C/2005/RVNL/St.Specifications 15th Feb.’06 ADDENDUM/CORRIGENDUM SLIP NO.1 DATED 15.02.06 TO RVNL STANDARD SPECIFICATIONS FOR MATERIALS AND WORKS” S.No. 1. Reference of Clause No. S&T Works Vol.III Page 4 of 61 Clause 3.3 Details of Corrigendum/Addendum to clause under reference Clause 3.3 is modified as under:“A list of technical specification and drawings have been prepared and annexed as Annexure A-1 for following the details of purchases of material, equipments and execution of work. These technical specifications and drawings can be purchased from the sources mentioned in the Annexure A-1. List of major construction/equipments drawings for signaling other than RDSO drawings are given in Annexure A2”. The copies of Annexures A-1 and A-2 are enclosed with this Corrigendum. 2. S&T Works Vol.III Page 8 of 61 Clause 4.8 Annexure „B‟ appearing in last sub para of Clause 4.8 is enclosed 3. S&T Works Vol.III Page 16 of 61 Clause 9.8 S&T Works Vol.III Page 18 of 61 New Clause 10.12 The Drg.No. RVNL/S&T/SG-037/2005 to be read as RVNL/S&T/SG-033/2005. Also in the same para Drg.No.. RVNL/S&T/SG-035/2005 should be read as RVNL/S&T/SG-032/2005 Add Clause No.10.12 after Clause No.10.11 as under: 10.12 : All signals are to be earthed as per RE standard in RE area S&T Works Vol.III Page 24 of 61 New Clause 15.18 Add Clause 15.18 after Clause No. 15.17 as follows: 4. 5. 15.18 : Audio Frequency Track Circuits)(AFTC) 15.18.1 : AFTC track circuits shall be provided as per RDSO specification No.RDSO/SPN/146/2001 with latest amendments. 15.18.2: Only coded AFTC track circuits shall be provided. Page 1 of 27 15.18.3: Frequencies and code selection shall be made in a suitable manner so that they are not repeated in the same yard. 15.18.4: AFTC track circuits shall be suitable for 25 KV Railway Electrification. 15.18.5: These track circuits shall be operated with 230 Volts AC supply. 6. 7. 8. S&T Works Vol.III Page 25 of 61 Clause 16.3 S&T Works Vol.III Page 26 of 61 Clause 17.1 S&T Works Vol.III Page 27 of 61 Clause 18.1 15.18.6: Separate 4/6 quad telecommunication cables shall be used for transmitter and receiver frequencies for the same track circuit. At the end of last sentence of the para add words: in RE area The first sentence of the Clause is modified as under: Cable termination racks as per drawing RVNL/S&T/SG-056/2005 shall be erected in the relay room at the required location as shown by the Railway with suitable foundation bolts and cement concreted. Clause 18.1 is replaced as under: 18.1 Relay rack frame to accommodate 1 way, relay rack is to be fabricated as per RVNL Drg No. RVNL /S&T /sg-055/2005. The frame is held rigidly by the base assembly and electrically isolated by insulator. vertical supporting angle of 65mm X 65mm X 8mm and bottom and top frame angle of 45mm X 45mm X 6mm. Relay rack is to be fabricated out of 65mm X 65mm X 2200mm angles in vertical position spaced 530 mm apart by the flats one at the top and the other at the bottom welded to the angle. The relay racks are fitted to the angle frame by 20 X 75mm bolts with washers and spring washers. 9. S&T Works Vol.III Page 34 of 61 Clause 22.0 The heading “SSI system” is replaced with “EI System” and in its sub paras whereas words SSI appears is to be read as EI. 10. S&T Works Vol.III Page 34 of 61 Clause 22.1 In second line of the Clause 22.1 the RDSO specification No. RDSO/SPN/102/2004 to be read as RDSO/SPN/192/2005. Page 2 of 27 11. S&T Works Vol.III Page 34 of 61 Clause 22.2 (b) At the end of Clause 22.2(b), add Manufacturer/Supplier/Contractor shall ensure that after the end of 10th year, a minimum notice period of 3 years is given to Railways before discontinuing the production of the model so that the Railway can purchase life time spares. 12. S&T Works Vol.III Page 35 of 61 Clause 22.2(d) The word „quantity' appearing in Ist line to be replaced with quality 13. S&T Works Vol.III Page 35 of 61 Clause 22.4 Replace Clause 22.4 as under:22.4 WARRANTY: 22.4.1 The contractor shall warranty that all materials & equipment to be supplied and installed as per this tender shall be free from defects and faults in design, material, workmanship and manufacture and shall be of the highest grade and consistent with established and generally accepted standard for materials of the type ordered and in full conformity with the contract specification. 22.4.2 This warranty shall start from the date of commissioning and shall expire 1 year (12 months) after commissioning. The contractor shall be responsible for the proper functioning of the system during the period of warranty. 22.4.3 During the period of warranty, the Contractor shall remain responsible to arrange replacement and for setting right at his own cost any equipment supplied by him which is of defective manufacture or defective design or defective material/ component or becomes unworkable due to any cause whatsoever. Page 3 of 27 22.4.4 If it becomes necessary for the contractor to replace or renew any defective portions of the system under this clause, the provision of this clause shall apply to the expiry of six months from the date of such replacement or renewal or until the end of the warranty period whichever may be later. If any defect is not remedied within reasonable time, the Railway may proceed to do the work at Contractor‟s risk and expenses, but without prejudice to any other rights, which the Railway may have against the Contractor in respect of such defects. 22.4.5 Inspections, clauses for replacements or renewals carried out by the Contractor during the warranty period shall be the same as provided in the conditions of the contract for the work. 22.4.6 All replacement and repairs and design change that the Railway shall call upon the contractor to deliver or perform under this warranty shall be delivered and performed by the contractor within one month, promptly and satisfactorily. 22.4.7 The decision of the Railway in regard to Contractor‟s liability under this warranty shall be final and conclusive. 22.4.8 Due to analysis of failures, if any design deficiency is pointed out by the Railway, the contractor shall rectify it at his own cost. 14. S&T Works Vol.III Page 35 of 61 New Clause 22.5 Add Clause 22.5 after Clause 22.4 as under: Page 4 of 27 22.5 ANNUAL MAINTENANCE CONTRACT ( 22.5.1 Tenderer should quote separately for Annual Maintenance Contract(AMC) charges for the equipment per year for a period of 1 (one) year which shall be considered for evaluation of the Tender. The rate quoted for the AMC will be binding for 3 (Three) years after the warranty period. A separate agreement will be entered into for the AMC between Manufacturer/Supplier/Contractor and Southern railway. Railway on its discretion may enter into AMC for a lesser period or may not enter into the AMC at all. 15. S&T Works Vol.III Page 40 of 61 Clause 31.2 22.5.2 During the AMC period, Manufacturer/ Supplier/Contractor will be responsible for the rectification of defective modules/ replacement of defective module by a new one for restoration of the system. Spare module if available with railways may be utilized for the