K15 电工绝缘材料及其制品 标准查询与下载



共找到 3986 条与 电工绝缘材料及其制品 相关的标准,共 266

Laminated cardboard for electrical applications Part 2: Test methods

ICS
29.035.99
CCS
K15
发布
2017-04-12
实施
2018-01-01

本标准规定了防伪镭射纸用复合膜生产技术要求的术语和定义、产品分类、技术要求、试验方法、检验规则、标识、包装、运输和贮存。 本标准适用于以BOPP或BOPET薄膜为基材,经涂布、模压、镀铝、分切等工序制成的防伪镭射纸用复合膜的生产技术要求。

Technical requirements for the production of composite film for anti-counterfeiting laser paper

ICS
83.140.10
CCS
K15
发布
2017-03-10
实施
2017-06-10

Evaluation and qualification of electrical insulation systems; Corrigendum 1

ICS
29.080.30
CCS
K15
发布
2017-03
实施
2017-03-16

Bushings above 1 kV up to 52 kV and from 250 A to 3,15 kA for liquid filled transformers - Part 1: General requirements for bushings; German version EN 50180-1:2015

ICS
29.080.20
CCS
K15
发布
2017-02
实施

Bushings above 1 kV up to 52 kV and from 250 A to 3,15 kA for liquid filled transformers - Part 2: Requirement for bushing components; German version EN 50180-2:2015

ICS
29.080.20
CCS
K15
发布
2017-02
实施

Bushings above 1 kV up to 52 kV and from 250 A to 3,15 kA for liquid filled transformers - Part 3: Requirements for bushing fixations; German version EN 50180-3:2015

ICS
29.080.20
CCS
K15
发布
2017-02
实施

This part of IEC 61857 establishes an EIS evaluation for applications with a designed life of 5000 h or less. This test method follows the procedures of IEC 60505 and is modified based on the range of designed life.

Electrical insulation systems - Procedures for thermal evaluation - Part 31: Applications with a designed life of 5000 h or less

ICS
29.080.30
CCS
K15
发布
2017-01
实施
2017-01-26

4.1 Color is significant chiefly as an indicator of contamination in electrical insulating liquids. Frequently this contamination is the result of solvent action in the apparatus involved or it may indicate possible contamination. No definite relationship can be established between color and the physical and electrical characteristics of the liquid; for that reason color in itself has limited value as a measure of condition. For more precise determination of color, Test Method D1209 may be used. 1.1 This standard describes a test method for the visual determination of the color of clear insulating liquids. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Color of Clear Electrical Insulating Liquids (Platinum-Cobalt Scale)

ICS
17.180.20
CCS
K15
发布
2017
实施

8.1 In the buyer-seller relationship it is necessary that an understanding exists as to the expected nominal characteristics of the product, and the magnitude of permissible departure from the nominal values. Also, it is necessary that an agreement be reached as to how many units of a lot can fall outside of the specification limits without rejection of the lot. It is this latter subject that is addressed by this test method. 1.1 These test methods cover procedures for sampling and testing untreated paper to be used as an electrical insulator or as a constituent of a composite material used for electrical insulating purposes. 1.1.1 Untreated papers are thin, fibrous sheets normally laid down from a water suspension of pulped fibers (usually cellulosic) with or without various amounts of nonfibrous ingredients, and which are calendared, if required, to obtain desired thickness and density. Nevertheless, these test methods are applicable, generally although not invariably, to papers formed by other means, to papers modified (during or after formation) by additions, and to papers given subsequent mechanical treatments such as creping. 1.1.2 As an electrical insulating and dielectric material, paper is considered “untreated” until it is subjected to a manufacturing process such as drying, impregnation, or varnish treatment. 1.1.3 The test methods given herein were developed specifically for papers having a thickness of 0.758201;mm (0.030 in.) or less. A number of these test methods are also suitable for use on other materials such as pulps or boards. Refer to Test Methods D3376 or D3394 to determine which tests are applicable to pulps or electrical insulating boards. In the paper industry, some products in thicknesses of less than 0.758201;mm are termed “paperboard”. Such products are included within the scope of these methods. 1.1.4 These test methods are applicable to flexible fibrous-mat materials formed from suspensions of fiber in fluids other than water. Thicknesses of these mats approach 28201;mm, and the fibers contained are possibly natural, synthetic, organic, or inorganic; fillers that are natural, synthetic, organic, or inorganic; and flexible polymeric binder materials. 1.2 The procedures appear in the following sections: Procedure Sections ASTM or TAPPI Reference (Modified) Absorption (Rise of Water) 78 to 83

