Page 593 - IRSEM_Main Book

S No Term Description/Meaning in SEM Relevant paras
A short section of Insulated Dead over-head equipment which separates the sectors fed by 14.2.2(b), 18.12.1 (a)
Neutral two adjacent substations which are connected to different phases.
100
Section (Ref: ACTM Vol-II Annexure –I.2.12 & 16.0)
Note: It has no power supply to drive Electric locomotive engine.
2.2.1(c), 3.2.2(b),
101 Night Means from sunset to sunrise.
7.4.5(b), 12.5.5(b)
3.1.3(b), 12.14.5,
It`s cognate expressions includes a train, vehicle or obstacle on or fouling a line, or any
102 Obstruction 19.3.5, 19.3.6(a),
condition which is dangerous to trains.
19.4.1(b), 19.4.6
103 Off Position Means any position other than the `ON' position of a signal.
3.8.4(c), 7.1.18,
104 On Position Means the most restrictive position of a signal.
7.6.1(b), 19.8.9
On-Board 13.1.5, 13.2.4 (c),
The part (software and/or hardware) of the ATP system located in Locomotive, which fulfills
105 Equipment 13.1.6,13.1.8,
the approved ATP specification.
(OBE) 13.2.1,13.2.5(c)
8.1.8,13.4.3(a),
Overhead Means the electrical conductors over the tracks together with their associated fittings,
16.2.1(a)(b), 17.5.6(e),
106 Equipment insulators and other attachments by means of which they are suspended and registered in 22.1.2(a), 22.1.3,
(OHE) position for the purpose of electric traction.
22.3.1, 22.3.4(a)
Passenger Means a train intended solely or mainly for the carriage of passengers and other coaching 9.2.1, 13.4.2(c),
107
Train traffic, and includes a troop train.
7.1.15(d),13.1.5 (b),
Permitted The speed limit at which a train is allowed to proceed without warning and/or intervention
108 13.2.4(a), 13.2.5 (i),
Speed from the onboard equipment.
13.4.5
Point And Trap Are not signals, but are appliances fitted to and working with points to indicate by day or by 12.13.2(a)
109
Indicators night the position in which the points are set.
Position Light
110 A fixed signal in which the indications are given by the position of two or more lights. 7.1.19(b)
Signal

Annexure: G4: Glossary of Technical Terms for Signal Engineering Manual Page 524 of 535