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I.S. EN 60027-1:2006

Current
Current

The latest, up-to-date edition.

LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 1: GENERAL
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2006

Preview

For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

FOREWORD
SECTION 0: GENERAL
Scope
SECTION 1: RECOMMENDATIONS FOR PRINTING SYMBOLS AND NUMBERS
1.1 Symbols for quantities
    1.1.1 Symbols
    1.1.2 Rules for printing of subscripts and use of subscripts
          in electrical technology
    1.1.3 Rules
    1.1.4 Combination of symbols for quantities; elementary
          operations with quantities
    1.1.5 Substitution of letters
1.2 Names and symbols for units
    1.2.1 International symbols for units
    1.2.2 Combination of symbols for units
    1.2.3 Printing of symbols for units
    1.2.4 Printing and use of prefixes
    1.2.5 Spelling of names of units in the English language
1.3 Numbers
    1.3.1 Printing of numbers
    1.3.2 Decimal sign
    1.3.3 Multiplication of numbers
1.4 Mathematical signs and symbols
1.5 Expressions for quantities
1.6 Complex representation of quantities
SECTION 2: GENERAL RECOMMENDATIONS FOR TIME-DEPENDENT QUANTITIES
2.1 Quantities that vary with time periodically
2.2 Quantities that vary with time non-periodically
SECTION 3: SYMBOLS FOR QUANTITIES AND THEIR UNITS, SELECTED
           CONSTANTS AND SIGNS
3.1 Introduction to tables for quantities and their units
3.2 Introduction to the tables for subscripts
3.3 Introduction to the table for mathematical signs and symbols
3.4 Introduction to the tables for time-dependent quantities
Annexes
A Greek alphabet
B Glossary of terms concerning letter symbols
  B.1 Terms concerning the structure of letter symbols
  B.2 Styles of letters
      B.2.1 Names of various marks added to a kernel (X)
      B.2.2 Illustrative examples
C Examples of time-dependent quantities
  C.1 Examples of periodic quantities
  C.2 Examples of transient quantities
  C.3 Example of a random quantity
D Examples of use of source voltage and source current in
  equivalent circuits
E Special note concerning the rules for the names of
  quantities and units
F Systems of units and quantities
G Bibliography

Presents information about general quantities, units and their letter symbols and mathematical symbols that are to be used in electrical technology.

DevelopmentNote
Supersedes I.S. HD 60027-1. (11/2006) For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
DocumentType
Standard
Pages
128
PublisherName
National Standards Authority of Ireland
Status
Current
Supersedes

Standards Relationship
EN 60027-1:2006/A2:2007 Identical
IEC 60027-1:1992 Identical

ISO 31-11:1992 Quantities and units Part 11: Mathematical signs and symbols for use in the physical sciences and technology
IEC 60375:2003 Conventions concerning electric and magnetic circuits
ISO 31-2:1992 Quantities and units Part 2: Periodic and related phenomena

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