
Recommendation ITU-T L.1221 is a subpart (Part 2: Battery), of a series of Recommendations (the other Recommendations in the series being Recommendation ITU-T L.1220 and Recommendation ITU-T L.1222) on innovative energy storage systems for stationary power systems of telecom/information and communication technology (ICT) equipment used in telecom networks, data centres and customer premises equipment (CPE). [pdf]

This paper presents an overview of current standards for liquid hydrogen storage vessels, including ISO 13985—2006 Liquid hydrogen — Land vehicle fuel tanks, CGA H-3—2019 Standard for cryogenic hydrogen storage, and three Chinses standards GB/T 40060—2021 Technical requirements for storage and transportation of liquid hydrogen, T/CATSI 05006—2021 Special technical requirements for static vacuum-insulated liquid hydrogen pressure vessels, and T/CATSI 05007—2023 Special technical requirements for transportable vacuum-insulated liquid hydrogen pressure vessels. [pdf]

KDST provides high-performance battery energy storage cabinet solutions, specially designed for key applications such as telecom base stations, industrial control, and power systems.The cabinet meets the IP65 protection level and features excellent heat dissipation, waterproof, and dustproof capabilities.It integrates power systems, monitoring modules, temperature control, and safety protection to ensure stable long-term operation.Various capacities (e.g., 48V200Ah, 51.2V100Ah) and communication interfaces can be customized to meet diverse requirements. [pdf]

In the rule, DOE is amending the test procedure for UPSs to incorporate by reference relevant portions of the latest version of the industry testing standard, harmonize the current DOE definitions for UPSs, total harmonic distortion, and certain types of UPSs with the definitions in the latest version of the industry standard, and add a no-load testing condition, as an optional test. [pdf]
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