Provision of Indicative type (SPDs) surge protection device & Provision of Bonding Ring Network connectivity (BRC) at IPS Room & Relay Room over WAT Division.

B-Supply (Non-UBR)

Supply of Class B&C surge protection Device (SPD) type I & II with visual indication and potential free contract to remote monitoring as per RDSO spec No. RDSO/SPN/165/2012 version 1 3.0 or latest and IEC standard 61643 for signals line 230 V AC application with handling lightning surges of 10/350 microseconds and switching surges of 8/20 microseconds. One set consists of 3 Nos of SPD (Two Nos of B Class (L N, N-E) and one no of C class (L-N)) all enclosed in a box with certification as per latest IEC 61643-11-2011 standard class B&C surge protection device required with Three modules only. Inspection by RITES.

Supply of single pole SPD, Class C 60-110 V AC/DC NO-NC contact pluggable with mechanical health indication certified as per IEC 61643-11. DEHN make or similar. Inspection by RITES.

Supply of single pole SPD, Class C 24-60 V AC/DC NO-NC contact pluggable with mechanical health indication certified as per IEC 61643-11. DEHN make or similar. Inspection by RITES.

Supply of 2.5 sq. mm, Single Core, Multistrand (36/0.3mm), Copper Conductor 4 (flexible), Unsheathed, Flame Retardant Low Smoke and Halogen (FR-LSH), PVC insulated Cable of 1100V grade, Type C PVC Compound as per IS 5831, Conforming to IS: 694-2010 (reaffirmed 2020), ISI marked. Inspection by Railway Representative.

Supply of basic material to construct unit Maintenance Free Earth for Single Earth consisting as per Spec. No. RDSO/SPN/197/2016 Ver 1.0 or latest, bonding connections drawing no. 5 SDO/RDSO/E&B/002. (a) Copper bonded steel electrodes of 3.0 m long, 17.0 mm dia. min. with copper bonding thickness of min 250 micron and UL listed and marked -1 No. (b) Earth Enhancement compound of RDSO approved brand supplied in sealed bags of min 30-35 Kg.- 1 Nos.(c ) Copper Strip of 200mm x 25mm x 6mm to exothermically welded to Earth electrode- 1no.(d)Copper Strip of 300mm x 25mm x 6mm (MEEB) -1no.(e) Copper Strip of 150mm x 25mm x 6mm(SEEB)- 1no. It includes (i)Supply of 35 Sq. mm Multi-strand Single Core PVC insulated Copper Connector as per IS:694 for connecting Main Earth Electrode to MEEB in the equipment room induplicate.-10 m. (ii)Supply of 16 Sq. mm Multi-strand Single Core PVC insulated Copper Connector as per IS:694 for connecting MEEB to SEEB and SPDs to MEEB.-10 m. (iii)Supply of 10Sq. mm Multi-strand Single Core PVC insulated Copper Connector as per IS:694 for connecting various equipment to SEEB10 m. As per RDSO spec. for Desire Earth Resistance less than 1(one)Ohms. Inspection by RDSO.

Supply of 10 Sq. mm PVC insulated Single core Multistrands copper conductor 6 (Red/Black/Green) as per IS:694/2010 or latest, as per Specification No. IRS:S-76/89 or latest. Colour of the wire which is required will be specified by the Engineer incharge. Inspection by railway representative.

Supply of 16 Sq. mm PVC insulated Single core Multistrands copper conductor 7 (Red/Black/Green) as per IS:694/2010 or latest, as per Specification No. IRS:S-76/89 or latest. Colour of the wire which is required will be specified by the Engineer incharge. Inspection by railway representative.

Supply of 35 Sq. mm PVC insulated Single core Multistrands copper conductor 8 (Red/Black/Green) as per IS:694/2010 or latest, as per Specification No. IRS:S-76/89 or latest. Colour of the wire which is required will be specified by the Engineer incharge. Inspection by railway representative.

Supply of 50 mm x 6 mm Galvanised steel tape for interconnecting the earth pits. Inspection by railway representative.

