ASTM D350 - 13 Standard Test Methods for Flexible Treated Sleeving Used for Electrical Insulation

ASTM D350 - 13

Standard Test Methods for Flexible Treated Sleeving Used for Electrical Insulation

Active Standard ASTM D350 | Developed by Subcommittee: D09.07

Book of Standards Volume: 10.01

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Significance and Use

12.1 The dielectric breakdown voltage of the sleeving is of importance as a measure of its ability to withstand electrical stress without failure. This value does not correspond to the dielectric breakdown voltage expected in service, but is of value in comparing different materials or different lots, in controlling manufacturing processes or, when coupled with experience, for a limited degree of design work. The comparison of dielectric breakdown voltage of the same sleeving before and after environmental conditioning (moisture, heat, and the like) gives a measure of its ability to resist these effects. For a more detailed discussion, refer to Test Method D149.

1. Scope

1.1 These test methods cover procedures for testing electrical insulating sleeving comprising a flexible tubular product made from a woven textile fibre base, such as cotton, rayon, nylon, or glass, thereafter impregnated, or coated, or impregnated and coated, with a suitable dielectric material.

1.2 The procedures appear in the following sections:

Procedures	Sections

Brittleness Temperature	18 to 21
Compatibility of Sleeving with Magnet Wire Insulation	45 to 59
Conditioning	6
Dielectric Breakdown Voltage	12 to 17
Dielectric Breakdown Voltage After Short-Time Aging	29 to 33
Dimensions	7 to 11
Effect of Push-Back After Heat Aging	73 to 78
Flammability	22 to 28
Hydrolytic Stability	66 to 72
Oil Resistance	34 to 37
Selection of Test Material	5
Solvent Resistance	60 to 65
Thermal Endurance	38 to 44

1.3 The values stated in inch-pound units, except for °C, are to be regarded as the standard. The values in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.4 This is a fire-test-response standard. See Sections 22 through 28, which are the procedures for flammability tests.

1.5 This standard measures and describes the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products or assemblies under actual fire conditions.

1.6 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 specific hazard statements, see 45.2 and 63.1.1.

Note 1—This standard resembles IEC 60684-2, Specification for Flexible Insulating Sleeving—Part 2 Methods of Test, in a number of ways, but is not consistently similar throughout. The data obtained using either standard are not necessarily technically equivalent.

1.7 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D149 Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Commercial Power Frequencies

D374 Test Methods for Thickness of Solid Electrical Insulation

D471 Test Method for Rubber Property--Effect of Liquids

D746 Test Method for Brittleness Temperature of Plastics and Elastomers by Impact

D876 Test Methods for Nonrigid Vinyl Chloride Polymer Tubing Used for Electrical Insulation

D1711 Terminology Relating to Electrical Insulation

D2307 Test Method for Thermal Endurance of Film-Insulated Round Magnet Wire

D3487 Specification for Mineral Insulating Oil Used in Electrical Apparatus

D3636 Practice for Sampling and Judging Quality of Solid Electrical Insulating Materials

D5423 Specification for Forced-Convection Laboratory Ovens for Evaluation of Electrical Insulation

D6054 Practice for Conditioning Electrical Insulating Materials for Testing

E145 Specification for Gravity-Convection and Forced-Ventilation Ovens

E176 Terminology of Fire Standards

IEEE Standard

IEEE 101 Guide for the Statistical Analysis of Thermal Life Test Data Available from Institute of Electrical and Electronics Engineers, Inc. (IEEE), 445 Hoes Ln., P.O. Box 1331, Piscataway, NJ 08854-1331, http://www.ieee.org.

IEC Standard

IEC 60684-2 Specification for Flexible Insulating Sleeving--Part 2 Methods of Test Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.

ICS Code

ICS Number Code 29.035.20 (Plastic and rubber insulating materials)

UNSPSC Code

UNSPSC Code 39121404(Electrical sleeves)

Referencing This Standard

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DOI: 10.1520/D0350

Citation Format

ASTM D350-13, Standard Test Methods for Flexible Treated Sleeving Used for Electrical Insulation, ASTM International, West Conshohocken, PA, 2013, www.astm.org