restoration. In such a situation the Manufacturer/ Supplier/Contractor shall be liable to return the repaired/ new module to railways within 72 hours of handing over the defective modules at their premises. No additional charges shall be payable for such repair/replacement works. Manufacturer/Supplier/ Contractor‟s trained staff shall quarterly visit the installation to monitor the proper functioning of the system as well as preventive maintenance of the system. During this period he shall provide required guidance to the railway maintenance staff as well as preventive maintenance of the system. Manufacturer/Supplier/Contractor should also give free services by way of rectifying design defects in the hardware/software including upgradation/modification to take care of the deficiencies noticed while in service. Replace Clause 31.2 as under:31.2 The work includes excavation of a pit at a given location as per Drg. No. RVNL/S&T/SG033/2005 on natural soil, fixing earth pipe covering the same with a mixture of 2 Kg. of charcoal, 2 Kg. Of common salt and earth. This includes brick masonry around the earth. Page 5 of 27 GI pipe of size 50mm X 3 M with 12mm dia holes on the sides at intervals of 300mm shall be used as earthing electrode. The equipments to be earthed shall be connected to the earth pipe through earthing bonds (20mm flexible insulated hot dipped galvanized multistrand with copper lugs precrimped on both ends) by welding/ pin brazing method. One end of the bond shall be connected to the earth electrode and the other end to the signaling equipment (Block Instrument, lightening arrestor, cable sheath, power equipment, apparatus cases, relay racks etc. as per specification IRS: S-103-2004 and instructions of engineer. Earth resistance shall be measured and painted on the earth piped with date. The earth resistance shall not be more than 10 ohms (for electronic equipment it shall be as prescribed by the manufacturer / manual whichever is less). 16. S&T Works Vol.III Page 41 of 61 Clause 31.3 17. S&T Works Vol.III Page 42 of 61 Clause 34.0 S&T Works Vol.III Page 61 of 61 New Clause 41.0 18. Replace Clause 31.3 as under: 31.3 EARTHING OF EI Earthing of EI equipment and room shall be done as per Drg No.RVNL/S&T/SG -036/2005. Relay room shielding shall be provided as per Drg.no.RVNL/S&T/SG-038/2005 and electrode burial arrangement shall be as per Drg.no. RVNL/S&T/SG037/2005 at EI station. Heading of Clause to be changed as under: “AXLE COUNTER FOR BLOCK PROVING “ Add New Clause 41.0 at the end after Clause 40.0 41.0 Automatic Permissive Block (APB) – Refer Annexure C for Indian Railways General Rules 41.1. Single Line sections working on Automatic Block Working after establishing direction of movement are known as Automatic Permissive Block (APB) 41.2. The block section shall be split into two or more sub sections so that more than one train can follow in the same direction. Page 6 of 27 41.3. The block section shall be fully track circuited or each sub section is provided with Axle counters to detect the passage of train for each signal. 41.4. Inter signal distances between the two signals in the same direction shall generally be one Km., where as main berthing track shall not be less than 690 meters (Distance to hold a full length freight train). 41.5. Four aspect signals shall be used. The aspect control shall be ‘RED-YELLOW-DOUBLE YELLOW-GREEN’. A distance of two Kms shall be ensured between Double Yellow’ signal aspect to ‘RED’ signal aspect to provide full braking distance. In case this distance is less, then the previous signal instead of showing ‘Green’ aspect shall also show ‘Double Yellow’ aspect. 41.6. System of Working: 1) When there is no train in the Block section between the two stations, the controlling Panels of the Station Masters on either side shall show ‘SECTION CLOSED’. All the signals in this condition in the block section shall show ‘RED’ aspect. 2) When any Station Master proposes to send a train, he shall seek line clear from the other Station Master and if agreed, both of them will simultaneously operate their panels as specified for obtaining Line Clear. The sending station shall get Line Clear Indication on his Control panel as ‘Train Going TO’ and the receiving Station Master shall get the indication on his Panel as ‘Train Coming From’. 3) Before the Line Clear Indication is displayed on the controlling panels, the system shall automatically check that all the track circuits in the block section are picked up and there is no train in the block section. 4) If conditions of line clear are met with then all the signals in the section in the direction so established shall display ‘Green” aspect subject to the condition that respective LC gates in the specific signal’ jurisdiction is Page 7 of 27 closed. The opposing signals in the block section shall show ‘RED’ aspect. When a train enters block sections, the TOL indication shall appear on the panels automatically. 5) Trains can follow one after the other in the same direction and all the signals shall work as fully automatic with the passage of trains. 6) When it is desired to reverse the direction of movement, the either end Station Masters after confirming that Block section is clear of all trains, they shall jointly operate their control panel and close the Block section. The system shall check that before closing of the Block section all the controlling track circuits in the Block section are clear of all trains and at station receiving the trains concerned reception and dispatch signals are at on. Once the Block section is closed, the direction of traffic can be established as per requirement by the Station Masters as explained above. 7) In case the section does not clear due to failure of track circuit or any other system failure, the block section shall work on ‘Absolute Block’ principles by following laid down rules till the normal system is restored. 41.7. Working of Level Crossing Gates in APB Section: 1) All level crossing gates in the APB section shall be manned and fully interlocked with the signals. 2) The Gate signals shall display ‘RED’ aspect if the LC gate is open. The road signals for the level crossing gate show ‘Clear’ for passage of road traffic. 3) The controlling Signals for LC Gate shall be provided with Lit ‘AG’ marker. If the Gate is opened, this ‘AG’ marker shall not be lit and the train has to cross the same following normal rules of passing a Gate signal at ‘ON’. Incase the gate is closed the ‘AG’ marker shall be lit and the train shall pass Page 8 of 27 the signal in accordance with rules for passing automatic signal. 4) All gates shall be provided with audio visual ‘Approach Warning’ from a predetermined location. This location shall not be less than four Kms. This distance shall be sufficient to enable Gate keeper to close the LC gate and clear the signals for the approaching train so that the Approaching train gets ‘Clear’ signal from the LC gate and does not slow down. In case the LC gate is located less than 4 Kms. from the station, the prewarning for LC gate shall be given when the Last stop signal of the station has been taken ‘OFF’. 