S&T Inspection Checklist on Solapur division:

Station: Date:

Sr. Item to be checked Observations

No.
Relay room

1. Relay room double locking arrangement

(Godrej locks) to be ensured. Both the locks
and concerned key should be painted with
colour code. S&T-Green, Optg- Red.
2. Data logger SMS must be ensured for relay
room opening and closing. The relay room
opening/closing to be wired at contact no. 1 of
datalogger.
3. No false ceiling in the relay room. No wooden
items present in the relay room.
4. No loose wires to be kept in relay room.
5. Dressing of cables and wires to be proper.
6. Rubber mate is available at the CT racks.
7. Spares in the relay room, if kept, should be
properly in arranged way. List of spares is
made and pasted at appropriate place in the
relay room.
8. Cable entry or any other entry holes in the
relay room is sealed properly to ensure no
rodent entry in the relay room.
9. No leakage and seepage in the relay room. If
any leakage and seepage is there then same
to be get attended on priority by IOW staff.
10. Condition of soldering on the Tag blocks. Total
number of tag blocks-
11. All the relays, timers and BPR are in sealed
conditions. All tag block covers are available.
13. Vital relays are marked with zebra painting.
Vital relays are not due for MLR.
14. List of vital relays and vital fuses is made and
 pasted in the relay room for easy
identification during the failures.
15. All the stand by fuse alarm boxes are in
working condition. During inspection sample
check to be done. Stand by fuse alarm PF
contacts are taken in Datalogger and SMS are
generating.
16. Proper description is available for CT rack,
fuses, relays etc. CT rack plan is available at
the site. Sample check to be done for gear
correspondence.
17. Approved circuit diagram / Interface diagram
is available in the relay room.
18. Updated Bit charts in case of EI are pasted in
the EI cabinet itself.
19. All the AC are working properly with auto
changeover facility. AC temp is set to -------
Whenever relay room is opened the working
position ACs to be noted with signature in one
separate copy. The same copy to be kept in
the relay room itself.
20. BPR are not due for POH. The last date for BPR
POH-------
21. Earth bus bar is in good conditions and all the
connections are proper. No loose connection
or dry soldered condition. The value of earth
bus bar --------- Also, earth value and Date of
earth measurement to be painted properly.
22. Datalogger supply is taken from IPS and
separate battery backup is provided. Battery
on load is being checked in every data logger
AMC visit. Voltage and current to be recorded.
23. Cable entry behind the CT racks is properly
closed and concreting is done.
24. In case of PI & RRI, test board is available for
checking during failures.
25. In case of EI, OC wise yard segregation to be
pasted in different colour practice.
26. EI system changeover, system failure (Main or
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 standby), OC failure are being monitored
through datalogger.
27. All the cable trays are provided with proper
nomenclature.
28. Unused spare relay bases to be covered with
Bopp tap to avoid any dust entry.
29. Cable armour to be earthed properly and
soldered.
30. All windows are closing properly without any
gap. Relay room door closing is proper. There
is no gap in the bottom after door closing. If
gap is there then door guard to be provided.
31. Requirement of painting in the relay room.
Power room

1. In power room, all the program switch cover

should be available. Program switch wiring
diagram is pasted at the concerned program
switch.
2. Rubber mate to be available in the power
room.
3. DOD register & changeover testing register to
be kept in power room.
4. DOD to be done for minimum 2 hrs and
changeover testing to be done for minimum
30 minutes.
5. DOD of spare battery cells is being done and
parameters are being noted.
6. DOD of the IPS battery is being taken as per
schedule. Condition of cells during last DOD.
No of cells below 1.90 volts during last DOD.
7. All the alarms of IPS are in working condition.
Indications and buzzers appearing on SM
panel. Also, data logger sms for the same to
be ensured.
8. Power audit, power room diagram, IPS block
diagram and Earthing diagram must be
present in the power room.

