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The following list contains abbreviations that may appear in this publication.
A, amp
ampere
ABDC
after bottom dead center
AC
alternating current
A/D
analog to digital
ADC
analog to digital converter
adj.
adjust, adjustment
ADV
advertising dimensional drawing
AHWT
anticipatory high water temperature
AISI
American Iron and Steel Institute
ALOP
anticipatory low oil pressure
alt.
alternator
Al
aluminum
ANSI
American National Standards Institute
(formerly American Standards Association, ASA)
AO
anticipatory only
API
American Petroleum Institute
approx.
approximate, approximately
AR
as required, as requested
AS
as supplied, as stated, as suggested
ASE
American Society of Engineers
ASME
American Society of Mechanical Engineers
assy.
assembly
ASTM
American Society for Testing Materials
ATDC
after top dead center
ATS
automatic transfer switch
auto.
automatic
aux.
auxiliary
A/V
audiovisual
avg.
average
AVR
automatic voltage regulator
AWG
American Wire Gauge
AWM
appliance wiring material
bat.
battery
BBDC
before bottom dead center
BC
battery charger, battery charging
BCA
battery charging alternator
BCI
Battery Council International
BDC
before dead center
BHP
brake horsepower
blk.
black (paint color), block (engine)
blk. htr.
block heater
BMEP
brake mean effective pressure
bps
bits per second
br.
brass
BTDC
before top dead center
Btu
British thermal unit
Btu/min.
British thermal units per minute
C
Celsius, centigrade
cal.
calorie
CARB
California Air Resources Board
CB
circuit breaker
cc
cubic centimeter
CCA
cold cranking amps
ccw.
counterclockwise
CEC
Canadian Electrical Code
cert.
certificate, certification, certified
cfh
cubic feet per hour
cfm
cubic feet per minute
CG
center of gravity
CID
cubic inch displacement
CL
centerline
cm
centimeter
CMOS
complementary metal oxide substrate (semiconductor)
cogen.
cogeneration
com
communications (port)
TP-6208 4/03
Appendix A Abbreviations
coml
commercial
Coml/Rec Commercial/Recreational
conn.
connection
cont.
continued
CPVC
chlorinated polyvinyl chloride
crit.
critical
CRT
cathode ray tube
CSA
Canadian Standards Association
CT
current transformer
Cu
copper
cu. in.
cubic inch
cw.
clockwise
CWC
city water-cooled
cyl.
cylinder
D/A
digital to analog
DAC
digital to analog converter
dB
decibel
dBA
decibel (A weighted)
DC
direct current
DCR
direct current resistance
deg., °
degree
dept.
department
dia.
diameter
DI/EO
dual inlet/end outlet
DIN
Deutsches Institut fur Normung e. V.
(also Deutsche Industrie Normenausschuss)
DIP
dual inline package
DPDT
double-pole, double-throw
DPST
double-pole, single-throw
DS
disconnect switch
DVR
digital voltage regulator
E, emer.
emergency (power source)
EDI
electronic data interchange
EFR
emergency frequency relay
e.g.
for example (exempli gratia)
EG
electronic governor
EGSA
Electrical Generating Systems Association
EIA
Electronic Industries Association
EI/EO
end inlet/end outlet
EMI
electromagnetic interference
emiss.
emission
eng.
engine
EPA
Environmental Protection Agency
EPS
emergency power system
ER
emergency relay
ES
engineering special, engineered special
ESD
electrostatic discharge
est.
estimated
E-Stop
emergency stop
etc.
et cetera (and so forth)
exh.
exhaust
ext.
external
F
Fahrenheit, female
fglass.
fiberglass
FHM
flat head machine (screw)
fl. oz.
fluid ounce
flex.
flexible
freq.
frequency
FS
full scale
ft.
foot, feet
ft. lbs.
foot pounds (torque)
ft./min.
feet per minute
g
gram
ga.
gauge (meters, wire size)
gal.
gallon
Appendix
A-15
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