Supply of 25mm x 2 mm bare copper strips in the equipment room. Inspection by RITES. Above/

Design of SIP & submission of Three paper copies for approval. For a Four-Line Station

Design of SWRD & submission of Three paper copies for approval. For a Four-Line Station

Design of Track Bonding Plan & submission of Three paper copies for approval. For a Four-Line Station

Design of Miscellaneous Diagrams consisting of the items as mentioned below & 4 submission of Three paper copies for approval. (i) Floor Plan of Relay Room, Battery Room, Power Equipment Room, Data logger room etc. (ii) Power Supply Diagrams along with power supply calculation. (iii) Earthing Diagram. For a Four-Line Station

Design of Miscellaneous Diagrams consisting of the items as mentioned below & 5 submission of Three paper copies for approval. (i) Floor Plan of Relay Room, Battery Room, Power Equipment Room, Data logger room etc. (ii) Power Supply Diagrams along with power supply calculation. (iii) Earthing Diagram. For a Six-Line Station

Supply of Original Tracing of SIP after incorporating all the corrections. For a Four-Line Station

Supply of Original Tracing of SWRD after incorporating all the corrections. For a Four- Line Station

Supply of Original Tracing of Track Bonding Plan after incorporating all the corrections. For a Four-Line Station

Supply of Original Tracing of Miscellaneous Diagrams consisting of the items as 9 mentioned below after incorporating all the corrections. (i) Floor Plan of Relay Room, Battery Room, Power Equipment Room, Data logger room etc (ii) Power Supply Diagrams along with power supply calculation. (iii) Earthing Diagram. For a Four-Line Station

Supply of Original Tracing of Miscellaneous Diagrams consisting of the items as 10 mentioned below after incorporating all the corrections. (i) Floor Plan of Relay Room, Battery Room, Power Equipment Room, Data logger room etc (ii) Power Supply Diagrams along with power supply calculation. (iii) Earthing Diagram. For a Six-Line Station

Supply of Ammonia Print of Approved SIP. For a Four-Line Station

Supply of Ammonia Print of Approved SWRD. For a Four-Line Station

Supply of Ammonia Print of Approved Track Bonding Plan. For a Four-Line Station

Supply of eight sets of Ammonia Print of Approved Completion SIP. For a Four-Line Station

Supply of eight sets of Ammonia Print of Approved Completion SWRD. For a Four-Line Station

Supply of eight sets of Ammonia Print of Approved Completion Track Bonding Plan. For a Four-Line Station

Supply of Eight sets of Ammonia Print of Approved Completion Miscellaneous 17 Diagrams consisting of the items as mentioned below. (i) Floor Plan of Relay Room, Battery Room, Power Equipment Room, Data logger room etc (ii) Power Supply Diagrams along with power supply calculation. (iii) Earthing Diagram. For a Four-Line Station

Supply of Eight sets of Ammonia Print of Approved Completion Miscellaneous 18 Diagrams consisting of the items as mentioned below. (i) Floor Plan of Relay Room, Battery Room, Power Equipment Room, Data logger room etc (ii) Power Supply Diagrams along with power supply calculation. (iii) Earthing Diagram. For a Six-Line Station Above/

A1-Execution (UBR)

Excavation of trenches of following depth and width 0.3 Meter detailed below including clearing of roots and trees etc. for all types of soil. This work also includes covering of cables laid in trench and backfilling, ramming, consolidation of soil as well as disposal of extra soil 1 after cable is laid as specified in Guidelines on Signalling Cable laying given by RDSO and any latest circular issued by CSTE/ECoR/BBS. Note: Before refilling of the trenches, the cable laid are to be tested and recorded for its insulation value and after satisfaction of site Engineer the refilling process should start and after monsoon the route is to be attended for backfilling the rain cuts, wash out of soils where ever found. 1.0 Meter.

