SIGNAL AND TELECOMMUNICATION DEPARTMENT:

Sl. NO. OF INSPECTIONS AND ITEM TO BE INSPECTED No. i) Station Inspection (Signal, Point, Track and Documentation)

ii) Gate Inspection (Station Section, Mid Section Interlocked, Manned Non- Interlocked)

iii) Stores Inspection of Signal/Telecom depot

iv) Zonal Training School-Refresher/Initial Training

v) Surprise Inspection

vi) Foot Plate Inspection (Signal Visibility)

vii) Any other item assigned by Superior.

RRI/Panel/EI installations, Block Instruments, IPS, Battery Rooms, Data logger, BPAC :

Sl. No. DETAILS i) Check Panel Operation.

ii) Relay Rooms details.

iii) Emergency counters.

iv) Signal Failures.

v) Disconnection/Reconnection.

vi) Safety compliance of last inspections.

Note : One should be between 00:0 hrs to 4:00 hrs and one during day - at least a stretch of 100 km.

INSPECTION GUIDELINES - for S & T Installations SAFETY CHECKS LIST

1. Relay Room / Cabin Basement / Block Instrument key Observations (a) Relay Room key is not taken more than once in a month for schedule maintenance & supervisor takes it. (b) Switch on Relay Room Door is as per standard arrangement & spurious logging is not there. (c) Cross check relay room register with data logger records and mechanical counters / S&T control record - No. of times key taken and duration shall match. (d) Key for Construction work is taken as per the programme agreed by Sr. DSTE. (e) Construction staff has given memo of the work done for each occasion of key taken. (f) Block Instrument key is not taken or instrument opened when it is on TOL / Line Clear position. Check timing from TSR. (g) Double locks at all the places are effective and it is not possible to open without proper key. Try with all available keys with S&T staff. (h) Check for duplicate keys in ESM / MSM duties room, tool box / bag. (i) ESM / MSM duty room key is with ESM and Section SI only (j) Relay Room key of S&T lock remains in custody of ESM of Station / Section. (k) Exceptional report from data loggers to be checked if provided for - point failure, signal failure and delay in signal going to ON after occupation of controlling TC. (l) All relay are properly sealed with screw fully tightened and an impression on seal is proper. (m) Spare relays are kept sealed in Relay Room. (n) Date Loggers / modem or its reset is shifted outside, wherever feasible (o) Panel, lever frame, SM frame, Block testing / overhauling is not due. (p) In Relay Room loop or extra wire are not kept. 2. Signal Failure Register - (a) Signal Failure Memo is issued for each failure recorded in SFR. (b) Each memo issued by SM is acknowledged. (c) Put right time & cause of failure are entered properly by SM & S&T staff respectively. (d) Signal failure, which could have been attended from outside but relay room key taken. (e) Trains passed on signal during signal failure. (f) Train passed on signal when relay room key was taken during signal failure. (g) Total trains passed during failures as per TSR & SFR & T/369(36) B actually issued. (h) T/369(36)B cancelled during signal failure & otherwise.

