Military Engineer Services-MES has published Repair / Maintenance Of Dg Sets, Amf Panel, Connected Parts And Certain Misc Connected E/M Works In Lca Locations And Other E/M Installations At Afs Sulur. Submission Date for this Tender is 04-05-2023. Diesel Generators Tenders in sulur Tamil Nadu. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 27-Apr-2023 | AMENDMENT | Financial Bid | 04-05-2023 |
| Sl. No. | Item Description |
| 1 | SCHEDULE A BOQ |
| 2 | Dismantling/ taking down complete radiator assembly of 15 KVA to 50 KVA DG Set and transportation to authorised workshop for following repairs :- (a) Opening the radiator assembly with brazing/ welding for repair/ service. (b)Cleaning of all water tube with diluted solution of HCL and cleaning with water pressure and removing the sludge and dust from inside the tank by flushing out. (c)Determining the leak/ puncher in radiator tubes. (d)Repair of fins by soldering/ brazing. (e)Repair of bottom brass water tank by soldering/ brazing. (f) Repair of radiator hose assembly. (g)Fixing the complete radiator assembly to its original position and testing complete all as specified and directed by Engineer-in-Charge. |
| 3 | Description all as per item No 2 here in above but DG set of capacity 62.5 to 160 KVA |
| 4 | Description all as per item No 2 here in above but DG set of capacity 200 to 500 KVA |
| 5 | S&F in replacement self starter 24 Volts of DG Sets complete all as specified and directed by Engineer-in-Charge. |
| 6 | Supply and fix in replacement of radiatorfan belt suitable for any capacity DG set complete all as specified and directed. |
| 7 | Disconnecting the existing battery of capacity 12V 90 to 150 AH from the DG set, taking it to battery workshop, draining out the complete unserviceable electrolyte acid from the battery, filling up with new Electrolyte acid to the required level, charging the battery, testing the battery for correct specific gravity, bringing back to the location, connecting to DG set, start the engine for satisfactory function all as directed by Engineer-in-charge. |
| 8 | S&F Battery charging alternator assembly 12 Volts of DG Sets complete including taking down existing one complete all as specified and directed by Engineer-in-Charge. |
| 9 | S&F in replacement battery cable assembly (-ve & +ve) complete all as specified and directed by Engineer-in-Charge. Note :- Items like clamp, lugs, nut, bolts and copper cable of size 25 sqmm upto 1 mtr required for connection is deemed to be inclusive in unit rate quoted. |
| 10 | M&L Opening disconnecting LT Cable connections with care from Auto-Main Failure Panel and checking throughly with Fault Detector Instrument at Site and replacement of Minor Defective Parts as required at Site suitable for 50 KVA to 160 KVA DG Set including replacement of Internal Wiring with Copper Conductor Cable, Beading, etc. complete all as specified and as directed. |
| 11 | Supply and fix in replacement of oil drain hose set complete all as specified and as directed. |
| 12 | S&F Power contactor MCX31, 4 pole with 1 NO + INC contactsincluding taking down unserviceable one, complete all as specified and as directed. |
| 13 | Supply and fix in replacement of flush type LED Digital multi functional meter with all parameter suitable for DG set AMF panelcompleteof Model A class 1 all as specified and as directed. |
| 14 | S& F in replacement of 250A contactor 4 pole with 4NO auxillary contacts complete all as specified and as directed. |
| 15 | Taking down old unserviceable self motorof capacity 15 KVA to 45 KVAand carrying to authorised work shop for servicing includingreplacment of unserviceable spare parts Brush, holder, solonoid switch, armature bush, filed coil complete and refixing, Testing complete all as specified and directed by Engineer-in-Charge. |
| 16 | Description all as per Sl item No. 15 here in before but 50 to 160KVADG set |
| 17 | Supply and fix in replacement of DGcontroller unitsuitable for DG set 40KVA to 82.5 KVA of as per existing Make complete all as specified and directed |
| 18 | Supply and fix in replacement of radiator hose of any capacity complete all as specified and directed |
