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

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Cabling : Buried cables shall be In outdoor areas, main runs from lighting panels shall be by means of AYWY cables, directly buried in ground or laid in trenches for the underground portion and through conduit for the over ground portion laid and covered with sand/riddled earth, and protected from damage by bricks at sides and precast concrete stab at top. Buried cables shall have cable markers at 50M interval and projecting 150 mm above ground. At cable bends and joints markers shall be provided. When buried cables cross road/railway track, additional protection to be provided in form of Hume/G.I. pipe. Grounding: All lighting panels, junction boxes, receptacles, fixtures, conduit etc. shall be grounded in compliance with the provision of I.E. Rules. Ground connections shall be made from nearest available station ground grid. All connections to ground grid shall be done by arc welding. Panels/Boards shall be directly connected to ground grid by two nos.35 x 6 mm G.I. flats (for panels)/Two nos. 50x6 mm G.I. flats (for distribution boards). All junction boxes, receptacles, lighting fixtures etc. shall be grounded with 16 SWG G.I. wire. Each street lighting Pole shall be grounded at two points by two nos. 50x6 mm G.I flat risers from two (2) nos. earthing spike 40 mm dia. & 3m long directly driven into ground at a depth of 1m from ground level. The junction box at each lighting pole is grounded at two (2) points from two(2) nos earthing terminals by 16 SWG GI wire. One 16 SWG G.I wire shall be taken up to the junction box from lighting fixtures and connected to grounding point. A continuous ground conductor of 16 SWG G.I. wire shall be run all along each conduit run and bonded to it every 600 mm by not less than two turns of the same size of wire. This conductor shall be connected to each panel ground bus. All junction boxes, receptacles, fixtures etc. shall be connected to this 16 SWG ground conductor. DTS : Detailed Tender Specification. Page 218
Foundation & Civil Works : Equipment foundations panel foundations and all other civil work will be provided by the Contractor. Excavation and Back Filling : The Contractor shall perform all excavation and backfilling as required for buried cable and ground connections. Excavation shall be performed up to the required depth. The Contractor shall make use of his own arrangements for pumping out any water that may be accumulated in the excavation. All excavation shall be backfilled to the original level with good consolidation. Steel Fabrication : All supports, hangers & brackets shall be fabricated by the Contractor. Necessary steel shall be supplied by the Contractor. Steel for fabrication shall be straightened and cleaned of rust and grease. Painting at site. Street light poles shall be given two coats of aluminium paints after installation. All steel fabrication shall be given two coats of red oxide primer followed by two coats of battleship grey shade. All equipment shall be given touch-up paint as required after installation. Testing of installation : The Contractor will provide such checking and testing equipment as test lamp, buzzer, 500 volt meggar, earth megar, lux-meter etc. free of cost for maintenance purpose. DTS : Detailed Tender Specification. Page 219
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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
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 and 182: The anchors provided at the mid-poi
Page 183 and 184: Chapter 19 Technical specification
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: For long run, junction/pull boxes s
Page 223 and 224: e) Exhaust fan: For ensuring open v
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
Page 233 and 234: 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 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
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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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