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  • IEC 60027-3:2002

    Current The latest, up-to-date edition.

    Letter symbols to be used in electrical technology - Part 3: Logarithmic and related quantities, and their units

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Language(s):  English - French, Spanish, Castilian

    Published date:  19-07-2002

    Publisher:  International Electrotechnical Committee

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    Abstract - (Show below) - (Hide below)

    Applies to logarithmic quantities and units. Quantities that can be expressed as the logarithm of a dimensionless quantity, such as the ratio of two physical quantities of the same kind, can be regarded and treated in different ways. In many cases, differences do not affect practical treatment.

    General Product Information - (Show below) - (Hide below)

    Committee TC 25
    Development Note Stability Date: 2017. (09/2017)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    06/30148641 DC : DRAFT SEP 2006 IEC 60050-112 ED1 - INTERNATIONAL ELECTROTECHNICAL VOCABULARY - PART 112: QUANTITIES AND UNITS
    DIN 32830-1:1992-01 GRAPHICAL SYMBOLS; GENERAL PRINCIPLES FOR THE FORMULATION OF GRAPHICAL SYMBOLS FOR USE ON EQUIPMENT
    CEI UNI EN 80000-13 : 2009 QUANTITIES AND UNITS - PART 13: INFORMATION SCIENCE AND TECHNOLOGY
    CEI EN 61310-2 : 2008 SAFETY OF MACHINERY - INDICATION, MARKING AND ACTUATION - PART 2: REQUIREMENTS FOR MARKING
    DIN 1313:1998-12 QUANTITIES
    NF EN 80000-13 : 2008 QUANTITIES AND UNITS - PART 13: INFORMATION SCIENCE AND TECHNOLOGY
    BIS IS/IEC 80000-13 : 2008 QUANTITIES AND UNITS - PART 13: INFORMATION SCIENCE AND TECHNOLOGY
    BS EN 80000-13:2008 Quantities and units Information science and technology
    CEI EN 62522 : 2014 CALIBRATION OF TUNEABLE LASER SOURCES
    BS EN 60255-24:2001 Electrical relays Common format for transient data exchange (COMTRADE) for power systems
    CSA Z10651-5 : 2008 : R2013 LUNG VENTILATORS FOR MEDICAL USE - PARTICULAR REQUIREMENTS FOR BASIC SAFETY AND ESSENTIAL PERFORMANCE - PART 5: GAS-POWERED EMERGENCY RESUSCITATORS
    04/30088362 DC : DRAFT NOV 2004 ISO 10651-5 - LUNG VENTILATORS FOR MEDICAL USE - PARTICULAR REQUIREMENTS FOR BASIC SAFETY AND ESSENTIAL PERFORMANCE - PART 5: GAS-POWERED EMERGENCY VENTILATORS
    CSA Z10651-5 : 2008 : INC : UPD 1 : 2011 LUNG VENTILATORS FOR MEDICAL USE - PARTICULAR REQUIREMENTS FOR BASIC SAFETY AND ESSENTIAL PERFORMANCE - PART 5: GAS-POWERED EMERGENCY RESUSCITATORS
    CEI EN 60255-24 : 2003 ELECTRICAL RELAYS - PART 24: COMMON FORMAT FOR TRANSIENT DATA EXCHANGE (COMTRADE) FOR POWER SYSTEMS
    I.S. HD 60027-2:2003 LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 2: TELECOMMUNICATIONS AND ELECTRONICS
    I.S. EN 62522:2014 CALIBRATION OF TUNEABLE LASER SOURCES
    I.S. EN 60849:1999 SOUND SYSTEMS FOR EMERGENCY PURPOSES
    EN 60027-2:2007 Letter symbols to be used in electrical technology - Part 2: Telecommunications and electronics
    OVE/ONORM EN 60027-2 : 2007 LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 2: TELECOMMUNICATIONS AND ELECTRONICS
    15/30300738 DC : DRAFT MAY 2015 BS EN 60027-2 ED 4.0 - LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 2: TELECOMMUNICATIONS AND ELECTRONICS
    BS ISO 10651-5:2006 Lung ventilators for medical use. Particular requirements for basic safety and essential performance Gas-powered emergency resuscitators
    EN 61800-2:2015 Adjustable speed electrical power drive systems - Part 2: General requirements - Rating specifications for low voltage adjustable speed a.c. power drive systems
    04/30117615 DC : DRAFT AUG 2004 IEC 61310-2 - SAFETY OF MACHINERY - INDICATION, MARKING AND ACTUATION - PART 2: REQUIREMENTS FOR MARKING
    ANSI/ASA S1.8 : 2016 REFERENCE VALUES FOR LEVELS USED IN ACOUSTICS AND VIBRATIONS
    CSA ISO/IEC 2382-16 : 2001 : R2014 INFORMATION TECHNOLOGY - VOCABULARY - PART 16: INFORMATION THEORY
    BS EN 60027-2:2007 Letter symbols to be used in electrical technology Telecommunications and electronics
