CA NO. GE(I)(AF)/SHL/ OF 2022-23 PROVN OF 100KVA TRANSFORMER AND 100KVA DG SET FOR NFS (PHASE-II) AT 792 SU AND PROVN OF 100KVA TRANSFORMER FOR SNCOS MESS AT HQ EAC (U), AF UNDER GE (I) (AF) SHILLONG

Amount

Excavation in trenches in soft / loose soil, not exc 1.5 m wide and n. exc 1.5 m depth or n exc 10 Sqm on plan & getting out, for laying of cables, foundations of poles, struts, stays etc. and getting out including triming and forming bottom surface complete, all as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cms thick in soft / loose soil back in trenches after cables have been laid and tested, poles, stays , struts have been erected and tested complete all as directed.

Removing excavated materials to a distance not exc 50m and depositing where directed at a level not exc 1.5 m above the starting point in soils complete all as directed.

Supplying, Fixing/laying, jointing and testing and commissioning, LT under ground cables, 1100 Volts grade, XLPE insulated, armoured heavy duty electric cable with stranded aluminuim conductors, laid in trenches, ducts/fixed on poles/walls/laid under roads/paths/drains/culverts or encased in GI pipe complete all as specified and directed of following sizes:-

3.5 core 50 Sqmm

3.5 core 120 Sqmm NOTE :- (a) Excavation & earth work, shall be measured and paid for seprately under respective items of the BOQ. (b) GI pipe for laying of cable, sand cushioning, cable protection cover shall be measured and paid for seprately under respective items of the BOQ (c) Road cutting involved during excavation for laying of cables etc shall be made good as per existing road. Nothing extra shall be admissible on this account. Quoted rates of the item shall be inclusive of the above provisions.

Supplying, laying, jointing, testing and commissioning 120 Sqmm, 3 core, XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable (heavy duty) with aluminum conductors, 11 KV grade of , IS 7098 marked, suitable for HT 11 KV(E) system, laid in trenches / ducts / encased in GI pipe / fixed to pole complete all as specified and directed. (Note :- Excavation & earth work, GI pipe for laying of cable, sand cushioning, cable protection cover shall be measured and paid for seprately under respective items of the schedule.)

M & L for outdoor type heat shrinkable cable end termination jointing kit for HT 11000 Volts(Earthed) grade cable of following size complete with jointing material and accessories complete all as directed :-

120 to 185 Sqmm, 3 core

M & L for indoor type heat shrinkable cable end termination jointing kit for HT 11000 Volts(Earthed) grade cable of following size complete with jointing material and accessories complete all as directed :-

120 to 185 Sqmm, 3 core

M & L for heat shrinkable outdoor type straight through jointing kit for 11 KV (Earthed) grade cable of following size complete with jointing material and accessories complete all as directed :-

50 to 95 Sqmm, 3 core

S & F Galvanised steel tubing Medium grade for protection of under ground cable on poles / walls/under road crossing/laid in trenches etc conforming to IS-1239 for following bore complete all as directed:-

100 mm bore (Note : Excavation & earth work shall be measured & paid separately under respective items of this Schedule).

M & L for dry sand cushioning to PVC under ground cable with screened and washed sand and punning to provide a required cover complete all as specified and directed. Note :- Thickness after punning shall be considered for payment.

M & L for brick protection for UG XLPE cable with sub class 'B' bricks, old size laid dry and flat abutting each other with gaps between adjacent brick 10mm with width equal to length of brick in trenches across the cable complete all as directed.

(d) CTs rating 100/5A, Class-I for all three phases - 01 Set of Three (e) 22.5mm dia 230 Volts cluster type phase indication lamps for 'R' , 'Y' , 'B'- 01 Set of Three (f) Separate control fuse (g) Gen Set Batteries 12 Volt 90 AH sealed maintenance free with leads & connecting accessories - 2 Nos (h) Digital power factor meter (j) Fuel tank for atleast 12 hrs supply (capacity), with supply line to engine. (k) Electric starting with DC self starter, cut out with wiring, requisite batteries and its leads, battery charging alternator etc. (l) Fuel filters & lub oil filter. (m) Air cleaner (n) Exhaust silence-cum-manifold with adequate dia and length of smoke flu pipe to exhaust the emitted smoke out side the Generator room. (o) Engine stop lever (Hand operated) (p) Lub oil cooler. (q) Fuel lift pump (r) Belt guard and automatic belt tension unit. (s) Engine driven booster pump to deliver fuel from supply line to the fuel injector through two Nos fuel filter (t) Safety control trip for low lubrication oil Temp (u) Safety control trip for high lubrication oil Temp (v) Safety control trip for Engine over speed (w) Base frame of sturdy design - 1 set (B) Cold Wheather Kit : Cold weather functioning Kit with suitable battery warmer comprising of automatically controlled thermostate. (C) AMF Panel : The panel shall be equipped as under:- (a) MCCB four pole 200 Amp confirming to IEC 60947-2 & IS – 13947-3 thermal magnetic release and adjustable over load setting 0.8 – 1.0 x In and adjustable short circuit setting 6 – 10 x In and rupturing capacity 35 KA at 415 V AC , 50 Hz complete - 02 Nos. (b) On-load change over switch for 200 Amps rated current, four pole, 415 volts, 50 Hz in sheet steel enclosure confirming to IS-13947-3