5) The moment Approach warning is received at the LC gate, it shall also give audio visual warning for the road user also so that road traffic stops. Page 9 of 27 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. Annexure A-1 SPECIFICATIONS OF SIGNALLING ITEMS Electronic Interlocking System (EI) as per RDSO specification RDSO/SPN/192/2005. Integrated Power Supply (IPS) System as per RDSO Specification No. RDSO/SPN/165/2000 with latest amendments. Electric Point Machine working on 110V DC, heavy duty nontrailable rotary locking type complete as per IRS-S-24/2002 & Drg. No.S-10910 with clamp lock arrangement as per RDSO drawing no. S-11000 Data Logger as per Specification No. IRS S-99/2001. Operation/Indication panel as per Specification No. IRS S-36/87 or latest. LED Signal Unit as per Specification No.RDSO/SPN/153/2002 with latest amendments. Single Section Digital Axle Counter as per RDSO Specification No.RDSO/SPN/177/2003 ver.1 with latest amendment Un-screened PVC insulated Armoured signalling cable Copper conductor solid/ stranded as per specification No.IRS-S-63/89 with latest amendments. The core of the cable shall be identified as per Para 3.2.5/3.2.6 of the specification. Jelly filled cables as per specification IRS-TC-41-97 with latest amendment. Four quad/Six quad having 0.5 mm dia. or 0.9 mm dia. conductors underground cable for Axle counter/AFTC for use in Railway Electrified areas as per IRS TC-30/97 or (Latest). Indoor cables, copper conductor, PVC insulated and sheathed as per IRS: S76/89 with latest amendments. Single core, solid/stranded Copper conductor, PVC insulated coloured as per IRS: S76/89 with latest amendments. Apparatus case steel single as per drawing No. RVNL/S & T/SG-011/2005 with alteration ‘A’ and 221/82 with alteration ‘B’ (E type lock on both sides). Apparatus case steel half as per drawing No. RVNL/S & T/SG-011/2005 with alteration ‘A’ and 221/82 with alteration ‘B’ (E type lock on both sides). Junction box steel as per sketch No.RE/S&T/ALD/SK/227/82 corrected up to 30.6.86 and 228/82 corrected up to 18.1.93. The key and handle should be @ one each per 2 junction boxes. Track lead Jn. Box as per IRS(s) Drg. No.SA-20101/M made of FRP material (FRP material conforming to RDSO SPN 151/97 or latest) complete with 450 mm long 25 mm dia. pipe. Signal colour light Multi Unit type 4 aspect without side light, signal transformers, lamps and lenses as per RDSO Drg. No.SA-23001 A/M(Adv.) specification IRS:S-26/64 or latest. Signal Colour light multi unit type 3 aspects without side light lenses, lamps and signal transformers as per RDSO Drg. No.SA-23002 A/M (Adv.) latest specification IRS: S-26/64 or latest. Signal colour light multi unit type 2 Aspect without side light lenses, lamps and signal transformer as per RDSO Drg. No.SA-23003 A/M (Adv.) Page 10 of 27 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. latest. The mounting socket should be provided for 140 mm dia. to RDSO Drg. No.S-23005 M (Adv.) Latest. Specification IRS: S-26/64 or latest. Calling on signal unit as per specification no. IRS : S-23/88 or latest. Foundation for main CLS Signal as per drawing no. RVNL/S&T/SG001/2005 Foundation for shunt signal as per drawing no. RVNL/S&T/SG-002/2005 Foundation for SLB/BSLB/SB as per drawing no. RVNL/S&T/SG-008/2005 A/P/G/C Markers as per drawing no. RVNL/S&T/SG-050/2005 Colour Light signalling tubular post as per IRS Spec. No.IRS-S-6-81 or latest, 3.6 metres long. Colour Light signalling tubular post as per IRS spec.No.IRS/S-6-81 or latest, 4.6 metres long. Colour Light signalling tubular post as per IRS spec. No.IRS/S-6-81 or latest, 5.6 metres long. Route Indicator directional type 5 units Arm 1 way as per Drg. No.SA23401 (Adv) latest & spec. IRS:S-66 (latest) complete with fittings but without lamps, lenses and signal transformer along with mounting sockets 140mm dia. to RDSO Drg. No.S-23005/M (Adv.) Latest. Route Indicator Directional type 5 Unit Arm 2 way as per Drg. No.SA23402 (Adv.) latest & spec. IRS:S-66(latest) complete with fittings but without lamps, lenses and signal transformer along with mounting sockets 140mm dia. to RDSO Drg. No.S-23005/M (Adv.) Latest. Route Indicator Directional type 5 Unit Arm 3 way as per Drg. No.SA23403 (Adv) latest & spec. IRS:S-66 (latest) complete with fittings but without lamps, lenses and signal transformer along with mounting sockets 140mm dia. to RDSO Drg. No.S-23005/M(Adv.) Latest. Signal lamps – Holder unit as per Drg. No.S-23030/M & SA-24831. Ladder for colour light signal multi unit type 5.5 metres as per RDSO Drg. No.SA-23156 (Adv.) with latest alteration. Ladder for colour light signal multi unit type 4.5 metres as per RDSO Drg. No.SA-23153 (Adv.) with latest amendments. Ladder for colour light signal multi unit type 3.5 metres as per RDSO Drg. No.SA-23150 (Adv.) with latest amendments. Signal Base for 140 mm dia. post as per IRS(s) Drg. No.S-2011/M with latest amendments. Signal Bracket colour position light for 140 mm outside dia. post as per RDSO Drg. No.SA-23080 (Adv.) latest. OFF set Bracket Suitable for colour light signal, 140 mm outside dia. post. ‘P’ Marker (Non-illuminated) as per Drg. No. RE/S&T/Sig/Tender/SK/ 36/ 85 dated 20.04.85. Signal Cable Marker as per Drg. No. RVNL/S & T /SG-022/2005 Block Section/Shunting Limit Board as per RDSO Drg.No.SA-2373 (Adv.) latest. Cable Trough (GI) for girder Bridges as per Drg. No. RE/ S&T /SIG/ Tender/ SK/22/85 dt. 20.04.85. Earth electrode as per Drg. No. RVNL/S & T /SG-032/2005 Casting of foundation for electrode as per Drg. No. RVNL/S & T /SG033/2005 Earthing of EI equipment as per Drg. No. RVNL/S & T /SG-036/2005 Electrode burial as per Drg. No. RVNL/S & T /SG-037/2005 Page 11 of 27 46. 47. 48. 49. 50. 51. 52. 53. 54. 55. 56. 57. 58. 59. 60. 61. 62. 63. 64. 65. 66. 67. 68. 69. 70. Earthing of Relay Room shielding as per Drg. No. RVNL/S & T /SG038/2005 RCC pipe 150 mm dia. 2 metre long with collars to IS specn. No.458/1971 or latest. Signal shunt position light 2 position as per RDSO Drg. No. SA-23840 (Adv.) with latest amendments. Repeater Luminous Signal green as per IRS Drg. No. SA-23271 C/M with latest amendments. Repeater Luminous Signal Red as per IRS Drg. No SA-23271 A/M with latest amendments. Repeater Luminous Signal Yellow as per IRS Drg. No SA-23271 B/M with latest amendments. Indicator Luminous Stencil type ‘F’ as per IRS Drg. No. SA-23296/M with latest amendments. Indicator Luminous Stencil type ‘L’ as per IRS Drg. No. SA-23295/M with latest amendments. Indicator Luminous Stencil type ‘N’ as per IRS Drg. No. SA-23291/M with latest amendments. Indicator Luminous Stencil type ‘OFF’ as per IRS Drg. No. SA-23293/M with latest amendments. Indicator Luminous Stencil type ‘ON’ as per IRS Drg. No. SA-23294/M with latest amendments. Indicator Luminous Stencil type ‘R’ as per IRS Drg. No. SA-23292/M with latest amendments. Indicator Luminous Stencil type case complete as per IRS Drg. No. SA23297/M with latest amendments. Circuit Controller 2 Way (modified design) lever as per RDSO Drg. No. SA20245 Advance with latest amendments. Circuit