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9. IPS Inverter 1 to Inverter 2 to CVT changeover
and vice versa to be functional without fail.
Inverter output voltage after changeover ------
10. All the SMR and DC-DC converters to be in
working condition. Load sharing for these
should be checked. SMR on load rotation chart
should be available.
11. Spare transformers rotary switch is kept at
OFF position and working properly. Fuses of
the spare transformer is not defective. Staff
counseling to check this during every AMC
visit.
12. Proper description of power supply bus bars,
power supply rack, DC-DC converters,
Inverters, Transformers, CVTs, program
switches, Discrete power supply equipments is
available.
13. Exhaust fans in power room working properly.
Auto change over where provided should be
working properly.
14. All SPDs should be in working condition as per
indications available. PF contacts of SPDs are
taken in data logger.
15. LT panel wiring diagram is available. Also,
“manual changeover of supplies” chart is
available inside LT panel.
16. Hand gloves to be kept in the LT panel.
17. Spare empty slots should be covered with
dummy plates in the IPS.
18. All the DPM of IPS must show exact voltages.
19. Capacity of the fuse in the IPS SPD box and in
the CLS panel.
20. Earthing connections should be proper. Also,
earth value & date of earth measurement to
be written on earth bus bar.
21. Power segregation is provided for Dual
detection BPAC. The description of the bus bar
should be proper.
22. The power supply indication panel should
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 show proper voltage and frequency values.
Description to be done on it.
23. The Neutral to Earth voltage (VN-E) should be
checked. It should be less than 3 volts.
24. The auto change over system where provided
should be working properly and its working
should be monitored through datalogger.
25. No defective modules are present at site.
Proper entry of any failure or defective
modules along with time details to be kept.
26. DOI of the IPS battery should be painted
properly.
27. DG testing is being done properly by taking on
load whereas applicable. Any issue with DG.
28. Any released DG set available at the site?
Working or not?
29. All the indications provided on CLS panel is
working properly.
30. Auto changeover of supplies in CLS panel in
working properly.
31. DG set battery 12V, 65AH is available and
working properly.
Panel room
1. Tag block covers are provided in the operating
panel. Condition of tag blocks to be checked
for any possible dry solders.
2. VDU to VDU changeover or VDU to panel
changeover is being done and register is
maintained for the same. Periodicity of
changeover………
3. Block instruments are not due for POH. Last
date of POH …….
4. Panel NCR is working properly.
5. SR buzzer is in working condition. Switch
provided for acknowledging SR buzzer ??
6. The emergency operation buttons which are
supposed to be sealed (e.g., EUYN, EWN)
should be in sealed condition.

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7. Panel testing (SIT) date to be painted on the
Panel. Panel testing date must not be due. It is
to be done every 5 years.
8. Deficiencies noticed in the last panel testing
are attended. Panel testing certificate is
available at site.
9. EUYN cancellation to be done with proper
memo. Proper accountal of every EUYN
cancellation to be kept.
10. For every failure it should be ensured that
proper procedure is being followed i.e., failure
memo then DCM then after put right RCM.
11. No SI remarks pending in the SFR register.
Failure summary & classification of every
month to be made. Overall summary to be
pasted on the front side of SFR.
12. Proper counter testing is being carried out
every month as per schedule. Every time
different gear should be tested instead of
testing same gear.
13. Block instruments to be double locked and
sealed. Block opening with all possible
combination of keys to be checked to ensure
integrity of block instrument locking.
14. Block filters negative terminals are painted
with red color.
15. All the phones, VHF, Voice logger if any etc. is
working properly.
16. CH box in the panel room to be sealed and
locked. Description to be written on CH box
properly.
17. Fire alarm control panel is in working
condition.
18. Joint Point and Crossing register is maintained
properly. All the noticed deficiencies of joint
inspection are being attended timely. TWS
joint inspection format to be followed for TWS
points. Proper signature after inspection and
compliance to be ensured.
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19. SSD joint inspection is being done monthly
and record is maintained in the JE/ESM room.
Proper signature after inspection and
compliance to be ensured.
20. Joint track circuit & joint track bonding
inspection are being done as per schedule and
deficiencies are being attended in timely
manner. Proper signature after inspection and
compliance to be ensured.
21. Block phone testing. Block phone in working
condition. In case of LC gates, Gate phone is
in working condition.
22. ELD is working normal. ELD register is
maintained and it is being monitored through
data logger. Value of ELD in case of
abnormality --------
23. BY make ELD readings to be taken properly.
Total/Positive/Negative/Leakage. Leakage
should be between 0-5 volts.
24. BPAC dual detection indications are available
on the VDU and panel.
25. BPAC Reset box description should be proper.
Indication and display of reset box are proper.
26. Block instrument key to be taken only under
disconnection and proper entry to be made.
Maintenance card must be available in the
Block instrument.
27. System Fail Emergency operation in case of EI
is being tested as per schedule.
28. Codal life of block instrument and BPR is not
completed. Date of mfg. of Block and BPR.
29. Station description on Block instruments like
station from…… and station to……. Should be
available.
30. A class Earthing is provided with Counter.
31. Relay room opening register. Relay
room opening summary to be made.
More than 2 hours cases to be

