Which drawings need cross-reference?
Use the approved topology and equipment tags to coordinate the SLD, PDU or RPP schedule, room layout, feeder or cable schedule and controls or monitoring interface.
| Drawing | Check | Source |
|---|---|---|
| SLD | Source and feeder path | Approved topology |
| GA | Outline and access | Vendor data |
| Schedule | Tag and rating | Equipment list |
| Cable | From and to | Cable schedule |
| Controls | Status and alarm | I/O or monitoring input |
How should a missing downstream load be handled?
Keep the feeder or load open and cite the missing schedule or design input. Do not populate a load from a typical data center diagram.
- Equipment tag
- Feeder source
- Downstream boundary
- Monitoring interface
- Open load input
What is the package review?
Review paths, tags, supplied ratings, layouts, notes, revisions and open items. The engineer approves the design content.
Common questions
What else should the bid team know?
What should a PDU and RPP drawing package include?
It should include approved SLD, GA, schedules, feeder references, interfaces and issue status.
Who reviews a PDU and RPP drawing package?
The drafter prepares the set and the responsible engineer confirms the design and sign-off.
Does drafting approve the critical power design?
No. The responsible registered engineer makes design decisions and performs engineering sign-off.
Primary sources
- ANSI/TIA-942 Telecommunications Infrastructure Standard for Data CentersTelecommunications Industry Association
- Tier Standard: TopologyUptime Institute
- NFPA 70, National Electrical CodeNational Fire Protection Association
- NFPA 110, Standard for Emergency and Standby Power SystemsNational Fire Protection Association