Controller 4 Way (modified design) lever as per RDSO Drg. No. SA20266 Advance with latest amendments. Circuit Controller 6 Way (modified design) lever as per RDSO Drg. No. SA20276 Advance with latest amendments. Circuit Controller 8 Way (modified design) lever as per RDSO Drg. No. SA20286 Advance with latest amendments. Double wire circuit controller (Rotary type) 4-way as per Drg.No. SA-22420 Advance with latest amendments. Double wire circuit controller (Rotary type) 6-way as per Drg.No. SA-22430 Advance with latest amendments. Double wire circuit controller (Rotary type) 8-way as per Drg.No. SA-22440 Advance with latest amendments. Electric signal reverser as per IRS: S -19 (latest). Electric lever lock and circuit controller combined 200 mm stroke as per Drg. No. SA-22701 (Advance with latest amendments. Key transmitter - Electric as per IRS – S-21 (latest). Earth Leakage detector single channel/multi channel suitable to work on 110 voltage 50 Hz single phase AC as per RDSO Specification No. RDSO/SPN/256/2002 or latest complete with electro- magnetic counter. Terminal Block (M6- Terminals) as per IRS Specification NO. IRS-S-7591(latest) and IRS Drg. No. SA-23741/Alteration 6 or latest . Page 12 of 27 71. 72. 73. 74. 75. 76. 77. 78. 79. 80. 81. 82. 83. 84. 85. 86. 87. 88. 89. 90. 91. 92. 93. 94. 95. 96. 97. 98. 99. Fuse Link cartridge cylindrical head/ knife edge (2A, 4A and so on) nondeteriorating type, non-indication type as per IRS Specification No. IRS-S78-92 or latest. Indication type of low voltage (0.4A, 0.6A and 1.6 Amp.) Non-deteriorating fuse links for signalling circuit as per latest RDSO specification. Fuse Block as per IRS: S-78/92 or latest and Drg. NO. SA-23748 with latest alterations. Tag Block with cover as per specification no. IRS : S-77/91-200 way and IRS : S-77/99-160 way. SM’s control- Electric as per RDSO specn. IRS: S-48 latest. Block instrument single line Neal’s Ball Token type ‘A’ as per RDSO Drg. No. SA-20701(Advance) with latest amendments. Block instrument double line as per RDSO specn. No. IRS-S-22(latest) similar to SGE token-less block instrument. Single line token-less block instrument to suit RE similar to Daido as per RDSO/SPN/119/91 or latest. Block filter unit as per IRS: S-68/89 (latest). Block bell equipment as per Specification IRS (TC) 44/88 Signal colour light transformer as per IRS specification NO. IRS:S-59 & S-23 and RDSO Drg. No. SA-2301A/M or latest. Axle counter – Universal type IRS-S-42/85 & Drg. No. S- 15602-04(latest). SM’s block panel as per RDSO Drg. NO. S-32001. Multiplexer for Axle counter complete with Transmitter /receiver combiner converter as per RDSO Drg. No. S-32001. Transformer-230 V AC/110 V AC as per IRS Specification No. IRS-S-72/88 (Latest). Indication transformer as per IRS Specification No. IRS-S-83/92 (Latest). Current transformer for lamp proving (H,I,L Type) as per IRS specification No. IRS-S-62/92(Latest). Lock key ‘E’ type as per IRS Drg. No. SA-3376/M with latest amendments. Interlocking Frame Ground type single lever as per RDSO Drg. No. SA-922 (Advance) with latest amendments. Point rodding (Solid) as per IRS Drg. No. S-3635 A with latest amendments. Roller Trestle 2 way as per RDSO Drg. No. S- 3534/M (Adv.) with latest amendments. Roller Trestle 4 way as per RDSO Drg. No. S- 3535/M (Adv.) with latest amendments. Roller standard as per RDSO Drg. No. S- 3538/M (Adv.) with latest amendments. Bottom roller as per RDSO Drg. No. S-3332 and RDSO/SPN/135/93 with latest amendments. Top roller as per RDSO Drg. No. S-3331 and RDSO/SPN/135/93 with latest amendments. Top roller pin as per RDSO Drg. No. S-3540/M (Adv.) with latest amendments. Horizontal Crank 300 mm X 300 mm as per RDSO Drg. No. SA-3414/M (Adv.) with latest amendments. Horizontal Crank 100 mm X 400 mm as per RDSO Drg. No. SA-3415/M (Adv.) with latest amendments. Vertical Crank as per RDSO Drg. No. SA-3412/M (Adv.) with latest amendments. Page 13 of 27 100. 101. 102. 103. 104. 105. 106. 107. 108. 109. 110. 111. 112. 113. 114. 115. 116. 117. 118. 119. 120. 121. 122. 123. 124. Adjustable Crank as per RDSO Drg. No. SA-3416/M (Adv.) with latest amendments. Adjustable straight Crank as per RDSO Drg. No. SA-3417/M (Adv.) with latest amendments. Compensator 2533 mm X 406 mm as per RDSO Drg. No. SA-3504/M (Adv.) with latest amendments. Accommodating Crank ‘Low’ 103 mm centre as per RDSO Drg. No. SA-5852/M (Adv.) with latest amendments. Accommodating Crank ‘Medium’ 103 mm centre as per RDSO Drg. No. SA5853/M (Adv.) with latest amendments. Accommodating Crank ‘High’ 103 mm centre as per RDSO Drg. No. SA5854/M (Adv.) with latest amendments. Accommodating Crank ‘Low’ 125 mm centre as per RDSO Drg. No. SA-5856/M (Adv.) with latest amendments. Accommodating Crank ‘Medium’ 125 mm centre as per RDSO Drg. No. SA5857/M (Adv.) with latest amendments. Accommodating Crank ‘High’ 125 mm centre as per RDSO Drg. No. SA5858/M (Adv.) with latest amendments. Foundation type ‘A’ as per IRS Drg. No. S-3529/M (Adv.) with latest amendments. Foundation type ‘B’ as per IRS Drg. No. S-3536/M (Adv.) with latest amendments. Foundation type ‘B’ as per IRS Drg. No. S-3533/M (Adv.) with latest amendments. Shoe 1 or 2 way as per RDSO Drg. NO. S-5814/M (Adv.) with latest amendments. Shoe joint (Butt end) as per RDSO Drg. NO. S-5817/M (Adv.) with latest amendments. Flange connecting rod (Butt end) as per RDSO Drg. NO. S-3600/M (Adv.) with latest amendments. Angle Slide 1 or 2 way as per RDSO Drg. NO. S-5818/M (Adv.) with latest amendments. Switch Extension piece (BG) LH as per RDSO Drg. NO. S-6063/M (Adv.) with latest amendments. Switch Extension piece (BG) RH as per RDSO Drg. NO. S-6062/M (Adv.) with latest amendments. Lug Eye (Butt end) as per RDSO Drg. NO. S-3631/M (Adv.) with latest amendments. Flush joint 32 mm (Butt end) as per RDSO Drg. NO. SA-6051/M (Adv.) with latest amendments. Solid joint 32 mm (Butt end as per RDSO Drg. No. SA-6050/M (Adv.) with latest amendments. Solid joint 20 mm (Butt end as per RDSO Drg. No. SA-2160/M (Adv.) with latest amendments. Joint Screw 20 mm (Butt end as per RDSO Drg. No. SA-2162 /M (Adv.) with latest amendments. Radial guide standard as per RDSO Drg. No. SA-3831 /M (Adv.) with latest amendments. Radial guide extension bracket as per RDSO Drg. No. SA-3832 /M (Adv.) with latest amendments. Page 14 of 27 125. 126. 127. 128. 129. 130. 131. 132. 133. 134. 135. 136. 137. 138. 139. 140. 141. 142. 143. 144. 145. 146. 147. 148. 149. Radial guide lock driving rod 33 mm as per RDSO Drg. No. SA-3833 /M (Adv.) with latest amendments. Radial guide connection rod 33 mm as per RDSO Drg. No. SA-3834 /M (Adv.) with latest amendments. 