iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
ASTM

ASTM D115-98

(Test Method)

Standard Test Methods for Testing Solvent Containing Varnishes Used for Electrical Insulation

Standard Test Methods for Testing Solvent Containing Varnishes Used for Electrical Insulation

SCOPE
1.1 These test methods cover tests for solvent containing varnishes primarily intended to provide electrical, mechanical, and chemical protection for electrical equipment. These test methods include tests for control and performance as follows:  Procedure Section Build 37 to 41 Dielectric Strength 42 to 47 Drainage 25 to 31 Flash Point 17 to 19 Nonvolatile Matter 20 to 24 Oil Resistance 53 to 55 Preparation of Test Specimens 7 Specific Gravity 9 to 12 Temperature Index 48 to 49 Time of Drying 32 to 36 Varnish Compatibility 50 to 52 Viscosity 13 to 16
1.2 Where the entire test method is included in this standard, the precision and bias are not known unless given in the stated method.  
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 5.

General Information

Status
Historical
Publication Date
09-Feb-1998
ICS
29.035.60 - Varnished fabrics
Technical Committee
D09 - Electrical and Electronic Insulating Materials
Drafting Committee
D09.01 - Electrical Insulating Products
Current Stage
Ref Project

Relations

Replaced By
ASTM D115-02 - Standard Test Methods for Testing Solvent Containing Varnishes Used for Electrical Insulation
Effective Date
10-Sep-2002

Buy Standard

ASTM D115-98 - Standard Test Methods for Testing Solvent Containing Varnishes Used for Electrical InsulationASTM D115-98 - Standard Test Methods for Testing Solvent Containing Varnishes Used for Electrical Insulation
PreviousNext
Standard
ASTM D115-98 - Standard Test Methods for Testing Solvent Containing Varnishes Used for Electrical Insulation
English language
8 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or
withdrawn. Contact ASTM International (www.astm.org) for the latest information.
Designation: D 115 – 98 An American National Standard
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Methods for Testing
1
Solvent Containing Varnishes Used for Electrical Insulation
This standard is issued under the fixed designation D 115; 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 (e) indicates an editorial change since the last revision or reapproval.
3
1. Scope Paper Used for Electrical Insulation
D 287 Test Method for API Gravity of Crude Petroleum and
1.1 These test methods cover tests for solvent containing
2
Petroleum Products (Hydrometer Method)
varnishes primarily intended to provide electrical, mechanical,
D 295 Test Methods for Varnished Cotton Fabrics Used for
and chemical protection for electrical equipment. These test
3
Electrical Insulation
methods include tests for control and performance as follows:
D 374 Test Methods for Thickness of Solid Electrical Insu-
Procedure Section
3
lation
Build 37-41
Dielectric Strength 42-47
D 580 Specification for Greige Woven Glass Tapes and
Drainage 25-31
4
Webbings
Flash Point 17-19
D 611 Test Methods for Aniline Point and Mixed Aniline
Nonvolatile Matter 20-24
2
Oil Resistance 53-55
Point of Petroleum Products and Hydrocarbon Solvents
Preparation of Test Specimens 7
D 1475 Test Method for Density of Paint, Varnish, Lacquer,
Specific Gravity 9-12
5
and Related Products
Temperature Index 48-49
Time of Drying 32-36
D 1638 Method of Testing Urethane Foam Isocyanate Raw
Varnish Compatibility 50-52
6
Materials
Viscosity 13-16
D 1932 Test Method for Thermal Endurance of Flexible
1.2 Where the entire test method is included in this standard, 3
Electrical Insulating Varnishes
the precision and bias are not known unless given in the stated
D 2436 Specification for Forced-Convection Laboratory
method. 3
Ovens for Electrical Insulation
1.3 The values stated in SI units are to be regarded as the
D 2518 Specification for Woven Glass Fabrics for Electrical
standard. The values given in parentheses are for information 7
Insulation
only.
D 2519 Test Method for Bond Strength of Electrical Insu-
1.4 This standard does not purport to address all of the 7
lating Varnishes by the Helical Coil Test
safety concerns, if any, associated with its use. It is the
D 3145 Test Method for Thermal Endurance of Electrical
responsibility of the user of this standard to establish appro- 7
Insulating Varnishes by the Helical Coil Method
priate safety and health practices and determine the applica-
D 3251 Test Method for Thermal-Aging Characteristics of
bility of regulatory limitations prior to use. For specific hazard
Electrical Insulating Varnishes Applied Over Film-
statements, see Section 5. 7
Insulated Magnet Wire
D 3278 Test Method for Flash Point of Liquids by Small
2. Referenced Documents
5
Scale Closed-Cup Apparatus
2.1 ASTM Standards:
D 3487 Specification for Mineral Insulating Oil Used in
2
D 56 Test Method for Flash Point by Tag Closed Tester 8
Electrical Apparatus
D 93 Test Methods for Flash Point by Pensky-Martens
D 5032 Practice for Maintaining Constant Relative Humid-
2
Closed Tester 7
ity by Means of Aqueous Glycerin Solutions
D 149 Test Method for Dielectric Breakdown Voltage and
E 104 Practice for Maintaining Constant Relative Humidity
Dielectric Strength of Solid Electrical Insulating Materials 9
by Means of Aqueous Solutions
3
at Commercial Power Frequencies
D 202 Test Methods for Sampling and Testing Untreated 3. Terminology
3.1 Definitions:
1
These test methods are under the jurisdiction of ASTM Committee D-9 on
Electrical and Electronic Insulating Materials and are the direct responsibility of
4
Subcommittee D09.01 on Electrical Insulating Varnishes, Powders, and Encapsu- Annual Book of ASTM Standards, Vol 07.01.
5
lating Compounds. Annual Book of ASTM Standards, Vol 06.01.
6
Current edition approved Feb. 10, 1998. Published January 1999. Originally Discontinued. See 1991 Annual Book of ASTM Standards, Vol 08.02.
7
published as D 115 – 41 T. Last previous edition D 115 – 96. Annual Book of ASTM Standards, Vol 10.02.
2 8
Annual Book of ASTM Standards, Vol 05.01. Annual Book of ASTM Standards, Vol 10.03.
3 9
Annual Book of ASTM Standards, Vol 10.01. Annual Book of ASTM Standards, Vol 11.03.
1

