TrainWeb.org Facebook Page
Tube Prune Abbreviations Page

Underground-Symbol-Small.gif (1234 bytes)Tubeprune - The Tube Professionals' Rumour Network
Tubeprune is an unofficial web site for professional railway people working for London Underground and for those interested in the London Underground railway system.  To the Tubeprune Home Page


Abbreviations used on London Underground

London Underground has a long list of abbreviations and acronyms.  Here are some.

Rolling Stock

Letters Name Notes
A/C. Auto Coupler  
A: COS. Advert Light Cut-Out Switch On cant rail in car
Auto. Automatic  
AWIC. Audible Warning Isolating Cock  
     
B Battery On cant rail in car
BAR Brake Actuate Relay  
BCI Brake Control Interlock  
BIC Brake Isolating Cock On cant rail in car
BIR Brake Increase Relay  
BPA Brake Passenger Alarm  
BPM Brake Passenger Master  
BRV Brake Release Valve On cant rail in car
BSA-B2 Brake Safety Repeater Relays  
BTR Brake Timing Relay  
     
CIC Coupler Isolating Cock On cant rail in car
Com: COS Compressor Cut-Out Switch On cant rail in car
Com: G COS Compressor Governor Cut-Out Switch On cant rail in car
Com: G IC Compressor Governor Isolating Cock On cant rail in car
Con COS Control Cut-Out Switch On cant rail in car
Con G Control Governor On cant rail in car
CIC Control Isolating Cock On cant rail in car
CV Coupler Valve On cant rail in car
Cou: VIC Coupler Valve Isolating Cock On cant rail in car
CR Coasting Relay  
CS Control Switch  
CTBC Combined Traction Brake Controller  
     
DBVIC Drivers Brake Valve Isolating Cock  
DIC. Door Isolating Cock On cant rail in car
DM. Driving Motor Car  
DMVIC Deadman Valve Isolating Cock  
DV. Door Valve On cant rail in car
     
E:Cou. Emergency Coupling Adaptor On cant rail in car
EL Emergency Ladder On cant rail in car
EP Electro-pneumatic  
EPBIC Electro-pneumatic Brake Isolating Cock On cant rail in car
     
F Fuses  
FCOV. Flow Cut Off Valve  
FIC Field Injection Contactor  
FIS Fault Isolating Switch  
FIT Field Injection Transformer  
For. Forward  
     
GI-4 Grouping Contactors  
     
IL. Indicator Light On cant rail in car
int. Intermediate  
IS. Ice Scraper On cant rail in car
     
LBI-2. Line Breakers  
LSR. Local Supply Relay  
LWR. Load Weight Relay  
     
MAR. Motor Alternator Rectifier  
MB. Motor/Brake Switch  
MCB. Miniature Circuit Breaker  
MG. Motor Generator  
ML. Main Line  
MLFIC. Main Line Filtered Isolating Cock  
     
NDM. Non Driving Motor  
NR. Notching Relay  
NR (aux). Notching Relay Auxiliary  
     
OLB/EFR. Overload Braking/Earth Fault Relay  
OLM. Overload Motoring  
OPR. Off Proving Relay  
     
PB 1-2. Parallel - Braking Contactors  
PCM. Pneumatic Camshaft Mechanism  
PS. Position Switch  
PWR. Passenger Warning Relay  
     
RBR. Run Back Relay  
RC. Resistace Camshaft  
Rev. Reverser  
RPA. Rotary Pneumatic Accelerator  
RPR. Rheostatic Proving Relay  
RPR (Aux). Rheostatic Proving Relay Auxiliary Relay  
     
S. Sand On cant rail in car
SAPB. Spring Applied Parking Brake  
SCD. Short Circuiting Device On cant rail in car
SD. Series Diode  
ST. Special Trailer  
     
T. Trailer Car  
TC. Tripcock  
TCCOS. Traction Control Cut-Out Switch On cant rail in car
TOIC. Trip Cock Isolating Cock  
TCIS. Trip Cock Isolating Switch  
TCPS Tripcock Pressure Switch  
TCRC. Tripcock Resetting Cord  
TEP. Train Equipment Panel  
TL. Train Line  
TLIC. Train Line Isolating Cock  
TR. Test Relay  
TVIC. Triple Valve Isolating Cock On cant rail in car
     
UIC. Unit Isolating Cock  
UNDM. Uncoupling Non-Driving Motor Car  
UNCOU. Uncoupling Unit  
UT Uncoupling Trailer Car  
     
VA. Volt Amp relay  
VLCV. Variable Load Control Valve  
VLV. Variable Load Valve  
VS Vacuum Cleaner Socket On cant rail in car
     
WIC. Whistle Isolating Cock In cab
WSI-2. Wheelspin Relays  
WS (Aux). Wheelspin Auxiliary Relay  
WWIC. Window Wiper Isolating Cock  

 

To the Top of this Page  or to the Home Page                                                               This page upgraded 21 April 2003

Copyright Tubeprune 2001, 2002.   If you have comments or if you would like to use any part of this site for publishing or commercial reasons, please e-mail me