Switchgear Testing Reference

Data record tests.visual-and-mechanical-inspection.equipment.switch-mv-enclosed.maintenance

Verified 2026-11-02 Confidence: High

Visual and Mechanical Inspection is specified for metal-enclosed medium-voltage air switches in maintenance testing at clause 7.5.1.2.A of ANSI/NETA MTS-2023. The clause covers the physical and mechanical condition, anchorage, alignment, grounding and clearances, cleaning, blade alignment, blade penetration, travel stops, arc interrupter operation and mechanical operation, the fuse sizes and types against the drawings and studies, the expulsion-limiting devices and fuseholder support, bolted connections, the interlocking systems, the phase barriers, the indicating and control devices and lubrication, with as-found and as-left tests around the cleaning.

Value: metal-enclosed medium-voltage air switches

ProvenanceANSI/NETA MTS-2023 supports data record tests.visual-and-mechanical-inspection.equipment.switch-mv-enclosed.maintenance, which is cited on the entry Visual and Mechanical Inspection.SOURCEANSI/NETA MTS-2023ANSI/NETA MTS-2023Licensed standard, clause 7.5.1.2.ADATA RECORDtests.visual-and-mechanical-inspection.equipment.switch-mv-enclosed.maintenancetests.visual-and-mechani..Verified 2026-11-02ENTRYVisual and Mechanical InspectionVisual and Mechanical In..No revisions
Provenance. Where this record comes from and where it is used: the cited source, the record itself and the entry that cites it.
Provenance: the chain from source to entry.
StepItemDetail
SourceANSI/NETA MTS-2023Licensed standard, clause 7.5.1.2.A
Data recordtests.visual-and-mechanical-inspection.equipment.switch-mv-enclosed.maintenanceVerified 2026-11-02
EntryVisual and Mechanical InspectionNo revisions
Subject
Visual and Mechanical Inspection (Test methods)
Kind
Equipment fact
Source
ANSI/NETA MTS-2023, clause 7.5.1.2.A, Maintenance Testing Specifications for Electrical Power Equipment and Systems, NETA. Publisher page for ANSI/NETA MTS-2023Publisher information page
Also stated in
  • Stated independently by TM 5-684 / NAVFAC MO-200 / AFJMAN 32-1082, section 8-11.c, PDF page 105, printed 8-5, item (6) and its item (a) (29 November 1996).
    Read the reference passage

    8-11.c(6). Contacts

    "Contacts should be cleaned and adjusted in accordance with manufacturer's instructions. Modern switches are normally designed so that the contacts are self-cleaning, by virtue of the opening and closing action of the switch. After a switch remains in either position for a long time, it should be operated several times during a maintenance inspection. This operation will clean the contact surfaces. Operate only after getting clearance and after the circuit has been deenergized. (a) Do not use a coarse abrasive to clean contacts. If contact pitting is minor, smooth the surface with clean crocus cloth or as the manufacturer recommends."

    TM 5-684 / NAVFAC MO-200 / AFJMAN 32-1082, section 8-11.c, PDF page 105, printed 8-5, item (6) and its item (a), 29 November 1996. Agency copy of TM 5-684 / NAVFAC MO-200 / AFJMAN 32-1082

    The current standard governs; this passage is a public-domain description of the practice dated 29 November 1996.

History

Every recorded change to this data record, oldest first.
DateChange
2026-11-02created

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Cite the governing standard for the fact itself; cite this page as the finding aid.

"Data record tests.visual-and-mechanical-inspection.equipment.switch-mv-enclosed.maintenance." Switchgear Testing Reference. 2026-11-02. https://www.switchgeartestingreference.com/data/tests.visual-and-mechanical-inspection.equipment.switch-mv-enclosed.maintenance/.