---------------------- Page: 1 ----------------------
NOTICE:¬This¬standard¬has¬either¬been¬superseded¬and¬replaced¬by¬a¬new¬version¬or
discontinued.¬Contact¬ASTM¬International¬(www.astm.org)¬for¬the¬latest¬information.¬
D115
3.1.1 dielectric strength—the voltage gradient at which 4.2.6 Varnish compatibility,
dielectri
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

This May Also Interest You

ASTM
ASTM D3056-23(Test Method)
Standard Test Method for Gel Time of Solventless Varnishes

SIGNIFICANCE AND USE
4.1 Gel time is important in determining batch uniformity and some processing characteristics. It is indicative of pot life and shelf life.
SCOPE
1.1 This test method covers the determination of the gel time of a solventless varnish mixed with a catalyst, if required, and exposed to elevated temperature. There are two methods presented here. New equipment for Method A is no longer available.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 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. For a specific precaution statement, see Section 6.
Note 1: Although this standard and IEC 60455–2 differ in approach or detail, data obtained using either are technically equivalent.  
1.4 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.

  • Standard
    3 pages
    English language
    sale 15% off
  • Standard
    3 pages
    English language
    sale 15% off
ASTM
ASTM D3145-20(Test Method)
Standard Test Method for Thermal Endurance of Electrical Insulating Varnishes by Helical Coil Method

SIGNIFICANCE AND USE
5.1 This test method is used to determine the effect of exposure to elevated temperatures on the bond strength of combinations of magnet wire insulations and electrical insulating varnishes. The results are used as a guide for the comparison and selection of varnishes and combinations of varnishes and magnet wire insulation for specific applications. Test Methods D1932 and D3251 describe additional tests for determining the thermal endurance of insulating varnishes. A comprehensive evaluation of thermal characteristics includes a comparison of the thermal endurance determined in these different ways.  
5.2 This test method is useful for research and product qualifications purposes.
SCOPE
1.1 This test method covers the determination of the thermal endurance of electrical insulating varnishes alone or in combinations with magnet wire insulation. Changes in the helical coil bond strength are used as the test criteria. The coils are made from bare aluminum or copper wire, or from film- or fiber-insulated magnet wire.  
1.2 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: There is no similar or equivalent IEC standard.  
1.3 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. For a specific precautionary statement, see Section 7.  
1.4 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.