| 19 | M&L for lubrication oil SAE 15 W - 40grade API CI 4 plustype in sealed container for DG set Top up and change the oil in the sump after completely flushing the old oil from the tank/sump and cleaning of the same complete all as specified and directed |
| 20 | Supply and fix in replacement of add-on auxilury contactorblock 2No-2NC complete all as specified and directed |
| 21 | Supply and fix in replacement of RPM meter assembly complete set including rubber gasket, wire as per sample all as specified and as directed. |
| 22 | M&L Repairs to 12V battery charging alternator assembly by removing, dismantling, replacing the unserviceable burnt rotor and stator assembly completly including insulation sleeves and refixing to the engine and testing to the satisfaction of DC volts & Ampsby charging of battery complete all as specified and directed |
| 23 | M&L Removing old paint from surface of acoustic enclosure and outer canopy, alternater upto 100 KVA with sand paper and painting complete DG set & panel board including canopy with synthetic enamel paint (of colour as directed by Engineer-in-Charge) using spray gun with compressed air and writing Ser No/ MES No in block letters with white paint and size of letter n.exc 30 cm height complete all as specified and as directed. |
| 24 | Supply and fix in replacement of selectorswitch 16 A 2 pole 2 way complete all as specified and directed |
| 25 | Supply and fix in replacement of 12V/24V 11 pin PLA relay with base complete all as specified and directed |
| 26 | Supply and Fix in replacement of water temeprature guage of any capacity complete all as specified and as directed. |
| 27 | S&F power contactor MCX32, 4 pole with 1 No + INC contacts and coil voltage 240 V/415 volt including taking down unserviceable one, complete all as specified and as directed. |
| 28 | Taking down carefully DG set of any capacity from foundation after disconnecting nuts, bolts, earthing lead, LT connection cable etc and shifting within a distance of 2 Km for reinstallation after repair including making connections of cables complete all as specified and directed. |
| 29 | Note for Item No 28 :- Weight of DG set is between 1 to 2 ton, necessary T & P and lifting arrangement shall be contractor responsibility and the unit rate quoted shall be deemed to include the same.. |
| 30 | M&L for servicing/ cleaning of MS diesel tank of DG Set of 15-50 KVA capacity by draining out the diesel from tank, cleaning the tank with soap water/ suitable solution and painting the external surface with one coat of synthetic enamel paint of existing colour including replacement of drain valve, outlet pipe complete all as specified and as directed. |
| 31 | Removing and replacing the old unserviceable one with new AVR (Automatic Voltage Regulator) suitable for Kirloskar curve of capacity 15 to 45KVA having input voltage 2 phase + neutral sensing voltage 415 output voltage 95V DC, output current 4A DC voltage regulation +/- 1 % average volts, over excitation current tripping, fuse protection 4A, fast acting and frequency 50 Hz complete all as specified and directedby Engr-in-Charge. |
| 32 | Removing and replacing the old unserviceable one with newAVR (Automatic Voltage Regulator) suitable for Kirloskar curve of capacity 50 KVA to 75 KVAhaving input voltage 2 phase + neutral sensing voltage 415 output voltage 95V DC, output current 4A DC voltage regulation +/- 1 % average volts, over excitation current tripping, fuse protection 4A, fast acting and frequency 50 Hz complete all as specified and directed by Engr-in-Charge. |
| 33 | S&F in replacement carbon brush of DG Sets of any capacity (set of four) as per sample complete all as specified and directed by Engineer-in-Charge. |
| 34 | S&F in replacement stop solenoid valve assembly 12V/ 24V DC for micro pump (two coil) heavy duty electrical control to stop of DG Setscomplete all as specified and directed by Engineer-in-Charge. |
| 35 | Supply and fix in replacement of electronictimer relay of range12 sec to 120 sec operational in 240V AC supply complete all as specified and directed. |
| 36 | S&F power contactor MCX33, 4 pole with 1 No + INC contacts and coil voltage 240 V/415 volt including taking down unserviceable one, complete all as specified and as directed. |