1. Disconnection Memo - a) Total Nos. and adequacy of duration for the type of work done. b) No. of trains passed on signal during disconnection. c) Cross check the functioning of the disconnected gear with data loggers report and the work, if any done after reconnection. d) Reconnection of Construction work on existing gear is after testing by open line. a) All Supervisors & Maintainers are aware of the activities to be done with and without disconnection. 4. Counters- a) Checks all the counters are in working conditions and increment by one only. b) RRBU cancellations are done after receipt of memo from SM & all memos kept serially numbered in guard file. c) EBPU operation during TC failure - corresponds with SFR record. d) ERRB cancellations are not too many & analysis of it. e) Proper procedure of / MUX resetting is followed. 5. Joint inspection of Panel & Crossing and TC - a) Quarterly schedule is followed. b) Deficiencies are not carried forward. c) Major deficiencies yet to be attended like worn out tongue rail, stock rail, machine sleepers, out of square, missing stock bolts and loose packing. d) Availability of pad & liner, condition of sleeper. e) Drainage system. 6. Material availability - a) Critical stores for regular maintenance. b) Torches & Cells. c) Tools and measuring instruments. d) Cotton waste, signal bulbs, lubricating & gear oil. 7. SSE’s Depot- a) Safety meetings are scheduled every month and all staff attended. b) Signal lamp lasting arrangements for 3 hours. c) Material shortage, stock / non-stock items and storage system. d) Staff grievances. e) Competency certificate cum training history book is with each maintainer as issued by SBI school. f) Staff categorized as A, B, C category and 6 monthly reviews done. g) Staff is not due for refresher course. 8. Station Staff- a) Competency of operation is available. b) Setting of point against stabled/stationery load. c) Prescribed practice is followed for treating a point/signal defective till a written advice for its rectification from S&T staff is given. d) Point is inspected by SM after its failure. 9. SWR/SWRD- a) SWR matches with SP. b) SP matches with the last work commissioned. c) Counseling of station staff is done for the late update of SWR. 10. Drivers lobby- a) Signal defects are attended and the remarks are put in b) Repeated cases of defects reported. RELIABILITY CHECK: 1. Maintenance- a) Maintenance by ESM is regular & record kept in SMC and site book. b) Sectional SI's inspections are regular & record kept. c) Quarterly inspections by SSE and monitoring system by him to ensure quarterly inspection. d) P-6 Schedule by SSE and corresponding disconnection memo of adequate duration. 2. Points- a) Point motors are opened for regular maintenance & not kept sealed throughout the year except monsoon. b) Epoxy coating of motors & detector assembly in flood prone area is done. c) Ground connections are fitted as per standard drawing d) Wear & Tear on machine slides looseness on pins in ground connections. e) Motor current under obstruction & normal. f) Friction clutch strips under obstruction. g) WJR timing for "N" & "R" h) Wards on point motor correspond with the KLR. i) Cleanliness of carbon brush & availability of chamois leather. 3. - a) Track circuit parameters are within limit. b) Relay are not overdue for overhauling. c) Track circuit history card are maintained every six months. d) Track circuit batteries are positively wired in circuit. e) Track circuit in flood prone areas and improvement needed like axle counter in parallel. f) Testing of GJ/IBJ and replacement of IBJ is done as per schedule & procedure followed during replacement. g) OHE bands are available on FP/SEJ & track crossing is insulated. 4. Signal- a) Lamp voltages are not than 11.2V. b) MECR functions are checked regularly as per schedule. c) Cases of repeated lamp fusing of a signal of particular 5. Lever lock & circuit controller - a) Proper adjustment of bands & make in proper position. b) Serrations are holding bands and nut/split pin are intact. c) Lock is effective and releases at the required position. 6. Power equipment, batteries & fuses - a) Battery conditions and year of installation, plan for replacement. b) Battery maintenance SG & voltage. c) Load capacity. d) Redundant fuses are removed. e) Charger failure & alarm for TC batteries & other. 7. BPAC & AXLE Counters - a) Co-operative reset is effective & for point zone it is from site. b) Resetting of axle counter - analysis, repeated resets and cause thereof. c) Channels voltages are in limit. d) Resetting of Mux and analysis of it. e) Quad cable is terminated on M6 terminals - plan for removing 8-way. f) Availability of spares, card, field units & measuring instruments. g) Checking system of spares, put for one work in service. h) Storage of spare cards. i) Axle Counters/MUX are provided with better earth through resistance improvement compound. 8. Panel- a) Panel testing is as per schedule of 3 years. b) Record of panel testing is kept at site, check the LT/ST on which testing done and signed by testing official. c) Date of testing is painted on panel. d) Cable from relay room to panel is in protected pipe. e) RRBU lock is not free. 9. Cable Testing- a) Cable Testing as per maintenance schedule. b) System of monitoring cable testing as per schedule. c) Availability of left over spares in existing cables. d) Age & insulation value left. e) Need for replacement of defective cable & quantity. f) Tail cables of all electrical gears are tested as per schedule. 10. Signal Failures - a) Repeated failure of a gear. b) Repeated & causes. c) Broad analysis and input needed for improvement. 11. Documents- a) Completion documents are available at site. b) Modifications, if any done, each as per approved circuit & approved diagrams for that are available. c) All documents as per list are available.