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 mentioned separately in summary form.
Data logger
1. Relay room door monitoring contact should be
at no. 1 contact in datalogger. If not then
same to be shifted and checked for SMS
generation.
2. Earthing connection of datalogger are proper
and intact.
3. Datalogger batteries are provided or not. If
provided then battery on load to be checked
by switching OFF Data logger DC-DC module.
Take reading of all cells and record. Do not
forget to switch ON the module. DOI of
datalogger and battery should be painted.
4. Configuration of data logger. No of DC-DC
modules provided for Datalogger.
5. NMDL software are updated one at site and
test room. Simulation, reports, track off are
correct as per SIP and working properly both
at site and test room.
6. Data logger validation record is available at
the site and is jointly signed with data logger
engineer. Date of last validation done. Both
digital and analog contacts are validated.
7. Data logger PC timing is matching with real
time clock.
8. Any recent modification/alteration done in
yard layout. If so then it shall be updated in
simulation of test room and at site.
9. Daily exception report is being generated and
saved with proper remarks.
10. Datalogger printer is working properly.
11. All the indications are available on the
datalogger PC like SPD Failure, Power supply
related indications, OC failure, VCOR/FCOR
indication, Vital relay indications, Relay room
open/Close etc.
12. Datalogger SMS are being generated for

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 various faults like fire alarm, fuse alarm, ELD,
Power supply failures etc.
Documents

1. All the approved diagrams like SIP, RSP,

STLT/RCC, Circuit diagram, Interface Circuit,
Panel diagram, VDU layout, CCP, Cable route
plan, CT rack particular, Location particular,
contact analysis chart, Fuse alarm validation,
Datalogger contact chart, EI bit chart etc. are
available at the site.
2. For EI installation, FAT certificate, SAT
certificate, OEM certificate, HQ approval for
final checksum, TAN, TSSA should be available
at the site.
3. All the maintenance registers should be
properly made and updated.
4. Properly filled Pre-commissioning checklists
for EI, BPAC, IPS, DAC, UFSBI, ELD, Fuse
alarm, Datalogger, Fire alarm etc. to be
available at site.
5. Last panel testing deficiencies detail and its
attention status is available at the site.
6. Safety certificate of last alteration done
should be available.
7. OEM manuals of EI, IPS, DAC, UFSBI, ELD, Fire
alarm, Fuse alarm etc. should be available at
site.
8. AMC record of the Datalogger, IPS and EI to be
maintained properly.
9. Quarterly joint Signal Sighting record should
be available.
10. List of spare cards, relays etc. available at the
site should be made.
11. Quarterly Joint fire audit report to be
available.
12. Implantation register jointly signed with PWI
should be available.

