From NFPA’s 2021 70E Factsheet…
- Article 110: Some requirements in Article 110 have been reorganized for a more logical progression, including moving general principles of lockout/tagout from Section 120.2 and general principles of an electrically safe work condition and energized work requirements from Section 130.2.
- New subsection 110.5(K) REQUIRES that an employer’s electrical safety program include a policy on establishing an electrically safe work condition.
- Article 130: Sections 130.1 and 130.2 have been rewritten to accommodate the relocation of information from former Sections 130.2(A) to 110.3 and to keep the focus of Article 130 on requirements related to work involving electrical hazards.
- Table 130.5(C): Revisions have been made to Table 130.5(C), which can be used to help estimate the likelihood of occurrence of an arc flash incident, including a new entry for the initial circuit breaker or switch operation and again after maintenance, as each has a higher likelihood of an arc-flash event.
- The reference to arc-resistant switchgear has been changed to arc-resistant equipment in Tables 130.5(C) and 130.7(C)(15)(a) to address the use of other types of arc-resistant equipment.
- Section 350.9: Energy thresholds for electrical equipment and systems in laboratories have been revised to accurately reflect the data in the Informational Note’s resource document, and the capacitive circuit threshold has been deleted to prevent duplication and potential confusion with new Article 360.
- Article 360, Safety-Related Requirements for Capacitors, and Annex R, Working with Capacitors, were added to address specific electrical safety requirements unique to capacitors. Annex D, Incident Energy and Arc Flash Boundary Calculation Methods was revised to reference IEEE-1584-2018 as a method of calculation.
CLICK HERE for the Full 2021 FACT SHEET