HD 245.3 S3:2001
(Main)Letter symbols to be used in electrical technology - Part 3: Logarithmic quantities and units
Letter symbols to be used in electrical technology - Part 3: Logarithmic quantities and units
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.
Formelzeichen für die Elektrotechnik - Teil 3: Logarithmische Größen und Einheiten
Symboles littéraux à utiliser en électrotechnique - Partie 3: Grandeurs et unités logarithmiques
La présente norme s'applique aux grandeurs et unités logarithmiques. Les grandeurs exprimables au moyen du logarithme d'une grandeur sans dimension, qui peut être, par exemple, un rapport de deux grandeurs physiques de même nature, peuvent être interprétées et traitées de différentes manières. Mais, dans beaucoup de cas, ces différences dans les principes n'affectent pas l'utilisation pratique.
Letter symbols to be used in electrical technology - Part 3: Logarithmic quantities and units
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST HD 245.3 S3:2002
01-september-2002
Letter symbols to be used in electrical technology - Part 3: Logarithmic quantities
and units
Letter symbols to be used in electrical technology -- Part 3: Logarithmic quantities and
units
Formelzeichen für die Elektrotechnik -- Teil 3: Logarithmische Größen und Einheiten
Symboles littéraux à utiliser en électrotechnique -- Partie 3: Grandeurs et unités
logarithmiques
Ta slovenski standard je istoveten z: HD 245.3 S3:2001
ICS:
01.060 9HOLþLQHLQHQRWH Quantities and units
01.075 Simboli za znake Character symbols
29.020 Elektrotehnika na splošno Electrical engineering in
general
SIST HD 245.3 S3:2002 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST HD 245.3 S3:2002
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SIST HD 245.3 S3:2002
HARMONIZATION DOCUMENT HD 245.3 S3
DOCUMENT D'HARMONISATION
HARMONISIERUNGSDOKUMENT July 2001
ICS 01.060 Supersedes HD 245.3 S2:1991
English version
Letter symbols to be used in electrical technology
Part 3: Logarithmic quantities and units
(IEC 60027-3:1989 + A1:2000)
Symboles littéraux à utiliser en Formelzeichen für die Elektrotechnik
électrotechnique Teil 3: Logarithmische Größen und
Partie 3: Grandeurs et unités Einheiten
logarithmiques (IEC 60027-3:1989 + A1:2000)
(CEI 60027-3:1989 + A1:2000)
This Harmonization Document was approved by CENELEC on 2001-05-01. CENELEC members are
bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for
implementation of this Harmonization Document on a national level.
Up-to-date lists and bibliographical references concerning such national implementation may be obtained on
application to the Central Secretariat or to any CENELEC member.
This Harmonization Document exists in three official versions (English, French, German).
CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway,
Portugal, Spain, Sweden, Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2001 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. HD 245.3 S3:2001 E
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SIST HD 245.3 S3:2002
HD 245.3 S3:2001 - 2 -
Foreword
The text of the International Standard IEC 60027-3:1989 + A1:2000, prepared by IEC TC 25,
Quantities and units, and their letter symbols, was submitted to the formal vote and was approved by
CENELEC as HD 245.3 S3 on 2001-05-01 without any modification.
This Harmonization Document supersedes HD 245.3 S2:1991.
The following dates were fixed:
– latest date by which the existence of the HD
has to be announced at national level (doa) 2001-10-01
– latest date by which the HD has to be implemented
at nati
...
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