Data record `std.nfpa-70e.structure.130-4-e-shock-boundaries`

Verified 2026-10-27 Confidence: High

Clause 130.4(E) of NFPA 70E-2027 sets the shock protection boundaries: the limited and restricted approach boundaries apply where personnel approach exposed energized conductors or circuit parts, the arc flash boundary is independent of them and may be larger, and two tables, Table 130.4(E)(a) for ac systems and Table 130.4(E)(b) for dc systems, give the boundary distances by nominal voltage range in three columns, the limited approach boundary for an exposed movable conductor, the limited approach boundary for an exposed fixed circuit part, and the restricted approach boundary including the inadvertent-movement adder.

Provenance. Where this record comes from and where it is used: the cited source, the record itself and the entry that cites it.

Provenance: the chain from source to entry.
Step	Item	Detail
Source	NFPA 70E-2027	Licensed standard, clause 130.4(E)
Data record	std.nfpa-70e.structure.130-4-e-shock-boundaries	Verified 2026-10-27
Entry	Standard for Electrical Safety in the Workplace	No revisions

Subject: Standard for Electrical Safety in the Workplace (Standards)
Kind: Standard scope
Source: NFPA 70E-2027, clause 130.4(E), Standard for Electrical Safety in the Workplace, NFPA. Publisher page

History

Every recorded change to this data record, oldest first.
Date	Change
2026-10-27	created

Cite this page

Cite the governing standard for the fact itself; cite this page as the finding aid.

"Data record std.nfpa-70e.structure.130-4-e-shock-boundaries." Arc Flash Reference. 2026-10-27. https://www.arcflashreference.com/data/std.nfpa-70e.structure.130-4-e-shock-boundaries/.

Arc Flash Reference, Data record std.nfpa-70e.structure.130-4-e-shock-boundaries (Oct. 27, 2026), https://www.arcflashreference.com/data/std.nfpa-70e.structure.130-4-e-shock-boundaries/.

@misc{etr-data-std-nfpa-70e-structure-130-4-e-shock-boundaries,
  title = {Data record std.nfpa-70e.structure.130-4-e-shock-boundaries},
  howpublished = {\url{https://www.arcflashreference.com/data/std.nfpa-70e.structure.130-4-e-shock-boundaries/}},
  organization = {Arc Flash Reference},
  publisher = {Arc Flash Reference},
  year = {2026},
  note = {last substantive change 2026-10-27}
}

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