The scope of this guide is to provide manufacturers of gaskets and designers of electronic systems appropriate methods for the characterization of gaskets. This document guides the user in the selection of the appropriate test method in order to determine the level of electromagnetic shielding provided in the intended application.

定价： 84元 / 折扣价： 72 元

This document is a guide for field testing and commissioning of static var compensators (SVCs). As such, the document establishes general guidelines and criteria for field testing to verify the specified performance of SVC systems. Many clauses will be useful for compensator systems using gate turn-off (GTO) thyristor technology (static compensator [STATCOM]) or other semiconductor devices such as insulated gate commutated transistor (IGCT). This guide does not a) Cover factory and simulator… read more tests of SVC system components (but it assumes that such tests have been performed beforehand). b) Discuss the division of responsibility between user and supplier, since this division is usually defined in the contract between buyer and supplier. Most often, however, the practice is for the equipment, subsystem, and commissioning tests to be performed by the supplier, and the acceptance tests to be performed by the buyer or user. read less

定价： 132元 / 折扣价： 113 元

This recommended practice identifies specifications that should be provided to characterize instrumentation used to measure the steady state rms values of magnetic and electric fields with sinusoidal frequency content in the range 10 Hz to 3 kHz in residential and occupational settings as well as in transportation systems. The dynamic ranges of interest are 0.01 ¿¿T (0.1 mG) to 10 mT (100 G) and 1 V/m to 30 kV/m for magnetic and electric fields, respectively. In addition, this recommended… read more practice ¿¿¿ Defines terminology ¿¿¿ Describes general characteristics of fields ¿¿¿ Surveys operational principles of instrumentation ¿¿¿ Indicates methods of calibration ¿¿¿ Identifies significant sources of error While field meter specifications are identified, frequencies and field levels that should be used for calibration purposes, and limits on measurement uncertainty are not recommended in this standard. Rathere, it is left to standards that describe measurement protocols for different environments to indicate specific calibration points and uncertainty requirements. NOTE¿¿¿For example, IEEE Std 644-1994 [B15]1 limits the total uncertainty during calibrations of magnetic and electric field meters used in the vicinity of ac power lines to A?3%. However, sources of uncertainty during calibration and measurements are identified and guidance is provided on how they should be combined to determine total measurement uncertainty. Throughout this recommended practice, the words a??magnetic flux densitya?? and a??magnetic fielda?? will be considered synonymous. In regard to electric field measurements, this recommended practice considers electric field meters that only measure the unperturbed electric field strength at a point in space (i.e., the electric field prior to the introduction of the field meter) or on conducting surfaces. Measurement protocols are not provided. Protocols for measuring electric and magnetic fields near power lines and video display terminals are described in IEEE Std 644-1994 [B15] and IEEE Std 1140-1994 [B16], respectively. Protocols for measuring only power frequency electric fields are described in IEC Publication 833 1987 [B11]. read less

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This recommended practice identifies specifications that should be provided to characterize instrumentation used to measure the steady state Root mean square (rms) values of magnetic and electric fields with sinusoidal frequency content in the range 10 Hz to 3 kHz in residential and occupational settings as well as in transportation systems. The dynamic ranges of interest are 0.01 MicroT (0.1 mG) to 10 mT (100 G) and 1 V/m to 30 kV/m for magnetic and electric fields, respectively. In addition,… read more this recommended practice -- Defines terminology. --Describes general characteristics of fields. --Surveys operational principles of instrumentation. -- Indicates methods of calibration. -- Identifies significant sources of error. While field meter specifications are identified, frequencies and field levels that should be used for calibration purposes, and limits on measurement uncertainty are not recommended in this standard. Rather, it is left to standards that describe measurement protocols for different environments to indicate specific calibration points and uncertainty requirements. However, sources of uncertainty during calibration and measurements are identified and guidance is provided on how they should be combined to determine total measurement uncertainty. read less

定价： 75元 / 折扣价： 64 元

This standard includes calibration methods for electromagnetic field sensors and probes, excluding antennas per se, for the frequency range from 9 kHz to 40 GHz. The standard defines the characteristics, use and measurement uncertainties for electromagnetic field sensors and field probes. Areas described include: anisotropy effects, temperature effects, probe linearity effects, modulation effects, source and conductor proximity (near-field) effects, response in multi-frequency fields, partial- vs. full-immersion of probe/meter, non-purity and harmonic field effects caused by amplifiers. Specific instructions are provided for proper calibration of probes for different applications.

定价： 191元 / 折扣价： 163 元

This standard provides preferred voltage ratings above 230 kV nominal for alternating-current (ac) systems and equipment.

