PACKAGE : I Bid Document VOLUME : II - Public Health Engineering

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Design shall be based on Criteria for Design of RCC Staging for Overhead Water Tank as per IS11682-1985 reaffirmed 1998 as well as the provisions of the latest edition of relevant IS. 456-1978 third revision Amendment-2, I.S. 3370 Part-I & <strong>II</strong> of 1965 and Part-3 and Part-4 of 1967, being reaffirmed 1991along with subsequent amendments, I.S. 875 (1987) Part-I to Part-5, second revision being reaffirmed in 1992 with all up-to-date amendments, I.S. 1893 (1984) Fourth revision amendment- 1 being reaffirmed in 1991 with subsequent amendments if any, I.S. 1904 (1986) third revision being reaffirmed in 1995 including up-to-date amend if any. Design Calculation & Drawings. The design calculation and drawings shall be worked out in metric or S.I. units. The drawings shall comprise of the following. General arrangement drawing showing clearly all the elements of the structure and other appurtenances. The relative levels shall be shown clearly. Structural drawings showing details of reinforcement of all elements, Constructions joints, movement joints, Architectural & building drawing Code of practice etc, confirming to I.S. 962 (1989) Second Revision, I.S. 7973-1976 being reaffirmed during 1991, I.S. 2502-1963 being reaffirmed during 1990, I.S. 5525-1969 being reaffirmed during 1990 and other relevant I.S. Standards of latest edition with up-todate amendment shall be furnished. Detailed drawings showing the handrails stainless steel ladders, fixing of pipes, specials in floor manhole cover etc. shall be furnished. 25.6 Testing for water tightness For water retaining structures above ground level, the requirement of the test shall be deemed to be satisfied if the external face shows no sign of leakage and remain apparently dry over a period of observation of seven days after filling upto maximum water level and allowing seven days period for absorption. In case of ground structures with top covered, the tanks shall be deemed to be water tight if the total drop in water level over a period of seven days does not exceed 40mm. If the structure does not satisfy the condition of the test period, the test may be extended for a further period of seven days and if the specified conditions of the test are satisfied the structures shall be considered to be water tight. In case of unsatisfactory test results, the contractor shall ascertain the cause, make all necessary repairs and repeat the procedure until the test has been passed satisfactory at no extra cost to the employer. DTS : Detailed Tender Specification. Page 284
A. Electro-Mechanical Chapter 26 Vendor List 1. Sluice Valve IVC/Kirloskar/L&T/Kalpana/Upadhyay 2. Non Return Valve IVC/Kirloskar/L&T/Kalpana/Upadhyay 3. Butterfly Valve IVC/Kirloskar/Fouress/L&T/Craw- Ley & Roy 4. E.O.T / H.O.T Crane Batliboi (Hercules/Indef)/W.H. Brady/Moris/ Plicare/Surekha 5. a) Pump – Vertical Kirloskar/Mather & Platt/WPIL/Jyoti (b) Pump – Horizontal Kirloskar/Mather & Platt/WPIL (c) Sludge / Dewatering Pump KBL/KSB/Kishore/SU/MBH (d) Vacuum Pump KBL/Kay International 6. Kinetic air valve/pressure release (zero velocity) Valve Upadhyay/IVC/KBL/Sure Seal 7. Fire Extinguisher Mini Max/Surex/Andrew Yule 8. Rubber Gasket (Tyton) Orient Rubber/Popular 9. Dismantling / Expansion Joint D. Wren/Schrader 1. H.T/L.T. Motor CGL/ABB/Alstom/Siemens 2. Power & Control Cable Fort Gloster/NiCCo/CCI/Universal/Polycab 3. MCC/HT/LT Switch Board L&T/Siemens/Schneider/BCH/ABB/Alstom 4. Exhaust Fan Bajaj/Alstom/Khaitan/Crompton 5. Illumination Fittings/ Fixture (Luminaire) Philips/Bajaj 6. CT/PT Kappa/BCH/IMP/Automatic Electric/CGL/ Jyoti/Alstom/Indushree 7. Power Transformer CGL/Alestom/KEC/AEG/TRUE Volt/NGEF 8. Control Transformer Indushree INDCOIL/Siemens 9. Voltmeter & Ammeter / KW Meter IMP/Automatic Electric/Rishob/Simco 10. D.O.L & Star Delta Starter L&T/Siemens/Andrew Yule/System Control /GE (a) FASD Starter Schneider/Siemens/L&T/ABB/Allen-Broad Ley (b) Switch Fuse unit L&T/English Electric/Siemens/Schneider 11. L. A. CGL/WSI/Elpro/ICE/Oblum 12. Battery Exide/Amco/Standard 13. Battery Charger Caldyne/Electro Service 14. 400 V L.T., Air Circuit Breaker L&T/Siemens/Schneider 15. MCCB / MCB L&T/Siemens/Schneider 16. Electronic over load Relay L&T/Siemens DTS : Detailed Tender Specification. Page 285
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Government of Meghalaya Public Heal
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1.1 Materials. Chapter 1 General Te
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IS: 1786 - 1985 Specification for h
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IS: 1500 - 2005 Methods for brinell
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Cement bags brought to the site mus
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Laying : The cement, sand and stone
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1.6 Reinforced Cement Concrete. All
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Expansion joints. Expansion joints
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1.16 Conservation water. Special Co
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oads, protection to existing underg
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the relevant standards and codes in
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1.33 Demolition. Before commencing
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Motors, gearing, transmission, elec
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Construction Camps :The Contractor
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2.1 Description. Chapter 2 Submitta
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3.1 Clearing site. Chapter 3 Site p
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Chapter 4 Dismantling 4.1 Dismantli
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5.1 Description. Chapter 5 Earth Wo
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The trench shall be so dug that the
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5.12 Excavation for appurtenance. E
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5.16 Caution cum information boards
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f) Before and during the backfillin
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6.1 Brick work. Masonry Mortars: Pr
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6.4 Scaffolding. Scaffolding shall
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Half or cut bricks shall not be use
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7.1 Concrete. General: Chapter : 7
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) Gradation: (I) Unless otherwise d
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Dropping of concrete from an excess
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Cement: Cement shall, whether suppl
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Coarse aggregate shall be piled in
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Grades of concrete: The concrete sh
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Uniformity of mix: Concrete shall b
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Vibration: Vibrators shall be inser
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Jointing: The face of a constructio
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8.1 Material. Chapter 8 Form Work A
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8.3 Removal of Forms and Shoring. F
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9.1 General. Chapter : 9 Reinforcem
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9.6 Dowels. Where and as designated
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(viii) Increased cover thickness sh
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10.1 Definitions. Chapter : 10 Plas
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The fine aggregate for cement morta
