CRS , CST and PCE sanction

 Validity of CST sanction  is six months .Required when we are doing any changes in existing interlocking.e.g commissioning of BPAC

Validity of CRS and PCE sanction are same (01 year).

PCE sanction is required only for closing the LC gate.Earlier it was with CRS, now delegated to PCE.

ESP,SIP,SWRD,PD and SWR required to be attached with PCE sanction. 

CRS sanction is must when do any change in interlocking,e.g.any new line is opened. Validity of CRS sanction is 01 year. CRS permission is required in following cases.

a) Additions/extensions or alterations to the existing block, Signalling and interlocking installations

b) Change in Block, Signalling and Interlocking installations.

c) New stations temporary or permanent.

d) Interlocking of level crossings, catch siding and slip sidings etc.


CST Sanction 

CST Sanction required in following works

1) Provision of Telephone at already Manned level crossings.

2) Provision of electrical & mechanical lifting barrier including emergency interlocking arrangement at already Interlocked Level Crossings gates.

3) Interlocking of existing LC Gates within already existing Interlocked station yard by existing signals in the same or shifted location.

4) Provision of all categories of track circuits, axle counters including dual detection.

5) Replacement/ Modification of signalling assets without any change in the yard layout or signal interlocking scheme either in station or mid section LC Gates.

6) Replacement of Block instrument by any other type of instrument or provision of BPAC or Track circuiting using existing block equipment.

7) Replacement of block instrument without any change in the system of block working.

8) Providing electronic interlocking/panel interlocking/RRI in non passenger line section.

9) Changing from control panel to control terminal/ VDU in EI.

Application to CRS/ CSTE for sanction of work

1) For divisional level works applications for CRS shall be made by Sr.DSTE.

2) For Joint works or work by Railway 'PSU, the application for CRS sanction shall be signed by DRM.

3) When the work is executed by an Construction Organisation, the application shall be signed by Dy CSTE for Signalling works.For joint works, the application shall be signed by JAG officers of concerned departments executing the work.

In overhauling of Interlocking frame in Mechanical signalling, the caution order of speed restriction of 30 kmph will be imposed.

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