Which grounding items should be separated?
Keep grid or electrode work, equipment bonding, conductors, connections, test points and testing evidence separate where the drawings support that split.
| Item | Quantity basis | Source |
|---|---|---|
| Grid or electrode | Route or system | Grounding design |
| Bonding | Equipment and rooms | GA and schedule |
| Conductor | Type and length | Detail or schedule |
| Connection | Clamps or terminations | Approved detail |
| Testing | Required record | Project requirement |
Sources: National Fire Protection Association: NFPA 70, National Electrical Code
How should unknown grounding values be handled?
Record the missing design input and route it to the responsible engineer. Do not select conductor size, resistance target or connection method from a generic estimate page.
- Design revision
- Equipment tags
- Conductor and route
- Connection detail
- Test responsibility
What does the estimate review check?
Check that grounding scope is not hidden in another package, that equipment interfaces are visible and that testing is included only where required.
Common questions
What else should the bid team know?
What should a grounding and bonding estimate include?
It should identify grounding systems, bonds, conductors, connections, test points and interfaces.
Who reviews a grounding and bonding estimate?
The estimator checks the commercial build-up and the engineer confirms the design basis and sign-off.
Does this page create project quantities?
No. Use the issued drawings, schedules and specifications. The estimator reviews and approves the project basis.
Primary sources
- MasterFormat 2026Construction Specifications Institute
- NFPA 70, National Electrical CodeNational Fire Protection Association
- ANSI/TIA-942 Telecommunications Infrastructure Standard for Data CentersTelecommunications Industry Association
- Tier Standard: TopologyUptime Institute