3 Section lock bar inclined as per as per RDSO Drg. No. SA-3275 /M (Adv.) with latest amendments. Lock bar driving attachment as per RDSO Drg. No. SA-3243 /M (Adv.) with latest amendments. Clip Lock Bar inside 60 Kg. UIC Rail Clamp Type as per RDSO Drg. No. SA8675 (Adv.) with latest amendments. Clip Lock Bar inside 52 Kg. Rail Clamp Type as per RDSO Drg. No. SA-3560/1 (Adv.) with latest amendments. Clip Lock Bar inside 90R Rail Clamp Type as per RDSO Drg. No. SA-3561 (Adv.) with latest amendments. Lock bar stop 60 Kg. UIC Rail Clamp type as per RDSO Drg. No. SA-8678 (Adv.) with latest amendments. Lock bar stop 52 Kg. Rail Clamp type as per RDSO Drg. No. SA-3591 (Adv.) with latest amendments. Lock bar stop 90 R Rail Clamp type as per RDSO Drg. No. SA-3502 (Adv.) with latest amendments. Roller Path 52 Kg. Rail Clamp type as per RDSO Drg. No. SA-3578 (Adv.) with latest amendments. Roller Path 90R Rail Clamp type as per RDSO Drg. No. SA-3579 (Adv.) with latest amendments. Lock facing point as per RDSO Drg. No. SA-5984 (Adv.) with latest amendments. Lock facing point split stretcher bar (BG) as per RDSO Drg. No. SA-5988 (Adv.) with latest amendments. Lock facing point (H. P. Type) with key locks base as per RDSO Drg. No. S3152/M (Adv.) with latest amendments. Lock facing point (H. P. Type) split stretcher bar (BG) 52 Kg. Rail as per RDSO Drg. No. S-3162 B/M (Adv.) with latest amendments. Lock facing point (H. P. Type) split stretcher bar 90R Rail as per RDSO Drg. No. S-3163 / M (Adv.) with latest amendments. Screw joint adjusting (Butt end) as per RDSO Drg. No. S-3628 / M (Adv.) with latest amendments. Indicator point on trestle with short lamp base as per RDSO Drg. No. S5777/2 / M (Adv.) with latest amendments. Indicator point on trestle with long lamp base as per RDSO Drg. No. S-5777/1 / M (Adv.) with latest amendments. Double HPK lock including ‘E’ type locks and keys as Drg. No. SA-3149/M Alt-1 Point rodding connections for Siemens Electric Point Machine as per RDSO Drg. No. SA-8800-01 (Adv.) with latest amendments. Point connection for IRS rotary point machine complete as per RDSO Drg. No. RDSO/S/3361-62 with latest amendments. Electric Point and Lock Detector with cross protection contacts as per RDSO Drg. No. SA-23331 (Adv.) with latest detectors slide plug to RDSO Drg. No. SA- 23386 (Adv.) latest RDSO specification IRS S: 49 with latest amendments. Point rodding connection for ERICSON Electric Point Machine as per RDSO Drg. No. RDSO/S 3191-92 Alt. 5 (Latest). Page 15 of 27 150. 151. 152. 153. 154. 155. 156. 157. 158. 159. 160. 161. 162. 163. 164. 165. 166. 167. 168. 169. Lens Optical, inside step without hot strip for long-range colour light signal, 213 mm dia., and 102 mm focal length ‘Clear’ as per IRS specn. No. IRS-S-7/92 and IRS-S-10 latest and RDSO Drg. NO. RDSO-S-23060(Adv.) latest. Lens Optical, inside step without hot strip for long-range colour light signal, 213 mm dia., and 102 mm focal length ‘Clear’ as per IRS specn. No. IRS-S-7/92 with latest amendment and IRS-S-10 and RDSO Drg. NO.RDSO-S-23061/M (latest). Lenses clear inside stepped spread light 213 mm dia. x 102 mm focal length as per IRS Specn. No. IRS-S-7/92 & IRS-S-10(latest) and RDSO Drg. NO. S23062 M (Adv.) latest. Lens Optical, outside step for long-range colour light signal, 140 mm dia., and 13 mm focal length ‘Red’ as per IRS specn. No. IRS-S-7/92 with latest amendment and IRS-S-10 and Drg. NO.RDSO-S-23063/M (Adv.) latest. Lens Optical, outside step for long-range colour light signal, 140 mm dia., 13 mm focal length ‘Yellow’ as per IRS-S-10 and Drg. NO.RDSO-S-23064/M (Adv.) latest. Lens Optical, outside step for long - range, colour light signal, 140 mm dia., and 13 mm focal length ‘green’ as per specn. No. IRS-S-7/92 (latest) and IRS-S-10 and Drg. NO.RDSO-S-23065/M (Adv.) latest. Lens Optical, outside step 92 mm dia., 16 mm focal length ‘Lunar White’ as per IRS specn. No. IRS-S-7/92 (latest) and IRS-S-10 and Drg. NO.RDSO-S-23422 (Adv.) latest. Lens Optical inside step with moulded prism for close-up indication 127 mm dia. and 70 mm focal length ‘clear’ as per Specn. No. IRS-S-7/92(Latest) & IRS-S-10 and Drg. NO. S-23421 (Adv.) latest. Lens Optical inside stepped ‘clear’ 101 mm dia. as per Specn. No. IRS-S-7/92 (Latest) & IRS-S-10 and RDSO Drg. NO. S-2743 /M. Lamp Electric for Rly. signalling ‘Clear’ 12 volts, 33 watts, 3 pin double filament, double pole SL-21 of specification NO. IRS-S-57/2002 with latest amendments. Lamp Electric for Rly. signalling ‘Clear’ 12 volts, 25 watts, 3 pin double filament, double pole SL-17 of specification NO. IRS-S-57/2002 with latest amendments. Lamp Electric or Rly. signalling ‘Clear’ 110 volts, 25 watts, 3 pin single filament, double pole SL-33 of specification NO. IRS-S-57/2002 with latest amendments. Lamp Electric triple pole for Rly. signalling ‘Clear’ 12 V, 24 watts, 3 pin double filament, SL-35 or 35-A of specification NO. IRS-S-57/2002 with latest amendments. Lamp Electric for Rly. signalling ‘Clear’ 12 V/4 watt single filament SL-5 of specification NO. IRS-S-57/2002 & IS. 1901 with latest amendments. Lamp Electric for Rly. signalling ‘Clear’ 12 V/4 watt single filament SL-15 of specification NO. IRS-S-57/2002 & IS. 1901 with latest amendments. Lamp Electric 110 V 25 watt as per IRS-S-57/2002 with latest amendments. Lamp Electric 12 V/1.2 watt as per IRS-S-57/2002 with latest amendments. Lamp Electric 12 V/2.4 watt as per IRS-S-57/2002 with latest amendments. Choke type ‘B’ having annealed enamelled copper wire, as per IRS-S65/83 latest. Resistance adjustable 0 to 30 ohms as per Specification No. RE/S&T/ALD/Store/Specn. /12-B dated 11.2.87 and sketch No. Page 16 of 27 170. 171. 172. 173. 174. 175. 176. 177. 178. 179. 180. 181. 182. 183. 184. 185. 186. 187. 188. 189. 190. 191. RE/S&T/ALD/SK/180/81 with Alt. ‘B’. To suit RDSO Drawing No. SA20166/M/Adv/Alt 1-S (S) - 23 or latest). Surge discharger type ‘A’ non-restoring type as per IRS-S-52-76 with latest amendments but without hard ware materials i.e. Bolts, Nuts, Washers etc. and connection cables and Aluminium terminal lugs. Track feed battery charger working on 110 Volts. AC to charge 1 or 2 or 3 or 4 lead acid cells as per IRS Specn. No. IRS-S- 89/93 or latest. Installation of TLJB lead wire bond as per specification no. IRS : S – 103/2004 Fixing of TLJB as per drawing no. RVNL/S & T/SG-058/2005 Commissioning of TC as per Specification no. IRS: S-36/81 Excavation and refilling of trench as per drawing no. RVNL/S & T /SG024/2005 Laying and fixing of GI pipe as per drawing no. RVNL/S & T/SG-025/2005 Audio Frequency Track Circuit as per RDSO Specification No. RDSO/SPN/146/2001 with latest amendments. Half spilit DWC pipe of HDPE in 2 or 3 meter length produced out of full round DWC pipe with ISI 4930 part-II mark on it. Non spilit DWC pipe of HDPE with ISI 4930 part-II mark on it. Battery charger- Dual Bank IRS: S-85/92 with latest amendments. Secondary cell-low maintenance IRS: S-88/93 (latest). Battery chargers as per IRS Specn. No. IRS-S-86/2000 with latest amendments with auto charging facility. Battery charger for maintenance free valve regulated batteries as per IRS – 93/96(B) with latest amendments. Voltage stabilizer Ferro Resonant type as per Specn. No. IRS-S-74/89 with latest amendments. Inverter for Railway signalling installations for ‘On Line’ applications (with Sine Wave Output) as per IRS Specn. No. IRS-S-82/92 (latest). Solar photovoltaic module IRS:S-84/92 (latest). Accumulator lead acid stationary with tubular positive plates to IS-1651 latest 2V each of __AH 10 hours rate of discharge, complete