Standard Specification for Polyester Film Pressure-Sensitive Electrical Insulating Tape

ABSTRACT
This specification covers the manufacture, testing, and standard requirements of four types of electrical insulating tape consisting of a polyester plastic film coated on one side with a pressure-sensitive adhesive. Besides differences in nominal thickness, Type 1 is a general-purpose tape coated with a thermoplastic adhesive that is not chemically heat reactive, while Types 2, 3, and 4 are general-purpose tapes coated with a heat-reactive thermosetting adhesive. The tapes shall be tested accordingly and consequently conform to standard widths, lengths, and thicknesses, and other specific properties such as elongation, penetraction, high-humidity insulation resistance (measure of corrosion), strain relief (shrinkage), breaking strength, dielectric breakdown, and adhesion to steel and backing.
SCOPE
1.1 This specification covers electrical insulating tape consisting of a polyester plastic film coated on one side with a pressure-sensitive adhesive.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parenthesis are provided for information only.
Note 1 - This standard and IEC 60454-3-2 and -3 are similar but not equivalent in all details.

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30-Sep-2006
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ASTM D2484-06 - Standard Specification for Polyester Film Pressure-Sensitive Electrical Insulating Tape
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D2484 – 06
Standard Specification for
1
Polyester Film Pressure-Sensitive Electrical Insulating Tape
This standard is issued under the fixed designation D2484; 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. Classification
1.1 This specification covers electrical insulating tape con- 4.1 This specification includes the requirements for four
sisting of a polyester plastic film coated on one side with a types as follows:
pressure-sensitive adhesive. 4.1.1 Type 1—General-purpose tape, nominal thickness
1.2 The values stated in SI units are to be regarded as the 0.06 mm (0.0025 in.) and coated with a thermoplastic adhesive
standard. The values given in parenthesis are provided for which is not chemically heat reactive.
information only. 4.1.2 Type 2—General-purpose tape, nominal thickness
0.06 mm (0.0025 in.) and coated with a heat-reactive thermo-
NOTE 1—This standard and IEC 60454–3–2 and –3 are similar but not
setting adhesive.
equivalent in all details.
4.1.3 Type 3—General-purpose tape, nominal thickness
2. Referenced Documents
0.09 mm (0.0035 in.) and coated with a heat-reactive thermo-
2
setting adhesive.
2.1 ASTM Standards:
4.1.4 Type 4—General-purpose tape, nominal thickness
D876 Test Methods for Nonrigid Vinyl Chloride Polymer
0.025 mm (0.0010 in.) and coated with a heat-reactive ther-
Tubing Used for Electrical Insulation
mosetting adhesive.
D1000 Test Methods for Pressure-Sensitive Adhesive-
Coated Tapes Used for Electrical and Electronic Applica-
5. Materials and Manufacture
tions
5.1 The polymer used as the backing shall be clear polyeth-
D1711 Terminology Relating to Electrical Insulation
ylene terephthalate sheet.
D2305 Test Methods for Polymeric Films Used for Electri-
5.2 The pressure-sensitive adhesive coating shall be free
cal Insulation
from lumps and bare spots. There shall be no adhesive transfer
2.2 IEC Standard:
when tape is unwound from the roll.
Publication 60454–3 Specifications for Pressure-Sensitive
5.3 Both transparent and colored tapes are available.
Adhesive Tapes for Electrical Purposes. Sheet 2: Require-
5.3.1 Type 1—Transparent.
ments for Polyester Film Tapes (PETP) with Thermoset-
5.3.2 Types 2, 3, and 4—Transparent and colors.
ting Adhesive. Sheet 3: Requirements for Polyester Film
3
Tapes (PETP) with Non-Thermosetting Adhesive
6. Standard Rolls
3. Terminology 6.1 The standard widths and lengths shall be selected from
the following:
3.1 Definitions— For definitions of terms used in this
6.1.1 Widths:
specification, refer to Terminology D1711.
mm in. mm in.
1 7
6 ⁄4 22 ⁄8
3
9 ⁄8 25 1
1
This specification is under the jurisdiction of ASTM Committee D09 on 1 1
12 ⁄2 30 1 ⁄4
Electrical and Electronic Insulating Materials and is the direct responsibility of 5 1
15 ⁄8 38 1 ⁄2
3
Subcommittee D09.07 on Flexible and Rigid Insulating Materials.
19 ⁄4 50 2
Current edition approved Oct. 1, 2006. Published October 2006. Originally
Widths greater than 50 mm (2 in.) shall be agreed upon
approved in 1966. Last previous edition approved in 2000 as D2484 – 00. DOI:
10.1520/D2484-06.
between the purchaser and the seller.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.1.2 Lengths:
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
mft
Standards volume information, refer to the standard’s Document Summary page on
33 108
the ASTM website.
3 50 164
Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
55 180
4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D2484 – 06
TABLE 1 Requirements for all Types of Polyester Plastic
mft
Pressure-Sensitive Electrical Insulating Tapes
66 216
Requirement Unit Value ASTM Method
6.2 Non-standard widths and lengths are permissible if
Width as specified:
agreed upon between the purchaser and seller.
1 1
under 12.7 mm ( ⁄2 in.) mm (in.) 60.4 (6 ⁄64) D1000
1 1
12.7mm( ⁄2 in.), and over mm (in.) 60.8 (6 ⁄32) D1000
7. Requirements
Length as specified, min m avg (ft avg) 66 minus 1 % D1000
(216 minus 1 %)
7.1 The tape shall meet the requirements given in Tables 1
Elongation % avg 75 min D1000
and 2 for the type specified.
Penetration °C avg 200 D876
High-humidity insulation MV, median 50 000 min D1000
resistance (measure
8. Test Methods
of corrosion)
A
Strain relief (shrinkage) % max 3.5 D2305
8.1 Sel
...

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