unfinished.one

Uniformat D5010

Low-voltage switchgear

24 preventive maintenance tasks for low-voltage switchgear, from published sources. No source that meets our sourcing policy states a service life yet.

Also listed as Switchgear, low voltage, switchgear, main switchboard, MSB, switchboard

  • Maintenance only
  • Version 0.3.0 (permanent link)
  • Reviewed 2026-10-22

Service life

No service life yet. No published source that meets our sourcing policy states a life for this component, so we give none rather than guess. The maintenance tasks below are sourced. Know a public-domain or openly licensed source? Send it to [email protected].

Municipal lives for electrical (D50)

39 municipalities in Ontario, British Columbia and Alberta state a life for electrical as a whole, in 30 distinct tables: 10–50 years, median 20. 47 rows come from capital asset policies (accounting lives, used for amortization) and 7 from asset management plans (planning lives, used to forecast replacement). They describe the system rather than this component, and none is a measured life.

Median 20 yearsKingston: Electrical, 10 yearsGrey Highlands: Electrical, 15 yearsMeaford: Electrical, 15 yearsThe Blue Mountains: Electrical, 15 yearsLloydminster: Electrical, 20 yearsLloydminster: Electrical, 20 yearsComox Valley: Plumbing, HVAC, Electrical, 20 yearsCranbrook: Plumbing, HVAC, Electrical, 20 yearsParksville: Electrical, 20 yearsTelkwa: Plumbing, Fire protection, Electrical, 20 yearsAmherstburg: HVAC, Electrical, 20 yearsGrey Highlands: Electrical, 20 yearsGrey Highlands: Electrical, 20 yearsHuron: Electrical, 20 yearsHuron: Electrical, 20 yearsHuron: Electrical, 20 yearsHuron: Electrical, 20 yearsKenora: Electrical, 20 yearsLondon: Plumbing, HVAC, Electrical, 20 yearsMeaford: Electrical, 20 yearsMeaford: Electrical, 20 yearsMeaford: Emergency lighting unit, 20 yearsThe Blue Mountains: Electrical, 20 yearsThe Blue Mountains: Electrical, 20 yearsWelland: HVAC, Electrical, 20 yearsDuncan and North Cowichan: HVAC, Electrical, 25 yearsLantzville: Plumbing, HVAC, Electrical, 25 yearsTofino: HVAC, Electrical, 25 yearsBrantford: Electrical, 25 yearsBrantford: Electrical, 25 yearsGreater Napanee: HVAC, Electrical, 25 yearsKirkland Lake: HVAC, Electrical, 25 yearsRainy River: Plumbing, Electrical, 25 yearsRainy River: Plumbing, Electrical, 25 yearsThe Blue Mountains: Electrical, 25 yearsBrockton: HVAC, Electrical, 40 yearsGreater Madawaska and Quinte West: Electrical, 40 yearsSimcoe: Electrical, 40 yearsTrent Lakes: Electrical, 40 yearsMeaford: Electrical, 50 yearsFort St. James, Revelstoke and 3 more: Plumbing, Fire protection, Electrical, 15–20 yearsOkanagan-Similkameen: Plumbing, Fire protection, Electrical, 15–20 yearsSalmo: Plumbing, Fire protection, Electrical, 15–20 yearsVulcan County: HVAC, Electrical, 20–30 yearsBancroft, Centre Hastings and 2 more: Plumbing, Electrical, 25–30 years0102030405060

Years. Each dot is one stated life and each bar a stated range; equal values stack. Hollow marks are planning lives from asset management plans; filled marks are accounting lives from policies. The dashed line is the median. Policies that copy the same table count once.