Annexure-I

Check List for different Register: 1. Joint Points & Crossing Register i) Quarterly schedule is followed by SSE/JE (Signal) & SSE/JE(P-Way) ii) Deficiencies are not carried forward iii) Compliance being done & recorded iv) Major deficiencies yet to be attended like worn out tongue rail, stock rail, Machine sleepers out of square, missing stock bolts and loose packing, Defective glued joint & damage of insulation under clit bolt over bridge portion track circuit area v) Availability of pad & liner, condition of sleeper vi) Drainage vii) Engineering and S&T Officers are checking register while on inspection. viii) Whether summary of inspection is recorded in the summary column properly. ix) Whether Engineering and S&T Officers are checking the register while on inspection. 2. Signal Failure Register i) Signal failure memo is issued for each failure recorded in SFR ii) Each memo issued by SM is acknowledged. iii) Put right time & cause of failure are entered properly by SM & S&T staff respectively. iv) Signal failure which could have been attended from outside but relay room key taken. v) Whether disconnection Memo is given for attending signal failure which requires disconnection. vi) Trains passed on Signal during signal failure. vii) Total Train passed during signal failure as per TSR & SFR & T/369(3b) actually issued. viii) T/369(3b) cancelled during Signal failure & otherwise. ix) All the Signal failures are regularly recorded. x) Month wise summary of failures is being made at the end of each month. xi) Summary of failures is signed by SS & SSE/Signal jointly. xii) Cross check SFR with Relay Room key register (In case of failure attended from Relay Room) 3. Relay Room Key Register. i) Relay room key is not taken more than once in a month for schedule maintenance & supervisor takes it. ii) Cross check relay room register with data logger records and mechanical counters/S&T/control record - No. of times key taken and duration shall match. iii) Key for construction work is taken as per the programme agreed by Sr. DSTE. iv) Construction staff has given memo of the work done for each occasion of key taken. v) Relay room key of S&T lock remains in custody of Technician of Station/ Section. vi) Whether Signature of SM & Tech. is recorded in the register before opening and closing the relay room ? vii) Whether Relay room is frequently being opened by signal staff ? viii) Whether the duration and reason of relay room opening is clearly mentioned in the record ? ix) Private number is being taken from S&T control and recorded in relay room key register for opening of relay room. 4. Station Asset Register i) Whether all signals and point at the station are mentioned. ii) Whether the record is up to date iii) Whether it has been check up a Office of S&T department. iv) All equipment's list as per their date of installation, Type, total nos., make etc. 5. Cable Testing Register i) Whether Cables have been tested before monsoon each year ii) Insulation of each conductor with respect to each conductor is recorded.*[*see Appendix – 3- i] iii) Faulty conductors of the cable have been replaced with healthy conductors. iv) Whether it has been checked by an Officer of S&T Dept. v) Cable testing as per maintenance schedule. vi) System of monitoring cable testing as per schedule. vii) Availability of left over spares in existing cables. viii) Age and insulation value left. ix) Need for replacement of defective cables and quantity. x) Tail cables of all electrical gears are tested as per schedule. xi) Whether status of cable insulation test and its record are available? xii) Termination of Spares conductor is properly marked. 6. Route Cancellation Counter/Register i) Whether for particulars route, cancellation is frequently being done? ii) Whether reasons for emergency route cancellation are recorded by ASM? iii) Whether it has been checked by an Officer of S&T Dept. iv) Check all the counters are in working conditions and increment by one only. v) RRBU cancellation are done after receipt of memo (Where RRBU key is in the custody of S&T staff) from SM & all memos kept serially numbered in guard file. vi) EBPU operation during TC failure - corresponds with SFR record. vii) ERRB cancellation are not too many & analysis of it. viii) Check all the entries are correctly filled up without any overwriting & match with the corresponding counters readings. ix) Whether for any particular route, cancellation is frequently being done? x) Whether reasons for emergency route cancellation are recorded by ASM ? xi) Whether it has been checked by S&T Department xii) Whether all the parameters are measured and recorded and are within permissible limit ? .*[*see Appendix – 3-ii]