| 37 | M&L MCCB, 4Pole, 100 Amps, 415 Volt, 25KA including connecting up using suitable size of lugs including taking down existing one complete all as specified and directed |
| 38 | Supply andfix in replacement of water pump assembly of water cooling system of DG set any capacity complete all as specified and directed. |
| 39 | S&F in replacement slip ring assembly of DG Sets of capacity upto 40 KVA (as per site requirement) suitable for DG Sets of any make, complete all as specified and directed by Engineer-in-Charge. |
| 40 | M&L for replacement of door hinges of Acoustic enclosureheavy duty metal type for Left/Right side complete all as specified and directed |
| 41 | Supply and fix in replacement of Relay for single phase preventor 6 wire suitable for all mode operation complete all as specified and directed |
| 42 | Supply and fix in replacement ofelectronic Oil pressure sensor complete with wiring, connectors, bottle thimble complete all as specified and directed |
| 43 | S&F in replacement ofAC power contactor MCX04four pole complete all as specified and directed. |
| 44 | Supply and fix in replacment of valve door packing of any capacity complete all as specified and directed. |
| 45 | Taking down 12/ 24 volts self starter assembly from DG set and transporting to its authorised workshop for repair/ servicing by replacement of defective spare parts such as carbon brush, carbon ring, bearing, bush, defective wiring, winding and soldering after repair including testing after repair/ service and re-installation in original position for satisfactory function all as specified and directed by Engineer-in-Charge. |
| 46 | M&L Opening disconnecting LT Cable connections with care from Auto-Main Failure Panel and checking throughly with Fault Detector Instrument at Site and replacement of Minor Defective Parts as required at Site suitable for 200 KVA to 400 KVA DG Set including replacement of Internal Wiring with Copper Conductor Cable, Beading, etc. complete all as specified and as directed. |
| 47 | S&F in replacement of Relay for control contactor AC control std. Coil Voltage - 24, 110, 240, 415V, 50Hz MX0 22E (2 NO + 2 NC) complete all as specified and directed. |
| 48 | Supply and fixing in replacement indicator lamp RYB complete all as specified and directed |
| 49 | Supply and fix in replacement of push button for Start/Stop switch allas per sample complete all as specified and as directed. |
| 50 | Supply and fix in replacement of fuelhose set nylon type of any capacity complete all as specified and directed. |
| 51 | Supply and fix in replacement of electronic water temp gauge sensor double pin in byepass complete with wiring, connectors, bottle thimble complete all as specified and directed. |
| 52 | Supply and fixing in replacement of brass terminal suitable for 12 Volts, 90/120/180 AHbattery complete all as specified & directed. |
| 53 | S&F in replacement ofcontactor400 A4 pole complete all as specified and directed. |
| 54 | S&F in replacement slip ring assembly of DG Sets of capacity 50 KVA to 82.5 KVA (as per site requirement) suitable forDG Sets of any make, complete all as specified and directed by Engineer-in-Charge. |
| 55 | M&L for distilled water in 5 ltr/ 2 ltr sealed cane to be filled in batteries all as directed by Engr-in-Charge |
| 56 | Taking down old UNSV self motorof cap. 200 KVA to 320 KVAand carrying to authorised work shop for servcing includingreplacment of UNSV spare parts Brush, holder, solonoid switch, armature bush, filed coil complete and refixing, Testing all as specified and directed. |
| 57 | S&F in replacement ofpower contactor MCX03four pole complete all as specified and directed |
| 58 | S & F in repair power contactorMCX22 four pole complete all as specified and directed |
| 59 | S & F MCCB, 4 Pole, 250 Amps, with thermal magnetic release, 415 Volt, 36 KA including connecting up using suitable size of lugs including taking down existing one all as directed by Engineer-in-Charge. |
