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Bonding, Grounding, Lightning Protection, and Surge Suppression
The comprehensive electrical protection required for the critical facility is achieved using a sy...
Automation and Control, Monitoring
Monitoring is defined as the telemetry and ability to view what is going on within a given system...
Load Management
Unused or abandoned cables not terminated at equipment or marked for future use shall be removed....
Computer Room Equipment Power Distribution
The distribution to the critical loads must be exactly mapped to the redundancy of those loads an...
Direct Current (DC) Power Systems
DC power systems that serve critical loads are common in two forms: The primary power source f...
Power Distribution Units (PDUs)
PDUs with an isolation transformer create a separately derived neutral for downstream loads altho...
UPS Output Distribution
UPS output distribution switchboards are located immediately downstream of the UPS power plants a...
Ties and Interconnections
If the UPS sources are synchronized and are not overloaded, UPS systems may transfer load between...
UPS Output Switchboards
Output switchboards directly support the PDU and ASTS systems downstream of the UPS power plants....
Synchronization
Synchronization can occur in one of two ways for UPS systems: Actively based on some form of e...
UPS System
UPS and critical power system applications are focused on delivering quality power, whether origi...
Electrical Class Ratings
The standard includes five Classes relating to various levels of reliability of the data center ...
Availability
All electrical equipment must have redundancy to increase both fault tolerance and it must be doc...
On Site Generation
Backup generators should be there as a backup to data center equipment in case of utility power f...
Transformers
Transformers usually transform the utility’s medium distribution voltage to a lower voltage for u...
Introduction
Electrical distribution systems for data centers are designed to power the center safely and reli...
Structural Concerns Specific to Data Center Design
Floor loading (superimposed live load) shall be a minimum of 7.2 kPa2 (150 lbf/ft2) with 1.2 kPa ...
Structural Building Code Compliance and Coordination
Local building codes shall be consulted in the planning and implementation of changes to the buil...
Equipment Bracing System
Equipment cabinets and racks shall be braced in accordance with local codes. Cabinets braced at t...
Ceilings
In data center computer rooms and telecommunications spaces (e.g., entrance rooms, TRs), the mini...