7. Signal Maintenance Register i) Whether measurement of voltage and current at each signal is done by technician regularly. ii) Whether focusing is being done at every maintenance schedule ? iii) Whether lenses are cleaned at every maintenance ? iv) Whether locking arrangement is proper ? v) Whether gaskets and sealing are proper ? vi) Schedule maintenance to be maintained in this register. To be modified 8. Axle counters (Analog/Digital) Register i) Whether the track detection unit is fixed at a distance of minimum six sleepers away from the nearest rail joint ? ii) Whether shielded wire of one mm diameter is used for wiring ? iii) Whether the inspection of evaluator is being done as per maintenance schedule? iv) Whether every operation of reset button is counted a Veeder counter and shall be properly recorded in the train signal register indicating the movement before and after the operation of reset button ? v) The reset device shall be operated by a key which shall be kept lock in a separate box in the SMs office. Whenever, it become necessary to operate the reset device, the resetting shall be done jointly by ASM along with SM and in case of SM is not available this resetting is done jointly by the ASM with switchman or by ASM with ESM. vi) Ensure once the Axle counter has failed and the concerned Signal cannot be taken off, the dispatching station shall verify the clearance of block section by exchange of private no with the station in advance. vii) Each and every operation of the reset button shall be recorded in the train signal register by both the station and during inspection of the stations the signal and the traffic inspecting officials shall specifically check up the procedures being followed in respect of the above reset buttons and ensure that the exchange of private no in this regard is being maintained properly (Chapter-VII, SEM part-II SN No-17.48.2) 9. Block instrument Maintenance Register i) Whether separate earth has been provided for each block instrument? ii) Whether all block instrument are properly sealed? iii) Whether any block instrument is due for overhauling?* [* See Appendix-3-iii] iv) Whether date of last overhauling is painted on the instrument? v) Whether the record is checked by SSE/Officer at the time of inspectionat station? vi) Double locking arrangement is provided in Block Instrument? vii) Block Phone is working properly. viii) Double locking key register is maintained for each block failure and for maintenance? ix) Whether all Block Instrument are properly sealed & locked? x) Whether Block instrument key taken in done entry in register? xi) Whether SSE/Officer checks the record at the time of inspection. 10. Track Circuit Maintenance Register i) Whether Technician checks and record the measurement regularly in the register? ii) Whether jumper connections are inspected frequently and mentioned in the record? iii) Whether bond wires are inspected frequently and recorded? iv) Whether S SE/Officer checks the track circuit card at the time of inspection? v) Whether condition of Block Joint/Glued joint. Metal flow of glued/ Block joint is checked? vi) vi) Whether SSE/Officer checks the Track circuit card at the time of inspection? The following Format is to be followed in case of Track Circuit Maintenance card. a) Station or section b) Track Circuit No. c) Siemens/Van type d) Date of Installation e) Frequency : 50/83 1/3 HZ f) Control Phase g) Control phase rated P.U. voltage h) Local Phase rated P.U. volt i) Length of track leads..... (F/end) j) Length of track leads..... (R/end) k) Control P.U. current l) Control D.A current m) Type of sleeper & condition n) No. of block joints o) No. of p) Length of track circuit q) Type of Ballast r) Date s) Weather t) Condition of Ballast u) Percentage of ballast clear of rails v) Drainage of track Good, Fair or bad w) Condition of rail surface x) Condition of insulation joints y) TR control phase voltage primary z) Tapping on secondary F/T aa) VF Voltage feed end rails ab) IF current to track ac) VR voltage rail relay end ad) Voltage at relay terminals ae) TR current at relay terminals af) Tapping on primary R/T ag) Tapping on secondary R/T ah) VRS voltage secondary terminals R/T ai) IR current to relay terminals aj) VL voltage local ak) Ballast resistance al) Rail resistance am) Drop shunt value an) Pick up shunt value ao) Station ap) Signature of Section Engineer Signal aq) Signature of Senior Section Engineer Signal. 