| 60 | Disconnecting the electrical connection from AMF Panel, taking down DG set of cap 40 KVA for major overhauling of engine and transportationto authorised workshop forreplacement of piston assembly complete-4 sets, exhaust valve, cyilinder liner, inlet and out let valves, sealing cap, copper washers,thermostat elements, spin of filter for lubrication oil,valve tappet, gasket for cylinder head, bush for injector, gasket for exhuast manifold,joint for bearing housing, joint for delivery volute, turbo repair kit etc complete and bring back for installation by positioned on the platform duly connecting electrical and mechanical attachment with existing panel and othe equipments including testing complete all as specified and directed by the Engineer-in-Charge. |
| 61 | Note for Item No 60 :- (i) Any damages happened in DG set during lifting/ shifting/ installation work, the same will be rectified by the contractor without any extra cost to the Govt. |
| 62 | (ii) Necessary T & P and lifting and transporting arrangement shall be contractor responsibility and the unit rate quoted shall be deemed to include the same. |
| 63 | M&L Opening disconnecting LT Cable connections with care from Auto-Main Failure Panel and checking throughly with Fault Detector Instrument at Site and replacement of Minor Defective Parts as required at Site suitable for 15 KVA to 40 KVA DG Set including replacement of Internal Wiring with Copper Conductor Cable, Beading, etc. complete all as specified and as directed. |
| 64 | Supply and fixing in replacement pump nozzle for DG Set of capacity 82.5 KVA complete all as specified and directed |
| 65 | S&F in replacement maintenance free lead acid sealed battery (SMF) 12 volts 100 AH complete all as specified and as directed. |
| 66 | Removing and replacing the old unserviceable AVR (Automatic Voltage Regulator) suitable for Kirloskar curve of capacity 82.5 to 160KVA having input voltage 2 phase + neutral sensing voltage 415 output voltage 95V DC, output current 4A DC voltage regulation +/- 1 % average volts, over excitation current tripping, fuse protection 4A, fast acting and frequency 50 Hz complete all as directed by Engr-in-Charge. |
| 67 | Supply and fix in replacement of captive AMF micropocessor window for auto functioningwithout causing any damage to other components and testing complete all as specified and directed. |
| 68 | M&L servicing/ cleaning of MS diesel tank of DG Set of 62.5-160 KVA capacity by draining out the diesel from tank, cleaning the tank with soap water/ suitable solution and painting the external surface with one coat of synthetic enamel paint of existing colour including replacement of drain valve, outlet pipe complete all as specified and as directed. |
| 69 | M&L replacement of existing unserviceable door lock arrangement to DG set canopywith new door lock & key etc as per existing size & type complete all as specified & directed. |
| 70 | Dismantling/ taking down complete radiator assembly of 400 KVA DG Set and transportation to authorised workshop for following repairs :- (a) Opening the radiator assembly with brazing/ welding for repair/ service. (b)Cleaning of all water tube with diluted solution of HCL and cleaning with water pressure and removing the sludge and dust from inside the tank by flushing out. (c)Determining the leak/ puncher in radiator tubes. (d)Repair of fins by soldering/ brazing. (e)Repair of bottom brass water tank by soldering/ brazing. (f) Repair of radiator hose assembly. (g)Fixing the complete radiator assembly to its original position and testing complete all as specified and directed by Engineer-in-Charge. |
| 71 | Supply and fix in replacement of oil seal assembly of any capacity as per sample complete all as specified and directed. |
| 72 | Supply and fix in replacement of electronic water temp gauge sensor single pin for engine block complete with wiring, connectors, bottle thimble complete all as specified and directed. |
| 73 | S&F in replacement of control contactor including 2 No-2NC complete all as specified and directed. |
| 74 | Supply and fix in replacment of DGcontroller unitsuitable for DG set 200KVA to 320 KVA of as per existing complete all as specified and directed. |
| 75 | M&L for servicing/ cleaning of MS diesel tank of DG Set of 250-810 KVA capacity by draining out the diesel from tank, cleaning the tank with soap water/ suitable solution and painting the external surface with one coat of synthetic enamel paint of existing colour including replacement of drain valve, outlet pipe complete all as specified and as directed. |