定价： 116元 / 折扣价： 99 元

A Failure Reporting Form, figures 1 and 2, has been developed by the IEEE Switchgear Committee to improve the reliability of circuit breakers through uniform reporting of field failures. The use of this approach is the recommended practice for all users of power circuit breakers.

定价： 135元 / 折扣价： 115 元

This standard defines requirements for test methods for measuring conformance to IEEE Std 1224â€"1993 {2}. IEEE Std 1224-1993 {2} is stated in terms that are independent of any particular programming language, but each implementation that conforms to it implements a particular programming language binding, and conforms to its programming language binding specification. Each set of test methods for measuring conformance to IEEE Std 1224-1993 {2} assumes a particular programming language binding… read more specification. Each programming language binding specification may impose further programming-language specific requirements on the test methods which, in conjunction with the requirements imposed by this standard, constitute the requirements that shall be satisfied by test methods used for measuring conformance to that programming language binding specification. This standard applies to all sets of test methods for measuring conformance to any programming language binding specification for IEEE Std 1224-1993 {2}. read less

定价： 158元 / 折扣价： 135 元

This standard defines requirements for test methods for measuring conformance to IEEE Std 1224.1-1993 {5}. IEEE Std 1224.1-1993 {5} is stated in terms that are independent of any particular programming language, but each implementation that conforms to it implements a particular programming language binding, and conforms to its programming language binding specification. Each set of test methods for measuring conformance to IEEE Std 1224.1-1993 {5} assumes a particular programming language… read more binding specification. Each programming language binding specification may impose further programming language specific requirements on the test methods which, in conjunction with the requirements imposed by this standard, constitute the requirements that shall be satisfied by test methods used for measuring conformance to that programming language binding specification. This standard applies to all sets of test methods for measuring conformance to any programming language binding specification for IEEE Std 1224.1-1993 {5}. read less

定价： 248元 / 折扣价： 211 元

This standard defines requirements for test methods for measuring conformance to IEEE Std 1224.2-1993 {14}. IEEE Std 1224.2-1993 {14} is stated in terms that are independent of any particular programming language, but each implementation that conforms to it implements a particular programming language binding, and conforms to its programming language binding specification. Each set of test methods for measuring conformance to IEEE Std 1224.2-1993 {14} assumes a particular programming language… read more binding specification. Each programming language binding specification may impose further, programming language specific, requirements on the test methods that, in conjunction with the requirements imposed by this standard, constitute the requirements that shall be satisfied by test methods used for measuring conformance to that programming language binding specification. This standard applies to all sets of test methods for measuring conformance to any programming language binding specification for IEEE Std 1224.2-1993 {14}. read less

定价： 187元 / 折扣价： 159 元

This standard defines an ISO/IEC 9989: 1990 {1} C language binding to the language-independent API defined in IEEE Std 1224.1-1993 {3}.1) It is intended to support application portability at the source-code level and to be used by application developers, system implementors, test method writers, and users.

定价： 146元 / 折扣价： 125 元

This standard defines an ISO/IEC 9899: 1990 {1} C language binding to the language-independent API defined in IEEE Std 1224.2-1993 {4}.1) It is intended to support application portability at the source-code level and to be used by application developers, system implementors, test method writers, and users.

定价： 187元 / 折扣价： 159 元

This standard defines requirements for test methods for measuring conformance to IEEE Std 1327.1-1993 {6}. IEEE Std 1327.1-1993 {6} contains a programming language binding specification for IEEE Std 1224.1-1993 {4}, using the C programming language. IEEE Std 1326.1-1993 {5} contains language-independent requirements for test methods for measuring conformance to programming language binding specifications for IEEE Std 1224.1-1993 {4}, such as that contained in IEEE Std 1327.1-1993 {6}. This… read more standard contains C language specific requirements for the test methods. Taken in conjunction with the requirements imposed by IEEE Std 1326.1-1993 {5}, they constitute the requirements that shall be satisfied by test methods used for measuring conformance to IEEE Std 1327.1-1993 {6}. read less

定价： 146元 / 折扣价： 125 元

This standard provides techniques for objective measurement of electroacoustic and voice-switching characteristics of speakerphones that connect directly or indirectly to an analog or digital telephone network. Due to the various characteristics of speakerphones and the environments in which they operate, not all of the test procedures in this standard are applicable to all speakerphones. Application of the test procedures to atypical speakerphones should be determined on an individual basis.

定价： 88元 / 折扣价： 75 元

This document provides a standard set of reliability program objectives for use between customers and producers, or within product development teams, to express reliability program requirements early in the development phase of electronic products and systems.

定价： 55元 / 折扣价： 47 元