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Standard Test Methods for Laminated Round Rods Used for Electrical Insulation (Withdrawn 2020)
Automaticky preložený názov:
Štandardné skúšobné metódy pre vrstvené guľatiny pre elektrické izolácie
NORMA vydaná dňa 1.11.2013
Označenie normy: ASTM D349-13
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.11.2013
Kód tovaru: NS-23817
Počet strán: 6
Približná hmotnosť: 18 g (0.04 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
compressive strength, dielectric strength, flexural strength, rigid rods, tensile strength, thermosetting laminate, vulcanized fibre, water absorption, ICS Number Code 29.035.99 (Other insulating materials)
Significance and Use | |||||||||||||||||||||
7.1 This test method is designed to provide data for the control and specification of materials and for characterization purposes in research and development of new materials. It is possible that the tensile properties will vary with the size of specimens and the speed of testing. Consequently, these factors along with others noted herein must be controlled where precise comparative results are desired. |
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1. Scope | |||||||||||||||||||||
1.1 These test methods cover the procedures for testing rigid round rods used in electrical insulation. These round rods 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 round rods include vulcanized fiber and thermosetting laminates as well as round rods made from cast, molded, or extruded natural or synthetic resins, with or without fillers or reinforcing materials. 1.2 The procedures appear in the following sections:
1.3 The values stated in inch-pound units are to be regarded as the standard. 1.4 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.
Standard Test Methods for Density and
Specific Gravity (Relative Density) of Plastics by Displacement Standard Test Method for Water Absorption
of Plastics Standard Test Method for Dielectric
Breakdown Voltage and Dielectric Strength of Solid Electrical
Insulating Materials at Commercial Power Frequencies Standard Practice for Conditioning
Electrical Insulating Materials for Testing Standard Terminology Relating to
Electrical Insulation Standard Test Methods of Measuring
Dimensions of Rigid Rods and Tubes Used for Electrical Insulation
(Withdrawn 2020) |
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