(e) 100mm thick PCC 1:4:8 type D-2 (using 40mm graded stone aggregate ) as in foundation below PCC platform. (f) PCC (1:2:4) type B-1 (using 20mm graded stone aggregate ) as in platform above PCC foundation 2.5 times the operating weight of the Gen Set with enclosure or as recommended by the Gen Set manufacturer OEM/OEA, whichever is higher shall be provided and shall be deemed to be included in rate quoted for this item. Minimum platform for Gen Set. shall be 450mm above the ground level. Length and breadth of foundation shall be at least 600mm more on all sides than the size of enclosures. (g) The consolidated rate for Srl No. 12.00, 12.10, 12.20 & 12.30 shall be quoted against Srl No. 12.00 of BOQ.

Supply, installing, testing and commissioning outdoor type step down transformer, 11000/433 Volts (at no load) AC, 3 phase, 50 Hz capacity 100 KVA, core type, copper wound, oil immersed, naturally cooled, Oil natural, air natural (ONAN), with external cooling tubes, delta connected on primary side (HV) and star connected on secondary side (LV) in accordance with vector symbol. DYN-11 (Vector Group) with neutral brought out on secondary side (LV side) and having tapping at + 2.5% to + 7.5% HV side to be changed by means of hand operated off load tap changer gear. The maximum temperature rise should not exceed 45 degree Celsius in oil and 55 degree Celsius in HV/LV winding when measured by resistance method after continuous full load run on an ambient temp of 40 degree Celsius. The transformer shall be IS : 1180 Level 2 marked and shall comprise of the following :- (a) On HT side (Primary side) consisting of three Nos porcelain bushing with brass spindle with brass nuts and washers to hold the HT cable lugs complete. (b) On LT side (Secondary side) consisting of four Nos porcelain bushing with brass spindle with brass nuts and washers to hold the LT cable lugs complete. (c) Oil conservator with filter type drain valve and oil level guage. (d) De-hydrating breather with first fill dehydrating agent (silica gel).

Serial item No 21.00 Contd.... (e) Explosive vent. (f) Thermometer pocket on tank cover. (g) One No 100 mm dia, dial type thermometer, vapour pressure type having range 0-120 degree Celsius with metal guard having maximum perimeter reading temparature indicator with resisting device for transformer. (h) Two Nos earthing terminals on tank cover to facilitate fixing of 32X6 mm galvanized iron earth strip for earthing transformer body. (j) Rating plate and terminal marking plate. (k) Oil level guage. (l) Oil drain cum filtration valve. (m) Lifting lugs (n) Oil filling hole with cap/plug with connecting plate complete. (o) Air release valve plug. (p) Four plain solid cast steel detachable rollers. (q) Extra bushing for neutral, outside the LT Cable box for providing independent earthing for neutral. (r) First filling of new and unused transformer oil IS-335/93 (fourth revision) marked filtered and tested upto 40 KV dielectric strength at 2.5 mm air gap between testing electrodes. (s) One danger notice board having conventional danger sign of skull with bones in painted in red colour. NOTE :- (i) Certification of electric strength shall be submitted by the contractor, after filling the oil. (ii) Connected allied items shall be measured and paid separately under respective items of this BOQ. (iii) The consolidated rate for Srl No. 13.00 & 13.10 shall be quoted against Srl No. 13.00 of BOQ.