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OFC/Telecom Room
1. Telecom CT rack description is available and
CT rack plan is also available.
2. Joint testing of section Quad with Signal staff.
Changeover testing of OFC and Quad used for
BPAC media.
3. Monitoring of SMPS power plant in datalogger.
DOD is being taken properly. Record is
maintained properly.
4. DOI of Power plant battery set to be painted.
Rotation chart of SMR to be made and pasted.
5. Linker testing, Media changeover testing to be
done jointly by Signal and Telecom monthly.
6. PF contact of Linker and Quad cable ELD is
taken in the datalogger. SMS are being
generated for the same.
7. Quad cable allocation chart should be
available.
8. Quad cable joint meggering report with
Signalling staff should be available.
9. Joint quad cable and OFC parameter testing to
be carried as per schedule.
10. Earth value of the telecom Hut & Equipments
…. Value of Earth to be painted along with DOI
& DOT.
11. Console rack, COA rack and other equipment
wiring must be properly laced.
12. Position of cable joints with proper chainage
should be available.
13. EC socket testing is being done as per
schedule.
Cables
1. Cable armour earthing is done in locations and
at CT racks.
2. Cable meggering is being done as per
prescribed schedule. Summary is made. Last
meggering deficiencies are attended or
pending.

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3. Tag on faulty conductors. Relay room to last
location spare conductors’ identification and
tags.
4. ELD is provided to all the bus bars. Working of
ELD and daily monitoring. Contact taken in
datalogger.
5. ELD Reference values are set as per the
manual.
6. Corresponding changes due to faulty cables
are reflected in the CT rack plan, CT rack and
cable meggering records.
Fire Extinguisher & Fire Alarm System
1. The Fire Extinguishers (only CO2 type no DCP
type) to be kept at each S&T installation as
per latest HQ policy.
2. The Fire extinguishers must not be due for
refilling. The weight along with last date of
weighing, due date of weighing and signature
must be pasted on painted on it.
3. All the sensors of fire alarm system must be in
working condition. The fire alarm activation to
be taken in Data logger from PF contacts
provided in the fire alarm control panel.
4. Fire alarm sensors numbering to be done and
their testing is being carried out as per HQ
guidelines. Sensors in relay room, panel room,
power room, OFC room to be checked.
5. Fire alarm testing register is maintained
properly sensor wise.
6. Smoke gun should be available for fire alarm
testing.
7. Quarterly joint fire audit is being carried out.
Deficiency of the last audit is attended.
Tools & Safety items
1. Proper insulated tools must be available so
that these are suitable for use in RE area.
2. Tools like Megger, Earth Tester, Clamp meter,
Multimeter, TSR, Fire alarm testing kit,

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 Obstruction test gauge, Hydrometer etc.
should be available.
Note: Metallic measuring tap should be
avoided for measurement in the RE area.
3. Staff should be in proper uniform with safety
jackets and safety shoes.
Outdoor
1. Signals

1. Cut in relays spare contacts are made parallel.

2. Cut in relays and LEDs are not due for
replacement.
3. Signal implantation to be written on signal
base. Black on white background for normal
implantation and red on white background for
infringing signal. Implantation of signals
infringing SOD ------------
4. Calling on board is available for Home signals.
5. Signal earthing is connected properly. If any
wire mesh is provided then it should be
connected directly with earth.
6. Working of dual talk back at IBS.
7. Door of signal units are properly locked.
8. Proper termination of tail cable at Signal unit
and description is written properly.
9. Signal number plate and boards are in good
condition. Stop boards, BSLB/SLB are provided
as per SIP.
10. Arrow marker is available on the RH signals
(Red arrow on white background) and all the
shunt signals (white arrow on red
background).
11. Cross mark is available at the back side of
signal unit and route drum & arm.
12. Yellow retroreflective bands are provided on
the Distant signals.
2. LC gates

