220.42 General lighting demand factors
What changed in 220.42
Hospitals lost their lighting demand factors, and hotel and motel demand factors went up to match the new Table 220.12 values.
Point by point
- Hospitals were removed from Table 220.42, so hospital general lighting is now taken at 100 percent.
The full lesson is in the Pro Version
Get the whole breakdown
- 3 more points on exactly what changed
- The 2017 rule next to the 2020 rule, side by side
- Why it changed
- What to do and check on the job
One membership unlocks every NEC® change lesson for 2020, 2023 and 2026, plus every video, quiz, flashcard and the Testing Center.
Checking your membership…
This section across NEC® editions
2020 NEC®RevisedYou're here
Hospitals lost their lighting demand factors, and hotel and motel demand factors went up to match the new Table 220.12 values.
2023 NEC®No change
This section did not change from 2020 to 2023.
2026 NEC®No change
This section did not change from 2023 to 2026.
More 2020 changes in Article 220
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.
NEC® and National Electrical Code® are registered trademarks of the National Fire Protection Association (NFPA). Electrical Exam Coach is not affiliated with or endorsed by NFPA.
Find it faster on test day