This specification provides the limits within which the properties of electrical insulating polybutene oil for capacitors shall conform to ensure an unvarying continuity in the quality and grade of polybutene oil supplied. The oil shall conform to the prescribed physical, chemical, and electrical requirements, and shall be subject to aging test.1.1 This specification provides the limits within which the properties of electrical insulating polybutene oil for capacitors shall conform in order to ensure an unvarying continuity in the quality and grade of polybutene oil supplied.1.2 It is expected that additional laboratory or service tests of the purchaser's own choosing may be applied to polybutene oil from each source of supply before approval for use.

定价： 0元 / 折扣价： 0 元

1.1 Scope This International Standard states the requirements for both self-healing and non-self-healing continuously rated a.c. capacitors of up to and including 2.5 kvar, and not less than 0.1 μF, having a rated voltage not exceeding 1 000 V, which a

定价： 910元 / 折扣价： 774 元

Introduction Blank detail specification A blank detail specification is a supplementary document to the Sectional Specification and contains requirements for style, layout and minimum content of detail specifications. Detail specifications not compl

定价： 546元 / 折扣价： 465 元

1.1 Scope This standard applies to fixed capacitors and resistor-capacitor combinations for electromagnetic interference suppression (formerly called radio interference suppression) for use within, or associated with, electronic or electrical apparatu

定价： 1684元 / 折扣价： 1432 元

This PDF contains the first set of amendments to CAN/CSA-E384-14-95 (R1999)

定价： 228元 / 折扣价： 194 元

定价： 481元 / 折扣价： 409 元 加购物车

4.1 The properties included in this specification are those required to identify the types of natural block mica and mica films (cut and uncut) suitable for use in the manufacture of fixed mica-dielectric capacitors. It is possible that other requirements will be necessary to identify particular characteristics. These will be added to the specification as their inclusion becomes generally desirable, and the necessary test data and methods become available. It is possible that natural block mica and mica films that do not conform to the requirements of this specification for capacitor use are capable of meeting the requirements for other critical electrical insulation purposes.4.2 The system of classifying electrical quality of natural block and mica films (cut and uncut) covered by this specification is based on a combination of electrical and physical properties, and visual qualities specified herein, which the mica must possess. This system differs radically from past practices and previous concepts of mica quality for capacitor use. The electrical classification system does not discriminate against the presence of spots and stains in even first quality electrically selected mica, provided the mica conforms to specific and physical requirements. Appreciable amounts of air inclusions and waviness also are permitted in all electrical quality classes, provided the mica meets specific electrical and physical requirements. Mica meeting these requirements is acceptable without regard to color or origin. However, mica meeting these electrical and physical requirements but having lower visual quality than that meeting the requirements for the visual quality classification is not considered generally as desirable.4.3 In capacitor fabrication, one or more pieces of cut film or block mica having lower than required electrical and physical properties will possibly prevent meeting the end requirements of the capacitor. It is therefore required that each piece of block (cut) or film (cut or uncut), or both, be tested for the electrical requirements and inspected for the visual requirements listed in this specification.AbstractThis specification covers the electrical, visual, and physical properties of natural blocks and films made from mica that are suitable for use in fixed mica-dielectric capacitors. The materials under this specification are of three forms and four classes. Samples should be taken and tested according to the test methods prescribed here. All samples should adhere to the specified values of conducting path, Q value, dielectric constant, weight loss on heating, thickness uniformity, temperature coefficient of capacitance and retrace, and amount of air inclusions, waves, cracks, tears, pin holes, stones, buckles, and ridges.1.1 This specification covers natural block mica2 and mica films (cut and uncut) suitable for use in the manufacture of fixed mica-dielectric capacitors, based on electrical, visual, and physical properties as determined by tests specified herein.1.2 The values stated in inch-pound units are to be regarded as standard.1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 590元 / 折扣价： 502 元 加购物车

1. Scope This standard is applicable to fixed capacitors for use in electronic equipment. It establishes standard terms, inspection procedures and methods of test for use in sectional and detail specifications for Qualification Approval and for Qual

定价： 1320元 / 折扣价： 1122 元

Certain synthetic dielectric fluids are used in the manufacture of capacitors because of their chemical, thermal, and electrical properties as well as their environmental acceptability.Properties of a synthetic dielectric fluid differ from those of petroleum based fluids. Design considerations and quality control are influenced by these properties as measured by the appropriate tests.Each test method has its own brief statement describing its significance.1.1 These test methods cover testing synthetic dielectric fluids currently in use for capacitors. The methods are generally suitable for specification acceptance, factory control, referee testing, and research. Their applicability to future fluids has not been determined.1.2 The scope of some of the test methods listed here apply to petroleum oils, but have been found suitable for synthetic fluids.1.3 For methods relating to polybutene fluids refer to Specification D 2296.1.4 For methods relating to silicone fluids refer to Test Methods D 2225.1.5 A list of properties and standards are as follows:This standard does not purport to address all of the safety problems, 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.