11. Diesel Generator (DG) Register *[* See Appendix – 3-iv] i) Whether testing of DG set is done daily and recorded? ii) Whether greasing and oiling is done regularly? iii) Whether diesel consumption is recorded in the register? iv) Whether working of DG set is checked by SSE/Officer while inspection? v) Whether DG set is in proper working order along with Remote start function from ASM Room? 12. Documents i) All Completion documents are available at site. ii) Modification if any done, each as per approved circuit and approved diagram for that are available. iii) All documents as per list are available. 13. Disconnection & Reconnection Memo i) Total nos, and adequacy of duration for the type of work done. ii) To check no of train passed on signal during disconnection. iii) Cross checks the functioning of the disconnected gear with data loggers report and the work, if any done after reconnection. iv) Reconnection of construction work of existing gears is done after testing by open line. v) All Supervisors and maintainers are aware of the activities to be done with and without disconnection. Signaling Installation Inspection 1. Panel Room/ASM Panel i) Whether Signal failure analysis from Signal failure register is done? ii) Whether Review/Updating of Station Working Rules (SWR) & Station Working Rules Diagram (SWRD) Assurance of ASM's/Operating staff for understanding of SWR & correction slips is being done? iii) Whether working of Block Instruments (B/I), overhauling status is satisfactory? iv) Whether Joint Inspection of point and crossings compliance status is being done? v) Whether sealing of panel, B/I, emergency key box is done properly? vi) Whether Counter Reading record with respective counter is matching? vii) Panel testing is as per schedule of three years. viii) Record of panel testing is kept at site, check the LT/ST RCC on which testing is done and whether signed by testing official? ix) Date of testing is painted on panel. x) Cable from relay room to panel is in protected by GI pipe. xi) RRBU lock is not free. xii) Are KLCR boxes properly sealed and extracting of the key without control possible or not? xiii) Stop collars are available? xiv) IPS status monitoring panel at ASM room is working properly or not (if IPS is provided) xv) ACD status at ACD console monitoring Panel? xvi) Earthing arrangement at operating Panel? 2. Relay Room i) Check Switch on relay room door is as per standard arrangement and spurious logging is not there. ii) Double lock are effective and it is not possible to open without proper key. Try with all available keys with S&T staff. iii) Check for duplicate keys in Technician's duty room, tool box/bag. iv) Technician duty room is with technician and Sectional Signal Supervisor only - To check v) All relay are properly sealed with screw fully tightened and impression on seal is proper. vi) Spare relay are kept sealed in a relay room. vii) Data loggers/Modem or its reset is shifted outside, wherever feasible. viii) In relay room extra wires are not kept. ix) Whether Relay room opening is recorded regularly? x) Whether dressing of wiring & proper upkeep of relay rooms is being done? xi) Whether there is availability of standard approved wiring diagram set in Relay Room? xii) Whether fuse, MDF description board is of standard size? xiii) Whether earthing of armouring of cable is done? xiv) Air-conditioning of relay rooms is effective or not wherever available? xv) Whether all the K-50 relays having the seal of SSE, is available? xvi) Is the effectiveness of approach lock, back lock of signals tested? xvii) Earthing arrangement of Ralay room-Ali earths should be as per standard procedure. Earth value should be less than 10hm. 3. Track Circuit* [* See Appendix – 3 – v] i) Whether Track circuit-availability of maintenance record card is available at site, Track Circuit drops when shunted with TSR is effective? ii) Track circuit parameters are within limit. iii) Track Relays are not overdue for overhauling/ iv) Track Circuit batteries are positively wired in circuit. v) Track circuit history card are maintained every six months. vi) Condition of Track circuit in flood prone areas and improvement needed like Axle counter in parallel. vii) Testing of GJ/BJ and replacement IBJ is done as per schedule and procedure followed during replacement. viii) Are the track/line relays are timely replaced? ix) To check the pickup voltage of the relay not exceeding 300% of rated pick up voltage. 4. BPAC and Axle counter. i) Co-operative reset is effective and for point zone it is from site. ii) Resetting of axle counter-analysis, repeated resets and cause thereof. iii) Channels voltages are in limit. iv) Resetting MUX and analysis of it. v) Quad cable is terminated on M6 terminals-plan for removing 8 way. vi) Availability of spares, Card, field units and measuring instrument. vii) Checking system of spares, put for one work in service. viii) Storage of spare cards. ix) Axle Counters/MUX are provided with better earth through resistance improvement compound. 