Supply, installation, testing and commissioning of 11 KV, 630 Amps, Extensible Outdoor Fixed Type (IP55), RMU (Ring main unit) 3-way comprising of 1 No 630 Amps, Motorised Load Break Switches (Comprising one No. Incomers) & 2 Nos. Vacuum Circuit Breaker as Outgoing, inside welded stainless steel (Non Ferrite Non Megnetic Grade) tank having min. thickness 3+0.5 mm having IP 67 Degree of Protection. RMU should be provided with Copper busbars internal, external as well as earthing busbars should be of copper, Resin cast ring core protection CT on cables 150-75/1 Amp, 5P10, 2.5 VA - 3 No's. & Resin cast ring core metering CT 150-75/1 Amp, Cl 1.0, 2.5 VA - 3 No's. on cables, one number fault passage indicator per unit, padlock provisions & complete with all accessories. The RMU shall be type tested for Internal arc test of 20kA/1 sec as per IEC62271-200. The unit shall include the following with all necessary standard fitting as required at site:- (i) 01 No. 630 Amp motorised Load Break Switches triple pole, single break 3 position as incomer (On, Off and earth having STC capacity 20 KA for 3 seconds with copper bus bar and copper earth bar fitted with fixed type voltage indicator device as per IEC 61958-1, fully rated with earth switch, spring assisted mechanism, Red/Green Push Button for On/Off Operation, Arc proof hinged type cable cover interlocked with Earth Switch, Air insulated cable boxes and boots suitable for bottom entry front termination of 3 core cable 120/185/240 Sqmm. (ii) 2 Nos. 630 Amp Motorised Vacuum Circuit Breaker, triple pole, single break 3 position (On, Off and earth having STC capacity 20 KA for 3 seconds with copper bus bar and copper earth bar fitted with fixed type voltage indicator device as per IEC 61958-1, fully rated with earth switch, spring assisted mechanism, Red/Green Push Button for On/Off Operation, Arc proof hinged type cable cover interlocked with Earth Switch, Air insulated cable boxes and boots suitable for bottom entry front termination of 3 core cable 120/185/240 Sqmm.

Serial item No 14.00 Contd.... (iii) 3O/C + 1E/F self powered relay with Low and High set for Over current and Earth Fault. Relay should have LCD ( 16 x 2). Relay should have facility to trip the breaker from remote commands without shunt trip coil, Last 5 Fault Record with Time stamp, battery pack replaceable from front. (iv) Transformer VCB should be provided with protection scheme for transformer faults like OTI, WTI & Buchholz's relay alaram & trip, along with annunciation and lock-out function (v) Bus Connected PT Unit -1 No. for Metering consisting of following:- Type M: Air Insulated metering module 12KV, 630A, 20KA for 3sec. - 3 Voltage Transformers of the ratio 11kV/√3 / 110 V/√3, 25 VA, Class 1.0 with HT fuses on primary side and MCB on secondary side. - 1 Digital MFM to measure Amps, Volts, Frequency, PF, KWH, KVAR. - 1 CFL Illumination. - 1 Space Heater with thermostat. - 1 RYB phase indications. - 1 set Bushings for external busbar connection along with Busbar cover & Sleeved busbars for coupling. - 2X12 V Battery with battery charger with suitable burden for motor operation. Input 230 V AC & Output 24 V DC. Battery

Serial item No 14.00 Contd.... (vi) Programmable Logic Controller for Auto changeover scheme between two incomers shall comprise of following features :- (a) PLC Scheme (Incorporating Basic Auto & Manual feature for by-passing changeover scheme) for Auto Changeover - 1 Set (b) Two Sets of Remote Control Kits for Motorised Isolator Operation (c) One No. PLC Having Communication Ports for future integration with SCADA on MODBUS. (d) One Factory Programmable Logic - Of - Operation permanentaly stored in PLC as per manufacturers instructions for autochangeover of feeders all as directed by GE, MES and programmable at site (e) Two Sets of Signal Convertors for PLC Operation. (f) Safety Interlocks Shall be provided as per relevant IEC/IS Standards and Manufacturers directions. (g) The Autochangeover of feeders shall be in minimum time not exceeding 10 to 15 seconds. (h) LED based Capacitive voltage indication fixed type VPIS 9-15 kV (i) Necessay interclocking arrangement for safety and operations (j) LBS shall be of ratings 12 KV, 630 A, 20 KA for 3 Sec. (k) One No. Operationg Handle for Manual Operation. (l) One No. Manometer. (m) Safety Interlocks Shall be provided as per relevant IEC/IS Standards and Manufacturers directions. (n) Make of Vaccum Interrupter and RMU should be same. (o) Above switchgear shall confirm to all relevant IEC/IS Standards. (p) Manual operation of Load Break switch should be possible without dismantling the motor from RMU. The motor should be fitted in such a way that it should not be outside front covers of RMU.

