Which sheets need to agree?
Coordinate the SLD, generator or switchboard GA, controls schematic, equipment schedules, cable references and testing or commissioning document list.
| Sheet | Coordination | Source |
|---|---|---|
| SLD | Sources and transfer path | Approved topology |
| GA | Equipment and access | Vendor data |
| Controls | Start, transfer and alarm | Control philosophy |
| Schedule | Tags and ratings | Equipment list |
| Testing | Evidence reference | Commissioning plan |
Sources: Uptime Institute: Tier Standard: Topology, National Fire Protection Association: NFPA 110, Standard for Emergency and Standby Power Systems
What should not be claimed from a diagram?
A drawing does not prove generator performance, emergency classification, code compliance or integrated test acceptance. Keep those decisions with the responsible project professionals.
- Approved source
- Transfer arrangement
- Equipment tags
- Controls
- Testing boundary
How should the set be handed over?
Provide native and review files, drawing register, source list, open-item status and approved change record. Keep the handover traceable.
Common questions
What else should the bid team know?
What should a emergency power drawing package include?
It should coordinate sources, transfer, equipment, controls, schedules, interfaces and testing references.
Who reviews a emergency power drawing package?
The drafter assembles the set and the responsible engineer and commissioning team approve technical content.
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