ASTM D1523-00(2006)
(Specification)Standard Specification for Synthetic Rubber Insulation for Wire and Cable, 90°C Operation (Withdrawn 2011)
Standard Specification for Synthetic Rubber Insulation for Wire and Cable, 90°C Operation (Withdrawn 2011)
ABSTRACT
This specification covers a crosslinked insulating rubber polymer, primarily composed of synthetic rubber, for use in electrical wires and cables. This type of insulation is suitable for continuous operation in dry locations at conductor temperatures and operating voltages not exceeding specified points. Since the insulation cannot be tested unless it has been formed around a conductor, tests shall then be done on insulated wires solely to determine the relevant property of the insulation and not to test the conductor or completed cable. Besides insulation resistance, and AC and DC voltage tests, insulations shall also conform to the following physical properties: unaged tensile strength and elongation at rupture; and tensile strength and elongation after air pressure heat and air oven tests.
SCOPE
1.1 This specification covers a crosslinked insulating compound for electrical wires and cables. The rubber polymer is primarily composed of synthetic rubber.
1.2 This type of insulation is suitable for continuous operation at conductor temperatures not exceeding 90°C in dry locations, and operating voltages not exceeding 2000 V. This insulation may have low-temperature limitations. Consult the manufacturer for specific recommendations for installation.
1.3 In many instances the insulation cannot be tested unless it has been formed around a conductor. Therefore, tests are done on insulated wire in this standard solely to determine the relevant property of the insulation and not to test the conductor or completed cable.
1.4 Whenever two sets of values are presented, in different units, the values in the first set are the standard, while those in parentheses are for information only.
WITHDRAWN RATIONALE
This specification covers a crosslinked insulating compound for electrical wires and cables. The rubber polymer is primarily composed of synthetic rubber.
Formerly under the jurisdiction of Committee D09 on Electrical and Electronic Insulating Materials, this test method was withdrawn in August 2011. This standard is being withdrawn without replacement because cables with these materials are not manufactured and used.
General Information
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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
An American National Standard
Designation: D1523 – 00 (Reapproved 2006)
Standard Specification for
Synthetic Rubber Insulation for Wire and Cable, 90°C
Operation
This standard is issued under the fixed designation D1523; 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. Physical Properties
1.1 This specification covers a crosslinked insulating com- 4.1 Table 1 lists the unaged and aged physical property
pound for electrical wires and cables. The rubber polymer is requirements.
primarily composed of synthetic rubber. 4.2 Thickness of Insulation —Table number 1A of Test
1.2 This type of insulation is suitable for continuous opera- Methods D470 lists the minimum average thickness for the
tion at conductor temperatures not exceeding 90°C in dry insulation. The required minimum thickness is 90 % of that
locations, and operating voltages not exceeding 2000 V. This given in Table number 1A of Test Methods D470.
insulation may have low-temperature limitations. Consult the
manufacturer for specific recommendations for installation. TABLE 1 Physical Properties for Synthetic Rubber Insulation,
A
90°C Operation
1.3 In many instances the insulation cannot be tested unless
Unaged Requirements:
it has been formed around a conductor. Therefore, tests are
Tensile strength, min, psi (MPa) 700 (4.8)
done on insulated wire in this standard solely to determine the
Elongation at rupture, min, % 300
relevant property of the insulation and not to test the conductor
Set in 2-in. (or 50-mm) gage length, max, % 25
Aged Requirements:
or completed cable.
After Air Pressure Heat Test at 1276 1°Cfor 42
1.4 Whenever two sets of values are presented, in different
h:
units, the values in the first set are the standard, while those in
Tensile strength and elongation, min, percentage 50
of unaged value
parentheses are for information only.
After Air Oven Test at 121 6 1 °C for 168 h:
Tensile strength and elongation, min, percentage 50
2. Referenced Documents
of unaged value
2.1 ASTM Standards:
A
The values specified are applicable to insulation having a nominal wall
D470 Test Methods for Crosslinked Insulations and Jackets thickness of 0.030 in. (0.76 mm) or greater.
for Wire and Cable
D1711 Terminology Relating to Electrical Insulation
5. Electrical Requirements
5.1 Order of Testing—Perform the ac voltage, insulation
3. Terminology
resistance, and dc voltage tests in that order when any of these
3.1 Definitions:
tests are required. The sequence for other testing is not
3.1.1 For definitions of terms used in this specification refer
specified.
to Terminology D1711.
5.2 AC Voltage Test—Unless otherwise specified, omit this
3.2 Definitions of Terms Specific to This Standard:
test if the dc voltage test described in 5.4 is to be performed.
3.2.1 aging (act of), n—exposure of materials to air at 121
Test each insulated conductor for 5 min at the ac withstand
°C for 168 h or heat and pressure at 127 °C for 42 h.
voltage given inTable number 1AofTest Methods D470 under
the columns labeled “Other Than Ozone-Resisting Insula-
tions.”
This specification is under the jurisdiction of ASTM Committee D09 on
Electrical and Electronic Insulating Materials and is the direct responsibility of
5.3 Insulation Resistance:
Subcommittee D09.18 on Solid Insulations, Non-Metallic Shi
...
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