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ASTM F1837M-97(2007)

(Specification)

Standard Specification for Heat-Shrink Cable Entry Seals (Metric)

Standard Specification for Heat-Shrink Cable Entry Seals (Metric)

ABSTRACT
This specification covers the general requirements for heat-shrink cable entry seals. Cable entry seals are intended for making electrical cable penetrations into connection boxes, bulkheads, or other enclosures. Heat-shrink cable entry seals shall be of the following types: Type I (Types I-1, I-2, I-3, I-4, I-5, and I-6); Type II (Types II-1, II-2, II-3, and II-4); Type III; and Type IV. The rigid plastic parts shall be made from polyamide (nylon), or polyester material, or both. The following tests shall be performed: conformance testing; mechanical abuse test; and level of effectiveness.
SCOPE
1.1 This specification covers the general requirements for heat-shrink cable entry seals. Cable entry seals are intended for making electrical cable penetrations into connection boxes, bulkheads, or other enclosures. These devices are suitable for both thin wall enclosures up to 5 mm (3/16 in.) thick and thick-wall enclosures of 5 mm to 19 mm (3/16 in. to 3/4 in.) thick.
1.2 Cable entry seals shall have factory-applied adhesive that provides the seal to wire and cable jackets.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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 its use.

General Information

Status
Historical
Publication Date
30-Apr-2007
ICS
29.035.20 - Plastics and rubber insulating materials
Technical Committee
F25 - Ships and Marine Technology
Drafting Committee
F25.10 - Electrical
Current Stage
Ref Project

Relations

Replaces
ASTM F1837M-97(2002) - Standard Specification for Heat-Shrink Cable Entry Seals (Metric)
Effective Date
01-May-2007
Replaced By
ASTM F1837M-97(2012)e1 - Standard Specification for Heat-Shrink Cable Entry Seals (Metric)
Effective Date
01-Oct-2012

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ASTM F1837M-97(2007) - Standard Specification for Heat-Shrink Cable Entry Seals (Metric)ASTM F1837M-97(2007) - Standard Specification for Heat-Shrink Cable Entry Seals (Metric)
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ASTM F1837M-97(2007) - Standard Specification for Heat-Shrink Cable Entry Seals (Metric)
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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
Designation:F1837M −97(Reapproved 2007) An American National Standard
Standard Specification for
1
Heat-Shrink Cable Entry Seals (Metric)
This standard is issued under the fixed designation F1837M; 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 tive Density) of Plastics by Displacement
D2240 Test Method for Rubber Property—Durometer Hard-
1.1 This specification covers the general requirements for
ness
heat-shrink cable entry seals. Cable entry seals are intended for
D2671 Test Methods for Heat-Shrinkable Tubing for Elec-
making electrical cable penetrations into connection boxes,
trical Use
bulkheads, or other enclosures. These devices are suitable for
D2863 Test Method for Measuring the Minimum Oxygen
3
both thin wall enclosures up to 5 mm ( ⁄16 in.) thick and
Concentration to Support Candle-Like Combustion of
3 3
thick-wallenclosuresof5mmto19mm( ⁄16in.to ⁄4in.)thick.
Plastics (Oxygen Index)
1.2 Cable entry seals shall have factory-applied adhesive
D3149 Specification for Crosslinked Polyolefin Heat-
that provides the seal to wire and cable jackets.
Shrinkable Tubing for Electrical Insulation
1.3 The values stated in SI units are to be regarded as the D4572 Test Method for Rubber Chemicals—Wet Sieve
Analysis of Sulfur
standard. The values given in parentheses are for information
only. D4732 Specification for Cool-Application Filling Com-
pounds for Telecommunications Wire and Cable
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 2.2 ASME Standard
ASME B1.1 Unified Inch Screw Threads (UN and UNR
responsibility of the user of this standard to establish appro-
3
priate safety and health practices and determine the applica- Thread Form)
4
bility of regulatory limitations prior to its use.
2.3 NEMA Standards:
NEMA250 Enclosures for Electrical Equipment (1000Volts
2. Referenced Documents
Max)
2
2.1 ASTM Standards:
2.4 IEC Standard:
D149 Test Method for Dielectric Breakdown Voltage and
IEC 68-2-6 Environmental Testing–Part 2: Tests–Test FC:
5
DielectricStrengthofSolidElectricalInsulatingMaterials
Vibration (Sinusoidal) Sixth Edition
at Commercial Power Frequencies
D257 Test Methods for DC Resistance or Conductance of
3. Terminology
Insulating Materials
3.1 Definitions of Terms Specific to This Standard:
D412 Test Methods forVulcanized Rubber andThermoplas-
3.1.1 heat-shrink cable entry seal, n—heat-shrinkable tube
tic Elastomers—Tension
making a watertight, fume-tight seal where cable connections
D570 Test Method for Water Absorption of Plastics
boxes, bulkheads, or other enclosures.
D635 Test Method for Rate of Burning and/or Extent and
3.1.2 polyolefin, n—a polymer made by the polymerization
Time of Burning of Plastics in a Horizontal Position
of hydrocarbon olefins or copolymerization olefins.
D747 Test Method for Apparent Bending Modulus of Plas-
tics by Means of a Cantilever Beam
4. Classification
D792 Test Methods for Density and Specific Gravity (Rela-
4.1 Heat-shrink cable entry seals shall be of the following
types:
1
This specification is under the jurisdiction of ASTM Committee F25 on Ships
and Marine Technologyand is the direct responsibility of Subcommittee F25.10 on
Electrical.
3
Current edition approved May 1, 2007. Published June 2007. Originally Available from American Society of Mechanical Engineers (ASME), ASME
approved in 1997. Last previous edition approved in 2002 as F1837M - 97(2002). International Headquarters, Three Park Ave., New York, NY 10016-5990, http://
DOI: 10.1520/F1837M-97R07. www.asme.org.
2 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from National Electrical Manufacturers Association (NEMA), 1300
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM N. 17th St., Suite 1752, Rosslyn, VA 22209, http://www.nema.org.
5
Standards volume information, refer to the standard’s Document Summary page on Available from International Electrotechnical Commission (IEC), 3, rue de
the ASTM website. Varembe, Case Postale 131, CH-1211, Geneva 20, Switzerland.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F1837M−97 (2007)
4.1.1 Type 1, standard cable entry seals for thin-wall enclo- 6.2 The heat-shrinkable tubing shall be of a crosslinked
sures shall consist of the three part assembly; a rigid plastic polyolefin in accordance with Type III of Specification D3149.
nut, O-ring, and heat-shrinkable molded area.
6.3 The adhesive shall be gene
...