  • Standard
    3 pages
    English language
    sale 15% off
  • Standard
    3 pages
    English language
    sale 15% off
ASTM
ASTM D3955-20(Specification)
Standard Specification for Electrical Insulating Varnishes

ABSTRACT
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.
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.  
1.4 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.

  • Technical specification
    4 pages
    English language
    sale 15% off
  • Technical specification
    4 pages
    English language
    sale 15% off
ASTM
ASTM D1932-19(Test Method)
Standard Test Method for Thermal Endurance of Flexible Electrical Insulating Varnishes

SIGNIFICANCE AND USE
5.1 A major factor affecting the long term performance of insulating materials is thermal degradation. It is possible that factors, such as moisture and vibration, will cause failures after the material has been weakened by thermal degradation.  
5.2 An electrical insulating varnish is effective in protecting electrical equipment only as long as it retains its physical and electrical integrity.  
5.3 The thermal degradation of the varnish results in weight loss, porosity, crazing, and generally a reduction in flexibility. Degradation of the varnish can be detected by a decrease in dielectric strength, which is therefore used as the failure criterion for this test method.  
5.4 Electrical insulating varnishes undergo flexing in service due to vibration and thermal expansion. For this reason, this functional test includes flexing and elongation of the insulation. The electrodes used in this test method are designed to elongate the outer surface of the specimen 2 % with respect to the neutral axis of the base fiber while being tested for dielectric breakdown.
SCOPE
1.1 This test method covers the determination of the relative thermal endurance of flexible electrical insulating varnishes by determining the time necessary at elevated temperatures to decrease the dielectric breakdown of the varnish to an arbitrarily selected value when applied to a standard glass fiber fabric.  
1.2 This test method does not apply to varnishes that lose a high percentage of their dielectric breakdown voltage when flexed before elevated temperature exposure as prescribed in the screening test (Section 9). Examples of such varnishes are those used for high speed armatures and laminated structures. Also, this test method is not applicable to varnishes which distort sufficiently during thermal elevated temperature exposure so that they cannot be tested using the curved electrode assembly.  
1.3 Thermal endurance is expressed in terms of a temperature index.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
Note 1: There is no equivalent IEC or ISO standard.  
1.5 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. For specific hazard statements, see Section 7.  
1.6 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.

  • Standard
    5 pages
    English language
    sale 15% off
  • Standard
    5 pages
    English language
    sale 15% off
ASTM
ASTM D2519-19a(Test Method)
Standard Test Method for Bond Strength of Electrical Insulating Varnishes by the Helical Coil Test

SIGNIFICANCE AND USE
5.1 Values obtained by flexural tests can provide information with regard to the bond strength of the particular varnish, in combination with a particular wire, when measured under conditions described in this test method.
SCOPE
1.1 This test method covers determination of the bond strength of an electrical insulating varnish when applied to a helical coil. The helical coil can be made from bare aluminum or copper wire or from film or fiber-insulated magnet wire. Helical coils made from bare aluminum or bare copper wire will yield values of bond strength for the varnish when applied to bare metal conductors. The use of film or fiber-insulated magnet wire will show values for that particular combination of insulation and varnish.  
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
1.3 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.  See Section 7.  
1.4 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.

  • Standard
    4 pages
    English language
    sale 15% off
  • Standard
    4 pages
    English language
    sale 15% off
ASTM
ASTM D3251-19(Test Method)
Standard Test Method for Thermal Endurance Characteristics of Electrical Insulating Varnishes Applied Over Film-Insulated Magnet Wire

SIGNIFICANCE AND USE
5.1 Different combinations of varnishes and film-insulated magnet wire behave differently when exposed to elevated temperatures. This includes different varnishes tested with the same film-insulated magnet wire and a single varnish tested with different film-insulated magnet wire.  
5.2 This test method is used to determine the effect on the electrical properties of a varnish applied to film-insulated magnet wire when the combination is exposed to prescribed elevated temperatures.
SCOPE
1.1 This test method covers the determination of the thermal endurance characteristics of electrical insulating varnishes and film-insulated magnet wire in combination.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 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.
Note 1: This test method is equivalent to IEC 60172.  
1.4 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.