Serial item No 14.00 Contd.... (q) Coupling of RMU and Metering module should be with the help of Bolted type arrangement, so that the coupling at site shall be easy. Plug-in type bushing shall not be acceptable. (r) The Cable termination of RMU should be front accessible only. And minimum 3 module should accommodate in one tank to avoid multiple coupling at site. (s) PCC 1:2:4. type B1 using 20 mm graded aggregate for foundation of RMU as per recommendations of manufacturers of directed by EIC. (t) Note :- Any other parts/items not specified above but have been considered essential for smooth and safe functioning of the RMU system shall be included in the items and are covered against the quoted rate. Note :- (i) All incoming/out going feeders shall be connected by cable through suitable size gland plate/glands (ii) Foundation as per manufacturer recommendation shall be included in the quoted rate. (iii) The consolidated rate for Srl No. 14.00, 14.10, 14.20 & 14.30 shall be quoted against Srl No. 14.00 of BOQ.

Supply, installation, testing & commissioning CPRI approved outdoor cubical type LT feedr pillar box suitable for 415V, 3 phase , 4 wire 50 Hz, AC supply system fabricated outer shell from MS sheet 3mm thick and MS angle of size 50x50x6 mm frame front and back openable single door system lockable /openable by keys from both sides having lock system totally enclsoed dust, weather & vermin proof having and inner shell 2mm thick made of MS sheet compartmentlised for each control gear front openable single door system lockable/openable by keys having louvers and air vent gaskets for natural flow of Air. 'U' type gasket shall be used to make the inner shell completely vermin proof and to accomodate incommer/outgoing MCCBs and TPN copper busbars of rating 1.5 times that of controlling MCCB. TPN busbar and extension link shall be insulated with color coded heat shrinkable sleeve and shall be mounted on suitable size SMC insulator at suitable inteval throghout the length of TPN busbar. supported on SMC insulator, bottom base channel of MS section not less than 100mm x50mm x5mm thick, entire panel shall have a common aluminium earth bar of size 25mm x 5mm at the rear with 2 Nos earth stud, solid connections from main bus bar to switchgears with required size of copper bus bars. All control wiring with minimum 1.5 sqmm PVC insulated multistranded copper conductor cable, cable alleys, cable gland, plates in two half and general construction confirming to IS:8623/93. Computer cut self adhesive vinyl danger notice plate having conventional symbol of bone & skull be provided on the busbar chamber and front of outer shell and The degree of protection of outer shell shall be IP-54 and mounted on suitable PCC foundation. A detechable pre drilled gland plate of thickness 3mm should be used at bottom shell. Provision of threaded earthing stud at bottom & lifting lugs of suitable size at top to lift the feeder pillat box safely shall be made. Indicating lamps LED type, 230volts, AC at the incomer of the unit to show three phase availability at the outgoing of incomer including tamper proof digital meter to measure voltage, current with CT & PT (Make- Secure/L&T/HPL/Schneider). An inspection lamp with 5 watt LED bulb shall be fitted on top side of inner shell. The degree of protection for inner shell shall be IP-42 & including carry the following controls:-

Serial item No 15.00 Contd.... INCOMING & OUTGOING (a) MCCB 250Amp, 4 Pole, Ics 36KA, 415volts, 50Hz - 01 No (b) MCCB 125Amp 3 Pole, Ics 25KA 50 Hz - 02 Nos (c) MCCB 63 Amp 3 Pole, Ics 25KA 50 Hz - 04 Nos (d) Spare compartment to accomodate MCCBs of rating 40Amps-02 Nos. (e) On Load change over - 200Amps 01 No

Serial item No 15.00 Contd.... Notes (a) All armoured cables shall enter through bottom of the feeder pillar duly glanded and socketed and connected to MCCB/cable terminal. Cost of glanding socketing etc are deemed to be included in the unit rate of feeder pillar. (b) All the out going cable shall be terminated in bakellite cable connector and shall be duly glanded and socketed. (c) All the cables (power and control wiring ) should be terminated duly socketed with heavy duty tinned copper lugs, GI bolts/screws nuts, flat washers and spring washers as required. (d) White acrylic marker plate (for feeder / switch marking ) to be provided with black lettering by heat press machine as indicated in drawing and to be pasted over the panel door/near the cable connector with high quality adhesive. (e) The cost of platform/foundation with PCC shall deemed to be included in the quoted rates. (f) The consolidated rate for Srl Nos. 15.00, 15.10 & 15.20 shall be quoted against Srl No. 15.00 of BOQ.

