EPI Data Centre Associate case studies
EPI Data Centre Associate · Put your knowledge to work in context.
The EPI Data Centre Associate (DCA) is a certification offered by EPI, a certification body that is part of TÜV NORD GROUP and describes itself as the leading global certification body for data centre facilities, operations, and professionals. EPI offers globally accredited courses developed to enhance skills related to data center design, operations and compliance. The EPI Data Centre Associate case studies are 5 cases and about 5,358 words.
140 kW Racks in a 2011 Vintage Hall
An operator runs a 1,200 m² legacy hall designed in 2011 for 500 W/m² and 5 kW per rack. It has a 600 mm raised floor, perimeter CRAHs providing 350 kW of sensible cooling at 24 °C supply, hot-aisle return without containment, and 2 × 200 kVA UPS modules in parallel (N+1) currently at 45% load.
1,031 words, about 5 min2Marketing Wants to Call It Tier III
A 6 MW colocation provider is preparing a tender response. Its facility has two 33 kV utility feeders that terminate on the same substation busbar, N+1 chillers on common headers with manual isolation valves, a single UPS block with a maintenance bypass that requires transferring the load to raw mains, and N+1 generators with automatic transfer.
993 words, about 5 min3Deferred Maintenance Catches Up With the Batteries
A 2 MW data centre runs four UPS modules, three 1.5 MW diesel generators, and VRLA battery strings now four years old. The battery room has drifted to 28 °C because a CRAH serving it was repurposed during an expansion.
1,161 words, about 6 min4Colocation Renewal: A 99.999% Promise and a Flood Map
A trading firm must renew a 300 kW colocation contract for two halls at a single provider site. The provider offers 99.999% availability with service credits capped at 10% of the monthly fee as the sole remedy, no audit rights, no maintenance notification obligation, and electrical maintenance subcontracted to a third party.
1,044 words, about 5 min5The PUE Figure That Was Estimated
A 1.2 MW data centre publishes an annual PUE of 1.25 on its website and repeats it in customer contracts as a guaranteed maximum. The number is produced in a spreadsheet: IT energy is taken from the UPS output meter, total facility energy is taken from a landlord meter that also supplies two office floors and a car park, and because chiller sub-metering was never installed, cooling energy is estimated at 18% of IT load.
1,129 words, about 6 min