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Roughness: Smooth surfaces of in-si
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In suspending the work at the end o
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11.1 Transportation. Chapter - 11 L
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At the end of each day, the end of
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Where joints are left uncovered unt
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11.9 Flanged joints. Flanged joint
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A. Sluice valves 12.1 General. Chap
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12.6 Lubrication. All the points wh
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13.1 Fixing of Sluice Valves. Gener
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Preparation: The air valves and the
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14.1 Pressure gauges Material: Chap
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Chapter - 15 Electrical Works and P
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7. The bidder should enclose along
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15.9 Approval by fire insurance aut
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All spare contacts and terminal of
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Painting: The panels shall undergo
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Auto Transformer Starters : The aut
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Contactors: The three pole contacto
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While removing the cable from the d
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Testing of Cables: Once the cable i
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Point Wiring: Point wiring shall in
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Control at point of entry supply: T
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A conductor shall be carried in an
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5 Amps and 15 Amps socket outlet sh
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All outlets such as switches, wall
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Outdoor Luminaire: The luminaire sh
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All earth wires and earth continuit
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The capacitor bank may comprise of
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15.22 Pumping Machineries. Applicab
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Iron and steel are in general to be
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Workmanship: Workmanship and genera
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On removal from the galvanising bat
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They shall be efficiently lubricate
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Codes and standards: The design, ma
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The design of bearing should be suc
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Base plate: The common base plate f
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The commissioning tests shall be pe
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Motor Winding: Motor winding shall
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Chapter - 16 Technical specificatio
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vii) This region has experienced a
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16.7 The reduced level at different
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Chapter 17 Technical specification
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Chapter 18 Technical Specification
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(b) Pits for joints : When welding
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All excavated materials shall be th
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Supply of paints with approved qual
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shall be lowered into the trench by
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2. Protective devices, such as reli
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Education of crew members as to the
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The anchors provided at the mid-poi
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including laying of the Rising Main
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The pumps shall be of non pull out
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5. a) Centre to centre spacing (bet
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The pump TBH shall be calculated by
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Bidder for solo and parallel operat
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i) Seal ring/ earing ring : Materia
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4. Detail Particulars : The technic
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The Bidder shall furnish with the o
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19.14 Starters : In selection of st
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Pressure gauge (IS 3624): The deliv
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Bidder shall be provided with one p
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19.23 Valves & Specials for Pump in
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19.30 Equipment transfer trolley. O
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Each installation shall include the
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Fixtures shall be fully wired up to
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Exhaust Fan: For ensuring open vent
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Miscellaneous electrical safety dev
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For long run, junction/pull boxes s
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Foundation & Civil Works : Equipmen
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e) Exhaust fan: For ensuring open v
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It is the responsibility of Bidder
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In the design selection of pumping
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Bearings : Has been detailed elsewh
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Chapter 21 Water Treatment Works. 2
Page 235 and 236: Sterilisation : For sterilisation o
Page 237 and 238: ii) Agitator drive comprising elect
Page 239 and 240: xx) Air blower of 500 cfm capacity
Page 241 and 242: The contractor shall assume full re
Page 243 and 244: Filters House and associated plant
Page 245 and 246: Control room & laboratory : The var
Page 247 and 248: Sl. No. Parameter 28. Selenium (mg/
Page 249 and 250: The chlorinators shall be arranged
Page 251 and 252: 21.12 Filtration Works. The works t
Page 253 and 254: 21.16 Filter media and charging. Th
Page 255 and 256: Slow Start : Following cleansing op
Page 257 and 258: The gears between the driver and dr
Page 259 and 260: Chapter 22 Technical specification
Page 261 and 262: Special foundations in poor soil :
Page 263 and 264: Protection of property : Trees, shr
Page 265 and 266: 22.6 Pipe laying. Laying of pipes u
Page 267 and 268: i) By Hacksaw : Hand or power opera
Page 269 and 270: ii) Transportation : Pipes should b
Page 271 and 272: iv) It is prudent to begin testing
Page 273 and 274: Chapter 23 Technical specification
Page 275 and 276: The contractor shall assume full re
Page 277 and 278: Though the wall thickness of the pi
Page 279 and 280: Butterfly valve for individual pump
Page 281 and 282: Chapter 24 Technical Specification
Page 283 and 284: Chapter 25 Technical specifications
Page 285: Erection/laying/hoisting, fitting a
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PACKAGE : I Bid Document VOLUME : II - Public Health Engineering

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