Specifying Safety Requirements During Selection
What to state
| Item | What to specify |
|---|---|
| Risk assessment | Who performs it and when it is reviewed |
| Required functions | Stops, interlocks, guarding and monitoring |
| Performance level | The reliability required for each function |
| Verification | How compliance will be demonstrated and recorded |
| Change control | What happens when the cell is modified |
Why it matters commercially
- Safety scope added late is the most common source of cost growth.
- Clear requirements make proposals comparable.
- Verification records are needed for insurance and audit.
The required safety level follows from the risk assessment. Confirm with a competent specialist.