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1. All the indications on gate panel are available
including gate boom closing, road signals.
2. Gate phones are working properly.
3. Boom lights (if available), road signals are
functional. Hooter to be present on both side
of the gate.
4. Boom locking and approach locking are
effective.
5. Gate boom height when closed is in
prescribed range. (0.8m to 1.0 m).
Boom Height DN -
Boom Height UP -
6. Sliding boom testing is being done as per JPO.
7. Sliding boom is provided with yellow
retroreflective strips. Black band of the sliding
boom may be provided with red retroreflective
bands for better visibility.
8. All Emergency signal put back switch are
working properly and in sealed condition.
9. Direct SB locking and CH Interlocking is
provided.
10. Retroreflective sheet is provided on Gate
boom, stop board and Sliding boom.
11. Solenoid locking (BLR) is in circuit or not.
12. Boom dashing frequency.
13. On sliding boom lock post, description for keys
are written properly.
14. Stand type stop board is available for Sliding
boom.
15. Limit switch contacts are made parallel.
16. Gate pedestal and lock pedestal are locked
properly.
17. In case of traffic gate, the alteration in slot
circuit as per HQ policy is carried out.
18. In case of WSL gate, slot indications are
working properly.
19. GWR is available at the gate.
20. In case of OSL gate, IPS room, relay room,

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 panel room and documents to be checked as
per the items mentioned in these heads.
21. Speed breakers and zebra painting is
available.
22. Last panel testing date. Date of
commissioning and panel testing to be
painted on the panel.
23. Proper description is written on the panel.
3. Track circuits

1. For QTA2 tracks, polarity reversal schedule is

being followed. The schedule is painted in the
concerned locations themselves.
2. The maximum excitation for QTA2 relays is
300% and for QBAT relays is 235%. The
maximum excitation for QBAT relays is pasted
in the respective location itself. No of QBAT
tracks----
3. TFBC failure buzzer and indications are
coming in the audio-visual alarm provided in
the ESM room. Also, datalogger SMS is
generated for the same. The delay for SMS
generation is kept 30 minutes.
4. Track relays are not due for replacement.
Codal life-10 years.
5. Condition of Bondings and track lead wires,
jumpers in the yard. Description writing on the
track lead junction box.
6. PPTC fuses are provided and are being
checked for their functioning during
maintenance. Also, main fuse continuity to be
checked.
7. Three-layer protection is provided.
8. Condition of glued joints. Any defective or
redundant glued joint. Numbering of Glued
joints.
9. Track batteries are not due for replacement.
DOI and track number to be painted on the
batteries.
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10. Maintenance card is available in the track
locations.
11. Track feed battery charger is not due for
replacement. Codal life – 10 years. The cell
selector switch is properly working and
selected as per number of cells.
12. TSR testing as prescribed in the SEM.
13. No ant entry in track or cut in relays base.
4. BPAC
1. Condition of Earthing. All the connection is
proper and intact. Value of MFE-------
2. SS nut bolts are provided in the maintenance
free Earth.
3. In case of maintenance free Earth, 35 sqmm
wire should be used for connection.
4. Deflectors are provided for DAC sensors and
are in good condition.
5. Maintenance diary is available in the
DP/Location and proper parameters are being
recorded.
6. Description writing work in the BPAC locations
for cables, relays and Equipment.
7. Mismatch logic should be configured in the
datalogger in case of Dual detection and Dual
card systems. The mismatch cases to be
analyzed properly.
8. Linker testing, Media changeover testing to be
done jointly by Signal and Telecom monthly.
9. PF contact of Linker and Quad cable ELD is
taken in the datalogger. SMS are being
generated for the same.
10. Joint quad cable and OFC parameter testing to
be carried as per schedule.
11. Description writing work is available at Relay
room CT rack, Telecom CT rack.
12. Zebra painting yellow & Black on BPAC
sleepers is done.
13. Resetting procedure of BPAC in case one

