Knowing that the ITIC/CBEMA curves do not align with contemporary ICT equipment presents a number of challenges to data center owners and operators.
Rarely is a data cener designed for one specific type of ICT equipment. ICT kit comes and goes in the data center. The refresh cycles for ICT equipment can be as short as three years, and in a colocation data center the equipment comes and goes daily.
Also, it is rare that the population of ICT equipment is homogeneous. There is most commonly a mixture of manufacturers, models, and vintages of equipment. Furthermore, it’s possible that an ICT manufacturer will source power supply units from multiple manufacturers for their products.
Our work at The Green Grid recommends that a test standard be developed that applies to today’s ICT equipment and the variety of data center electrical distribution architectures that exist today. Further, we suggest that ICT equipment manufacturers release susceptibility curves for the equipment they produce. These would give a more complete picture for what to expect from this kit in the context of power quality disturbances.
By Bob Landstrom
(This is Part-8 of a 9-part series on a modern assessment of the ITIC/CBEMA curves)