Page 47 - GM E-BOOKLET 2022

UP/DN OBS
SECTION IMR IMRW OBSW DFWR DFWN DFWO TOTAL
/SL Rail

BDCR-RUSG SL 0 0 0 0 0 0 02 2

PDPL-NZB SL 0 0 2 0 0 0 0 2
KHNP-GR SL 0 0 1 2 0 0 0 3

PGDP-NDKD SL 0 0 0 0 0 0 3 3
TOTAL 62 5 1244 110 4 4 881 2310

1.6 TESTING OF SWITHCHES:

1. As per C.S.No.5 of USFD Manual testing USFD testing of all the switches is
being done as per the frequency of Rail testing. During the testing, 2 IMRs
have been identified and tongue rails are replaced with new one
immediately, thus averting major failure.
2. If OBS/OBSW is detected within 4 meters of rail length then it is treated as
IMR (C.S.No 3) and necessary action is taken. As on Oct 2022 there was 11
IMRs, in SC division and all are replaced.
3. If OBS/OBSW is on Major Bridges and approaches 100m either side then it is
treated as IMR (C.S.No 3) and necessary action is taken. As on Oct 2022

there was 31 IMRs, in SC division, and all are replaced.
4. SC Division has been instructed by HQ to purchase 12 nos. of B-scan SRT
machines with 9 channels for USFD testing of track where the speed is 130
kmph. The indent is under process.

1.1.4. COMPARISON OF RAIL/WELD FAILURES FOR THE LAST 3 YRS
(As on 31.10.2022)

Special watch on the welders having DGR>1.0% is being done to minimize
the consequences of failures. Performance has been improved by 27.03%
over the last year (2021-22).

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