Supply, installation, testing & commissioning CPRI approved outdoor cubical type LT feedr pillar box suitable for 415V, 3 phase , 4 wire 50 Hz, AC supply system fabricated outer shell from MS sheet 3mm thick and MS angle of size 50x50x6 mm frame front and back openable single door system lockable /openable by keys from both sides having lock system totally enclsoed dust, weather & vermin proof having and inner shell 2mm thick made of MS sheet compartmentlised for each control gear front openable single door system lockable/openable by keys having louvers and air vent gaskets for natural flow of Air. 'U' type gasket shall be used to make the inner shell completely vermin proof and to accomodate incommer/outgoing MCCBs and TPN copper busbars of rating 1.5 times that of controlling MCCB. TPN busbar and extension link shall be insulated with color coded heat shrinkable sleeve and shall be mounted on suitable size SMC insulator at suitable inteval throghout the length of TPN busbar. supported on SMC insulator, bottom base channel of MS section not less than 100mm x50mm x5mm thick, entire panel shall have a common aluminium earth bar of size 25mm x 5mm at the rear with 2 Nos earth stud, solid connections from main bus bar to switchgears with required size of copper bus bars. All control wiring with minimum 1.5 sqmm PVC insulated multistranded copper conductor cable, cable alleys, cable gland, plates in two half and general construction confirming to IS:8623/93. Computer cut self adhesive vinyl danger notice plate having conventional symbol of bone & skull be provided on the busbar chamber and front of outer shell and The degree of protection of outer shell shall be IP-54 and mounted on suitable PCC foundation. A detechable pre drilled gland plate of thickness 3mm should be used at bottom shell. Provision of threaded earthing stud at bottom & lifting lugs of suitable size at top to lift the feeder pillat box safely shall be made. Indicating lamps LED type, 230volts, AC at the incomer of the unit to show three phase availability at the outgoing of incomer including tamper proof digital meter to measure voltage, current with CT & PT (Make- Secure/L&T/HPL/Schneider). An inspection lamp with 5 watt LED bulb shall be fitted on top side of inner shell. The degree of protection for inner shell shall be IP-42 & including carry the following controls:-

Serial item No 16.00 Contd.... INCOMING & OUTGOING (a) MCCB 160Amp, 4 Pole, Ics 36KA, 415volts, 50Hz - 01 No (b) MCCB 63 Amp 4 Pole, Ics 25KA 50 Hz - 04 Nos Make:- (c) Spare compartment to accomodate MCCBs of rating 40Amps-02 Nos.

Serial item No 16.00 Contd.... Notes (a) All armoured cables shall enter through bottom of the feeder pillar duly glanded and socketed and connected to MCCB/cable terminal. Cost of glanding socketing etc are deemed to be included in the unit rate of feeder pillar. (b) All the out going cable shall be terminated in bakellite cable connector and shall be duly glanded and socketed. (c) All the cables (power and control wiring ) should be terminated duly socketed with heavy duty tinned copper lugs, GI bolts/screws nuts, flat washers and spring washers as required. (d) White acrylic marker plate (for feeder / switch marking ) to be provided with black lettering by heat press machine as indicated in drawing and to be pasted over the panel door/near the cable connector with high quality adhesive. (e) The cost of platform/foundation with PCC shall deemed to be included in the quoted rates. (f) The consolidated rate for Srl Nos. 16.00, 16.10 & 16.20 shall be quoted against Srl No. 16.00 of BOQ.

M & L for earthing complete with galvanized steel earth plate 60 cm X 60 cm X 6 mm thick buried vertically in ground to depth not less than 2.25 metres deep below ground level, with top edge of earth plate not less than 1.5 m below ground level, connected to galvanized iron strip 32x6mm earth lead by means of bolts, nuts, check nuts and washers of galvanized iron or steel besides welding at all joints as shown in drawing and including excavation and earth work, GI pipe light grade 40mm bore for protection of earth wire and connected to continous earth lead on pole/test point, supplying and laying charcoal dust common salt PCC 1:2:4 type B1, chamber and MS angle iron frame 40x40x3mm and RCC cover 40mm thick (1:2:4) type B1 using 20mm graded stone aggregate reinforced with 6mm dia round bars @ 75mm C/C both ways with MS handle 12mm dia, PGI/CI funnel and wire mesh, 20mm dia GI pipe medium grade for watering all as shown in electrical plate No 5 on srl page No 497 of SSR Part I (2009) drawing and connection to earth test point including testing and including dismantling and taking out old earthing complete all as specified and directed. Note : (i) The cost of earth lead /strip and GI pipe for protection of earth lead/strip upto 7.5m is included in the quoted rate. (ii) The cost of excavation, earth work is included in the quoted rate.

HAMZA CONSTRUCTION CO

MONA GENERATOR SEVICES PVT. LTD.

M/S DEEDAR ENTERPRISE