| 76 | Supply and fixing in repairs electronic type diesel float switch assembly complete all as specified and directed. |
| 77 | Supply and fixing in repairs door beading gasket for DG of 15 KVA to 50 KVA capacity complete all as specified and directed. |
| 78 | S&F in repairs digital line voltage monitoring system complete all as specified and directed. |
| 79 | Supply and fixing in repairs 24V DC solenoid switch complete all as specified and directed. |
| 80 | S&F in repairs earth Fault relay complete all as specified and directed. |
| 81 | Supply and fix in replacement of turbo cooler rubber hose of any capacity complete all as specified and as directed. |
| 82 | S& F in replacement of 180A contactor 4 pole complete all as specified and directed. |
| 83 | Removing and replacing the old unserviceable one with newAVR (Automatic Voltage Regulator) suitable for Kirloskar curve of capacity 200 to 500KVA having input voltage 2 phase + neutral sensing voltage 415 output voltage 95V DC, output current 4A DC voltage regulation +/- 1 % average volts, over excitation current tripping, fuse protection 4A, fast acting and frequency 50 Hz complete all as directed by Engr-in-Charge. |
| 84 | Supply and providing coolant concentrate in sealed container for top up complete all as specified. |
| 85 | Taking down old unserviceable self motorof cap. 400 KVA to 810 KVAand carrying to authorised work shop for servicing includingreplacement of unserviceable spare parts Bush, holder, solonoid switch, armature bush, filed coil complete and refixing, Testing complete all as specified and directed. |
| 86 | Supply and fix in replacement of electronic Fuel Level sensor complete with wiring, connectors, bottle thimble complete all as specified and directed. |
| 87 | S&F in replacement slip ring assembly of DG Sets of capacity 100 KVA to 160 KVA (as per site requirement) suitable forDG Sets of any make, complete all as specified and directed by Engineer-in-Charge. |
| 88 | Supply and fix in replacement of Auto source transfer controller unitsuitable for DG set AMF panel of any capacity and as per existing Make complete all as specified and directed. |
| 89 | Supply and fix in replacement of radiator mounting pad set of any size complete all as specified and directed. |
| 90 | Dismantling/ taking down complete radiator assembly of 810 KVA DG Set and transportation to authorised workshop for following repairs :- (a) Opening the radiator assembly with brazing/ welding for repair/ service. (b)Cleaning of all water tube with diluted solution of HCL and cleaning with water pressure and removing the sludge and dust from inside the tank by flushing out. (c)Determining the leak/ puncher in radiator tubes. (d)Repair of fins by soldering/ brazing. (e)Repair of bottom brass water tank by soldering/ brazing. (f) Repair of radiator hose assembly. (g)Fixing the complete radiator assembly to its original position and testing complete all as specified and directed by Engineer-in-Charge. |
| 91 | S&F in repairs DG set control panel auto on / off switch suitable for 810 KVA capacity complete all as specified and directed. |
| 92 | Supply and fixing in repairs mechanical type diesel float switch assembly complete all as specified and directed. |
| 93 | S&F in repairs change over switch 200 amps capacity 4 pole 3 phase with enclosure complete all as specified and directed. |
| 94 | Supply and fixing in repairs door beading gasket for DG of 62.5 KVA to 160 KVA capacity complete all as specified and directed. |
| 95 | Removing old paint from surface of acoustic enclosure and outer canopy, alternater suitable for exe 100 KVA but, n.exc 500 KVA capacity with sand paper and painting complete DG set & panel board including canopy with synthetic enamel paint (of colour as directed by Engineer-in-Charge) using spray gun with compressed air and writing Ser No/ MES No in block letters with white paint and size of letter n.exc 30 cm height complete all as specified and as directed. |
| 96 | S&F in replacement ofcontactor63 A complete all as specified and directed. |
| 97 | M&L Excavation in trenches not exc 1.5m wide and not exc 1.5 mtr depth for laying cable, pipes etc and not exc 10 sqm on plan and getting out in hard/ dense soil complete all as specified and directed. |