定价： 0元 / 折扣价： 0 元

1.1 Scope This part of IEC 60384 is a generic specification and is applicable to fixed capacitors for use in electronic equipment. It establishes standard terms, inspection procedures and methods of test for use in sectional and detail specifications

定价： 1456元 / 折扣价： 1238 元

1. Scope 1.1 This Standard appl ies to indoor or outdoor, open or enclosed shunt power capacitors and assemblies of shunt power capacitors with associated intercon?nections and supporting structures, for power factor improvement and other applications on

定价： 455元 / 折扣价： 387 元

1 Scope and object This part of IEC 60871 is applicable to both capacitor units and capacitor banks intended to be used, particularly, for power-factor correction of a.c. power systems having a rated voltage above 1 000 V and frequencies of 15 Hz to 60

定价： 1274元 / 折扣价： 1083 元

This specification covers nine thicknesses of annealed aluminum foil for use in manufacture of capacitors and includes UNS alloy designations A91145 and A91235. Foil to be used as anodes in electrolytic capacitors is beyond the scope of this specification. Requirements for quality assurance, chemical analysis, and tensile breaking load test are detailed. The foil shall conform to the chemical composition requirements prescribed for aluminum, silicon and iron, copper, manganese, magnesium, zinc, vanadium, and titanium, and shall meet the specified requirements for tensile breaking load, direct current electrical resistance, and area per unit weight. The foil shall be supplied with the finish bright on one side and matte on the other, in the dry or slick condition (dry annealed A, dry annealed B, dry annealed C, or slick annealed) and shall be tested for surface condition by water or water-alcohol test. Spooling requirements such as roll dimensions, roll winding, and roll covering are given. Foil splices shall be either welded or knurled and shall be free of splits, slivers, wrinkles, ragged edges, or excessive pinholes.1.1 This specification covers nine thicknesses (0.00017 to 0.00050 in. (0.0043 to 0.0127 mm)) of annealed aluminum foil used in the manufacture of capacitors.1.2 Foil to be used as anodes in electrolytic capacitors is beyond the scope of this specification.1.3 Alloy designations are in accordance with ANSI H35.11/H35.1(M). The equivalent Unified Numbering System alloy designations are those of Table 1 preceded by A9, for example, A91145 for Aluminum 1145 in accordance with Practice E527.1.4 For acceptance criteria for inclusion of new aluminum and aluminum alloys in this specification, see Annex A1.1.5 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 590元 / 折扣价： 502 元 加购物车

1.1 Scope and object This technical specification applies to capacitors according to IEC 60871-1 and gives the requirements for overvoltage cycling and ageing tests of these capacitors. Ce format PDF permet de faire de la recherche 1.1 Domaine d.a

定价： 546元 / 折扣价： 465 元

This specification covers two types and three grades of thin biaxially oriented polymeric resin film composed of polyethylene terephthalate (PET, Class A) or polypropylene (PP, Class B) for use in capacitors for electrical equipment. Type I has smooth surfaces, while Type II has at least one rough surface. Each of these types is further subdivided into the following grades: Grade 1, not pre-treated; Grade 2, one side pre-treated to facilitate the vacuum deposition of metal; and Grade 3, both side pre-treated. The physical, mechanical, and electrical requirements for which the polymer films shall be tested on for conformance are as follows: tensile strength and modulus, and break elongation; insulation resistance and conducting paths; permittivity, dissipation factor, and dielectric breakdown voltage; nominal thickness and width; density; melting point; shrinkage; tear and impact strength, and fold endurance; color or clarity; moisture absorption and permeability; oxygen index and permeability; resistance to corrosive agents; heat or solvent resistance, and hygroscopic coefficient of expansion; aqueous extract conductivity; and acidity. Thicknesses of the capacitor films shall be carried out by either the roll weight, ten-sheet stack, or gravimetric methods.1.1 This specification covers thin biaxially oriented polymeric resin film for use in capacitors for electrical equipment. The material is biaxially oriented to improve the tensile properties in the machine (MD) and transverse (TD) directions.1.2 The values stated in SI units are the standard. The values in parentheses are for information only.NOTE 1: This standard resembles IEC 60674–3–2, Specification for plastic films for electrical use, in title only. The content is significantly different.1.3 The following safety hazards caveat pertains only to the test methods section of this specification. 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 warning statements see 9.3 and Table 1 footnote B.

定价： 0元 / 折扣价： 0 元