Troubleshooting Arc Flash Hazard Results
The following are common issues with arc flash hazard results.
- Arc flash hazard is not calculated and the report shows “No Valid Trip Device Found Upstream or in Bus Dialog”
- The Arc Flash Hazard report shows upstream devices that do not exist on the one-line
- Downstream buses are showing greater hazard than upstream buses
- Arc Flash Hazard report indicates a trip device that is upstream to the trip device I expect will trip first
- Arc Flash Hazard results of almost identical buses are significantly different although the fault currents and trip times are similar
- The report displays an "Out of IEEE 1584-2018 Range" message
- The Arc Flash Hazard report shows upstream devices that do not exist on the one-line
