Standard Specification for Crosslinked Polyolefin Heat-Shrinkable Tubing for Electrical Insulation

ABSTRACT
This specification covers flexible and semirigid crosslinked polyolefin heat-shrinkable tubing used for electrical insulating purposes. It is in its expanded form and will shrink to its extruded diameter when heated. The tubing has been classified into four types according to flame retardancy, flexibility, opaqueness, and secant modulus: Type I, Type II, Type III, and Type IV. The compound used in the manufacture of heat-shrinkable tubing shall be modified polyolefin resin, and the finished compound shall be free of all foreign matter other than intended formulation additives as appropriate. The tubing shall be extruded, cross-linked, and then expanded to the required dimensions. The following chemical properties of the material shall be determined: corrosion, fluid resistance, flammability, and water absorption. Physical properties of tubing like restricted shrinkage, dielectric strength, heat shock, low-temperature flexibility, tensile strength, elongation, heat resistance, color, color stability, specific gravity, volume resistivity, secant modulus, copper contact corrosion, and copper stability shall be determined.
SCOPE
DESIG: D3149 06 ^TITLE: Standard Specification for Crosslinked Polyolefin Heat-Shrinkable Tubing for Electrical Insulation ^SCOPE:1. Scope
1.1 This specification covers flexible and semirigid crosslinked polyolefin heat-shrinkable tubing used for electrical insulating purposes. It is supplied in an expanded form and will shrink to its extruded diameter when heated.Note 1
This standard is similar to but not identical to IEC 60684-3-209, -211 and -212.
1.2 The values stated in inch-pound units are to be regarded as the standard except temperature, which shall be stated in degrees Celsius. Values in parentheses are for information only.

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31-Mar-2006
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ASTM D3149-06 - Standard Specification for Crosslinked Polyolefin Heat-Shrinkable Tubing for Electrical Insulation
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
Designation:D3149 −06 AnAmerican National Standard
Standard Specification for
Crosslinked Polyolefin Heat-Shrinkable Tubing for Electrical
1
Insulation
This standard is issued under the fixed designation D3149; 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* 2.3 Federal Standards:
SS-S-550 Sodium Chloride, Technical, for Water-Softening
1.1 This specification covers flexible and semirigid cross-
4
Units
linked polyolefin heat-shrinkable tubing used for electrical
insulatingpurposes.Itissuppliedinanexpandedformandwill 2.4 IEC Standards:
shrink to its extruded diameter when heated. 60684–3–209 Flexibleinsulatingsleeving,Part3,Sheet209:
Heat-shrinkable sleeving, general purpose, flame retarded
NOTE 1—This standard is similar to but not identical to IEC
5
polyolefin, shrink ratio 2:1
60684–3–209, –211 and –212.
60684–3–211 Flexibleinsulatingsleeving,Part3,Sheet211:
1.2 The values stated in inch-pound units are to be regarded
Heat-shrinkable sleeving, general purpose, semi-rigid
as the standard except temperature, which shall be stated in
5
polyolefin, shrink ratio 2:1
degreesCelsius.Valuesinparenthesesareforinformationonly.
60684–3–212 Flexibleinsulatingsleeving,Part3,Sheet212:
Heat-shrinkable polyolefin sleeving, general purpose,
2. Referenced Documents
5
flame retarded, shrink ratio 2:1
2
2.1 ASTM Standards:
D910 Specification for Aviation Gasolines
3. Terminology
D1711 Terminology Relating to Electrical Insulation
3.1 Definitions:
D2671 Test Methods for Heat-Shrinkable Tubing for Elec-
3.1.1 For definitions pertaining to electrical insulation, refer
trical Use
to Terminology D1711.
D3636 Practice for Sampling and Judging Quality of Solid
Electrical Insulating Materials 3.1.2 For definitions pertaining to fire standards, refer to
E176 Terminology of Fire Standards
Terminology E176.
3
2.2 Military Standards:
4. Classification
MIL-STD-104 Limits for Electrical Insulation Color
MIL-H-5606 Hydraulic Fluid, Petroleum Base, Aircraft,
4.1 Type I—Flexible, flame-retardant, opaque polyolefin
Missile, and Ordnance
tubing with a secant modulus at 2 % strain less than 25 000 psi
MIL-T-5624 Turbine Fuel, Aviation, Grades JP4 and JP5
(172 MPa).
MIL-L-7808 Lubricating Oil,Aircraft,Turbine Engine, Syn-
4.2 Type II—Flexible, non-flame-retardant, clear or opaque
thetic Base
polyolefin tubing with a secant modulus at 2 % strain less than
MIL-L-23699 Lubricating Oil, Aircraft, Turbine Engines,
25 000 psi (172 MPa).
Synthetic Base
MIL-A-8243 Anti-Icing and De-Icing Defrosting Fluid
4.3 Type III—Semi-rigid,flame-retardant,opaquepolyolefin
tubing with a secant modulus at 2 % strain greater than 25 000
psi (172 MPa).
1
This specification is under the jurisdiction of ASTM Committee D09 on
Electrical and Electronic Insulating Materials and is the direct responsibility of
4.4 Type IV—Semi-rigid, non-flame-retardant, clear or
Subcommittee D09.07 on Flexible and Rigid Insulating Materials.
opaque polyolefin tubing with a secant modulus at 2 % strain
Current edition approved April 1, 2006. Published April 2006. Originally
greater than 25 000 psi (172 MPa).
approved in 1972. Last previous edition approved in 2000 as D3149 – 00. DOI:
10.1520/D3149-06.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
4
Standards volume information, refer to the standard’s Document Summary page on May be obtained from Superintendent of Documents, U.S. Government
the ASTM website. Printing Office, Washington, DC 20402.
3 5
AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700 Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS. 4th Floor, New York, NY 10036.
*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

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D3149−06
5. Ordering Information exceeds that of the identical or next largest nominal size. The
wall for sizes greater than 4 in. shall be at least as thick as that
5.1 When tubing is ordered to this specification, the pur-
of the 4-in. size.
chaser should define the type, size, and color of the required
tubing.
10. Workmanship
10.1 The tubing shall be homogeneous and essentially free
6. Materials and Manufacture
of flaws, defects, pinholes, bubbles, seams, cracks, or inclu-
6.1 The compound used in the manufacture of heat-
sions.
shrinkable tubing shall be modified polyolefin resin, and the
...

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