Page 197 - IRSEM_Main Book

(d) Version Update

(i) If changes are made in some of the sheets in signal interlocking circuit
drawings, rest of the sheets are not required to be versioned upwards.
However, version of modified sheets and all index sheets will be
versioned upwards.

(ii) It is not necessary to change version of other document/drawing types
when one document type undergoes changes and version update. For
example, if changes are made to track bonding diagrams, version will
be upgraded only to track bonding diagrams.

(iii) A register shall be maintained to keep track of versions for all document
types for a signalling installation.

(iv) Each Drawing shall bear the current version in the bottom right hand
corner.

(e) If more than one sheet is used for a particular work, each must be
distinguished by the sheet number as indicated in Para 8.1.3(e) immediately
following the drawing number. The title may be placed below the number. If
the drawing cancels the previous one, a note to this effect and the number
of the cancelled drawing should be recorded at the right hand top corner of
the drawing.

(f) Every plan/drawing/circuits should bear in small letters at the lower left hand
corner, the name and initials with designation of the JE/SSE(D&D) who
prepared and officials who checked & approved the plan/drawings/circuits.
If plan/drawing/circuits are prepared by contractor, then Contractor's designer
name/designation/license number with their initials shall be ensured.

(g) All signatures in tracings should be in indelible ink. All signature should be
dated with date month and year. If feasible, plans/drawings/circuits may be
digitally signed.

Chapter 8: Drawings & Specifications Page 164 of 535