ASTM D3283-98(2020)
(Specification)Standard Specification for Air as an Electrical Insulating Material
Standard Specification for Air as an Electrical Insulating Material
ABSTRACT
This specification applies to Type I gaseous air, both atmospheric and that synthesized by blending oxygen and nitrogen in proper proportions, used as an electrical insulating material in electrical equipment. Appropriately sampled specimens shall undergo tests and should adhere accordingly to chemical requirements as to dew point, and specified compositions for oxygen, carbon monoxide, carbon dioxide, and nitrogen.
SCOPE
1.1 This specification applies to air used as an electrical insulating material in electrical equipment.
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Relations
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D3283 −98 (Reapproved 2020)
Standard Specification for
Air as an Electrical Insulating Material
This standard is issued under the fixed designation D3283; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 4. Manufacture
4.1 This specification applies to both atmospheric air and to
1.1 This specification applies to air used as an electrical
air synthesized by blending oxygen and nitrogen in proper
insulating material in electrical equipment.
proportions.
1.2 This standard does not purport to address all of the
5. Composition and Properties
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5.1 Thematerialshallconformtothechemicalrequirements
priate safety, health, and environmental practices and deter-
specified in Table 1.
mine the applicability of regulatory limitations prior to use.
6. Sampling
1.3 This international standard was developed in accor-
6.1 Gaseous Air in High Pressure Metal Containers
dance with internationally recognized principles on standard-
—Extract samples from the container or containers with an
ization established in the Decision on Principles for the
appropriate pressure reducing regulator. Screw the pressure
Development of International Standards, Guides and Recom-
regulator inlet connection on to the container valve outlet.
mendations issued by the World Trade Organization Technical
Connect the regulator outlet connection to the gas sampling
Barriers to Trade (TBT) Committee.
pipe or to the gas analyzing equipment by means of metal or
glass tubing except that rubber tubing may be used to secure
2. Referenced Documents
butt joints in metal-to-glass or glass-to-glass tubing. Take care
2.1 ASTM Standards:
to ensure that all tubing is clean and dry and the sampling
D2029 Test Methods for Water Vapor Content of Electrical
apparatus is thoroughly purged of atmospheric air before the
Insulating Gases by Measurement of Dew Point
sample is taken. Where a multiplicity of containers are to be
E105 Practice for Probability Sampling of Materials
sampled, follow Practice E105 if it is considered satisfactory to
E260 Practice for Packed Column Gas Chromatography
sample less than the total number of containers.
2.2 Other Documents:
7. Test Methods
Specification G-7.1 Commodity Specification for Air
7.1 The components enumerated in this specification shall
be determined in accordance with the following:
3. Classification
7.1.1 Carbon Monoxide and Carbon Dioxide— Practice
3.1 This specification shall apply to Type I, gaseous air.
E260.
7.1.2 Oxygen—Practice E260.
7.1.3 Dew Point—Test Methods D2029.
T
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