Uniformat D5090

Emergency lighting unit

Also called battery pack, emergency light

• Confidence C
• Version 0.4.0 (permanent link)
• Reviewed 2026-10-22

Service life

Years in service. The band runs from the shortest to the longest life the sources state, so it shows how much they disagree, not how long 80% of units last. The line is the median of the stated lives.

Basis

• 5–10 years · CNA e-Tool Estimated Useful Life Table, p15 · HUD CNA 3.6.2.6 “Emergency lights, illuminated signs” — U.S. Department of Housing and Urban Development (planning life)
  Family properties 5 years, elderly 10. US multifamily housing.
• 20 years · Meaford: By-law 2020-83, Tangible Capital Asset Policy, Appendix A Estimated Useful Lives, p17 · “Electrical - Emergency Lighting” (accounting life)
  Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page.

How sources are chosen and recorded: sourcing policy.

Preventive maintenance

1 tasks in 1 work order.

1. 1
2. 2
3. 3
4. 4
5. 5
6. 6
7. 7
8. 8
9. 9
10. 10
11. 11
12. 12Annual

Months from the schedule start. Download the tasks as CSV for a CMMS, or ask the MCP tool get_pm_schedule for dated visits.

Frequencies are ISO 8601 durations in the data (P3M = every 3 months).

Open questions

• HUD gives planning lives for US multifamily housing; the municipal rows are Ontario accounting lives. Neither is observed replacement data.

Know the answer? Send it with a source to [email protected].

Cite this

Citation

unfinished.one (2026). Emergency lighting unit, v0.4.0. https://unfinished.one/c/emergency-lighting/v/0.4.0

BibTeX

@misc{unfinished_emergency_lighting_0_4_0,
  title = {Emergency lighting unit},
  author = {{unfinished.one}},
  year = {2026},
  version = {0.4.0},
  url = {https://unfinished.one/c/emergency-lighting/v/0.4.0},
  note = {CC BY 4.0}
}

Licence CC BY 4.0 · How to cite · JSON · Versions: 0.4.0, 0.3.0, 0.2.0, 0.1.0