Page 551 - IRSEM_Main Book

Para No: 22.3.8 Annexure: 22-A3

Clearances for Signals for High Rise OHE
(For Running Double Stack Container & Three Tier Car)

(Extract of Design Handout for High Rise OHE Document No: TI/designs/OHE/2014/00001

(Rev-1) issued by Traction Installation Directorate/RDSO)

7.5.1 COLOUR LIGHT SIGNALS LOCATED OUTSIDE ALL TRACKS

(a) COLOUR LIGHT SIGNALS WITHOUT ROUTE INDICATORS

(i) Where no approach Signal is provided

The minimum setting distance of structure before the signal shall be 3.55, 3.40, 3.35, 3.20 &
3.05 m for distance upto 80 m, beyond & up to 110 m, beyond & upto 190 m, beyond & upto
270 m and beyond & up to 400 m respectively.

(ii) Where approach Signal is provided and for Signals other than Distant Signals

The minimum setting distance of structures before the Signal should be 3.55, 3.40, 3.25, 3.10
and 3.05 m for distance upto 50 m, beyond & upto 70 m, beyond & upto 115 m, beyond &
upto 160 m and beyond & upto 240 m respectively.

(b) COLOUR LIGHT SIGNALS WITH ROUTE INDICATORS

(i) With Horizontal Route Indicator

The minimum setting distance of structure before the Signal shall be 4.02, 3.80, 3.55, 3.35,
3.20 and 3.05 m for distance upto 60 m, beyond & upto 125 m, beyond & upto 170 m,
beyond & upto 215 m and beyond & upto 250 m and beyond and upto 310 m respectively.

(ii) With other than Horizontal Route Indicator

The minimum setting distance of structures before the Signals shall be 3.80, 3.55, 3.35, 3.20
and 3.05 m for distance upto 70 m, beyond & upto 130 m, beyond & upto 170 m and beyond
& upto 215 m and beyond & upto 280 m respectively.

Setting distance may be reduced for Starter Signals of loop lines and yard lines. The setting
distance can be reduced in special cases, conforming to Figures 6 to 9 of Revised RDSO
Drawing No. ETI/OHE/G/00112, Revision ‘D’ or latest.

Chapter 22: Requirements Of Signalling In 25 KV AC Electrified Area Page 494 of 535