5. Power Supply arrangement a) Integrated power Supply i) Working of IPS-whether all modules are in working order? ii) Whether IPS monitoring panel, IPS failure alarm and DG start-stop panel facility status panel is working properly iii) Whether ventilation arrangement of IPS and battery room is proper? Are exhaust fans available and are in working order? iv) Earthing arrangement of power supply arrangement? b) Battery Room i) Physical condition of battery set cleaning, maintenance record is available?* [* See Appendix – 3 vi] ii) Periodic maintenance record is available? iii) Proper upkeep of battery room is being done? iv) Battery conditions and year of installation, planned for replacement. v) Load capacity. vi) Redundant fuses are removed. vii) Battery maintenance SG and voltage. viii) Programme Switch contacts are made parallel. ix) Parallel fuses in relays and other circuit with indication arrangement. x) Whether all the power equipments having fuses and MCBs of proper capacity both in the incoming and outgoing sides and are these equipments of proper rating? 6. Data Logger i) Whether proper working of data logger is being done ? ii) Whether data Logger are installed inside Relay Room & Monitoring panel is provident outside the relay room? iii) Whether networking status of Data logger with division and HQ is done? 7. Level Crossing i) It shall be ensured that both the booms are parallel in open condition. ii) Integrity of and boom locking shall be checked.* [*See Appendix 3-vii] iii) Rusty wires and rodding shall be replaced. iv) It shall be ensured that 'E' type lock which locks the winch should also lock winch handle in closed position of barrier. v) All gate locking apparatus must be examined regularly and working parts kept oiled. Gate locks must be kept in good working order. vi) Proper working of audio/visual warning shall be ensured. vii) The telephone communication facilities where provided between Level Crossing gates and the adjoining stations shall be checked in regard to their satisfactory functioning. viii) Are road warning bell and lights are in working order? 8. Lever Frame i) Whether working of Lever Frame is smooth? ii) Whether full stroke is transmitted? (Signal-250, 300 mm; Point-125, 150, 200mm) iii) Whether all pin joints properly fit & slackness is proper? iv) Whether overhauling/testing date of Lever frame is due? v) Whether lever collers are used on the relevant levers pertaining to the blocked/ obstructed line? vi) Whether essential equipment chart is prominently displayed? *[*See Appendix 3-viii] vii) Whether the pull chart as per inter locking arrangements is available? viii) Whether the dates of over hauling of cabin lever frame and block instrument are clearly mentioned? ix) Whether cleanliness of cabin and lever frame is good? x) Whether up to date diagrame is displayed above the lever frame? xi) Whether all levers are painted in colour and serially numbered xii) Whether interlocking arrangement permits any conflicting movements in the yards (this may be checked by pulling conflicting levers)? xiii) Whether Electric Repeaters and slot indicators where provided are in good working order? xiv) Whether cabin basement room is provided with double key locking arrangement? 9. Rod Run i) Whether rollers are moving freely in the entire rod run? ii) Whether condition of Roding Joints is satisfactory? iii) Whether alignment, spacing of roller trestles is proper and free from vegetation? iv) Whether foundation of trestles is proper? 10. Point i) Whether opening of switches (95-115mm) is available ? ii) Whether condition of switches, squaring is satisfactory? iii) Whether housing of switches is proper? iv) Whether obstruction test is effective? v) Point Motors are open for regular maintenance and not kept sealed throughout the year except monsoon. vi) Epoxy coating of motor and detector assembly in flood prone areas is done. vii) Ground connections are fitted as per standard drawing. viii) Wear and tear on machine slides loosens on pins in ground connection. ix) Motor current under obstruction and normal condition. x) WJR timing for normal and reverse operations. xi) Wards on point, motor correspond with the KLR. xii) Cleanliness of carbon brass and availability of chamois leather. xiii) Check whether the current required to operate the machine in either direction is the same (approximately). The reason for unbalance, if any shall be investigated and eliminated. xiv) Friction clutch where provided shall slip at a value not less than one and half and not exceeding twice the normal working current. xv) Is point motor having different of one ampere or more between operating and obstructing current? xvi) Are all the trap and point indicator provided as per the approved signaling plan? xvii) Wiring inside the point machine is properly dressed? 