IEEE 1125-1993
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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IEEE Guide for Moisture Measurement and Control in SF6 Gas-Insulated Equipment
20-12-2013
English
30-11-1993
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1. Overview
2. Scope
3. Purpose
4. Definitions
5. Conversion of measurement units
5.1 Parts per million by volume (PPMV)
5.2 Parts per million by weight (PPMW)
5.3 Conversion from PPMV to PPMW
5.4 Dew point
5.5 Relative humidity (RH) (%)
6. Measuring instruments
6.1 Absolute humidity instruments
6.2 Relative humidity hygrometers
6.3 Operation
7. Pressure and temperature effects on moisture measurements
7.1 Pressure effects
7.2 Temperature effects
8. Moisture control
8.1 Adsorbed and absorbed moisture
8.2 Effect of vacuuming
8.3 External moisture sources
8.4 Application of desiccant
9. Acceptable moisture limits and moisture check intervals
10. Summary
11. Bibliography
Establishes guidelines for moisture level measurement, moisture data interpretation, and moisture control in gas-insulated transmission class equipment.
| Committee |
Substations
|
| DevelopmentNote |
Supersedes IEEE DRAFT 1125. (11/2004)
|
| DocumentType |
Standard
|
| Pages |
20
|
| PublisherName |
Institute of Electrical & Electronics Engineers
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| NFPA 70B : 2016 | RECOMMENDED PRACTICE FOR ELECTRICAL EQUIPMENT MAINTENANCE |
| IEEE C37.100.1-2007 | IEEE Standard of Common Requirements for High Voltage Power Switchgear Rated Above 1000 V |
| IEEE C37.122.1-2014 | IEEE Guide for Gas-Insulated Substations Rated Above 52 kV |
| IEC 60376:2005 | Specification of technical grade sulfur hexafluoride (SF<sub>6</sub>) for use in electrical equipment |
| ASTM D 2472 : 2015 : REDLINE | Standard Specification for Sulfur Hexafluoride |
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