Page 52 - ENGINEERING

8.2 ANALYSIS OF DEFECTS DETECTED DURING USFD TESTING OF RAILS/WELDS
BETWEEN SC-WADI UP AND DN LINES.

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Testing Section UP/ GMT Frequency IMR/ OBS ctive Remarks
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Action taken
Description DN of testing IMR(W) (R) (W) (DFWO) (DFWR)
All are
once in 3
SC-VKB UP 19.89 0 15 29 Joggled fish Along with
months
plated NBC/GFC/NGF
C Rail testing
All are the following
once in 3 tests such as
VKB-WD UP 19.71 0 7 15 Joggled fish
months plated Winter
NBC/GFC/NGFC precaution
Rail testing testing, Test free
once in 3 All are rail
SC-VKB DN 17.01 0 13 12 Joggled fish
months testing,Switches
plated and Intensive
rail testings are
All are carried in the
once in 4
VKB-WD DN 14.03 0 35 61 Joggled fish Division.
months
plated
All are
once in 3
Flaw detected in SC-VKB UP 19.89 yrs 65 0 Joggled fish
1) Service weld plated
testing(Including
welds on high once in 3 All are
DFWR will be
banks,cuttings VKB-WD UP 19.71 yrs 28 0 Joggled fish replaced within
and curves) plated
2)New weld 3 months after it
is detected.
testing All are DFWR is
3) Fracture prone SC-VKB DN 17.01 once in 3 48 0 Joggled fish replaced.
locations yrs plated
4) All major
bridges and All are
approaches. once in 4
VKB-WD DN 14.03 114 0 Joggled fish
yrs
plated
Total 0 70 117 255 0