Which inputs control the plan and profile?
Use the approved equipment data, civil background, structural input, cable or duct routes and project drawing list. Record preliminary inputs explicitly.
| Input | Coordination | Evidence |
|---|---|---|
| Equipment | Outline and tag | Vendor data |
| Levels | Ground and platform | Civil input |
| Structures | Support and clearance | Structural input |
| Cables | Entry and route | Cable plan |
| Access | Maintenance boundary | Project requirement |
Sources: IEEE Standards Association: IEEE C2-2023 National Electrical Safety Code, International Electrotechnical Commission: IEC 61936-1:2021
How should a clearance question be handled?
Mark the affected view, source and decision owner. Do not derive a construction clearance from an unscaled image or an unrelated project.
- Source revision
- Dimension status
- Equipment tag
- Access path
- Engineer review
What is the drawing issue gate?
Check tags, references, dimensions, title block, source status and open items. The responsible engineer approves the design content.
Common questions
What else should the bid team know?
What should a switchyard plan and profile include?
It should show equipment, levels, structures, routes, access, dimensions, sources and open items.
Who reviews a switchyard plan and profile?
The drafter coordinates the views and the responsible design team approves the engineering basis.
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