In 2023, the industry guideline that covers electrical equipment maintenance has been revised significantly since it was first print 50 years ago in 1973. The former Recommended Practice for Electrical Equipment Maintenance to the Standard for Electrical Equipment Maintenance, how now become the Standard for Electrical Equipment Maintenance, effective on January 16, 2023, when it was approved as an American National Standard by the American National Standards Institute (ANSI).
The 2023 version of NFPA-70B, now a standard, shifts from recommendations to mandatory language surrounding the implementation of electrical maintenance programs. Earlier versions of NFPA-70B provide for what electrical maintenance practices “should” be, whereas the new version provides for what they “shall” be. Changes were made to incorporate the electrical equipment physical condition, criticality and operating environment when determining the frequency of maintenance. The failure of improperly maintained equipment could impact personnel or environmental safety.
See the complete White Paper at https://www.dropbox.com/scl/fi/cbf6wpeb5lm4p4zdca4hp/NFPA70B-White-Paper-Power-Engineers-Rev0.pdf?rlkey=oan5m69o7ib931nv2p2exo2fa&dl=0