Excavation of trenches in all kinds of soils including soft rocky area and clearing of track etc. to a depth of 1.0 M and width of 0.3 M for track crossing /pucca road/level crossing gate/platform/ station circulating area or any other place as advised by site Engineer including 2 transportation and laying of DWC/RCC/Split RCC/G.I. pipes with or without coupler. This includes repairing of track/pucca road/level crossing gate/ platform/station circulating area surface to original position by ramming and concreting wherever required soon after the work is over. DWC/RCC/GI pipes shall be supplied by the Railway. DWC pipes wherever required shall be supplied in 6 Mtr. length and shall be cut to size as per requirement. All other materials including cement are to be supplied by the contractor.

Concreting (1:1.5:3) at a height of 150 mm & width of 0.3 m after laying of cables where it is not possible to dig up to full depth of 1.2m/1.0m/0.8m in normal soil due to existing cables are in the trench, culverts, bridges. All materials including cement and chips of size 20mm. etc. to be supplied by the contractor. Payment for the depth of trench to be paid in proportionate to the rate specified for 1.2 mtr depth (excluding the concreting rate).

Cutting of masonary floor/walls at station building/ signal goomty/ Gate lodge at a depth of 0.5 mtr to 1.0 mtr at places to be indicated by site Engineer for entering of cables inside the 4 building. Only G.I pipes supplied by Railway and all materials as clamps, bolts & nuts as instructed by site Engineer supplied by tenderer. This includes repairing of masonary floors/walls after the cables are taken inside. Cement, Sand required for the work shall be supplied by the tenderer and also transportation of G.I Pipe from Store by the tenderer.

Laying of Signalling/4 Quad/ 6 Quad/ Power Cable/Telecom cables/ Jelly filled cables of all sizes in excavated trench, through GI/RCC/DWC pipes etc. wherever required. This includes transportation of cables from the stores to work site and transportation of empty cable drums with left 5 over cables from site to the stores. The length of cable laid includes the length of cable coil for termination purpose. NOTE: The cables are to be carefully handled during loading, un-loading and transportation to work site. Any damage found in the cable after final testing, in view of mishandling of cables, shall be made good by the Tenderer. Cable should be meggered before and after laying and recorded in a register and submitted to the site Engineer.

Alteration of wiring in existing apparatus cases full/half. This includes supply of all 6 materials in connection with alteration in wiring. All the materials shall be supplied by the contractor at his own cost. This includes entry of cables, sand filling and masonry work involved. Lettering and painting to be done by the contractor at his own cost. Railway shall supply only relays and relay bases.

Supply, Transportation and Installation of earth electrode (make TATA or Jindal as per Rly. practice) including MS flat for signalling equipment on lever frame, apparatus cases, signal, relay racks, cable termination rack, block instrument etc. (supply & installation of earth electrode as per drawing no. RE/S&T/DRG/Tender/SK/ 398/94 for apparatus cases, signal post & other equipment as 7 per instruction on earthing of S&T equipment. Laying of earth lead| mild steel flat of size 35mmx6mm and fixing of lead MS flat (make TATA/Jindal or Similar) to earth electrode and lever frame, signal post & apparatus cases as per Drg. No. CORE/S&T/ALD/SK/591/ 2008, 592/2008 and 593/2008 respectively and instructions on earthing at S&T equipment and providing cement enclosure for earth electrode as per drawing no. RE/S&T/Sig./Tender/SK/13/85 Alt. A) NOTE: This includes testing of earth value and indicating the same on the Earth enclosure by paint. Inspection by Railway Representative. Above/

A2-Execution (Non-UBR)

Installation of Single Maintenance Free Earth pit asper RDSO Drawing No. SDO/RDSO/E&B/001 which includes the following: - a) Digging/ Auguring/Boring of single earth pit of 100mm to 125mm dia. to the depth of approx. 3meter. b) Insertion of 3.0-meter electrode and penetrating it minimum 150 mm by pushing gently with sledge hammer where the natural soil is assumed. (c) Filling of earth pit with Earth Enhancement Compound (EEC) in slurry form and 1 backfilling. (d) Carrying out exothermic weld connection on single earth electrode to a copper tape of 200 x 25 x 6 mm. (e) Carrying out exothermic weld connection on the copper tape of200 x 25 x 6 mm on Earth Electrode for connecting four 35 Sq. mm cables for redundancy. (f) The exothermic welding material for bonding the earth system shall be procured from RDSO approved firms, which includes graphite modules, clamps, weld metal powders. (g) The dimension of the chamber will be of 300 x 300 x 300 mm (inside dimension) of RCC with 50mm thick and fine finish, Inspection chamber should be as per IEC 62561-5 or latest. The top RCC cover size shall be 400mmX400mmX50mm. The date of testing and earth resistance value shall be written on the cover with black base with yellow paint.

