 tolerances have been replaced by minimum and maximum timing values b integration of multi master timing requirements c extension of the defined forward frames d addition of wiring requirements e improvement of the bus power supply requirements f improvement of test sequences and description of the test sequences in the form of pseudo code instead of flow charts This publication is to be read in conjunction with IEC 62386 102 2014 Adoption IEC Committee Preview Download as PDF 19 Pages 211 KB Amendment Status Current Available for Purchase For sale in Singapore only Hard Copy eCopy

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  • Singapore Standards eShop
    and installation conditions and establishes test procedures The object of IEC 61000 4 2 2008 is to establish a common and reproducible basis for evaluating the performance of electrical and electronic equipment when subjected to electrostatic discharges In addition it includes electrostatic discharges which may occur frompersonnel to objects near vital equipment IEC 61000 4 2 2008 defines typical waveform of the discharge current range of test levels test equipment test setup test procedure calibration procedure and measurement uncertainty IEC 61000 4 2 2008 gives specifications for test performed in laboratories and post installation tests performed on equipment in the final installation This second edition cancels and replaces the first edition published in 1995 its amendment 1 1998 and its amendment 2 2000 and constitutes a technical revision It has the status of a basic EMC publication in accordance with IEC Guide 107 The main changes with respect to the first edition of this standard and its amendments are the following the specifications of the target have been extended up to 4 GHz An example of target matching these requirements is also provided information on radiated fields from human metal discharge and from ESD generators is provided measurement uncertainty considerations

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  • Singapore Standards eShop
    for batteries made from them for use in portable applications Edition 2012 No of Pages 74 ICS Classification Comments Synopsis IEC 62133 2012 is available as IEC Standards 62133 2012 which contains the International Standard and its Redline version showing all changes of the technical content compared to the previous edition IEC 6213 3 2012 specifies requirements and tests for the safe operation of portable sealed secondary cells and batteries other than button containing alkaline or other non acid electrolyte under intended us e and reasonably foreseeable misuse This edition includes the follow ing significant technical changes with respect to the previous editi on update of assembly of cells into batteries 5 5 addition of design recommendations for lithium system only 5 6 2 separation of nickel systems and lithium systems Clause 6 addition of specific requirements and tests for lithium systems Clause 8 addition of charging of secondary lithium ion cells for safe use Annex A Adoption IEC Committee Preview Download as PDF 11 Pages 282 KB Amendment Status Current Available for Purchase For sale in Singapore only Hard Copy eCopy CD Rom Availability Call to Check for Availability Availability Yes Availability NA Price 310 80 price exclude GST

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  • Singapore Standards eShop
    2 and IEC 61508 3 The references should be considered as basic references to methods and tools or as examples and may not represent the state of the art This edition constitutes a technical revision It has been subject to a thorough review and incorporates many comments received at the various revision stages Adoption IEC Committee Preview Download as PDF 18 Pages 376 KB Amendment Status Current Available for Purchase

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  • Singapore Standards eShop
    Protection ec EPL Gc Level of Protection eb applies to equipment or Ex Components including their connections conductors windings lamps and batteries but not including semiconductors or electrolytic capacitors Level of Protection ec applies to equipment or Ex Components including their connections conductors windings lamps and batteries and also including semiconductors and electrolytic capacitors The requirements of this standard apply to both Levels of Protection unless otherwise stated For Level of Protection eb this standard applies to electrical equipment where the rated voltage does not exceed 11 kV r m s a c or d c For Level of Protection ec this standard applies to electrical equipment where the rated voltage does not exceed 15 kV r m s a c or d c This standard supplements and modifies the general requirements of IEC 60079 0 Where a requirement of this standard conflicts with a requirement of IEC 60079 0 the requirement of this standard takes precedence This fifth edition cancels and replaces the fourth edition published in 2006 and constitutes a technical revision Refer to the Foreword of the document for a complete listing of the technical changes between edition 5 0 and previous edition of the document Keywords

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  • Singapore Standards eShop
    Effects and Criticality Analysis FMECA and gives guidance as to how they may be applied to achieve various objectives by providing the procedural steps necessary to perform analysis identifying appropriate terms defining basic principles providing examples of the necessary worksheets or other tabular forms Adoption IEC Committee Preview Download as PDF 11 Pages 490 KB Amendment Status Current Available for Purchase For sale in Singapore only Hard Copy eCopy CD

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  • Singapore Standards eShop
    components equipment or other articles to be used transported or stored at low temperature Cold tests cover by this standard do not enable the ability of specimens to withstand or operate during the temperature variations to be assessed In this case it would be necessary to use IEC 60068 2 14 The cold tests are subdivided as follows Cold tests for non heat dissipating specimens with gradual change of temperature Ab Cold test for heat dissipating specimens with gradual change of temperature Ad with gradual change of temperature specimen powered throughout Ae The procedures given in this standard are normally intended for specimens that achieve temperature stability during the performance of the test procedure Temperature chamber s are constructed and verified in accordance with specifications IEC 60068 3 5 and IEC 60068 3 7 Further guidance for dry heat and cold tests can be found in IEC 60068 3 1 and general guidance in IEC 60068 1 This sixth edition deals with cold tests applicable both to non heat dissipating and heat dissipating specimens For non heat dissipating specimens Tests Ab and Ad do not deviate essentially from earlier issues Test Ae has been added primary for testing equipment that

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    be used alone to specify an ASSEMBLY or used for a purpose of determining conformity ASSEMBLIES shall comply with the relevant part of the IEC 61439 series Parts 2 onwards This standard applies to low voltage switchgear and controlgear assemblies ASSEMBLIES only when required by the relevant ASSEMBLY standard as follows ASSEMBLIES for which the rated voltage does not exceed 1 000 V in case of a c or 1 500 V in case of d c stationary or movable ASSEMBLIES with or without enclosure ASSEMBLIES intended for use in connection with the generation transmission distribution and conversion of electric energy and for the control of electric energy consuming equipment ASSEMBLIES designed for use under special service conditions for example in ships and in rail vehicles provided that the other relevant specific requirements are complied with ASSEMBLIES designed for electrical equipment of machines provided that the other relevant specific requirements are complied with This second edition cancels and replaces the first edition published in 2009 It constitutes a technical revision This second edition includes the following significant technical changes with respect to the last edition of IEC 61439 1 revision of service conditions in Clause 7 numerous changes regarding verification methods in Clause 10 modification of routine verification in respect of clearances and creepage distances see 11 3 adaption of the tables in Annex C and Annex D to the revised requirements and verification methods revision of the EMC requirements in Annex J shifting of tables from Annex H to new Annex N new Annex O with guidance on temperature rise verification new Annex P with a verification method for short circuit withstand strength integration of the content of IEC TR 61117 update of normative references general editorial review Adoption IEC Committee Preview Download as PDF 29 Pages 453 KB

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