Page 452 - IRSEM_Main Book

19.8.7 Installation, Testing of other equipments & Cables

Installation & Testing shall be done in accordance with specification &
instructions applicable to each individual equipment:

(a) Train Detection: Track circuits, AFTC, Axle Counters as per Chapter 17 of
SEM.

(b) LC Gates as per Chapter 14 of SEM.

(c) Cables: All signalling cables shall be laid, Tested as per Chapter 15 of SEM.

Note: At least two cores of cable shall be provided between two ends of the yard

to cater for telephone communication for maintenance purposes in non RE areas.
Where the yard is extending over a large area, the location boxes may be grouped
and one socket may be provided in one of the location boxes in the group so that
telephone communication is conveniently available for co-ordination with the
cabin during maintenance or rectification of failures of various ground
equipments. Where such groups are situated in different directions from the
cabin, a separate pair of conductors shall be used for each direction connected to
the cabin. In RE area, provision shall be made for telephone communication
through a telecommunication cable if already available or a separate telecom
cable shall be laid for the purpose.

(d) Power Supply Arrangements: Power supply systems for Signalling
Installations shall be as per Chapter 16.

19.8.8 System integrity Testing (SIT): This is a complete testing involving both
Indoor & Outdoor signalling equipment for functional working & safety. To be
done in a new installation, at every interlocking alteration or periodically once
in five years.

(a) After the individual tests mentioned in previous paras for outdoor equipments
and Testing of Relay Interlocking/Electronic Interlocking as given in Chapter
21 of SEM have been carried out, the signalling installation as a whole
must be tested with detailed operational, functional and safety tests as per
approved Control Table/Route Chart and Signalling & Interlocking Plan.

(b) These tests shall be planned carefully with men, material, Tools, public
address system, Walkie-Talkie Sets, Transport vehicles & other logistics.
In a working installation, Non-interlocking/Disconnection duration shall be
reasonable and commensurate with yard complexity and to be decided in
consultation with Operating department and planned much in advance. All
required sanctions/approvals shall be ensured before hand.

(c) Requisite number of staff considered essential for carrying out such tests
shall be mobilized at site, briefed suitably as per planning made and
working protocols explained and deputed to concerned locations with
relevant wiring diagrams & Tools. They should be equipped with requisite
tools, meters, portable telephones and/or walkie talkie sets, so that they
are in contact with the official incharge of testing and other testing parties
and take such action as directed.

Chapter 19: Installation, Testing & Maintenance of Signalling Equipment Page 400 of 535