Routing and connecting all the equipment in the equipment/relay room to SEEB/BRC 2 with 10 sq. mm copper cable using copper lugs with stainless steel nut and bolts and fixtures. The work includes laying and routing the copper cable in PVC /conduits and fixing them on wall. This includes supply of copper lugs, stainless steel nut and bolts, PVC conduits and fixtures.

Routing and connecting of all the SPDs in the equipment room/SEEB/BRC to MEEB with 16 sq. mm copper cable using copper lugs with stainless steel nut and bolts. This includes supply of copper lugs, stainless steel nut and bolts.

Digging a trench to a depth of at least 0.5 meter and run the two 35 sq. mm earth conductor (procured against supply item) from Earth pit to MEEB. Routing and exothermic termination 4 of four 35 sq. mm earth conductors in trench from earth pit to 300 x 25 x 6mm MEEB, which is to be fixed inside the equipment room with two 60mm insulation studs. This includes termination of earth conductors at MEEB using copper lugs with stainless steel nut and bolts. This includes supply of insulation studs, copper lugs, stainless steel nut and bolts.

Digging a trench to a minimum depth of 0.5 meter and laying 50x6 mm bare Galvanized steel tape (Interconnecting tape) connecting all the earth pits. Routing and laying 50x6 mm Galvanized steel tape connecting all the earth pits. Carrying out exothermic weld connections on 5 all the earth electrodes to Galvanized steel tape of size 50x6mm for interconnecting the earth pits. It shall be ensured that the distance between any two earth electrodes shall be minimum 3 meter (length of the earth electrode) and max up to 6 meters (twice the length of the earth electrode) to avoid mutual resistance effects. This interconnecting tape shall also be covered with approximately 30 Kg of earth enhancing compound for each 3 meters length. Earth enhancement compound 10Kg along each meter also to be spread along the Galvanized steel tape.

Routing and termination of 25x2 mm Copper tape/8 mm solid copper round conductor which is to be fixed inside the equipment room with 60mm,6KVA insulation studs including supply of insulation studs. The separation of the two successive insulation stud should be 600mm apart.

Provision of Cement concrete enclosure for Earth electrode as per approved drawing RDSO Drawing No. SDO/RDSO/E&B/001. All the sundry materials to be supplied by the contractor.

Painting of two coats of synthetic enamel paint over one coat of primer on the 8 following after scraping & cleaning surface wherever necessary with supply of paints. Note: The paint and primer should be of Asian Paints/ Nerolac / Dulux / Berger. The primer / enamel paints (Aluminium synthetic, black enamel, brilliant white, grey and yellow) will be as per (IS:5660 of 1998 or latest) / (IS:2932 of 2003 or latest). Apparatus Case Full Size. (Outside & inside)

Lettering / Numbering of termination particulars, equipment names etc., legibly and neatly inside location boxes. This includes supply of paints of make Asian Paints/ Nerolac / Dulux / Berger or better. Apparatus Case Full Size.

Exothermic welding in relay room, IPS or any indoor room as per STS/E/TAN/3006 ver 3.0

Exothermic welding for any outdoor work for earth connection as per STS/E/TAN/3006 ver 3.0

Full Location: Supply and fixing of GI Flat of size 1050x25x3mm to connect all cable 12 armours to earth point with suitable nuts/bolts as given below. A) GI nuts/bolts of size 8x25mm with Two flat and one spring washer of 23 sets. B) GI nuts/bolts of size 12x40mm with two flat and one spring washer of 02 set as per site incharge. Per Unit = Per Location Box.