IEEE C37.121 · CSA
For IEEE C37.121, nrtl is CSA; standard title is Unit Substations - Requirements; laboratory is CSA Group Testing and Certification Inc; osha docket is OSHA-2006-0042; status is currently recognized, recorded from its source on 2026-10-01; source re-checked 2026-11-10.
- Test standard
- IEEE C37.121 verified
- Standard title
- Unit Substations - Requirements verified
- NRTL
- CSA
- Laboratory
- CSA Group Testing and Certification Inc.
- OSHA docket
- OSHA-2006-0042 verified
- Status
- currently recognized our reading
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
IEEE C37.121 | Unit Substations - Requirements |
— osha.gov, retrieved 2026-10-01
Where each value comes from
The value above is stated away from the sentence quoted with the answer, so the passage that states it is shown here too.
OSHA docket
Docket Number: OSHA-2006-0042
— all from osha.gov, retrieved 2026-10-01
Source
- osha.govhttps://www.osha.gov/nationally-recognized-testing-laboratory-program/csa