Standard Test Methods for Sampling and Testing Untreated Paper Used for Electrical Insulation

ICS
29.035.10
CCS
K15
发布
2017
实施

5.1 Flexural properties as determined by this test method are especially useful for quality control and specification purposes. They include: 5.1.1 Flexural Stress (σf)—When a homogeneous elastic material is tested in flexure as a simple beam supported at two points and loaded at the midpoint, the maximum stress in the outer surface of the test specimen occurs at the midpoint. Flexural stress is calculated for any point on the load-deflection curve using equation (Eq 3) in Section 12 (see Notes 5 and 6). Note 5: Eq 3 applies strictly to materials for which stress is linearly proportional to strain up to the point of rupture and for which the strains are small. Since this is not always the case, a slight error will be introduced if Eq 3 is used to calculate stress for materials that are not true Hookean materials. The equation is valid for obtaining comparison data and for specification purposes, but only up to a maximum fiber strain of 5 % in the outer surface of the test specimen for specimens tested by the procedures described herein. Note 6: When testing highly orthotropic laminates, the maximum stress may not always occur in the outer surface of the test specimen.4 Laminated beam theory must be applied to determine the maximum tensile stress at failure. If Eq 3 is used to calculate stress, it will yield an apparent strength based on homogeneous beam theory. This apparent strength is highly dependent on the ply-stacking sequence of highly orthotropic laminates. 5.1.2 Flexural Stress for Beams Tested at Large Support Spans (σf)—If support span-to-depth ratios greater than 16 to 1 are used such that deflections in excess of 10 % of the support span occur, the stress in the outer surface of the specimen for a simple beam is reasonably approximated using equation (Eq 4) in 12.3 (see Note 7). Note 7: When large support span-to-depth ratios are used, significant end forces are developed at the support noses which will affect the moment in a simple supported beam. Eq 4 includes additional terms that are an approximate correction factor for the influence of these end forces in large support span-to-depth ratio beams where relatively large deflections exist. 5.1.3 Flexural Strength (σfM)—Maximum flexural stress sustained by the test specimen (see

Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials

ICS
29.035.20
CCS
K15
发布
2017
实施

1.1 This specification covers a thermoplastic insulation of poly(vinyl chloride) or the copolymer of vinyl chloride and vinyl acetate. 1.2 This insulation is recommended for use in power and control circuits at temperatures not higher than 75°C. At a thickness of 15 mils (0.38 mm), application is limited to voltage ratings below 300 V, and to dry locations. At a thickness of 30 mils, the application range is widened to dry or wet applications, and to a voltage rating of 600 V. 1.3 In many instances the insulation material cannot be tested unless it has been formed around a conductor or cable. Therefore, tests are done on insulated wire or cable in this specification solely to determine the relevant property of the insulation material and not to test the conductor or completed cable. 1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.4.1 In come cases (including the title), temperatures are described in degrees Celsius only.

