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ASTM D3955電絕緣清漆標準規范

放大字體  縮小字體 發布日期:2012-02-10   瀏覽次數:227  分享到: 分享到騰訊微博
ASTM D3955電絕緣清漆標準規范
ASTM D3955 Standard Specification for Electrical Insulating Varnishes
ASTM D3955電絕緣清漆標準規范
This specification covers the tests and values for electrical insulating varnishes, as supplied, which are suitable for the impregnation and treatment of electrical coils and windings applied by dip process. The varnishes are classified according to grades: Grade DA; Grade DO; Grade DM; Grade DS; Grade DW; and Grade DT. This specification covers both flexible and rigid, solvent and solventless insulating varnishes. The insulating varnishes are classified according to thermal classes: Class 130; Class 155; Class 180; Class 200; and Class 220. Quality conformance tests shall be performed to conform to the specified requirements.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1. Scope
1.1 This specification covers the tests and values for electrical insulating varnishes, as supplied, which are suitable for the impregnation and treatment of electrical coils and windings applied by dip process.
1.2 Varnishes, flexible or rigid, included in this specification are:
Grade DA—Air-dry
Grade DO—Organic solvent containing, baking,
Grade DM—Reactive diluent containing,
Grade DS—Silicone,
Grade DW—Water containing, and
Grade DT—Thixotropic.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
Note 1—This specification resembles IEC 60455 in title only. The content is significantly different.

2. Referenced Documents (purchase separately)
ASTM Standards
D93 Test Methods for Flash Point by Pensky-Martens Closed Cup Tester
D115 Test Methods for Testing Solvent Containing Varnishes Used for Electrical Insulation
D1711 Terminology Relating to Electrical Insulation
D2519 Test Method for Bond Strength of Electrical Insulating Varnishes by the Helical Coil Test
D3056 Test Method for Gel Time of Solventless Varnishes
D3145 Test Method for Thermal Endurance of Electrical Insulating Varnishes by the Helical Coil Method
D3251 Test Method for Thermal Endurance Characteristics of Electrical Insulating Varnishes Applied Over Film-Insulated Magnet Wire
D3278 Test Methods for Flash Point of Liquids by Small Scale Closed-Cup Apparatus
D4733 Test Methods for Solventless Electrical Insulating Varnishes
D4880 Test Method for Salt Water Proofness of Insulating Varnishes Over Enamelled Magnet Wire
D5637 Test Method for Moisture Resistance of Electrical Insulating Varnishes
D5638 Test Method for Chemical Resistance of Electrical Insulating Varnishes
Military Specifications
MIL-D-16791 Detergent, General Purpose, (Liquid, Non-Ionic)
Other Standards
IEC60455 Resin Based Reactive Compounds Used for Electrical Insulation
Index Terms
varnish, air-dry; varnish, electrical; varnish, silicone; varnish, solvent containing; varnish, thixotropic; varnish, water containing; Electrical coils/windings; Electrical insulating materials--specifications; Electrical insulating varnishes--specifications; Impregnation procedures
 
 

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