Name of work: Supply, Installation, Trenching/HDD/Clamping, Laying of Duct, Blowing of OFC through Ducts, Splicing, Testing & Commissioning for OFC Shifting/Replacement work in various sections of Mumbai Territory of Western Region.

01-Schedule of Rate/Requirement (Mumbai Territory)

Supply of 24F optical fiber cable(Armoured) as per RDSO spec No.IRS:TC-55/2006 (REV.1) with amendment 1.1 or latest with fiber as per ITU G652D Specs.

Supply of 48F optical fiber cable(Armoured) as per RDSO spec No.IRS:TC-55/2006 (REV.1) with amendment 1.1 or latest with fiber as per ITU G652D Specs.

Supply of HDPE duct with dia 40/33 mm OD/ID

Trenching to a depth of 1.2 mtr and appropriate width for pipe/duct/cable and backfilling after laying OFC as per site requirement

Horizontal Drilling at approximately 1.65 m depth below the formation level of the earth including insertion of DWC/HDPE pipe along with coupling etc.

Splicing of Optical fiber cables (24F) and testing. This includes supply of all type of relevant materials and any other equipment of all type.

Splicing of Optical fiber cables (2x 48 fibers) and testing. This includes supply of all type of relevant materials and any other equipment of all type.

Laying of single 40/33 mm OD/ID HDPE duct in the trench & through PPRC/GI/DWC pipe used for protection

Laying of OFC in trench and through HDPE/GI/RCC pipes where ever necessary

Supply & provision of OFC Joint Closure including splicing (24 Fiber) The Joint enclosure shall be TVSE, raychem model FOSC, ROXTEC, 3-M make

Supply of straight joint enclosure (SIC) complete with all accessories as per TEC specification no. GR/OJC-02/02 Sep 2003 with latest amendement for 48 fiber of reputed make Raychem/3M/Tyco/TE make only.

Supply RCC/Pre-fabricated OFC joint pit with top & OFC joint pit with top & bottom cover as per drawing size 1*1*6m

Installation of OFC pit supplied vide item 12, duly filling with river sand after joining work is done

Supply of RCC/FRP route marker with "Railtel OFC" stenciled in white on both sides, and painted bright orange ASIAN paint in case of RCC, as per drawing. Marker size(800mm*300m*900m) min with minimum of 8 mm wall thickness in case of FRP.

Installation of OFC/RCC route market supplied vide item no. 14

Supply of plastic coupler slip fit type for HDPE duct 40/33 mm OD/ID

Supply transportation and laying of 75 mm dia class B GI pipe ISI1239 medium grade with holes drilled as an anti theft measure with threads on either end for coupling.

Protective works to enable the laying of OFC in GI pipe of 65mm ID on grider bridges, masonry bridges, Tunnels, cutting, culverts & other specific locations etc. This also include supply and fixing of Ms channel, RCC pipes as support, trenching & backfilling, concreting, support pillars, brick work, clamping on walls etc. after laying and all other required material to suit the site 18 condition to restore back the surface to original as detailed in the technical supplement & advised by the engineer at site. This will include supply of standard ISI approved GI pipes of 65 mm ID and all its accessories. Inside this suppkied GI pipe pulling of HDPE duct is to be done. Details as per drawing no. RAILTEL/WR/OT/DFC/006(a),RAILTEL/WR/OT/DFC/006(b),RAILTEL/WR/OT/DFC/007,RAILTEL/WR/OT/DF

Transportation of OFC/ joint Pits/HDPE duct & other required material from Railtel store to site of work & depositing remaining material back at Railtel store including loading, unloading etc.

Sand Filling in chamber

Cutting hard Rock for 0.3 mtrs depth of the trench by blasting/ chiselling/ jack hammering.

Rectification of high loss/break of fiber in existing joint enclosure: Excavation of trench or opening/finding the existing joint pit approx. 100 mtr. as a preparation for testing.

Concreting for protection of OFC cable Concreting to be provided: In rocky areas where trench is of low depth and OFC is to be protected. At Bridges/Culverts to protect OFC on approaches.

Preparation of Cable Route Plan after carried out survey the work as per the engineering practices are mentioned in the tender document the plan should be made in Auto Cad indicating the depth.

Final Testing and Commissioning of OFC (hopewise as well as end to end) as per Technical Specification with test report Node/Joint to node/joint as per the site requirement.