| 98 | Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm in hard and dense soil complete all as specified and directed. |
| 99 | Removing of excavated material exc 1.5 KM but n exc 5 KM and depositing where directed at a level n exc 1.5m above the starting point complete all as specified and directed. |
| 100 | M&L Riddling Sand obtained from excavation for cable protection 8cm under the cable and 15cm above the cable in trench and get the thick layer of 18cm after ramming complete all as specified and directed. . |
| 101 | Note for item No 100 :- The rate is deemed to be included for in case sufficient sand not obtained from excavation, the required additional qty obtain from out side MD land as directed by the Engineer-in-Charge. |
| 102 | M&L Fly ash bricks in cable protection cover including taking down existing bricks of any size complete all as specified and directed. |
| 103 | S&F XLPEinsulated,screened, PVC Bedded, galvanised steel strip or wire armoured, electric power cable heavy duty with aluminium conductor 1100Volts grade cross sectional area 25 Sqmm 4 core laid in trenches /ducts/fixed to wall/pole/ inside panel/ drawn through pipe including cable glands and terminal sockets, taking down existing cable etc all as specified and directed. |
| 104 | S&F XLPEinsulated,screened, PVC Bedded, galvanised steel strip or wire armoured, electric power cable heavy duty with aluminium conductor 1100Volts grade cross sectional area 35 Sqmm 3.5 core laid in trenches /ducts/fixed to wall/pole/ inside panel/ drawn through pipe including cable glands and terminal sockets, taking down existing cable etc all as specified and directed. |
| 105 | S&F XLPEinsulated,screened, PVC Bedded, galvanised steel strip or wire armoured, electric power cable heavy duty with aluminium conductor 1100Volts grade cross sectional area 50 Sqmm 3.5 core laid in trenches /ducts/fixed to wall/pole/ inside panel/ drawn through pipe including cable glands and terminal sockets, taking down existing cable etc all as specified and directed. |
| 106 | S&F XLPEinsulated,screened, PVC Bedded, galvanised steel strip or wire armoured, electric power cable heavy duty with aluminium conductor 1100Volts grade cross sectional area 70 Sqmm 3.5 core laid in trenches /ducts/fixed to wall/pole/ inside panel/ drawn through pipe including cable glands and terminal sockets, taking down existing cable etc all as specified and directed. |
| 107 | S&F XLPEinsulated,screened, PVC Bedded, galvanised steel strip or wire armoured, electric power cable heavy duty with aluminium conductor 1100Volts grade cross sectional area 95 Sqmm 3.5 core laid in trenches /ducts/fixed to wall/pole/ inside panel/ drawn through pipe including cable glands and terminal sockets, taking down existing cable etc all as specified and directed. |
| 108 | Note for item No 103 to 107 :- Excavation and earth work shall be measured and paid seperately. |
| 109 | Cutting existing road/PCC/Drain for laying of DI/GI or any type of pipe including necessary earthwork, excavation exc 600mm depth but not exc 1mtr depth, wide 800mm including making good existing surface with 150 mm thick PCC 1:2:4 type B1 using 20mm graded stone aggregate complete all as specified and directed. |
| 110 | Note for item No 109 :-The tenderer shall take into consideration for following points while quoting his rate for this item andthe unite rate is deemed be included for :- |
| 111 | (i) Earth work excavation in any type of soil |
| 112 | (ii) Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc. 25 cm thick complete all as specified and as directed. |
| 113 | (iii) Removing excavated material to out side MD land |
| 114 | (iv)Laying of any type/any bore of pipe in trenches including taking down any description. Supply of pipe will be measured and paid separately |
| 115 | (v)150 mm thickPCC 1:2:4 type B1 using 20mm graded stone aggregate as inroad to make good existing disturbed surfaces. |
| 116 | Supply only 50 mm bore of pipe high density polyethylene pipes (HDPE) of pressure rating 6 kgf/Sq cm complete all as specified and directed. |
| 117 | Note for Item No 116 :- The unit rate is included for supply only.cutting existing road , excavation, Laying of any type/any bore of pipe in trenches including taking down any description and 150 mm thickPCC 1:2:4 type B1 as inroadwill be measured and paid separately. |
