SPL REPAIR TO BER EM ITEMS AT AF STN PURNEA UNDER AGE I AF PURNEA

Fixing only Industrial heavy duty exhust fan/wall mounted fan in replacement of MS body of any size and capacity with louvers as specified & directed. Note : (i) Item to be provided by MES as Sch 'B' Stores (ii) Necessary T&P, Ladder and transportation cost from MES store Yard to specified location deemed to be included in quoted rate. (iii) Fixing to be done by expert technician only. Any damage cost to the item during fixing to be borne by contractor only.

M & L for Cutting opening in cement concrete walls (any description) for exhust fan and other openings (with or without reveals) or enlarging existing openings, including trimming surfaces to receive rendering, etc.

Fixing only of Hi Wall split type Air conditioners of any capacity complete with Indoor unit(IDU), Out door unit (ODU), surface / concealed copper Refrigerant piping with insulation (closed cell elastomeric nitrile rubber tubular pipe section) upto 3 Mtr (IDU to ODU), copper power cable upto 3.5 Mtr (IDU to ODU) i/c drain pipe including making holes on wall and providing mounting bracket as directed & specified. Note : (i) Item to be provided by MES as Sch 'B' Stores (ii) Necessary T&P, Ladder and transportation cost from MES store Yard to specified location deemed to be included in quoted rate. (iii) Fixing to be done by expert technician only. Any damage cost to the item during fixing to be borne by contractor only.

Fixing only electric water heater storage type steel body and any capacity , including drilling & making hole on wall and fastnut of suitable size & bearing load capacity complete with fixing all accessories such as safety valve, thermostate, NRV, connection piece etc. as directed & specified Note : (i) Item to be provided by MES as Sch 'B' Stores (ii) Necessary T&P, Ladder and transportation cost from MES store Yard to specified location deemed to be included in quoted rate. (iii) Fixing to be done by expert technician only. Any damage cost to the item during fixing to be borne by contractor only.

Supplying, installation, testing and commissioning of 100 KVA capacity (continuous loading) BEE 3 Star rated (Corresponding Level as per BIS amended upto date of receipt of tender) , 11/0.433 KV step down, 3 Phase, 50 Hz, Dyn 11 vector group, ONAN (Oil Natural Air Natural) copper wound transformer (Electrolytic grade 99.9% pure copper, Core made of first grade Cold Rolled Grain Oriented (CRGO) Core grade MOH or better, suitable for out door/indoor applications with Offload Tap Changer in range of ± 7.5% in steps of 2.5%, having cable end boxes on HV side suitable for 3x300 sq.mm XLPE cable of 11 KV grade, including bus trunking arrangement on LV side including supplying and laying of copper conductor multicore control cable from transformer to HT breaker/panel for safety tripping, complete with all accessories and safety provisions as per relevant IS Code including first filling of filtered dehydrated oil, i/c supplying and grouting of suitable M.S. Channel with all accessories and transformer shall be confirming to IS : 2026 (Part 1 to Part 5), IS : 1180 and as per MES specifications complete in all respects etc as required at site. The maximum flux density in any part of the core and yoke at rated voltage and frequency shall be such that the flux density with + 12.5 percent combined voltage and frequency variation from rated voltage and frequency does not exceed 1.9 Tesla. The permissible temperature-rise shall not exceed 35°C for oil and 40°C for winding. Inside of tank shall be painted with varnish or liquid resistant paint. For external surfaces one coat of thermo setting powder paint or one coat of epoxy primer followed by two coats of polyurethane base paint shall be used. IS: 1180 (Part 3) shall be referred to for paint thickness for normal to medium corrosive atmosphere. For highly polluted atmosphere and special application external paint work shall be as per direction of Engineer-in-Charge

Design ambient condition :- (a) air temperature 50°C (b) Relative Humidity 90 % Max (c) Seismic Zone as per location of site (d) Altitude as per location/site. Noise level Shall not exceed limits as per NEMA TR-1 with all accessories running measured as per IEC 551 / NEMA standard. The transformer should have QR code which should contain drawing, test report OEM manual, Geo- Tag of manufacturing location etc. Marking Each transformer shall be provided with rating plate made of anodized aluminium/ tainless steel material securely fixed on the outer body, easily accessible, as per IS: 1180 Part-3. The entries on the rating plate shall be indelibly marked.

Fitting and Accessories :- The following fittings shall be provided:- (a) Two earthing terminals with the earthing symbol (b) Oil level gauge indicating oil level at minimum, 30°C and maximum operating temperature (c) Air release device (for non-sealed type transformers) (d) Rating and terminal marking plates (e) Silica gel breather (f) Drain-cum-sampling valve (¾″ nominal size thread, IS 554) preferably steel with plug for three phase transformers (g) Thermometer pocket with cap (h) Oil filling holes having (1¼″ nominal size thread) with cover (for sealed type transformers without conservator) (j) Lifting lugs for the complete transformer as well as for core and winding assembly (j) Pressure relief device or explosion vent (k) One filter valve on the upper side of the tank (l) Unidirectional flat rollers (m) Inspection hole (n) HV side neutral grounding strip (where one of the HV bushing terminal is connected to earth)

(o) Arcing horns lightning arrestors for HT side – 3 Nos. (p) Bird guard (q) Oil temperature indicator and winding temperature indicators for ransformers with suitable tripping mechanism above permissible limit (r) Additional Neutral separately brought out on bushing for earthing. (s) Non return valve (for conducting pressure test) (t) Pressure relief device or explosion vent (u)Monogram Plate (v) Inspection cover (w) Detachable type radiators with top and bottom shutoff valve. (x) Oil Conservator with Oil level indicator, minimum level marking and drain plug for all transformers of capacity 50 KVA and above. (y) Necessary hardware, clamps, lugs etc. for termination on HV/MV etc. for all transformers.

S & F in replacement centrifugal pump set of capacity 20 HP, 15 KW power rating with sync. Speed 3000 RPM having suction size 100 mm & delivery size 80 mm with total head not less than 40 meter and discharge 25 Liter per second.

S & F in replacement centrifugal pump set of capacity 10 HP, 7.5 KW power rating with sync. Speed 3000 RPM having suction size 65 mm & delivery size 65 mm with total head not less than 20 meter and discharge 19 Liter per second.