517.15 Health care multiwire circuits
What changed in 517.15
Health care life safety circuits for lighting and power can't be multiwire branch circuits. The rule used to come from Article 700.
Point by point
- Life safety branch circuits for lighting and power can't be multiwire branch circuits.
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- 2 more points on exactly what changed
- The 2023 rule next to the 2026 rule, side by side
- Why it changed
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This section across NEC® editions
2020 NEC®No change
This section did not change from 2017 to 2020.
2023 NEC®No change
This section did not change from 2020 to 2023.
2026 NEC®NewYou're here
Health care life safety circuits for lighting and power can't be multiwire branch circuits. The rule used to come from Article 700.
More 2026 changes in Article 517
This is a plain-English summary, not the NEC®'s exact wording. Always check the full section in the NEC® edition your area has adopted, plus any local amendments.
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