    BS 7477:1991 Guide for general principles for the creation of graphical symbols for use on equipment
    03/314031 DC : DRAFT AUG 2003 BS ISO 7176-26 - WHEELCHAIRS - PART 26: VOCABULARY
    CSA Z10651-5 : 2008 LUNG VENTILATORS FOR MEDICAL USE - PARTICULAR REQUIREMENTS FOR BASIC SAFETY AND ESSENTIAL PERFORMANCE - PART 5: GAS-POWERED EMERGENCY RESUSCITATORS
    BS EN 62099:2001 Fibre optic wavelength switches. Generic specification
    BS IEC 60287-1-1 : 2006 ELECTRIC CABLES - CALCULATION OF THE CURRENT RATING - PART 1-1: CURRENT RATING EQUATIONS (100% LOAD FACTOR) AND CALCULATION OF LOSSES - GENERAL
    DIN 1301-1 Beiblatt 1:1982-04 UNITS; NAMES AND SYMBOLS ANALOGOUS TO UNITS
    I.S. EN 60027-2:2007 LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 2: TELECOMMUNICATIONS AND ELECTRONICS
    IEC 61800-2:2015 Adjustable speed electrical power drive systems - Part 2: General requirements - Rating specifications for low voltage adjustable speed a.c. power drive systems
    IEC 61156-1-1:2001 Multicore and symmetrical pair/quad cables for digital communications - Part 1-1: Capability Approval - Generic specification
    BS EN 21683:1994 Acoustics. Preferred reference quantities for acoustic levels
    BS 0-3:1997 A standard for standards Specification for structure, drafting and presentation
    BS 0-2:2005 A standard for standards Structure and drafting. Requirements and guidance
    BS 4308:1979 Specification for documentation to be supplied with electronic measuring apparatus
    AAMI ISO 10651-5 : 2006 LUNG VENTILATORS FOR MEDICAL USE - PARTICULAR REQUIREMENTS FOR BASIC SAFETY AND ESSENTIAL PERFORMANCE - PART 5: GAS-POWERED EMERGENCY RESUSCITATORS
    BS QC420101(1992) : 1992 VARISTORS FOR USE IN ELECTRONIC EQUIPMENT - BLANK DETAIL SPECIFICATION FOR SILICON CARBIDE SURGE SUPPRESSION VARISTORS - ASSESSMENT LEVEL E
    13/30248785 DC : 0 BS EN 61800-2 - ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - PART 2: GENERAL REQUIREMENTS - RATING SPECIFICATIONS FOR LOW VOLTAGE ADJUSTABLE FREQUENCY A.C. POWER DRIVE SYSTEMS
    UNI CEI EN 80000-13 : 2009 QUANTITIES AND UNITS - PART 13: INFORMATION SCIENCE AND TECHNOLOGY
    CEI 20-21/1-1 : 2007 ELECTRIC CABLES - CALCULATION OF THE CURRENT RATING - PART 1-1: CURRENT RATING EQUATIONS (100% LOAD FACTOR) AND CALCULATION OF LOSSES - GENERAL
    ISO/TR 18569:2004 Safety of machinery Guidelines for the understanding and use of safety of machinery standards
    IEC 62522:2014 Calibration of tuneable laser sources
    I.S. EN 61310-2:2008 SAFETY OF MACHINERY - INDICATION, MARKING AND ACTUATION - PART 2: REQUIREMENTS FOR MARKING
    IEC 60027-2:2005 Letter symbols to be used in electrical technology - Part 2: Telecommunications and electronics
    DIN IEC 60747-1:1987-03 SEMICONDUCTOR DEVICES; DISCRETE DEVICES AND INTEGRATED CIRCUITS; GENERAL
    BS EN 61310-2:2008 Safety of machinery. Indication, marking and actuation Requirements for marking
    BS EN 62522:2014 Calibration of tuneable laser sources
    BS EN 61800-2:2015 Adjustable speed electrical power drive systems General requirements. Rating specifications for low voltage adjustable speed a.c. power drive systems
    07/30126366 DC : 0 BS EN 80000-13 - QUANTITIES AND UNITS - PART 13: INFORMATION SCIENCE AND TECHNOLOGY
    CSA Z10651-5 : 2008 : R2018 Lung Ventilators for Medical Use - Particular Requirements for Basic Safety and Essential Performance - Part 5: Gas-Powered Emergency Resuscitators
    CSA ISO/IEC 2382-16 : 2001 : R2009 INFORMATION TECHNOLOGY - VOCABULARY - PART 16: INFORMATION THEORY
    NF EN 60027-2 : 2007 LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 2: TELECOMMUNICATIONS AND ELECTRONICS
    HD 60027-2 : 200S1 LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 2: TELECOMMUNICATIONS AND ELECTRONICS
    IEC 60287-1-1:2006+AMD1:2014 CSV Electric cables - Calculation of the current rating - Part 1-1:Current rating equations (100 % load factor) and calculation of losses - General
