Collection
Power distribution, UPS, batteries, protection and redundant supply.
217–240 / 418
Open Compute Project Foundation 2026
Add an ORW rack family whose footprint, height and payload come from the chosen design specification rather than fixed defaults, prompt users for those values, and warn that floor-loading and aisle-pitch checks depend on them.
Eaton 2020
Add maxParallelUnits, paralleling architecture (distributed or centralised bypass) and static switch rating to the UPS catalogue.
Caterpillar 2018
Build an architecture selector with the three options and show consequences: LV-only limit for on-set, required breaker closing speed, and master-controller need for complex sequences.
Vertiv 2018
Give UPS catalogue entries a topology enum, transformer-based vs transformer-free, modular increment (kW) and maximum frame, and eco-mode type (passive bypass vs active inverter).
arXiv preprint (Microsoft Azure) 2023
In the power planner, apply different diversity and oversubscription factors by workload: inference rows can be provisioned below sum-of-nameplate (for example peak about 80% of provisioned), while training rows should assume near-coincident peaks with only about 10% headroom.
Schneider Electric 2024
For every rack, row and upstream device store design maximum supply, design maximum demand (nameplate or as-configured) and measured actual where available; enforce supply >= demand at each hierarchy level including under N-1.
Schneider Electric 2013
Warn when rack branch-circuit load exceeds 80% of breaker rating.
Legrand 2015
In the PDU catalogue keep fields for input (V, A, phases), metering accuracy class and operating temperature rating, using 60 C as the hot-aisle reference.
Energies (MDPI AG) 2015
Make inrush control (pre-charge, soft start) an explicit design step in DC distribution, and assess contact-welding risk in connector and contact selection.
arXiv preprint (Microsoft / OpenAI / NVIDIA) 2025
For AI-training halls, carry a 'synchronous load' flag and capture utility time-domain (MW/s ramp up/down, dynamic range) and frequency-domain (critical band, spectral cap) limits as interconnection inputs.
The Green Grid 2021
In AC-vs-DC comparisons, do not assume a large PSU efficiency gain at 380 V DC.
arXiv preprint (Emerald AI / EPRI / National Grid / NVIDIA / Oracle; submitted to IEEE) 2026
Add a 'flexible load' profile in the grid-connection module: committed reduction depth (%), response time (s), duration (h) and recovery, derived from the workload priority mix.
International Energy Agency 2026
In the grid-connection module, support firm and non-firm (curtailable, phased, dynamic-limit) options and size the BESS or genset capacity needed to ride through curtailment hours.
Schneider Electric 2011
Record the cord count (single or dual) of each IT device in the rack model and compute the single-corded share.
IEEE Transactions on Industry Applications (Institute of Electrical and Electronics Engineers (IEEE)) 2026
In battery-room arc-flash labelling, calculate the self-extinguishing model alongside the maximum power method rather than using the latter as the only reference, and check cases where excessive PPE categories make maintenance impractical.
Vertiv 2019
Add a delivery-method attribute per block (stick-built, skid, power module, prefab room/facility) with factory-test status and shipping-split count.
Consulting-Specifying Engineer 2016
Run a preliminary arc-flash estimate at design stage and flag white-space panels above about 1.2 cal/cm2 or above PPE category 2.
Consulting-Specifying Engineer 2012
Arc-flash outputs should label both line and load sides of mains and compare normal versus maintenance-mode settings.
Fire (MDPI AG) 2026
Compare BESS compartmentation quantitatively: two compartments halve HF dose and IDLH clearance time, but IDLH is still exceeded for anyone in the room in full thermal runaway, so runaway prevention (BMS integrity, UL 9540A containment, emergency power off) must stay the primary control.
Open Compute Project Foundation 2025
Define a 2 MW CDU catalogue template for liquid-cooling layouts: dimensions, wet weight (6910 lb) for slab loading, 74 kW parasitic load, 3 C approach and 0.25 GPM/kW facility flow.
7x24 Exchange Magazine 2025
Adopt these category codes (LD...EHD) as a rack density class derived automatically from kW/rack.
Uptime Institute Journal 2020
Ask users for modal and peak rack density separately, not just the average, and size cooling and power for the peak cluster.
Legrand 2015
For A/B rack feeds, check that the sum of both feeds' peak load stays below 80 % of one branch breaker (failover check) and warn when only average load is entered.
U.S. Department of Energy, Secretary of Energy Advisory Board (SEAB) 2024
Offer alternatives to diesel (gas, BESS, fuel cells) in backup-power design.
All content and rights belong to the respective authors and publishers. SoSo CAD provides only the citation, its own summary and a link to the source, and is not responsible for the sources' content.
Monthly newsletter · free
Once a month: new library sources, changes to Turkish regulations and upcoming data centre events.
