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

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18.16 Documents. The following documents shall be maintained by the contractor. Documents on approved deviations, if any. Documents (certificates) confirming the quality of electrodes and accessories used in welding. Details of tests conducted and their results. 18.17 Free issue items. The following materials shall be supplied to the contractor on free issue basis. Any other material required to complete the job as indicated in this specification other than these indicated below are in the scope of work of the contractor. a. MS pipes confirming to IS 3589, length of pipes shall be 8 to 12 M Size DN 500mm x 9.5 mm thick b. DN 500 mm Butterfly valves along with companion flanges, bolts and nuts PN 10 with gear arrangement. c. DN 150 mm Air release valves with companion flanges, bolts and nuts PN 10 rating d. DN 150 scour valves along with companion flanges, bolts and nuts PN 10 as per IS ( for drain purpose) e. DN 500 non-return valves along with companion flanges, bolts and nuts PN 25 as per IS ( for drain purpose) : 3200 Mtrs : 2 Nos. : 3 Nos. : 7 Nos. : 2 Nos. DTS : Detailed Tender Specification. Page 180
Chapter 19 Technical specification for electro-mechanical plants, equipments and accessories for Raw water Intake pumping station. 19.1 Intent and Requirement. Intent : The intent of the tender is to select, manufacture, testing at Manufacturers’ works, supply and delivery in duly packed condition F.O.R project site, installation, commissioning of vertical wet pit type pumping sets with accessories to be mounted on the Raw Water Intake Well and Gangway along with other equipments, field testing, operation and maintenance etc. as per the technical specification and other terms and conditions. The vertical wet pit type Raw Water pumping sets will serve as the intake pumps of the 8 MLD water treatment plant of GSWSP Phase III. Source and Pump House : The source of water shall be Umiew Dam reservoir of Greater Shillong Water Supply Scheme, Intake well cum Pump house is proposed to be constructed at the reservoir bed in the identified location at some distance from the bank. Vertical pump sets shall be installed in the intake well of R.C.C. construction within the water body of the reservoir, mounting the same on the floor of the Intake well cum Pump House connected through a gangway of 4m width to be constructed from the bank. Under the scope of this tender the electrical control switches H.T/L.T. Board, indication and metering, instrumentation etc. shall be housed in the Pump House to be constructed for the purpose. Present Phase and Future Phase Requirement : There shall be total 3 nos. vertical wet pit pumps of identical type for the present phase and the same shall be operated as two pumps in parallel conditions of any combination and shall deliver the station flow of 8 MLD in 20 Hrs. of operation by 2 pumps. Raw water shall be transported from the intake pumping station to the intermediate stage pumping station through a requisite size MS rising main pipe having approximate length of 750Rm. DTS : Detailed Tender Specification. Page 181
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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
Page 131 and 132: All outlets such as switches, wall
Page 133 and 134: Outdoor Luminaire: The luminaire sh
Page 135 and 136: All earth wires and earth continuit
Page 137 and 138: The capacitor bank may comprise of
Page 139 and 140: 15.22 Pumping Machineries. Applicab
Page 141 and 142: Iron and steel are in general to be
Page 143 and 144: Workmanship: Workmanship and genera
Page 145 and 146: On removal from the galvanising bat
Page 147 and 148: They shall be efficiently lubricate
Page 149 and 150: Codes and standards: The design, ma
Page 151 and 152: The design of bearing should be suc
Page 153 and 154: Base plate: The common base plate f
Page 155 and 156: The commissioning tests shall be pe
Page 157 and 158: Motor Winding: Motor winding shall
Page 159 and 160: Chapter - 16 Technical specificatio
Page 161 and 162: vii) This region has experienced a
Page 163 and 164: 16.7 The reduced level at different
Page 165 and 166: Chapter 17 Technical specification
Page 167 and 168: Chapter 18 Technical Specification
Page 169 and 170: (b) Pits for joints : When welding
Page 171 and 172: All excavated materials shall be th
Page 173 and 174: Supply of paints with approved qual
Page 175 and 176: shall be lowered into the trench by
Page 177 and 178: 2. Protective devices, such as reli
Page 179 and 180: Education of crew members as to the
Page 181: The anchors provided at the mid-poi
Page 185 and 186: including laying of the Rising Main
Page 187 and 188: The pumps shall be of non pull out
Page 189 and 190: 5. a) Centre to centre spacing (bet
Page 191 and 192: The pump TBH shall be calculated by
Page 193 and 194: Bidder for solo and parallel operat
Page 195 and 196: i) Seal ring/ earing ring : Materia
Page 197 and 198: 4. Detail Particulars : The technic
Page 199 and 200: The Bidder shall furnish with the o
Page 201 and 202: 19.14 Starters : In selection of st
Page 203 and 204: Pressure gauge (IS 3624): The deliv
Page 205 and 206: Bidder shall be provided with one p
Page 207 and 208: 19.23 Valves & Specials for Pump in
Page 209 and 210: 19.30 Equipment transfer trolley. O
Page 211 and 212: Each installation shall include the
Page 213 and 214: Fixtures shall be fully wired up to
Page 215 and 216: Exhaust Fan: For ensuring open vent
Page 217 and 218: Miscellaneous electrical safety dev
Page 219 and 220: For long run, junction/pull boxes s
Page 221 and 222: Foundation & Civil Works : Equipmen
Page 223 and 224: e) Exhaust fan: For ensuring open v
Page 225 and 226: Chapter 20 Technical specification
Page 227 and 228: It is the responsibility of Bidder
Page 229 and 230: In the design selection of pumping
Page 231 and 232: Bearings : Has been detailed elsewh
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Chapter 21 Water Treatment Works. 2
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Sterilisation : For sterilisation o
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ii) Agitator drive comprising elect
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xx) Air blower of 500 cfm capacity
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The contractor shall assume full re
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Filters House and associated plant
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Control room & laboratory : The var
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Sl. No. Parameter 28. Selenium (mg/
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The chlorinators shall be arranged
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21.12 Filtration Works. The works t
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21.16 Filter media and charging. Th
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Slow Start : Following cleansing op
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The gears between the driver and dr
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Chapter 22 Technical specification
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Special foundations in poor soil :
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Protection of property : Trees, shr
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22.6 Pipe laying. Laying of pipes u
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i) By Hacksaw : Hand or power opera
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ii) Transportation : Pipes should b
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iv) It is prudent to begin testing
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Chapter 23 Technical specification
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The contractor shall assume full re
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Though the wall thickness of the pi
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Butterfly valve for individual pump
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Chapter 24 Technical Specification
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Chapter 25 Technical specifications
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Erection/laying/hoisting, fitting a
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A. Electro-Mechanical Chapter 26 Ve
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PACKAGE : I Bid Document VOLUME : II - Public Health Engineering

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