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 system is down and other is picked up.
Resetting procedure when both BPAC are
down. Private number is exchanged before
resetting when both systems are down.
5. Points
1. In case of ordinary points, Clearance between
leading stretcher bar and bottom of Rail 1.5 to
5mm.
2. For IRS point machine opening of Switches at
toe show in mm LH/RH side (115mm +/-3mm)
and for TWS point machine opening of
Switches at toe show in mm LH/RH side
(160mm +/-3mm)
3. TWS point JOH Clearance is 60+/-3mm.
4. Point Housing of sleepers from toe LH/RH side
5. In TWS points, last date of SSD joint inspection
by S&T and Engg. Gauge to be checked
jointly.
6. Engg deficiencies like out of square, creep,
burr, drainage, poor ballast, floating, loose
packing etc.
7. Condition of point zone insulations.
8. Condition of roddings, MS pins, play in the
roddings etc.
9. Point WJR timing is proper. WJR time-------
10. Description writing is available on the point
machine, CH key insertion and on the ARA
terminals inside the machine to be done.
11. The cross protection wiring at EI installation is
done as per HQ policy.
12. Point maintenance diary is available and
proper parameters like V, I, Opening, Housing,
JOH clearance is being written.
13. If point is more than 1.1 km apart electrically
from relay then 400 V ACI point motor to be
used.
14. The obstruction voltage in TWS point is not
dropping drastically.

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15. SSD is working properly. Insulated arm type
SSD is provided.
16. RDSO guidelines for TWS like Metallic liners,
MK-V pendrol clip, Tie bars, Inverted C tie bar
between 3rd and 4th sleepers are provided.
17. If the point operation conductors are made
parallel then they should be made parallel in
each location.
18. If difference between obstruction current and
normal current is less than 0.5 Amp then
friction clutch to be replaced.
19. Nominated TWS points parameters being
taken in every 15 days.
6. Location Boxes
1. Description writing work inside the location
and nomenclature (location no & gear nos.) of
location box to be done.
2. Earthing connections should be intact and
continuity to be checked.
3. Earth pit and enclosure should be provided for
earth. The value of earth along with DOI and
DOT to be painted.
4. Condition of location foundation is good.
Proper sand filling and plastering should be
done.
5. Cable armour earthing and soldering is
proper.
6. Location light if available should be working
properly.
On duty ESM room/JE/MT room
1. Datalogger, MT PC are working properly.
2. Spares in the relay room, if kept, should be
properly in arranged way. List of spares is
made and pasted at appropriate place in the
relay room.
3. In case of EI, OC wise yard segregation to be
pasted in different colour practice.
4. BPAC dual detection indications are available

17
 on the MT and Datalogger.
5. NMDL software are updated one at site and
test room. Simulation are correct as per SIP
and working properly both at site and test
room.
6. Data logger PC timing is matching with real
time clock. EI timing is in synchronization with
datalogger timing.
7. Any recent modification/alteration done in
yard layout. If so then it shall be updated in
simulation of test room and at site.

8. Daily exception report is being generated and

saved with proper remarks.
9. TFBC failure buzzer and indications are
coming in the audio-visual alarm provided in
the ESM room. Also, datalogger SMS is
generated for the same.
10. Fuse alarm system if provided in these rooms
then all should be working properly. Proper
description should be available on each fuse.
11. All the maintenance registers and documents
to be kept properly.
12. EI log sample check by on duty staff and
checksum checking. EI changeover testing
and procedure when EI is shut down. Same
procedure to be pasted on the EI rack. EI
changeover register.
Miscellaneous items
1. Painting of all the gears should be in good
condition. Whitewashing of all the foundations
of our S&T gears.
2. No vegetation around any of the signalling
gears.
3. Earth pits to be cleaned and covered.
4. Implantation writing work to be done on Main,
Shunt signals, Locations etc.
5. No scrap in the section or station. Scrap

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 disposal to be done for released material.
6. If any running lobby is there then no remarks
should be pending for the complaints related
to S&T.

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