Which columns should the register contain?
Use the project numbering and title-block convention, then add working fields for source, owner and review status.
| Field | Purpose | Example |
|---|---|---|
| Number | Stable sheet identity | Project drawing ID |
| Title | Find the subject | Protection schematic |
| Revision | Control change | Current issue |
| Source | Trace input | Markup or schedule |
| Status | Control use | For review or issued |
How should superseded drawings be treated?
Retain the previous revision with its status and supersession date. Do not delete it from the history because the team may need to prove which source informed an earlier decision.
- Current issue
- Previous revision
- Review comments
- Transmittal reference
- Open action
What should the register not decide?
The register controls documents. It does not decide engineering approval, construction suitability or design precedence.
Common questions
What else should the bid team know?
What should a substation drawing register include?
It should contain number, title, revision, issue purpose, source, owner, reviewer, status and history.
Who reviews a substation drawing register?
Document control owns the register, while drafters and engineers update and approve drawing status.
Does drafting approve the engineering design?
No. The responsible registered engineer makes design decisions and performs engineering sign-off.
Primary sources
- IEEE C2-2023 National Electrical Safety CodeIEEE Standards Association
- IEC 61936-1:2021International Electrotechnical Commission
- IEC 60617 Graphical Symbols for DiagramsInternational Electrotechnical Commission
- 29 CFR 1910.269Occupational Safety and Health Administration