ASTM-D348 2013

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D348-13 Standard Test Methods for Rigid Tubes Used for Electrical Insulation

Published By	Publication Date	Number of Pages
ASTM	2013	6

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Categories: 29.120.10 - Conduits for electrical purposes, ASTM

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Description

ASTM D348-13

Withdrawn Standard: Standard Test Methods for Rigid Tubes Used for Electrical Insulation (Withdrawn 2020)

ASTM D348

Scope

1.1 These test methods cover the testing of rigid tubes used in electrical insulation. These tubes include many types made from fibrous sheets of basic materials, such as cellulose, glass, or nylon, in the form of paper, woven fabrics, or mats, bonded together by natural or synthetic resins or by adhesives. Such tubes include vulcanized fiber and thermosetting laminates, as well as tubes made from cast, molded, or extruded natural or synthetic resins, with or without fillers or reinforcing materials.

1.2 Tubes tested by these test methods are most commonly circular in cross section; however, noncircular shapes are also in commercial use. To the extent that the individual methods are compatible with a particular noncircular shape, these test methods are applicable to these other shapes. For tests on noncircular tubes, appropriate comments shall be included in the test report, including details of orientation of test specimens with respect to the cross section of the tube.

1.3 The procedures appear in the following sections:

1.4 The values stated in inch-pound units are to be regarded as the standard. SI units in parentheses are for information only.

1.5 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 a specific hazard statement, see 27.1.1.

Keywords

compressive strength; density; dielectric strength; dissipation factor; permittivity; rigid tubes; tensile strength; thermosetting laminate; vulcanized fibre; water absorption

ICS Code

ICS Number Code 29.120.10 (Conduits for electrical purposes)

DOI: 10.1520/D0348-13

Additional information

Conditioning.	4
Tensile Strength	6 to 11
Dimensional Measurements	5
Dielectric Strength	25 to 32
Procedure	Sections
Compressive Strength (Axial and Diametral)	12 to 17
Dissipation Factor and Permittivity	33 to 35
Water Absorption	18 to 19
Density	20 to 24
ICS Codes	29.120.10 - Conduits for electrical purposes