https://yse.yabesh.ir/std/handle/yse/110 Mon, 09 Feb 2026 09:05:45 GMT 2026-02-09T09:05:45Z https://yse.yabesh.ir/std/handle/yse/288639 Computed Tomography Dose Check; NEMA XR 25 NEMA - National Electrical Manufacturers Association This Standard applies to particular dose-related notification and alert messages appearing on the operating consoles of CT scanners. This Standard is not intended to define all notification, alert, or other messages resident on any CT scanner Tue, 01 Jan 2019 00:00:00 GMT https://yse.yabesh.ir/std/handle/yse/288639 2019-01-01T00:00:00Z https://yse.yabesh.ir/std/handle/yse/288637 Standard for Uniformly Measuring and Expressing the Performance of Electrical Energy Storage Systems; NEMA ESS 1 NEMA - National Electrical Manufacturers Association The Standard identifies general information and technical specifications relevant in describing an ESS and also defines a set of test, measurement, and evaluation criteria with which to express the performance of electrical ESSs that are intended for energy-intensive and/or power-intensive stationary applications. An ESS includes a storage device, battery management system, and any power conversion systems installed with the storage device. The Standard is agnostic with respect to the storage technology and the size and rating of the ESS. The Standard does not apply to single-use storage devices and storage devices that are not coupled with power conversion systems, nor does it address safety, security, or operations and maintenance of ESSs, or provide any pass/fail criteria. It also does not apply to thermal energy storage systems Purpose This Standard provides a set of “best practices” for characterizing energy storage systems (ESSs) and measuring and reporting their performance. It serves as a basis for assessing how an ESS will perform with respect to key performance attributes relevant to different applications. It is intended to provide a valid and accurate basis for the comparison of different ESSs. By achieving the stated purpose, the Standard will enable more informed decision-making in the selection of ESSs for various stationary applications Tue, 01 Jan 2019 00:00:00 GMT https://yse.yabesh.ir/std/handle/yse/288637 2019-01-01T00:00:00Z https://yse.yabesh.ir/std/handle/yse/288638 Considerations for Remanufacturing of Medical Imaging Devices; NEMA MITA RMD P1 NEMA - National Electrical Manufacturers Association Introduction Medical devices are subject to a number of post-sale aftermarket activities, including servicing, upgrading, updating, refurbishing, and remanufacturing. These activities, when performed correctly and in conformance with applicable Federal regulations, can ensure safe and effective performance over the lifecycle of the device. Unfortunately, these activities are not always performed correctly with applicable oversight, creating potential patient safety and device performance issues Tue, 01 Jan 2019 00:00:00 GMT https://yse.yabesh.ir/std/handle/yse/288638 2019-01-01T00:00:00Z https://yse.yabesh.ir/std/handle/yse/288633 Electric Utility Communications Networks; NEMA UTN P1 NEMA - National Electrical Manufacturers Association Introduction The past two decades have witnessed a revolution in the electric industry with the emergence of distributed energy resources (DER), advances in sensors, data networks, software technologies and the emergence of the Internet of Things. These new technologies and solutions can be utilized to help alleviate rising security threats, aging infrastructure, increasing customer demands, and a more dynamic operating environment. One of the key solutions being overlaid with the electric grid is the use of a pervasive real-time, reliable and secure information and communication technology (ICT) infrastructure. ICT enables grid operators to effectively monitor and control remote devices in end-use, distribution systems and substations using the real-time bidirectional communication data generated by sensors throughout the system. Utilities face the challenge of using information and communication networks more effectively to manage the supply and demand of electricity. Information flow, made possible by network communications, is an enabler for improved reliability and resilience of electricity distribution, and enhanced business and operational responsiveness. To realize these benefits, utilities are modernizing their network information and communications infrastructure. With the ever-growing need for utilities to communicate with devices in the field, legacy networks are being replaced and upgraded. Utilities are extending their networks further to enable use cases such as SCADA, AMI, voltage monitoring, fault detection, distribution automation (DA), outage detection, advanced meter reading, load monitoring, service restoration, fault isolation, and load control. However, due to differences in data volume and density, it is typical to use a layered communication network approach to isolate AMI and grid optimization application networks from grid control self-healing networks. According to a survey by Zpryme, utilities recognize their communication networks must change to enable the next-generation distribution grid and enable a suite of use cases. Just 6% feel extremely ready with their current communication networks to support changes coming to the grid in the next five years.1 1 “Modernizing the Distribution Grid”, Silver Spring Networks, http://www.silverspringnet.com/wpcontent/uploads/SSNI_Grid_Modernization_WP_2017.pdf , Accessed September 2018 Tue, 01 Jan 2019 00:00:00 GMT https://yse.yabesh.ir/std/handle/yse/288633 2019-01-01T00:00:00Z