HD 60027-3 : 200S1
Superseded
View Superseded by
LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 3: LOGARITHMIC AND RELATED QUANTITIES, AND THEIR UNITS
01-12-2013
01-01-2007
1 Scope
2 Normative references
3 Logarithmic quantities
4 Logarithmic ratios of field quantities and power
quantities
4.1 Logarithmic ratios of field quantities
4.2 Logarithmic ratios of power quantities
4.3 Levels
4.4 Additional information on logarithmic ratios of
field quantities and power quantities
5 Logarithmic information-theory quantities
6 Other logarithmic quantities
6.1 General
6.2 Logarithmic frequency interval
7 Names, symbols, and definitions
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.
| Committee |
SR 25
|
| DevelopmentNote |
Supersedes HD 245.3 (02/2004) Supersedes UNE 21405-3. (02/2007)
|
| DocumentType |
Standard
|
| PublisherName |
European Committee for Standards - Electrical
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| DIN IEC 60027-3:2004-07 | Identical |
| IEC 60027-3:2002 | Identical |
| CEI 25-9 : 1ED 2005 | Identical |
| PN HD 60027-3 : 2006 | Identical |
| NEN HD 60027-3 : 2004 | Identical |
| I.S. HD 60027-3:2004 | Identical |