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ABSTRACT
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SCOPE
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1.1 This specification covers semirigid, flame-retardant, crosslinked poly(vinylidene fluoride) heat-shrinkable tubing for electrical insulation purposes. It is supplied in an expanded form and will shrink to its extruded diameter when heated.
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SCOPE
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This specification covers three grades of nonrigid tubing of vinyl chloride polymer or its copolymers with other materials for use in electrical insulation. Clear transparent, black, white, yellow, green, blue, and red shall be considered standard colors. Colors other than these shall be considered special. Dimensional requirements to which tubing shall adhere are inside diameter, wall thickness, and commercial lengths. The tubing shall also conform to physical and electrical requirements, as follows: flammability; tensile strength; effect of elevated temperatures; ultimate elongation after immersion in oil; brittleness temperature; penetration resistance; volume resistivity; dielectric breakdown at high humidity; strain relief; and corrosive effect.
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This specification covers the acceptance testing of insulating rubber matting that are used as a floor covering for the personal protection of workers. The sheeting shall be made from any elastomer or combination of elastomeric compounds. Two types of matting, differing in chemical and physical characteristics, are provided and are designated as Type I, which has been properly vulcanized, and Type II, which has one or more of the following special properties: (A) ozone resistance; (B) flame resistance; and (C) oil resistance. Five classes of matting, designated as Classes 0, 1, 2, 3, and 4, are assigned according to electrical protection characteristics. When evaluated in accordance with the test procedures detailed herein, the matting shall adhere to the following property requirements: electrical properties such as phase-phase maximum use voltage, AC and DC proof-test voltages, AC and DC dielectric breakdown test voltages, and AC and DC electrode clearances; an physical and chemical properties such as moisture absorption, oil resistance, tensile strength, tension set, elongation, resistance to accelerated heat aging, and flame resistance.
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1.1 This specification covers acceptance testing of rubber insulating matting for use as a floor covering for protection of workers.  
1.2 Two types of matting, differing in chemical and physical characteristics, are provided and are designated as Type I and Type II matting.  
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Note 1: Rubber insulating matting should remain flexible for use through normal temperature ranges.
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SIGNIFICANCE AND USE
5.1 This test method is particularly suitable for quality control in the application of insulating coatings.  
5.2 Surface insulation resistivity is evaluated from a dc current that can range from 0 (perfect insulator) to 1 A (perfect conductor).  
5.3 Single readings should not be considered significant since the nature of the test device and specimen are such that successive measurements of a specimen often yield different values.
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1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
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.  
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Standard Test Methods for Bondable Silicone Rubber Tapes Used for Electrical Insulation

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5.1 Self-adhesion is a primary initial property since it affects layer-to-layer bonding. The integrity of the bond can significantly affect the electrical and physical performance of the insulation system. Therefore, the degree of self-adhesion is directly related to apparatus performance.  
5.2 A high degree of self-adhesion is desirable for most electrical applications. In this test, a short unwinding length indicates a high degree of self-adhesion.  
5.3 This test method has been found useful as a quality control test for lot acceptance.
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1.1 These test methods cover tests for bondable silicone rubber tapes which form a sealed structure either with the application of heat (and pressure if needed) or by the process of auto-adhesion (self-fusing).  
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Width  
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Standard Specification for Rubber Insulating Blankets

ABSTRACT
This specification covers the acceptance testing of insulating rubber blankets that are used for the personal protection of workers from accidental contact with live electrical conductors, apparatus, or circuits. Two types of blankets, differing in chemical and physical characteristics, are provided and are designated as: Type I, made from properly vulcanized high-grade cis-1,4-polyisoprene rubber compound of natural or synthetic origin that is non-resistant to ozone; and Type II, made of any elastomer or combination of elastomeric compounds that is resistant to ozone. Five classes of blankets, designated as Classes 0, 1, 2, 3, and 4, are assigned according to electrical protection characteristics. Styles of blankets are designated in accordance to construction characteristics, namely: Style A, blankets free of any reinforcements; and Style B, blankets incorporated with reinforcement(s). When evaluated in accordance with the test procedures detailed herein, the blankets shall adhere to the following property requirements: electrical properties such as phase-phase maximum use voltage, AC and DC proof-test voltages, AC and DC dielectric breakdown test voltages, and AC and DC clearances; and physical and chemical properties such as ozone resistance, moisture absorption, tensile strength, tension set, elongation, drape stiffness, flex stiffness, tear resistance, resistance to accelerated heat aging, and puncture resistance.
SCOPE
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1.3 Five classes of blankets, differing in electrical characteristics, are provided and are designated as Class 0, Class 1, Class 2, Class 3, and Class 4.  
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  • Technical specification
    8 pages
    English language
    sale 15% off
  • Technical specification
    8 pages
    English language
    sale 15% off