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Surge protective device (SPD) maintenance checklists

Surge protective device (SPD) maintenance checklists for the quarterly and annual rounds: 2 free lists, 26 items and 19 photo requirements, each item naming what to look for and the photo evidence it needs. Work is commonly verified against NEC (NFPA 70); the edition in force is the AHJ's call on each project.

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The surge protective device (SPD) rounds

Surge protective device (SPD) QuarterlySurge protective device (SPD) quarterly maintenance checklistStatus lights read per phase, alarm confirmed and connections checked for heat on the quarterly round13 items9 photosSurge protective device (SPD) AnnualSurge protective device (SPD) annual maintenance checklistEvery phase indicator re-verified against the panel and all accessible connections proven tight for the year13 items10 photos

Where each walk sits in the schedule

  1. 01quarterly

    Surge protective device (SPD) quarterly maintenance checklist

    Every quarter, walked with the panel it protects since a spent SPD looks identical to a healthy one until someone reads the indicators.

    Run by: The electrician or maintenance tech on the quarterly panel round.

  2. 02annual

    Surge protective device (SPD) annual maintenance checklist

    Once a year, folded into the annual panel and breaker service so the SPD connections are checked while the enclosure is already open.

    Run by: The electrician on the annual electrical service, with the panel de-energized where the scope requires.

What most often fails on a surge protective device (SPD)

  • One green light on the face taken as 'good' while a per-phase indicator has already gone dark and only that phase is now unprotected.
  • A module that has reached end of life left in place because it still shows a light, when the light only means the device is still connected, not still protecting.
  • Long, looped conductors between the breaker and the SPD left as installed, so the device can't clamp fast enough to matter.
  • Indicators glanced at with the cover on all year, so a phase that dropped protection months ago is only caught now, if at all.
  • Terminal lugs assumed tight because nothing looked wrong, when an annual re-torque would have caught the connection that was slowly backing off.

Verified against

Families only, never clause numbers. Adoption varies by jurisdiction; confirm the edition your authority having jurisdiction enforces before you run a walk against it.

Common questions

5 answers

Which surge protective device (SPD) maintenance rounds do these checklists cover?
Surge protective device (SPD) quarterly maintenance checklist (quarterly): Every quarter, walked with the panel it protects since a spent SPD looks identical to a healthy one until someone reads the indicators. Surge protective device (SPD) annual maintenance checklist (annual): Once a year, folded into the annual panel and breaker service so the SPD connections are checked while the enclosure is already open.
Who runs the surge protective device (SPD) maintenance round?
The electrician or maintenance tech on the quarterly panel round. The electrician on the annual electrical service, with the panel de-energized where the scope requires.
What most often fails on a surge protective device (SPD)?
One green light on the face taken as 'good' while a per-phase indicator has already gone dark and only that phase is now unprotected. A module that has reached end of life left in place because it still shows a light, when the light only means the device is still connected, not still protecting. Long, looped conductors between the breaker and the SPD left as installed, so the device can't clamp fast enough to matter. Indicators glanced at with the cover on all year, so a phase that dropped protection months ago is only caught now, if at all.
Which standards is surge protective device (SPD) work verified against?
NEC (NFPA 70), published by the National Fire Protection Association. Adoption varies by jurisdiction. Confirm the edition your authority having jurisdiction enforces before you run a walk against it.
Can I run these checklists in RTI?
Yes. Start a free RTI workspace and load any of the 2 lists (26 items in total). The Photo Gate holds the submit button until every mandatory item is answered and its photos are attached, and approved inspections roll into a branded turnover package with a tamper evident audit trail.

Run these lists with the Photo Gate.

Tag one area, scan it, and the submit stays locked until the photos exist.

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