Standard Specification for Poly(Vinyl Chloride) Insulation for Wire and Cable, 75&xb0;C Operation

ICS
29.035.20
CCS
K15
发布
2017
实施

5.1 This standard measures the steady state thermal impedance of electrical insulating materials used to enhance heat transfer in electrical and electronic applications. This standard is especially useful for measuring thermal transmission properties of specimens that are either too thin or have insufficient mechanical stability to allow placement of temperature sensors in the specimen as in Test Method E1225. 5.2 This standard imposes an idealized heat flow pattern and specifies an average specimen test temperature. The thermal impedances thus measured cannot be directly applied to most practical applications where these required uniform, parallel heat conduction conditions do not exist. 5.3 This standard is useful for measuring the thermal impedance of the following material types. 5.3.1 Type I—Viscous liquids that exhibit unlimited deformation when a stress is applied. These include liquid compounds such as greases, pastes, and phase change materials. These materials exhibit no evidence of elastic behavior or the tendency to return to initial shape after deflection stresses are removed. 5.3.2 Type II—Viscoelastic solids where stresses of deformation are ultimately balanced by internal material stresses thus limiting further deformation. Examples include gels, soft, and hard rubbers. These materials exhibit linear elastic properties with significant deflection relative to material thickness. 5.3.3 Type III—Elastic solids which exhibit negligible deflection. Examples include ceramics, metals, and some types of plastics. 5.4 The apparent thermal conductivity of a specimen is able to be calculated from the measured thermal impedance and measured specimen thickness if the interfacial thermal resistance is insignificantly small (nominally less than 18201;%) compared to the thermal resistance of the specimen. 5.4.1 The apparent thermal conductivity of a sample material is able to be accurately determined by excluding the interfacial thermal resistance. This is accomplished by measuring the thermal impedance of different thicknesses of the material under test and plotting thermal impedance versus thickness. The inverse of the slope of the resulting straight line is the apparent thermal conductivity. The intercept at zero thickness is the sum of the contact resistances at the two surfaces. 5.4.2 The contact resistance is able to be reduced by applying thermal grease or oil to the test surfaces of rigid test specimens (Type III). 1.1 This standard covers a test method for measurement of thermal impedance and calculation of an apparent thermal conductivity for thermally conductive electrical insulation materials ranging from liquid compounds to hard solid materials. 1.2x00a0......

Standard Test Method for Thermal Transmission Properties of Thermally Conductive Electrical Insulation Materials

ICS
29.035.01
CCS
K15
发布
2017
实施

Test procedures for thermal evaluation of dry-type transformer insulation systems Part 1: Windings above 600V

ICS
29.080
CCS
K15
发布
2016-12-05
实施
2017-05-01

Laminated pressboard for electrical purposes -- Part 1: Definitions, classification and general requirements

ICS
29.035.10
CCS
K15
发布
2016-11-21
实施

Laminated pressboard for electrical purposes -- Part 2: Methods of test

ICS
29.035.10
CCS
K15
发布
2016-11-21
实施

Non-cellulosic papers for electrical purposes -- Part 3: Specifications for individual materials -- Sheet 4: Aramid fibre paper containing not more than 50 % of mica particles

ICS
29.035.10
CCS
K15
发布
2016-11-21
实施

Guidance on the measurement of hydrophobicity of insulator surfaces (IEC/TS 62073:2016)

ICS
29.080.10
CCS
K15
发布
2016-11
实施

This part of IEC 60674 is applicable to plastic films used for electrical purposes. This part of IEC 60674 gives methods of test.

Specification for plastic films for electrical purposes - Part 2: Methods of test

ICS
17.220.99;29.035.20
CCS
K15
发布
2016-11
实施
2019-02-09

Non-flame retardant double wall polyolefin heat shrink tubing

ICS
29.035.99
CCS
K15
发布
2016-10-22
实施
2017-04-01

Flexible polyolefin heat shrinkable tube

ICS
29.035.99
CCS
K15
发布
2016-10-22
实施
2017-04-01



Copyright ©2007-2022 ANTPEDIA, All Rights Reserved
京ICP备07018254号 京公网安备1101085018 电信与信息服务业务经营许可证:京ICP证110310号