Summary

Supplement 11 to the ITU-T L series of Recommendations refers to the best practices defined in Recommendation ITU‑T L.1300. More precisely, this Supplement provides firstly an introduction to a  verification test and feasibility study of energy and space efficient cooling systems for data centres with high density ICT devices. Secondly, trial calculations of energy conservation benefits with respect to the application to a full-scale data centre are then reported.