Page 193 - IRSEM_Main Book

Chapter 8: Drawings & Specifications

Section 1: Plans for New and Working Installations

8.1.1 Preparation - General Procedure

(a) All ‘Signalling & Interlocking Plans’ (SIP) shall be prepared for Station,
Automatic Block Section and LC Gate as required in accordance with the
instructions issued by the Principal Chief Signal and Telecommunication
Engineer.

(b) The names of the junction or terminal stations should be noted on plans on
both sides, that on the left-hand side being the one from which the kilometer
progressively increases along with direction of traffic which shall be based
on engineering scaled plan (ESP). On receipt of ESP, the same shall be
checked for relevant details as per Annexure: 8-A2. The names of the
adjacent block stations and midsection sidings/interlocked level crossing
gates/IBSs connected with concerned stations should also be indicated on
the plans as also their respective distances from the centre line of the
station for which the plan is prepared. Communication to mid-section
Manned LC gates shall be shown on the plan of the station to which such
communication is established.

(c) Standard drawings shall not be deviated and Typical drawings shall not be
issued without the specific approval of the Principal Chief Signal and
Telecommunication Engineer.

(d) The Signal and Telecommunication Engineer incharge should ensure that
drawings submitted with an estimate for a work are complete and include all
information necessary.

(i) For the proper understanding of the scheme, relevant notes are being
written on the drawings.

(ii) For proper check of the design and estimate.

(e) When a part of the work has to be done to a standard plan or to an existing
drawing, the fact should be stated. Such drawings need not be reproduced.
If a part of the information necessary has to be supplied by another
department, the officer incharge should obtain and incorporate the details
on the drawing.

(f) North direction should be shown on every signalling interlocking plan.

(g) All drawings should be quoted by number in their proper place in the
estimate and in the covering letter accompanying the estimate.

Chapter 8: Drawings & Specifications Page 160 of 535