11. (I) Signal i) Lamp voltages are not less than 11.2 volts. ii) MECR functions are checked regularly as per schedule. iii) Cases of repeated lamp fusing of a signal particular make. iv) Does the signal return to on position when controlling track circuit are occupied or control withdrawn? v) Have the entire signal unit been properly locked/pad locked? (II) LED SIGNAL ECR for LED Signal Unit of AC Model a) Universal Plug-in-type, Tractive armature AC lamp proving relay is used. b) Maximum pickup current = 90 mA / AC, 50Hz. c) Minimum release current = 60 mA / AC, 50Hz. d) This ECR withstands for a continuous current of 250 mA / AC 50 Hz. e) Contact configuration: 4F-4B identically in A to D rows. f) Voltage drop across R1 and R2 is less than 10V @ 125 mA / AC (normal working Current). g) Always provide proper rating fuse. h) Monitor health monitor unit on each visit. i) Operate audio alarm and check acknowledgement button. j) LED Signal lighting unit should be kept in Burn in test for 48hrs before putting in use. DC ECR for LED Signal Unit of DC Model (a) Universal Plug-in-type, tractive armature DC lamp proving relay is used. (b) Maximum pickup current = 80 mA / DC. (c) Minimum release current = 55 mA / DC. (d) This ECR withstands & continuous current of 200 mA / DC. (e) Contact configuration: 4F-4B identically in A to D rows. (f) Voltage drop across R1 and R2 is less than 10 V @ 100 mA (normal working current). Operating Precautions for LED Colour Light Signals (a) Loose connector between aspect & Current Regulator can cause dropping of ECR, false operation of blanking/non-blanking. (b) Blanking mode should be selected for OFF Aspect Current Regulators. The units are shipped with default setting of non-blanking mode. (c) Units supplied prior to version-1, voltage lower than 80 volts may lead to double aspect. (d) Wrong selection at HMU side or signal lighting unit side can lead to an alarm. (e) Please ensure the correct polarity while connecting Power supply in case of DC Lit Signals. (f) Mounting Bolts/Screws should be secured tightly for the Aspect, Current Regulator as well as Health Monitoring Unit. (g) Signal housing door should be kept shut and locked. (h) After every tightening/opening of terminals of Aspect/Current Regulator, CRC should be sprayed on the terminals. (i) Cleaning of the Aspect may be done periodically with soft cloth, antistatic. 12. Block Instrument a) Block Instrument key is not taken or instrument open when it is on TOL/Line clear position. Check timing from TSR. b) Block Instrument are properly sealed and in lock condition. 13. Semaphore Signal a) Whether testing of Signal working is effective ? b) Whether focusing of signals are satisfactory? c) Whether effectiveness of reverser is satisfactory? d) Are the standard dimension checked for non infringement? e) Is the tripping mechanism of clutch lever is working order and the tension kept as per IRSE Manual? 14. Cabin Inspection a) Whether ASM/SWM/LM on duty is/is not alert and in proper uniform? b) Whether the safety equipments is available as per Station Working Rules and is in good working condition? 15. Lever Lock Circuit Controller a) Proper adjustment of bands and make in proper position. b) Serrations are holding bands nut/split pin are intact. c) Lock is effective and releases at the required position. 16. Material availability a) Critical stores for regular maintenance. b) Torches and cells. c) Tools and measuring instruments. d) Cotton waste, Signal bulbs, lubricating and gear oils, LED lamps etc. e) Critical store like Signaling cables, LED ECR, LED Signal lamps, Point contractor unit, relays etc should be kept in adequate nos. on hand. 17. SSE's Depot a) Safety meetings are schedule every month and all staff attended. b) Materials shortage, stock/Non stock items and storage system. c) Staff grievances. d) Competency certificate cum training history book is with each maintainer as isued by S&T Training School. e) Staff is not due for Refresher course. f) Signal lamp testing arrangements for 72hrs. 18. Reliability Check a) Maintenance by Technician is regular and record kept in SMC and site book. b) Sectional Supervisor's inspections are regular and record kept. c) Quarterly inspections by SSE and monitoring system by him to ensure quarterly inspection.

