Railway Signalling alphabets Abbreviations Equipment | Code for Designation of Colours In Railway Signalling

Basic Concepts of Railway Signalling Railway Signalling alphabets Abbreviations Equipment

Railway Signalling alphabets Abbreviations Equipment

Signalling Equipments Meaning of alphabets used to denote Signalling Information

A – Approach, Automatic. Near end point.
B – Block positive energy, Far-end point.
C – CONTACT. Center, Check.

D – CLEAR, GREEN
E – EARTH, LAMP
F – FRONT, FUSE
G – SIGNAL, GATE

H – CAUTION YELLOW.
HH – ATTENTION, DOUBLE YELLOW
I – CURRENT,

J – TIME DELAYED ACTION
K – INDICATION
L – LOCKING
M – MOTOR, MARKER

N – NORMAL, NEGATIVE
P – PUSH, REPEATER, POWER.
Q – SECONDARY, COIL.

R – RELAY, RED, RIGHT, REVERSE.
S – STICK
T – TRACK, TIME, TERMINAL

U – ROUTE, UNIT.
W – POINT, SWITCH
X – BELL, BUZZER, CROSSING, INTERLOCKING
Y – SLOT, RELEASE
Z – USES FOR ANY SPL TERM.

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Code for Designation of Colours In Railway Signalling

COLOUR –  LETTER CODE
Black – BK
Blue (Including Light Blue) – BU
Brown – BN
Gold – GD
Green – GN

Grey (Slate) – GY
Orange – OG
Pink – PK
Red – RD
Silver – SR

Turquoise – TQ
Violet (Purple) – VT
White – WH
Yellow – YE
Green and Yellow – GNYE

 

Railway Signalling alphabets Abbreviations Equipment |Symbols for Signalling Circuit Diagrams | Code for Designation of Colours In Railway Signalling

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