| 118 | S&F XLPEinsulated,screened, PVC Bedded, galvanised steel strip or wire armoured, electric power cable heavy duty with aluminium conductor 1100Volts grade cross sectional area 120 Sqmm 3.5 core laid in trenches /ducts/fixed to wall/pole/ inside panel/ drawn through pipe including cable glands and terminal sockets, taking down existing cable etc all as specified and directed. |
| 119 | Note for item No 118 :- Excavation and earth work shall be measured and paid seperately. |
| 120 | Supply only GI pipe 80 mm bore medium grade for cable protection completeall as specified and as directed by Engr-in-Charge. |
| 121 | Note for Item No 120 :- The unit rate is included for supply only.cutting existing road , excavation, Laying of any type/any bore of pipe in trenches including taking down any description and 150 mm thickPCC 1:2:4 type B1 as inroadwill be measured and paid separately. |
| 122 | S&F in repairs Cable jointing kit for 1.1 KV grade cable for outdoor stright through heat shrink type joint complete with jointing material and accessories suitable for 3.5 core XLPE armored aluminium conductor cable of size 95 sqmm to 150 sqmm complete all as specified and directed. |
| 123 | S&F XLPEinsulated,screened, PVC Bedded, galvanised steel strip or wire armoured, electric power cable heavy duty with aluminium conductor 1100Volts grade cross sectional area 150 Sqmm 3.5 core laid in trenches /ducts/fixed to wall/pole/ inside panel/ drawn through pipe including cable glands and terminal sockets, taking down existing cable etc all as specified and directed. |
| 124 | Note for item No 123 :- Excavation and earth work shall be measured and paid seperately. |
| 125 | Supply only 80 mm bore of pipe high density polyethylene pipes (HDPE) of pressure rating 6 kgf/ cm2 laid in trenches for cable protection passing under road/ floor or for fixing to poles complete all as specified and directed. |
| 126 | Note for Item No 125 :- The unit rate is included for supply only.cutting existing road , excavation, Laying of any type/any bore of pipe in trenches including taking down any description and 150 mm thickPCC 1:2:4 type B1 as inroadwill be measured and paid separately. |
| 127 | M&L Boring of hole under road/ hard standing by trenchless technology including S&F HDPE pipe "heavy duty" of size 100mm bore fixed in repairs complete all as specified and directed |
| 128 | S&F in repair Galvanised earth strip of size 25 x 6mm fixed on proper post insulator at the instrument end complete all as specified and directed. |
| 129 | M&L Checking of any breaking in the link of earth strip wire of Galvanised/Copper/Aluminium Strip any size and jointing them by Exothermic Welding or Brazing including taking down old unserviceable one, complete all as specified and as directed. |
| 130 | S&F Arrester clamp for lighting arrester of size 16mm made out brass including taking down old unserviceable one, complete all as specified and as directed. |
| 131 | Supply, installation, testing & commissioning of maintenance free chemicalearthing system comprising 17mm dia copper bondedrod 3 mtr long horizontally pre welded T-terminal rod with provision for connection size of 50 x 150mm long, 6mm thickness with equal space either side, with 12mm dia hole of 02 numbers each on either side of the terminal clamp with 250 microns (average) coating thickness, tested and certified by CPRI India alongwith 50 Kg earth energizer compound and 10 litres earth resistance reducingliquid. The earthing energizer compound and resistance reducing earthing liquid shall be tested as per IEC-62561-7 read with ASTM G57-06, CI 3.4 A by any NABL accredited lab. The above mentioned rod shall be installed in 4-6 inch bore, 12 feet depth with a distance of minimum 3 meters between each installationall as specified and directed. |
| 132 | The unit quoted rate shall deem to be included for the following :- (i)Prior toinstallation of maintenance free chemicalearthing, soil resistivity test to be carried out at the location where earthingwork to be donein presence of Engr-in- Charge/JE (E/M),user and the report has tosubmitto Garrison Engineer with recommendation of manufacturer, if required additional interconnection ofearthing (not more than 04 number of earthing) to achive earth result less than 1 Ohms. The arrangement done for soil resistivity testingandsubmission of report with recommendationdeemed to be included in the quoted rate. |