SIGNAL AND TELECOMMUNICATION DEPARTMENT APPENDIX

APPENDIX - 3-i Item Periodicity Reference Value

Cable Testing i) In Dry weather every year during Insulation resistance October to March should not be less than 5 ii) 10% of conductor in wet weather Mega Ohm.(SEM-lI during July and August Annexure 12, Para iii) Tail Cable-Once in Six months 15.23.1 (2.4)

APPENDIX - 3-ii Route Monthly by JE/SE and Quarterly by Time delay = 12Qsec Cancellation In charge. (SEM-II, para-21.5.8) Counter

APPENDIX - 3-iii Block i) Periodical OVH of Single Line Instrument Token Instrument = 10 years ( SEM -II Para 18.42) ii) Periodical OVH of Double Line Block Instrument = 7 years

APPENDIX - 3-iv Diesel Overhauling = After lOOOhours of Generator run (SEM-II Para 16.12.4)

APPENDIX - 3-iv Track Circuit i) Operating Characteristics of track i)Excitation of DC Track relay - Once in 02 years relay = Minimum 125% of ii) Track Shunt test - Every Quarter its rated P.U Value under & every time the track circuit is minimum ballast adjusted or any alteration is made. condition. Track Circuit ii)Maximum excitation shall not exceed 250% & (CAMTECH/S&T/2009/DSTC/ 2.0 300% of the rated March-2009) PU value for Shelf type relays & plug in type relays.

(SEM-II Para 17.15.4)

APPENDIX-3-vi Secondary Cell Cell shall be tested periodically. The voltage of individual (SEM-II Para 16.10.8) cell shall not fall below 1.85v (SEM-II Para 16.10.8)

APPENDIX-3-vii Level Crossing Integrity of Interlocking shall be Gate. checked Monthly by MSM/ESM. (SEM-II ,Annexure 11, Para 14.3.10 (5) & (4)

APPENDIX - 3-viii Overhauling - Once in every 3 years Lever Frame or earlier if necessary (SEM-II Para 13.3) Testing - Once in a year or earlier if necessary (SEM-II Para 13.3)

APPENDIX - 3-ix Point Machine Operating values & adjustment of the Obstruction Test- 5mm machine and adjustment of the thick test piece During machine by obstruction test by obstruction Test – The i) Sectional In-charge of the feed to the point is section – Once in 3 months. automatically disconnected ii) Section Engineer of within 1.5 times to 2 times Electrical apparatus – Every month the normal operating time of point machine. For sequential operation of point machine the maximum time before disconnection may exceed 3.5 times the normal operating time of point machine. ( SEM-II Para 19.129)