All 45 stated lives
MunicipalityCoversYearsKindSource
KingstonElectrical10accountingp15 · 2016
Grey HighlandsElectrical15accountingp11 · 2026
MeafordElectrical15accountingp17 · 2020
The Blue MountainsElectrical15accountingp11 · 2019
Fort St. James, Revelstoke, Rossland, Sicamous, Tumbler Ridge · same tablePlumbing, Fire protection, Electrical15–20accountingp5, p9, p7, p9, p5 · 2010
Okanagan-SimilkameenPlumbing, Fire protection, Electrical15–20accountingp11 · 2023
SalmoPlumbing, Fire protection, Electrical15–20accountingp6 · 2016
LloydminsterElectrical20accountingp11 · 2023
LloydminsterElectrical20accountingp11 · 2023
Comox ValleyPlumbing, HVAC, Electrical20accountingp6 · 2010
CranbrookPlumbing, HVAC, Electrical20accountingp9 · 2010
ParksvilleElectrical20accountingp9 · 2023
TelkwaPlumbing, Fire protection, Electrical20accountingp8
AmherstburgHVAC, Electrical20accountingp8 · 2026
Grey HighlandsElectrical20accountingp11 · 2026
Grey HighlandsElectrical20accountingp11 · 2026
HuronElectrical20planningp42 · 2025
HuronElectrical20planningp57 · 2025
HuronElectrical20planningp68 · 2025
HuronElectrical20planningp77 · 2025
KenoraElectrical20accountingp15 · 2026
LondonPlumbing, HVAC, Electrical20accountingp2 · 2023
MeafordElectrical20accountingp17 · 2020
MeafordElectrical20accountingp17 · 2020
MeafordEmergency lighting unit20accountingp17 · 2020
The Blue MountainsElectrical20accountingp11 · 2019
The Blue MountainsElectrical20accountingp11 · 2019
WellandHVAC, Electrical20accountingp8 · 2021
Vulcan CountyHVAC, Electrical20–30accountingp5 · 2024
Duncan, North Cowichan · same tableHVAC, Electrical25accountingp17, p9 · 2011
LantzvillePlumbing, HVAC, Electrical25accountingp11 · 2019
TofinoHVAC, Electrical25accountingp12 · 2009
BrantfordElectrical25planningp10 · 2025
BrantfordElectrical25planningp10 · 2025
Greater NapaneeHVAC, Electrical25accountingp16 · 2012
Kirkland LakeHVAC, Electrical25accountingp10 · 2020
Rainy RiverPlumbing, Electrical25accountingp11 · 2010
Rainy RiverPlumbing, Electrical25planningp17 · 2026
The Blue MountainsElectrical25accountingp11 · 2019
Bancroft, Centre Hastings, Hastings Highlands, Wollaston · same tablePlumbing, Electrical25–30accountingp5, p4, p6, p5
BrocktonHVAC, Electrical40accountingp2 · 2009
Greater Madawaska, Quinte West · same tableElectrical40accountingp17, p38 · 2025
SimcoeElectrical40accountingp19 · 2025
Trent LakesElectrical40accountingp10 · 2009
MeafordElectrical50accountingp17 · 2020

Of 54 rows, 2 were compared with an image of their page; 52 were matched to their page automatically (the label and number appear in the page text). Follow the page link before relying on an automatically matched row. About the policies · All approved rows as JSON

Preventive maintenance

24 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.

Annual · 24 tasks

Source: TM 5-692-1 Maintenance of Mechanical and Electrical Equipment at Command, Control, Communications, Computer, Intelligence, Surveillance, and Reconnaissance (C4ISR) Facilities: Recommended Maintenance Practices, Table 21-1 Typical secondary distribution maintenance

TaskPage
Check warning signs are in placep173
Inspect enclosure for damage, openings and corrosionp173
Clear blocked air passagesp173
Investigate unusual odorsp173
Inspect electrical connections for degradation and tightnessp173
Inspect insulation for discolorationp173
Inspect equipment grounding conductors and connectionsp173
Check indicating lightsp173
Clean equipmentp173
Tighten electrical connectionsp173
Verify equipment groundingp173
Infrared scanp173
Overcurrent test critical-load molded-case breakersp174
Contact resistance test critical-load breakersp175
Operate each breaker by its handlep175
Measure and record neutral currentsp175
Perform harmonics analysisp175
Inspect barriers and shuttersp174
Test phase bus insulationp174
Inspect drawout contacts for wear and discolorationp174
Inspect, adjust and lubricate breaker linkagesp174
Test power breaker trip and close operationp174
Insulation resistance testp174
Calibrate protective devicesp175

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

Open questions

  • No service life yet: no published source that meets the sourcing policy states one. The maintenance tasks are sourced.
  • Some maintenance intervals come from TM 5-692-1, an Army manual for mission-critical (C4ISR) facilities; they may be tighter than typical commercial practice.

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

Cite this

Citation

unfinished.one (2026). Switchgear, low voltage, v0.3.0. https://unfinished.one/c/switchgear-lv/v/0.3.0

BibTeX

@misc{unfinished_switchgear_lv_0_3_0,
  title = {Switchgear, low voltage},
  author = {{unfinished.one}},
  year = {2026},
  version = {0.3.0},
  url = {https://unfinished.one/c/switchgear-lv/v/0.3.0},
  note = {CC BY 4.0}
}

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