Skip to content
Please enter a keyword to search

  • EN 60027-7:2010

    Current The latest, up-to-date edition.

    Letter symbols to be used in electrical technology - Part 7: Power generation, transmission and distribution

    Available format(s): 

    Language(s): 

    Published date:  10-09-2010

    Publisher:  European Committee for Standards - Electrical

    Pure ENs are not available for sale, please purchase a suitable national adoption

    Sorry this product is not available in your region.

    Add To Cart

    Table of Contents - (Show below) - (Hide below)

    FOREWORD
    1 Scope
    2 Normative references
    3 Letter symbols for AC, three-phase AC, and other network
      quantities
    4 Letter symbols for space and time
    5 Letter symbols for numerical values and ratios of quantities
    6 Subscripts and superscripts
    Bibliography
    Annex ZA (normative) - Normative references to international
             publications with their corresponding European
             publications

    Abstract - (Show below) - (Hide below)

    IEC 60027-7:2010 is applicable to generation, transmission, and distribution of electric energy. It gives names and letter symbols for quantities and units. In addition, rules for multiple subscripts and their succession are given. It is an addition to IEC 60027-1. Therefore letter symbols already given in IEC 60027-1 are repeated only if they have a special meaning in the field of power generation, transmission, and distribution or if they are used in this field with special subscripts.

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

    Committee CLC/SR 25
    Document Type Standard
    Publisher European Committee for Standards - Electrical
    Status Current

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

    BS EN 61557-8:2015 Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. Equipment for testing, measuring or monitoring of protective measures Insulation monitoring devices for IT systems
    EN 61557-8:2015/AC:2016-06 Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 8: Insulation monitoring devices for IT systems
    VDI/VDE 3519 Blatt 1:2002-10 Level measurement of liquids and solids (bulk solids)
    UNE-EN 61557-8:2016 Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 8: Insulation monitoring devices for IT systems
    I.S. EN 61557-8:2015 ELECTRICAL SAFETY IN LOW VOLTAGE DISTRIBUTION SYSTEMS UP TO 1000 V A.C. AND 1500 V D.C. - EQUIPMENT FOR TESTING, MEASURING OR MONITORING OF PROTECTIVE MEASURES - PART 8: INSULATION MONITORING DEVICES FOR IT SYSTEMS

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

    IEC 60038:2009 IEC standard voltages
    IEC 60050-131:2002 International Electrotechnical Vocabulary (IEV) - Part 131: Circuit theory
    IEC 80000-6:2008 Quantities and units - Part 6: Electromagnetism
    IEC 60909-3:2009 Short-circuit currents in three-phase AC systems - Part 3: Currents during two separate simultaneous line-to-earth short circuits and partial short-circuit currents flowing through earth
    IEC 60050-811:1991 International Electrotechnical Vocabulary (IEV) - Part 811: Electric traction
    IEC 60050-195:1998 International Electrotechnical Vocabulary (IEV) - Part 195: Earthing and protection against electric shock
    IEC TR 60909-2:2008 Short-circuit currents in three-phase a.c. systems - Part 2: Data of electrical equipment for short-circuit current calculations
    EN 60909-3:2010 Short-circuit currents in three-phase a.c systems - Part 3: Currents during two separate simultaneous line-to-earth short-circuits and partial short-circuit currents flowing through earth
    IEC 60050-601:1985 International Electrotechnical Vocabulary (IEV) - Part 601: Generation, transmission and distribution of electricity - General
    IEC TR 60909-1:2002 Short-circuit currents in three-phase a.c. systems - Part 1: Factors for the calculation of short-circuit currents according to IEC 60909-0
    IEC 60050-411:1996 International Electrotechnical Vocabulary (IEV) - Part 411: Rotating machinery
    IEC 60050-151:2001 International Electrotechnical Vocabulary (IEV) - Part 151: Electrical and magnetic devices
    IEC 60050-441:1984 International Electrotechnical Vocabulary (IEV) - Part 441: Switchgear, controlgear and fuses
    IEC 60909-3 : 3.0 SHORT-CIRCUIT CURRENTS IN THREE-PHASE AC SYSTEMS - PART 3: CURRENTS DURING TWO SEPARATE SIMULTANEOUS LINE-TO-EARTH SHORT CIRCUITS AND PARTIAL SHORT-CIRCUIT CURRENTS FLOWING THROUGH EARTH
    IEC 60909-0:2016 Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents
    EN 60027-1:2006/A2:2007 LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 1: GENERAL
    EN 60027-2:2007 Letter symbols to be used in electrical technology - Part 2: Telecommunications and electronics
    IEC 60050-442:1998 International Electrotechnical Vocabulary (IEV) - Part 442: Electrical accessories
    IEC 60027-1:1992 Letters symbols to be used in electrical technology - Part 1: General
    IEC 60050-141:2004 International Electrotechnical Vocabulary (IEV) - Part 141: Polyphase systems and circuits
    IEC 60050-421:1990 International Electrotechnical Vocabulary (IEV) - Part 421: Power transformers and reactors
    IEC 60050-603:1986 International Electrotechnical Vocabulary (IEV) - Part 603: Generation, transmission and distribution of electricity - Power systems planning and management
    IEC 60050-466:1990 International Electrotechnical Vocabulary (IEV) - Part 466: Overhead lines
    EN 60909-0:2016 Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents
    EN 62428 : 2008 ELECTRIC POWER ENGINEERING - MODAL COMPONENTS IN THREE-PHASE A.C. SYSTEMS - QUANTITIES AND TRANSFORMATIONS
    IEC 60050-121:1998 International Electrotechnical Vocabulary (IEV) - Part 121: Electromagnetism
    IEC 60027-2:2005 Letter symbols to be used in electrical technology - Part 2: Telecommunications and electronics
    IEC 62428:2008 Electric power engineering - Modal components in three-phase a.c. systems - Quantities and transformations
    IEC 60050-448:1995 International Electrotechnical Vocabulary (IEV) - Part 448: Power system protection
    EN 80000-6:2008 Quantities and units - Part 6: Electromagnetism
    View more information

    • Access your standards online with a subscription

      Features

      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective