Our equipment labels are 3 years old. Do we need to re-print our labels with the new Standard requirements?
The process of creating equipment labels is often a result of completing an arc flash incident energy analysis. The NFPA 70E Standard states that an incident energy analysis shall be updated when changes occur in your electrical distribution system that could affect the data on your labels. So the answer is if nothing has changed in your electrical distribution system, then the labels are still valid.
You will however need to address your equipment labels when the incident energy analysis needs be reviewed for accuracy at intervals not to exceed 5 years.
An equipment label exception identified by the Standard is that unless changes in the electrical distribution system(s) render the label inaccurate, labels applied prior to the effective date of the latest edition of the Standard shall be acceptable if they complied with the requirements for equipment labeling in the Standard in effect at the time the labels were applied.
