Reference Source

IEEE C37.121

What is the laboratory for IEEE C37.121?

For IEEE C37.121, laboratory is UL LLC; standard title is Unit Substations-Requirements, verified against its source on 2026-09-17.

IEEE C37.121 | Unit Substations-Requirements |

— osha.gov, retrieved 2026-08-10

Laboratory
UL LLC
Standard number
IEEE C37.121 verified
Standard title
Unit Substations-Requirements verified
Sourceosha.gov
Verified
Review by
DatasetWhich OSHA NRTL is recognized for which test standard: all 21 labs' scopes of recognition, cross-referenced

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