    IEC TR 61366-1:1998 Hydraulic turbines, storage pumps and pump-turbines - Tendering Documents - Part 1: General and annexes
    ISO 10651-5:2006 Lung ventilators for medical use Particular requirements for basic safety and essential performance Part 5: Gas-powered emergency resuscitators
    ISO 3461-1:1988 General principles for the creation of graphical symbols — Part 1: Graphical symbols for use on equipment
    IEC 61747-1:1998+AMD1:2003 CSV Liquid crystal and solid-state display devices - Part 1: Generic specification
    IEC 80000-13:2008 Quantities and units - Part 13: Information science and technology
    IEC 60416:1988 General principles for the formulation of graphical symbols
    IEC 61310-2:2007 Safety of machinery - Indication, marking and actuation - Part 2: Requirements for marking
    IEC 62099:2001 Fibre optic wavelength switches - Generic specification
    15/30274135 DC : 0 BS ISO 18405 - UNDERWATER ACOUSTICS - TERMINOLOGY
    IEEE 260.4-1996 American National Standard Letter Symbols and Abbreviations for Quantities Used in Acoustics
    DIN 5493-1:1993-02 LOGARITHMIC QUANTITIES AND UNITS; BASIC CONCEPTS; QUANTITIES AND UNITS OF INFORMATION THEORY
    IEEE 270-2006 IEEE Standard Definitions for Selected Quantities, Units, and Related Terms, with Special Attention to the International System of Units (SI)
    DIN IEC 60747-10:1987-10 SEMICONDUCTOR DEVICES; GENERIC SPECIFICATION FOR SEMICONDUCTOR DEVICES AND INTEGRATED CIRCUITS
    12/30240396 DC : 0 BS ISO 80003-2 - PHYSIOLOGICAL QUANTITIES AND THEIR UNITS - PART 2: PHYSICS
    98/230636 DC : DRAFT MARCH 98 DRAFT IEC 61010-2-031 - SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT FOR MEASUREMENT CONTROL AND LABORATORY USE 2-031: SAFETY REQUIREMENTS FOR HAND-HELD PROBE ASSEMBLIES FOR ELECTRICAL MEASUREMENT TEST
    07/30172547 DC : 0 BS EN 62074-1 - FIBRE OPTIC WDM DEVICES - PART 1: GENERIC SPECIFICATION
    NF EN 61310-2 : 2008 SAFETY OF MACHINERY - INDICATION, MARKING AND ACTUATION - PART 2: REQUIREMENTS FOR MARKING
    NFC 03 002 : 2002 LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 2: TELECOMMUNICATIONS AND ELECTRONICS
    BS QC420102(1992) : 1992 SPECIFICATIONS FOR HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS - VARISTORS FOR USE IN ELECTRONIC EQUIPMENT - BLANK DETAIL SPECIFICATION: ZINC OXIDE SURGE SUPPRESSION VARISTORS - ASSESSMENT LEVEL E
    CSA ISO/IEC 2382-16 : 2001 : R2005 : FR INFORMATION TECHNOLOGY - VOCABULARY - PART 16: INFORMATION THEORY
    UNE 21144-1-1:2012 Electric cables - Calculation of the current rating - Part 1-1: Current rating equations (100 % load factor) and calculation of losses - General
    I.S. EN 80000-13:2008 QUANTITIES AND UNITS - PART 13: INFORMATION SCIENCE AND TECHNOLOGY
    I.S. EN 61800-2:2015 ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - PART 2: GENERAL REQUIREMENTS - RATING SPECIFICATIONS FOR LOW VOLTAGE ADJUSTABLE SPEED A.C. POWER DRIVE SYSTEMS
    ISO 14617-5:2002 Graphical symbols for diagrams Part 5: Measurement and control devices
    PD ISO/TR 18569:2004 Safety of machinery. Guidelines for the understanding and use of safety of machinery standards.
    EN 62099:2001 Fibre optic wavelength switches - Generic specification
    EN 80000-13:2008 Quantities and units - Part 13: Information science and technology
    EN 62522:2014 Calibration of tuneable laser sources
    EN 61310-2:2008 Safety of machinery - Indication, marking and actuation - Part 2: Requirements for marking

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO/IEC 2382-1:1993 Information technology Vocabulary Part 1: Fundamental terms
    ISO 31-11:1992 Quantities and units Part 11: Mathematical signs and symbols for use in the physical sciences and technology
    ISO 31-0:1992 Quantities and units Part 0: General principles
    ISO 31-2:1992 Quantities and units Part 2: Periodic and related phenomena
    IEC 60027-2:2005 Letter symbols to be used in electrical technology - Part 2: Telecommunications and electronics
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