with inter-cell connectors, Bolts & Nuts and acid level indicators (Floats) dry and uncharged. The cells should be subjected to life test as per procedure laid down. Secondary cells maintenance free as per IRS: S-93/96/A with latest amendments. Relay Group 3 Aspect Main Signal Plug in type with 100 terminal base plate (complete with terminal connections and fixing screws) consisting of 13 Nos. of DC neutral miniaturised Relays conforming to IRS Specn. No. S-46(latest) and complete with suitable visual indication of similar to Siemens relay group No. RS-SK-3525/46. Relay Group 2 Aspect Main Signal Plug in type with 100 terminal base plate (complete with terminal connections and fixing screws) and consisting of 10 Nos. of DC neutral miniaturised Relays conforming to IRS Specn. No. S-46 (latest) and complete with a suitable visual indications or similar to Siemens relay group No. RS/SK/3525/67. Relay Group shunt Signal Plug in type with 100 terminal base plate (complete with terminal connections and fixing screws) and consisting of 13 Nos. of DC neutral miniaturised Relays conforming to IRS Specn. No. S-46 (latest) and complete with a suitable visual indications or similar to Siemens relay group No. RE/SK/3525/67. Page 17 of 27 192. 193. 194. 195. 196. 197. 198. 199. 200. 201. 202. 203. 204. 205. 206. 207. 208. Relay Route Group Plug in type with 100 terminal base plate (complete with terminal connections and fixing screws) and consisting of 5 Nos. of DC neutral miniaturised Relays 3 Nos. of miniaturised interlocked relay conforming to IRS Specn. S-46 (latest) and complete with a suitable visual indications or similar to Siemens relay group No. RS/SK/31/0002. Relay Group Point Operation (AC- immunised) Plug in type with 100 terminal base plate (complete with terminal connections and fixing screws) and consisting of 6 Nos. of DC neutral miniaturised Relays 2 Nos. miniaturised interlocked relays, 1 No. DC neutral miniaturised slow to release relay with in built 10 Sec. slow to release with heavy duty contacts to carry 110 Volts DC conforming to IRS-Specn-S-46(latest) & one No. contactor units of 15Amps. normal working current & complete with suitable visual indications to suit Point Operation with 110 volts DC point machine and 60V detection super imposed circuit or similar to Siemens DRS 11 Point Group RS/SK/31/0001. Fail safe Electronics Time Delay Relay as per RDSO Specn. NO. IRS-S61 or with latest amendments to be operated on 60V DC/24V DC. Thermo-Flasher Relay mercury type for operation on 12V DC similar to SIEMENS type No. RSSK 30/0096. Point contactor unit as per RDSO Specn. No. IRS: S-46, S-34, S-23 (latest). Relays – ‘Q’ series neutral line as per Specification BRS : 930 A, BRS: 931 A, IRS : S-34, IRS : S-23. QBCA 1 as per specification BRS 943 QTA2 as per specification BRS 939 A, IRS : S-34, IRS : S-23. Relays (Metal to Metal) as per specification no. IRS : S-46 Relay Racks as per drawing no. RITES/SIG/GEN/011-98 Cable Termination Rack as per drawing no. RITES/SIG/GEN/012-98 Relays – 3 position DC polarised as per IRS: S-31/80 (latest). Relays – neutral line M/M IRS: S-46. Insulated rod joint 32mm Butt end as per RDSO’s Drg. No. SA-3637/M/(Adv.) with latest amendments. Insulation for Gauge Tie Plate (BG) complete with insulating bush and washer each set comprising of 206.1. Insulating Plate for Gauge Tie Plate BG as per RDSO Drg. No.T-10372 or latest – 1 Nos. 206.2. Insulating bushing for insulated stretcher-bar BG as per RDSO Drg.No.T-10368 or latest–3 Nos. 206.3. Insulating washer for insulated stretcher-bar BG as per RDSO Drg.No.T-10371 or latest–6 Nos. Insulation for altering stretcher bars (BG) each set comprising of : 207.1. Insulating plate for altering insulated stretcher bars BG as per RDSO Drg. No. T- 10384 or latest 2 Nos. 207.2. Insulating bushing for altering insulated stretcher bar BG as per RDSO Drg. No. T-10535 or latest – 4 Nos. Insulating for stretcher bars BG, each set comprising of :208.1. Insulating Side Plate for insulated stretcher bars BG as per RDSO Drg. No. T-10367 or latest–2No. 208.2. Insulating bushing for insulated stretcher bar BG as per RDSO Drg. No. T-10368 or latest – 4Nos. 208.3. Insulating washer for insulated stretcher bar BG as per RDSO Drg. NO. T-10371 or latest – 8Nos. Page 18 of 27 209. 210. 211. 212. 213. 214. 215. 216. 217. 218. 219. 220. 221. 222. 223. 224. 225. 226. 227. 228. 229. 230. Insulated Rail Joint Nylon (Four Channel Type) 60 Kg. UIC complete as per RDSO Drg. No. SA-22171(Adv.) latest RDSO Specn. IRS: S-40(latest). Insulated Rail Joint Nylon (Four Channel Type) 52 Kg. complete as per RDSO Drg. No. SA-22101(Adv.) latest RDSO Specn. IRS: S-40 (latest). Insulated Rail Joint Nylon (Four Channel Type) 90 R complete as per RDSO Drg. No. SA-22111(Adv.) latest without iron and steel parts. RDSO Specn. IRS: S-40(latest). Insulated Rail Joint Nylon (Four Channel Type) 75 hour complete as per RDSO Drg. No. SA-22121. (Adv.) latest without iron & steel parts. Specn. IRS: S-40 (latest). Insulated Rail Joint Nylon (Four Channel Type) 60 R complete as per RDSO Drg. No.SA-22131. (Adv.) latest without iron and steel parts. Specification IRS: S-40 (latest). Insulated Rail Joint Nylon Fish-Plate (52Kg) as per RDSO Drg. No.S-22102. (Adv.) with latest amendments. Rail Joint Insulated backing plate (52Kg) as per RDSO Drg. No.S-28107. (Adv.) with latest amendments. Rail Joint Insulated backing plate ‘90R’ as per RDSO Drg. No.S-22117. (Adv.) with latest amendments. Rail Joint Insulated ferrule (52 Kg) as per RDSO Drg. No.S-22108. (Adv.) with latest amendments. Channel pin single Groove 7mm dia. (for 4 mm dia. Bond wire) as per RDSO Drg. No.S-69/A. (Adv.) with latest amendments. Bond wire clip (52 Kg + 90 R Rails) as per RDSO Drg. No.S-22167 (Adv.) with latest amendments. Wire GI Soft 4 mm (8 SWG) As per IS Specn. No.IS-280 with latest amendments. Magneto Telephone Desk Type to RDSO Specification No. RDSO/SPN/TC/79/2000 or latest. Terminal strip 8 Way/10 Way as per IRS Specification No.IRS-S-79/92 with latest amendments and RDSO Drawing No. SA-24811 Terminal Block 1-way PBT 25mm as per RDSO Drawing No. SA-23741/Alt 6 or latest Terminal Block 1-way PBT 60mm as per RDSO Drawing No. SA-23745/Alt 5 or latest Wire Insulator as per IRS specification No.IRS-S-47-74 (latest). Lifting barrier, 10 mtr length for LC gate as Drg. No. SA-7974/M(Adv) with latest amendments. Power operated lifting barrier as per specification No. IRS : S-41/70 Winch for LC gate as Drg. No. SA-8132/A(Adv) with latest amendments Boom lock for LC gate as Drg. No. SA-8158/M(Adv) with latest amendments Single line Axle Counter block proving system with multiplexer and block interface as per RDSO Drg. Nos. – 230.1. 32010-2A, 32010-3A, 32010-4A, 32010-5 & 32010-6 for station with axle counter. 230.2. 32010-2B, 32010-3B, 32010-4B & 32010-6 for station without axle counter. Page 19 of 27 The copy of specifications can be purchased from following sources: 1. 2. 3. 