Electrical Abbreviations and Acronyms

1. N.S.O.P.
   Not Shown On Plan
2. bbl/cd
   Barrels Per Calendar Day
3. AIR COND
   Air Conditioning
4. INTLK
   Interlock
5. N/0
   Normally Open
6. RM/MS&C
   Control
7. BOT P
   Bottom of Pipe
8. CKT BRKR
   Circuit Breaker
9. DEG C
   Degrees Celsius
10. EXH FN
    Exhaust Fan
11. F METER
    Flowmeter
12. INV EL
    Invert Elevation
13. C VALUE
    thermal conductance
14. NAMX
    New York Mercantile Exchange
15. A.G.A
    American Gas Association
16. P&IDs
    Piping and Instrument Diagrams
17. USVs
    Underwater Safety Valves
18. r-f
    Radio Frequency
19. A.B.S.
    American Bureau of Shipping
20. ACHX
    Air-Cooled Heat Exchanger

Last updated: May 24, 2020 — Total entries: 4,130