  • Standard
    3 pages
    English language
    sale 15% off
  • Standard
    3 pages
    English language
    sale 15% off
ASTM
ASTM D3377-04(2018)(Test Method)
Standard Test Method for Weight Loss of Solventless Varnishes

SIGNIFICANCE AND USE
4.1 The amount and composition of by-products produced by exposure of insulating varnishes to elevated temperatures can possibly:  
4.1.1 Deteriorate other insulations in the system,  
4.1.2 Cause cracking of insulation due to pressure, buildup in thick cross sections, or  
4.1.3 Corrode other parts in the assembly.  
4.2 Amount and rate of weight loss will possibly affect the thermal rating of a varnish.
SCOPE
1.1 This test method covers the determination of the percent weight loss of cured solventless electrical varnishes when exposed to elevated temperatures for prescribed periods of time.  
1.2 Results of this test method are based on 6-mm (1/4-in.) thick specimens and will not be applicable to specimens appreciably thinner or thicker than 6 mm.  
1.3 The values stated in SI units are to be regarded as the standard.  
1.4 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.
Note 1: This standard resembles IEC 60216–2 “Guide for the determination of thermal endurance properties of electrical insulating materials. Part 2: Choice of test criteria” in a number of ways, but is not consistently similar throughout. The data obtained using either standard will possibly be technically equivalent.  
1.5 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.

  • Standard
    3 pages
    English language
    sale 15% off
ASTM
ASTM D5638-18(Test Method)
Standard Test Method for Chemical Resistance of Electrical Insulating Varnishes

SIGNIFICANCE AND USE
5.1 This test method is useful for the evaluation of insulating varnish performance in chemical exposure.
SCOPE
1.1 This test method covers the mechanical performance of insulating varnishes after exposure to various chemicals.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 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. See 7.1.
Note 1: There is no IEC/ISO equivalent.  
1.4 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.

  • Standard
    2 pages
    English language
    sale 15% off
  • Standard
    2 pages
    English language
    sale 15% off
ASTM
ASTM D4880-18(Test Method)
Standard Test Method for Salt Water Proofness of Insulating Varnishes Over Enamelled Magnet Wire

SIGNIFICANCE AND USE
4.1 This test method is useful in determining the performance of varnishes over enamelled magnet wire when subjected to the specified sodium chloride solution. It is useful in evaluating the resistance of varnished magnet wire to a diluted sodium chloride solution under applied voltage.
SCOPE
1.1 This test method covers the electrical performance in a specified water solution of an insulating varnish applied over enamelled magnet wire.  
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.  
1.3 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. Specific precautionary statements are given in Section 6.
Note 1: There is no IEC method equivalent to this standard.  
1.4 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.

  • Standard
    4 pages
    English language
    sale 15% off
  • Standard
    4 pages
    English language
    sale 15% off
ASTM
ASTM D6053-14(2018)(Test Method)
Standard Test Method for Determination of Volatile Organic Compound (VOC) Content of Electrical Insulating Varnishes

SIGNIFICANCE AND USE
4.1 This test method determines the volatile organic content of an electrical insulating varnish. It utilizes a procedure where dishes containing a known amount of varnish are baked and the amount of volatile organic compound is measured. Calculations are performed to express this in g/L or lb/gal. This test method is applicable to all types of varnishes. However, waterborne varnishes while baked under the same conditions need to have water content determined and calculations performed in accordance with Practice D3960.  
4.1.1 During the cure of electrical insulating varnishes some organic material is volatilized. A determination of the amount that is volatilized is useful for estimating the amount of cured varnish on electrical units and volatile organic emissions from a manufacturing facility.
SCOPE
1.1 This test method covers the determination of the amount of volatile organic compounds emitted during cure of electrical insulating varnishes.  
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.  
1.3 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. See Section 7 for specific precautions.  
1.4 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.

  • Standard
    3 pages
    English language
    sale 15% off