4. IRS specification Manager of Publications, Government of India Civil Lines, New Delhi-110054. Government of India Book Depot 8-K.S.Roy Road, Calcutta-700001. RDSO Specifications & RDSO Drawings: RDSO, Manak Nagar, Lucknow. DOT/TEC/ITD Specification: Khurshid Lal Bhawan, Janpath New Delhi-110001. B.I.S. Specification: Directorate General, Indian Standards Institution, 9Bahadur Shah Zafar Marg, New Delhi. F-Block, Unity Building Narsimharaja Square, Bangalroe 560002. 534- Sardar Vallabh Bhai Patel Road, Bombay. 5- Chowringhee Approach, PO Principal Street, Calcutta-700072. Ahimsa Building (1st Floor) CSCO, 82-83 Sector 27-C Chandigarh 160017. 5-8-56/57, L. N. Gupta Marg, Hyderabad-500001. 117/418-B, Sarvodaya Nagar, Kanpur-208005. C.I.T. Campus Adayar Madras - 600020. Page 20 of 27 Annexure A-2 LIST OF MAJOR CONSTRUCTION DRAWINGS FOR SIGNALLING OTHER THAN RDSO S. No. Description Drawing No. 1 Main Signal foundation RVNL/S&T/SG-001/2005 2 Shunt signal foundation RVNL/S&T/SG-002/2005 3 Foundations for Apparatus case full RVNL/S&T/SG-003/2005 4 Foundations for Apparatus case half RVNL/S&T/SG-004/2005 5 Foundation for BSLB, SLB, Sighting Board RVNL/S&T/SG-008/2005 6 Cable Markers RVNL/S&T/SG-022/2005 7 Excavation of trench in normal soil and RVNL/S&T/SG-024/2005 track crossing 8 Laying of cable in GI pipe RVNL/S&T/SG-025/2005 9 Earthing electrode RVNL/S&T/SG-032/2005 10 Cement concrete enclosure for earthing RVNL/S&T/SG-033/2005 electrode 11 Earthing of EI equipment and room RVNL/S&T/SG-0036/2005 12 Electrode burial arrangement RVNL/S&T/SG-0037/2005 13 Earthing - Relay room shielding RVNL/S&T/SG-0038/2005 14 Relay racks RVNL/S&T/SG-055/2005 15 Cable termination RVNL/S&T/SG-056/2005 16 Supply of apparatus cases full RVNL/S&T/SG-010/2005 17 Supply of apparatus cases half RVNL/S&T/SG-011/2005 ******************** Page 21 of 27 Annexure – B JOINT PROCEDURE ORDER FOR UNDERTAKING DIGGING WORK IN THE VICINITY OF UNDERGROUND SIGNALING, ELECTRICAL AND TELECOMMUNICATION CABLES. A. A number of Engineering works in connection with gauge conversion/doubling/third line are in progress on various railways, which require extensive digging work near the running track, in close vicinity of the working S&T cables carrying vital safety circuits as well as electrical cables feeding the power supply to Cabins. ASM room, RRI Cabin, Intermediate Block Huts (IBH) etc. Similarly, S&T organization under open line or construction units under CAO/C are executing various signaling and telecommunication works requiring digging of earth for laying of cables or casting of foundations for the erection of signal posts etc. RailTel are also executing the work of laying of quad cable and OFC on various Railways as a part of sanctioned works for exclusive use of Railways for carrying voice and data i.e. administrative and control communication, PRS, FOIS etc. or shared by RailTel Corporation of India Ltd. On certain sections digging is also required for laying of electrical cable and casting of foundation for the erection of OHE masts by Electrical Deptt. Generally, these works are executed by contractors employed by these organizations. B. However, while carrying out these works in the vicinity of working signaling, telecommunication and electrical cables, at times, cable cuts take place due to JCB machines working along the track or during the digging work being done by Contractors carrying out the Civil Engineering Works. Similarly, such cable cuts are also resulting due to works undertaken by S&T or Electrical depts. Such Cable faults results in the failure of vital signaling and telecommunication circuits. C. Henceforth, the following joint procedure shall be followed by Engineering, Electrical and S&T (and RailTel organization, wherever such works are being done by them). Officers of the respective divisions and by the Construction Organization, while carrying out any digging work near to existing signaling & telecommunication and electrical cables, so that the instances of cable cut due to execution of works can be controlled and minimized. 1. S&T Department (and RailTel, where they have laid the cables) & Electrical Depts. shall provide a detailed cable route plan showing exact location of cable at an interval of 200m or wherever there is change in alignment so that the same is located easily by the Engineering official/contractor. This cable route plans shall be made available to the DSE/DEN or Dy.CE /C as the case may be by Sr. DSTE/DSTE or Sr. DEE/DEE of the divisions or Dy.CSTE/C or Page 22 of 27 Dy.CEE/C within a reasonable time in duplicate. DSE/DEN or Dy.CE/C will send copies to their field unit i.e. AEN/SE/P.Way & works. 2. Before taking up any digging activity on a particular work by any agency, Sr. DSTE/DSTE or Sr.DEE /DEE of the section shall be approached in writing by the concerned Engg. or S&T or Electrical officer for permitting to undertake the work. After ensuring that the concerned executing agencies, including the contractor have fully understood the S&T and Electrical cable route plan shall permit the work in writing. 3. After getting the permission from S&T or Electrical Deptt. as the case may be, the relevant portion of the cable route plan shall be attached to the letter through which permission is issued to the contractor by concerned Engg. official for commencement or work and ensuring that the contractors have fully understood the cable route plan and precautions to be taken to prevent damage to the underground cables. The contractor shall be asked to study the cable plan and follow it meticulously to ensure that the safety of the cable is not endangered. Such a provision, including any penalty for default, should form part of agreement also. It is advisable that a suitable post of SE (Sig) or SE (Tele) or SE (Elect.) shall be created chargeable to the estimates of doubling / Gauge conversion, who can help engg. agencies in the execution of the work. However basic responsibility will be of the Department executing the work and the Contractor. 4. The SE (P.Way) or SE (Works) shall pass on the information to the concerned SE (Sig) SE (Tele) or SE (Elect.) about the works being taken up by the contractors in their sections at least 3 days in advance of the day of the work. In addition Engineering control shall also be informed by SE (P.Way) or SE (Works), which in turn shall pass on the information to the Test Room/Network Operation Centre of RailTel/TPC/Electrical Control. 5. On receiving the above information, SE (Sig) or SE (Tele) or SE (Elect.) shall visit the site on or before the date of taking up the work and issue permission to the contractor to commence the work after checking that adequate precautions have been taken to avoid the damage to the cables. The permission shall be granted within 3 days of submission of such requests. 6. The name of the contractor, his contact telephone number, the nature of the work shall be notified in the Engineering Control as soon as the concerned Engg. official issued the letter authorizing commencement of work to the contractor. Test Room be given a copy and Test Room shall collect any further details from the Engineering Control and shall pass it on to S&T/RailTel & Elect. officials regularly. Page 23 of 27 7. In case of works being taken up by the State Government, National Highway Authority etc., the details of the permission given i.e. the nature the work, kilometer etc. be given to the Engineering Control including the contact person’s number so that the work can be done in a planned manner. The permission letter shall indicate the contact numbers of Test Room/Network Operations Centre of RailTel/TPC/Elect. Control. 