Supply and Erection of Material for Increasing Capacity of 33/ 11 KV S/S (2x8 to 8 Plus 10 MVA) Sikandra, Distt.Prayagraj, under Summer Plan 2022-23 on Semi Turnkey Basis

SUPPLY & ERECTION OF MATERIAL

Erection of 33 KV lightening arrestor in switch yard. Work includes Erection of 3 Nos.33 KV Lightening arrestor, its fitting and mounting with care. only labour and T&P shall be provided by the contractor.

Erection of complete 33 KV VCB with structure in switchyard and grouting of VCB Structures. C.T. Structure by cement, sand, brick ballast mortar in ratio 1:3:4. Work includes complete fitting of VCB and C.T. on structure carefully with making all connections of control cable for operating the VCB and C.T. Only VCB, C.T., Battery and battery chargar and their structure shall be provided by the department. All other item like cement, concrete material, T&P shall be provided by the contractor. Work also includes installation and commissioning of Battery and Battery charger.

Installation of 33 KV transformer control pannel in the switchgear room and grouting the pannel by rag bolt using cement, sand mortar in ratio 1:3. Work includs fitting of all accessories in all respect with complete connection of control cable with pannel.Grouting material will be provided by the Contractor.

Erection of 33 KV post Insulators in Switch yard. Work includes Installation of 3 Nos. 33 KV Post Insulator its fitting and mounting with care. only labour and T&P shall be provided by the contractor.

Repairing of Existing T/F plinth size 4.46 x 3.46 x 1.0 Mtr.

Dismantling of Switchyard fencing for safe shifting of old 8/10 MVA power T/Fs

Safe Shifting & dragging of old 8 MVA T/F from inside to out side of Switch Yard after detaching its accessories i.e. Radiator, conservator etc and empting the T/F i.e taking out the T/F oil and disconnecting all 33 KV and 11 KV connections as well as dismantling of 11 KV cable stand and neutral stand. All tools & T&P shall be provided by the contractor.

Safe shifting and dragging of 10 MVA Power Transformer from outside of Switch Yard to inside of Switch Yard taking precautions to avoid damage of bushings of Transformer and other accessories. All tools, T&P etc shall be provided by the contractor.

Erection of 10 MVA Power Transformers on plinth, fixing of all accessories like radiator, conservator tank etc. complete and filling of T/F oil in Transformer complete in all respect.

Special earthing of neutral and body of 10MVA T/F with the help of 3 Nos.G.I. pipe 40 M.M. dia. length 20 feet. G.I. pipe for making of delta, and 2 nos for body earthing complete in all respect and connected with 50x6 m.m GI Strip. G.I. Pipe, G.I. Strip etc. required for completion of work in all respect shall be provided by the Contractor.

Earthing of 11 KV indoor equipments, switch gears as per RESPO Drawing. with G.I. Strip of Size 50x6 mm, provided by which will be the contractor.

Earthing of 33 KV C.T. Structure complete as per schedule with 50x6 mm.G.I. Strip. All earthing material shall be provided by the contractor.

Special earthing of lightening arrestor structure with 6 Nos. additional 40 mm dia 2.5 Mtr. Long G.I. pipe electrodes/rod by digging 3 Mtr. deep pits and connecting it with L.A. through G.I. Strip 35x6 mm welded at both ends. All the material Like G.I. pipe, G.I. strip shall be provided by the contractor.

painting of All structure and equipment inside the switch yard with two coats of red oxide primer and thereafter two coats of aluminium paint, giving silver white finish, painting is to be done after proper cleaning of the structures. paint, primer, thinner etc. required shall be provided by the contractor himself.

Installation of 11 KV VCB in the switch gear room, by grouting base channel 100 x 50 x 6 x 1000mm. Fixing of 11 KV switchgears rag bolt, mounting of P.T. on incoming.

11 KV Incoming

Laying of 11 KV 3 x 70/120/185/300 Sqmm. XLPE power cable by digging 0.75 Mtr. deep trench, putting layer of sand in the bottom, ramming it, laying of cable over it RMT and covering the cable from sides and top by laying bricks, finally covering the same by earth and levelling of the same, all the materials, except cable, will be provided by the contractor. Rates may be quoted per RMT

Construction of cable trenchs for L.T. cable for station T/F in the switchyard as per direction of engineer. trenchs to be 12” wide and 9” deep. work includes digging, of trench, concreting of the foundation in the ratio 1:3:6 R.B. wall 9” wide with cement mortar 1:4 and plastering inside the trench in the ratio 1:3 and sand filling in the trench. All material will be provided by the contractor.

Cartage of materials from store center Naini to site, like as 33 KV VCB, Cantrol Panel, C.T, Post Insulator ,Lighting Arrester, Cable, 24 volt battery charger etc.

Termination of cable boxes of size , 11 KV 3 x 300 Sqmm. Joniting Kits, Shall be Provided by contractor.

Indoor

Outdoor

Fabrication and fixing of cable support channel of size 125 x 65 x 6mm. 3.5 Mtr. long and grouting with mortar 1:3:6 ratio in switch yard.All the material , shall be provided by the contractor.

Fabrication and fixing of neutral strip support of T/F made of 65x65x6mm. 3.5 mtr. long and grouting with mortar 1:3:6 ratio in switch yard.All the material such as cement, concrete except strip shall be provided by the contractor.

Laying of following copper control cable form C.T. T/F to transformer control pannel/protection Board. All control cable shall be supplied by the contractor.

Installation of 24 volt Battery & Battery Charger shall be provided by the Depratment

Following items shall also be provided by the contractor at the Sub-station.

Hand Gloves

Rubber Matting

GANGA ELECTRICALS

J.P. Electric Works

M/s R.V. Construction Company

Om Engineering Enterprises

M/s Samdariya and Company

M/s PRABHAT ENTERPRISES

Urmila Associates

M/s Lucky Enterprises