| 133 | (ii) The description/ size/ qty of items mentioned in above are for indicating only however qty/ size may vary at site condition to maintain the earth resistance 1 ohm. The contractor shall quote rate by considering all factors. |
| 134 | (iii) Rateofearth energizer compound of 25 Kg of 02 bags and earthresistance reducingliquid 10 litre per cane for each pit deemed to be included in the quoted rate. |
| 135 | (iv)Resistivity of earth energizer compound and resistance reducing earthing liquid shall be certified by any NABL accredited lab carried out as per IEC-62561-7 read with ASTMG57-06, CI-3.4A and the certificate of same shall be submitted by the contractor before commencement of work. |
| 136 | (v)Earthing shall be tested after completion of work by the contractor in presence of Engr-in-charge, user and proper record shall be maintened duly signed by all concerned.After testing if the desired earth resistance of less than 1 Ohm is not obtained, the earthing will be redone at no extra cost to Govt. till desired result is obtained. |
| 137 | (vi)Earth resistance tester will be provided by the contractor.Tester should be calibrated from authorised company/ lab. |
| 138 | (vii) The contractor shall give a written guarantee of minimum three years for maintaining the earth resistance less than 1 Ohm after certified date of completion. |
| 139 | (viii) No further maintenance or periodic watering or recharge shall be required in earthing during its guarantee period of over 03 years in all type of soil including soft/ disintegrated or hard rock. |
| 140 | (ix) During the guarantee period, if earth resistance is not maintained less than 1 ohm the contractor has to redo or rectify at no extra cost to Govt till desired result is mainained. |
| 141 | (x) A security deposit of value equal to 2.5 % of the rate quoted for chemical earthing per each earthing shall be retained from payment due to the contractor for the guarantee period. |
| 142 | (xi) Earth enhancing material should not leach into the adjacent soil or underground water channels and its PH valve should be in neutral range complete all as specified and as directed. It should solidify when mixed with water and set like concrete. |
| 143 | (xii) The electrode shallcarry manufacturer"s name . |
| 144 | (xiii) The connection clamp shall be permanentlly welded to the copper boundedrodto avoid any kind of connectivity loss,.The pre-welded copper bounded rod shall not need any additional clamp for termination. |
| 145 | (xiv) Copper strip of size 20 x 3 mm shouldbe fixed on proper post insulator at the instrument end (copper strip will be measured and paid separately). |
| 146 | (xv) The acceptable earth resistance at earth busbar/ test point shall not be more than 0.1 ohm. |
| 147 | (xvi)The contractor shall submit CPRI India certified document for copper bonded rod to ensure genuity of material. |
| 148 | (xvii) Sign boardof mild steel 2 mm thick duly painted with two coats of synthetic enamel paint over a coat of red oxideZinc chrome primer showing result of earthing should be fixed near the earth pit after completion as directed by engr -in- charge. |
| 149 | (xviii)Earth work such as auguring andmaking good the surrounding area shall carried out in any type of soil. |
| 150 | S&F in repairs Copper strip 20 x 3mm thick as earthing lead fixed to wall/roofs etc all as directed. |
| 151 | Note for Item No 150 :- All Joints should be joined by Exothermic Welding or Brazing. |
| 152 | M&L Earth pit cover madeof heavy duty poly plastic of high grade polypropylene tested and certified by any NABL accredited lab for load bearing capacity not less than 9.2 tonnes with top dia not less than 250mm, bottom dia not less than 330 mm and height not less than 260 mm dia for each electrode pit complete all as specified and directed. |
| 153 | Note for Item No 152 :- The contractor shall submit load bearing capacity certificate from the manufacturer. |
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