8. Where the nature of the work taken by the Engineering department is such that the OFC or other S&T cables or Electrical cables is to be shifted and relocated, notice of minimum one week shall be given so that the Division/RailTel/Construction can plan the works properly for shifting. Such shifting works shall, in addition, for security and integrity of the cables, be supervised by S&T supervisors/RailTel supervisors/Electrical Supervisors. 9. The concerned SE (P.Way) / SE (Works) / SE (Sig.) / SE (Tele) / SE (Elect.) or RailTel supervisors, supervising the work of the contractor shall ensure that the existing emergency sockets are not damaged in view of their importance in providing communication during accident / emergency. 10. In case of minor nature of works where shifting of cable is not required in order to prevent damage to the cable, the Engineering Contractor shall take out the S&T or optical fibre cable or Electrical cable carefully from the trench and place it properly along side at a safe location before starting the earthwork under the supervision of SE (Sig) or SE (Tele) or SE (Electrical). The cable shall be reburied soon after completion of excavation with proper care including placement of the brick over the cable by the concerned S&T supervisors or Electrical Supervisors. However, the work will be charged to the concerned engineering works. 11. In all the sections where major project are to be taken up/going on RailTel/S&T Deptt. shall deploy their official to take preventive / corrective action at site of work. 12. No new OFC/Quad cable shall be laid close to existing track. It shall be laid close to Railway boundary as per extant instructions i.e. 1.0m from the Railway boundary to the extent possible to avoid any interference with future works (doubling etc.). It shall be ensured in the new works of cable laying that the cable route is properly identified with electronic or Concrete markers. Henceforth, wherever cable laying is planned and before undertaking the laying work, the cable route plan of the same shall be got approved from the concerned Sr. DEN or Dy. CE/Constn. to avoid possible damages in future. Such approvals shall be granted within 7 days of submission of the requests. Page 24 of 27 13. The works of excavating the trench and laying of the cable should proceed in quick succession, leaving a minimum time between the two activities. 14. Any damage caused to OFC/Quad cable or Electrical cable during execution of the work, necessary debit shall be raised on Engineering Department who shall bear the cost of the corrective action. 15. All types of bonds i.e. rail bond, cross bond and structure bond shall be restored by the Contractor with a view to keep the rail voltage low to ensure safety of personnel. 16. Above joint circular shall be applicable for construction as well as open line organization of Engineering, S&T & Electrical. 17. The S&T cable and Electrical cable route plan should be got approved from the concerned Sr. DSTE / DSTE & Sr. DEE / DEE respectively, before undertaking the work and completion cable route plan should be finalized Block section by Block section as soon as the work is completed. Sd/(R.S. Grover) AM (Elect.) Sd/(N.K. Goel) Adv. (Sig) Sd/(R.C. Sharma) AM (Tele) Sd/(R. Sundarajan) AM (Works)” Page 25 of 27 Annexure C EXTRACT OF INDIAN RAILWAYS GENERAL RULES ON AUTOMATIC PERMMISSIVE BLOCK WORKING 9.03 Essentials of the Automatic Block System on single line.(1) Where trains on a single line are worked on the Automatic Block System.(a) the line shall be provided with continuous track circuiting or axle counters, (b) the direction of the traffic shall be established only after Line Clear has been obtained from the block station in advance. (c) a train shall be started from one block station to another only after the direction of traffic has been established. (d) it shall not be possible to obtain Line Clear unless the line is clear, at the block station from which Line Clear is obtained, not only upto the first Stop signal but also for an adequate distance beyond it. (e) the line between two adjacent block stations may, where required, be divided into two or more automatic block signalling sections by provision of Stop signals. (f) after the direction of traffic has been established, movement of trains into, through and out of each automatic block signalling section shall be controlled by the concerned Automatic Stop signal and the said Automatic Stop signal shall not assume 'off' position unless the line is clear upto the next Automatic Stop signal : provided further that where the next Stop signal is a Manual Stop signal, the line is clear for an adequate distance beyond it, and (g) Unless otherwise directed by approved special instructions, the adequate distance referred to in clauses (d) and (f) of sub-rule (1) shall not be less than 180 metres. Page 26 of 27 9.04 Minimum equipment of fixed signals in Automatic Block territory on single line. – The minimum equipment of fixed signals to be provided for each direction shall be as follows(a) Manual Stop signals at a station (i) a Home (ii) a Starter (b)An Automatic Stop signal in rear of the Home signal of the station. Note: Under approved special instructions, the Automatic Stop signal may be dispensed with. 9.05. Additional fixed signals in Automatic Block territory on single line.(1) Besides the minimum equipment prescribed in Rule 9.04, one or more additional Automatic Stop signals, as are considered necessary, in between block stations, may be provided. (2) In addition, such other fixed signals as may be necessary for the safe working of trains may be provided. 9.06 Conditions for taking 'off' Manual Stop signals in Automatic Block territory on single line.(1) Home signal - When a train is approaching a Home signal, otherwise than at a terminal station, the signal shall not be taken 'off' unless the line is clear not only upto the Starter but also for an adequate distance beyond it. (2) Last Stop signal - The last Stop signal shall not be taken 'off' for a train unless the direction of traffic has been established and the line is clear upto the next Automatic Stop signal, or when the next Stop signal is a Manual Stop signal for an adequate distance beyond it. (3) The adequate distance referred to in sub-rules (1) and (2) shall never be less than 120 metres and 180 metres respectively unless otherwise directed by approved special instructions. A sand hump of approved design, or subject to the sanction of the Commissioner of Railway Safety, a derailing switch shall be deemed to be an efficient substitute for the adequate distance referred to in sub-rule (1). S.K.Dhiman General Manager/P-I Page 27 of 27