This standard covers design tests for shield resistance, simulated touch current and a simulated fault-current initiation for insulation shields used on cable accessories, specifically 15 kV through 35 kV class joints and separable insulated connectors.

定价： 57元 / 折扣价： 49 元

The criteria contained in this standard establish minimum functional and design requirements for the power, instrumentation, and control portions of safety systems for nuclear power generating stations. To satisfy the criteria in this standard, interface requirements may be imposed on the other portions of the safety system as shown in Figure 1. Safety system functional and design criteria are also contained in other standards.

定价： 66元 / 折扣价： 57 元

The recommended practice contains recommendations for the seismic design of substation buildings and structures, and the seismic design and qualification of substation equipment.

定价： 208元 / 折扣价： 177 元

This recommended practice addresses the inductive environment that exists in the vicinity of electric power and wire-line telecommunications systems and the interfering effect that may be produced thereeby; guidance is offered for the control or modification of the environment and the susceptibility of the affected systems in order to maintain an acceptable level of interference. An acceptable level is defined as an amount of steady-state or surge induced longitudinal voltage or current that… read more does not cause a personnel or public safety hazard, damage to cable or equipment, and/or circuit degradation or failure. To aid the user of this recommended practice in calculating induction between power and telecommunication lines, the concept of an interface is developed. This recommended practice permits either party, without need to involve the other, to verify the induction at the interface by use of a probe wire. This recommended practice does not apply to railway signal circuits. read less

定价： 106元 / 折扣价： 91 元

The 1450 test interface (STIL) and Core Test language bundle provides an interface between digital test generation tools and test equipment and interface between digital test generation tools and test equipment. It defines structures in STIL for specifying the DC conditions for a device under test. The STIL environment supports transferring tester-independent test programs to a specific ATE system. The Core Test Language (CTL) is a language created for a System-on-Chip flow (or SoC flow), where… read more a design created by one group is reused as a sub-design of a design created by another group. It defines how the necessary information is passed from scan insertion to pattern generation and from pattern generation to diagnosis such that different tool vendors could be used for each step independent of on-chip scan compression logic used. It defines language constructs sufficient to represent the context of a memory core and of the integration of that memory core into an System-on-Chip flow (SoC). read less

定价： 0元 / 折扣价： 0 元

The scope of this project is to define a general object-oriented information model that may be used to structure information and identify services used in point-of-care (POC) medical device communications. The scope is primarily focused on acute care medical devices and the communication of patient vital signs information.

定价： 160元 / 折扣价： 136 元

This standard specifies requirements for cryptographic units that provide encryption and authentication for data contained within storage media. Full interchange requires additional format specifications (such as compression algorithms and physical data format) that are beyond the scope of this standard.

定价： 83元 / 折扣价： 71 元

The scope of this standard is the definition of an exchange format, utilizing Web Ontology Language (OWL) and extensible markup language (XML), for exchanging data resulting from executing tests of a unit under test (UUT) via a test program in an automatic test environment.

定价： 66元 / 折扣价： 57 元

This document provides guidance for an objective evaluation of Sodium-Beta energy storage technology by a potential user for any stationary application. This document is to be used in conjunction with IEEE Std 1679™ IEEE Recommended Practice for the Characterization and Evaluation of Emerging Energy Storage Technologies in Secondary Applications. For the purposes of this document, Sodium-Beta batteries include those secondary (rechargeable) electro-chemistries with sodium as the active species… read more exchanged between the electrodes during charging and discharging, and operating above the melting point of sodium. These batteries use a solid β″-alumina electrolyte, typically written as β -alumina. Examples of secondary Sodium-Beta batteries are sodium-metal chloride and sodium-sulfur batteries. Non-rechargeable batteries are beyond the scope of this document. The outline of IEEE Std 1679 is followed in this document, with tutorial information specific to Sodium-Beta batteries provided as appropriate. Examples of tutorial information include technology descriptions, operating parameters, failure modes, safety information, battery architecture, and qualification and application considerations. This document does not cover sizing, installation, or routine maintenance and testing requirements, except insofar as they may influence the evaluation of a Sodium-Beta battery for its intended application. read less

定价： 57元 / 折扣价： 49 元

This standard defines environmental and social responsibility performance criteria for computers (i.e. desktop computers, notebook computers, integrated desktop computers, portable all-in-one computers, slates/tablets, small scale servers, thin clients, and workstations) and displays (i.e. monitors and signage displays). The environmental and social responsibility performance criteria relate to substance management, materials selection, design for end of life, product longevity/life-cycle… read more extension, energy conservation, end-of-life management, packaging, life cycle assessment and carbon footprint, corporate environmental performance, and corporate social responsibility read less

定价： 199元 / 折扣价： 170 元

The standard for digital media content description specifies digital media visual content descriptors to satisfy the requirement of searching in large-scale multimedia data and support applications to visual surveillance.

定价： 83元 / 折扣价： 71 元

This standard defines the encapsulation and mapping of radio protocols for transport over Ethernet frames, using radio over Ethernet (RoE). Structure-agnostic definitions are provided for any digitized radio data. Structure-aware definitions are provided for the Common Public Radio Interface (CPRI(TM)). Native mode definitions are provided for digitized radio in-phase and quadrature (I/Q) payload and control data channels.

定价：

This standard defines the application layer with TCP/IP providing functions in the transport and Internet layers to enable utility management of the end user energy environment, including demand response, load control, time of day pricing, management of distributed generation, electric vehicles, etc. Depending on the physical layer in use (e.g., IEEE 802.15.4™, IEEE 802.11™, IEEE 1901™, IEEE 1901.2™), a variety of lower layer protocols may be involved in providing a complete solution. Generally,… read more lower layer protocols are not discussed in this standard except where there is direct interaction with the application protocol. This standard defines the mechanisms for exchanging application messages, the exact messages exchanged including error messages, and the security features used to protect the application messages. With respect to the Open Systems Interconnection (OSI) network model, this standard is built using the four layer Internet stack model. The defined application profile sources elements from many existing standards, including IEC 61968 and IEC 61850, and follows a RESTful architecture (Fielding [B3]) using IETF protocols such as HTTP. read less

定价： 295元 / 折扣价： 251 元

A key element of microgrid operation is the microgrid controller and more specifically the energy management system. It includes the control functions that define the microgrid as a system that can manage itself, and operate autonomously or grid-connected, and seamlessly connect to and disconnect from the main distribution grid for the exchange of power and the supply of ancillary services, including to the distribution system to which it is connected. It is recognized that microgrid components… read more and operational solutions exist in different configurations with different implementations. The scope of this standard is to develop a set of testing procedures allowing the verification, the quantification of the performance, and a comparison of the performance with expected minimum requirements of the different functions of the microgrid controller that are common to the control of all microgrids, regardless of topology, configuration, or jurisdiction. It aims to present metrics for a comparison of the control functions required from both the microgrid operator and the Distribution System Operator (DSO). A set of testing and performance metrics is developed. read less

定价： 66元 / 折扣价： 57 元

This standard provides a set of letter symbols for quantities and abbreviations and recommendations for their use in the science and technology of acoustics. The science and technology of acoustics includes sound, ultrasound, and infrasound in all media. Gases, especially air; liquids, especially water; and solids are examples of media with which acoustics is concerned. Specialties within acoustics that make use of the letter symbols and abbreviations within this standard include, but are not… read more limited to: speech, hearing, music, noise control, vibration, shock, sonar, and transducers. Although remarks and limited short-form information are provided for many of the symbols and abbreviations contained herein, definitions and methods of calculating the various quantities are outside the scope of this standard. read less

定价： 106元 / 折扣价： 91 元