A facilities management provider asked us to carry out the five-yearly Electrical Installation Condition Report (EICR) for one phase of a colocation data centre in Essex. The phase covered four data halls and their LV switchrooms over two floors, all on live A and B supply streams.
We created a bespoke testing programme over six weekends of 12-hour shifts. Testing was carried out one stream at a time, so the other stream kept the IT load supported throughout. Data halls that were not yet in use were tested during the week.
The scope was 100% visual inspection and testing of 7,174 circuits, covering 32 PDUs, UPS output panels, busbars, main LV panels, mechanical UPS panels and CRAC distribution boards.
The client received a full EICR for each supply stream, to BS 7671 and IET Guidance Note 3. We’ve since been invited back to price the next round of testing on the same site.



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