ASTM D669-03
(Test Method)Standard Test Method for Dissipation Factor and Permittivity Parallel with Laminations of Laminated Sheet and Plate Materials (Withdrawn 2012)
Standard Test Method for Dissipation Factor and Permittivity Parallel with Laminations of Laminated Sheet and Plate Materials (Withdrawn 2012)
SIGNIFICANCE AND USE
It has long been recognized that dissipation factor and permittivity of laminated insulation as measured in a direction perpendicular to the laminations are not of the same magnitude as those measured parallel to the laminations. This test method provides a means of obtaining data parallel to the laminations where design parameters require this information.
SCOPE
1.1 This test method covers the determination of the dissipation factor and permittivity of stiff laminated sheet and plate insulating materials in a direction parallel with the laminations. This test method primarily includes information covering the preparation of the specimen, and details concerning the procedure required to make measurements parallel with the laminations for this particular type of material. The apparatus and general test procedure shall be in accordance with Test Methods D 150.
1.2 The values stated in inch-pound units are to be regarded as the 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 and health practices and determine the applicability of regulatory limitations prior to use. For a specific warning statement see 9.2.
WITHDRAWN RATIONALE
This test method covers the determination of the dissipation factor and permittivity of stiff laminated sheet and plate insulating materials in a direction parallel with the laminations. This test method primarily includes information covering the preparation of the specimen, and details concerning the procedure required to make measurements parallel with the laminations for this particular type of material. The apparatus and general test procedure shall be in accordance with Test Methods D0150.
Formerly under the jurisdiction of Committee D09 on Electrical Insulation, this test method was withdrawn in January 2012 in accordance with section 10.5.3.1 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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An American National Standard
Designation:D669–03
Standard Test Method for
Dissipation Factor and Permittivity Parallel with Laminations
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of Laminated Sheet and Plate Materials
This standard is issued under the fixed designation D669; 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. Selection of Test Specimens
1.1 This test method covers the determination of the dissi- 4.1 Select material for test that will not show obvious
pation factor and permittivity of stiff laminated sheet and plate defectsintheareawheretheelectrodesaretobeappliedunless
insulatingmaterialsinadirectionparallelwiththelaminations. it is the purpose of this test to show the effects of such defects
This test method primarily includes information covering the on the properties measured.
preparation of the specimen, and details concerning the proce-
5. Specimen Holder
dure required to make measurements parallel with the lamina-
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tions for this particular type of material. The apparatus and 5.1 Construct a frame from ⁄8-in. (9.5-mm) square metal
bars as shown in Fig. 1. Mill slots 0.260 in. (6.60 mm) wide
general test procedure shall be in accordance with Test Meth-
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ods D150. and ⁄16 in. (1.6 mm) deep in two inner and opposite parallel
sidesoftheframetoholdthetestmaterialinaparallelposition.
1.2 The values stated in inch-pound units are to be regarded
as the standard. Insert threaded studs, equipped with nuts, in the open ends of
theslottedbarstoreceivethe(unmilled)clampingbarsthatare
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the to be drawn tightly on the specimen pile-up.
responsibility of the user of this standard to establish appro-
6. Electrodes
priate safety and health practices and determine the applica-
6.1 Preparetwothinaluminumfoilelectrodes,2to4in.(50
bility of regulatory limitations prior to use. For a specific
to 100 mm) in diameter, depending on the frequency and the
warning statement see 9.2.
type of circuit used in the measurement (see the Appendix of
2. Referenced Documents
Test Methods D150). Preferably, use an electrode diameter so
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that the capacitance measured is greater than 50 pF. Use of
2.1 ASTM Standards:
D150 Test Methods for AC Loss Characteristics and Per- smaller diameter electrodes increases the effects of stray
capacitances and decreases the precision of the measurements.
mittivity (Dielectric Constant) of Solid Electrical Insula-
tion
7. Preparation of Test Specimens
3. Significance and Use
7.1 Cut strips of material 0.250 + 0.005 − 0.001 in.
3.1 It has long been recognized that dissipation factor and (6.35+0.013−0.003mm)wideby5.2560.015in.(133.35 6
0.38 mm) long in sufficient quantity to provide a pile-up of
permittivity of laminated insulation as measured in a direction
perpendiculartothelaminationsarenotofthesamemagnitude about 5.25 in. (134 mm) when stacked with the cut edges
exposed.
as those measured parallel to the laminations.This test method
provides a means of obtaining data parallel to the laminations 7.2 Prepare two sets of test specimen pile-ups, one with the
longdimensioninthemachinedirectionofthematerialandthe
where design parameters require this information.
other in the cross-machine direction. Where the machine
direction of the paper-base or the warp direction of the
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This test method is under the jurisdiction of ASTM Committee D09 on
fabric-base sheets is known, it shall constitute the length-wise
Electrical and Electronic Insulating Materials and is the direct responsibility of
direction. Otherwise, consider the longer direction of the sheet
Subcommittee D09.07 on Flexible and Rigid Insulating Materials.
material the lengthwise direction. If the material sheet has the
Current edition approved Oct. 1, 2003. Published November 2003. Originally
same length and width, then arbitrarily designate one dimen-
approved in 1942. Last previous edition approved in 2002 as D669–92(2002).
DOI: 10.1520/D0669-03.
sion as the length.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
7.3 Mount the strips in the specimen holder with the uncut
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
surfaces adjacent to each other and the cut edges exposed.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. When testing thick sheets of material, it is permissible to
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