Providing HT supply arrangements to the Critical Care Block in the Government Head quarters Hospital at Cuddalore in Cuddalore District

Amount

Supply, installation, testing and commissioning of 22kV, 630A, 25kA 3 panel OUTDOOR TYPE VACCUM CIRCUIT BREAKER (1 Incoming +2 Outgoings ) 1) Vaccum Circuit Breaker: a) Horizontal Draw Out type VCB fitted with Manual / Motor Operated spring charged mechanism with 230V AC Motor with Motor control switch, Mechanical ON / OFF indicator Operation Counter, Automatic safety shutters & push button - 22kV,630A 25kA/3Sec Incomer-1no, Outgoing-2nos. b) Shunt trip coil - 110V DC c) Closing coil - 110V DC d) Spare auxillary contact - 6 NO + 6 NC e) Antipumping Feature - 110V DC f) Power Pack - 230V AC/110V DC - 1 no 2) Potential Transformer:- 3 set a) Single Phase, Resin cast, Dry type, Fixed type potential transformer with HT and LT HRC fuses and one no. Neutral Link - (22KV/√3) / (110V/√3) b) Secondary 1: for meter - Cl-0.5, 100VA burden

b) Buzzer - (Outgoing - 1) 6) Control wiring with appropriate colors 7) Busbar Ratings a) Copper busbar with PVC sleeve - 22kV,630A, 25kA/3Sec (Incomer - 1, Outgoing - 2) b) Earth bus - (Incomer - 1, Outgoing - 2) 8) Common for switch gear : a) Heater ON / OFF switch with filament type 100Watts space heater & thermostat , single phase switch with socket, 9W cubicle Lamp for panel illumination with snap type door limit switch, Fuses / MCBs for AC / DC conrol - Incomer - 1set, Outgoing - 2 set 9) Enclosure: MS Sheet steel enclosure & installation suitable for Outdoor - IP54 (Incomer - 1set, Outgoing - 2set) 10) Termination : a) Incoming (Excluding Cable termination kits, lugs & glands) b) Outgoing (Excluding Cable termination kits, lugs & glands) 11) Surge Protection Surge Arrester - 18kV,10 kA (Incomer - 3 nos) 12) Mechanical Interlock & Key a) Castell Interlock and key (2 Base + 1 Key) - (Incomer - 1set)

Supply, installation, testing and commissioning of 22kV, 630A, 25KA OUTDOOR TYPE Single VCB 1) Vaccum Circuit Breaker: (1 no) a) 22KV, 25kA Horizontal Draw Out type VCB fitted with Manual / Motor Operated spring charged mechanism with 230V AC Motor & Motor Control Switch, Mechanical ON / OFF indicator Operation Counter, Automatic safety shutters & push button. -1no (630A) b) Shunt trip coil - 110V DC c) Closing coil - 110V DC d) Spare auxillary contact - 6 NO + 6 NC e) Antipumping Feature - 110V DC f) Power pack - 230VAC/110V DC 2) Potential Transformer: (1 no) a) Single Phase, Resin cast, Dry type, Fixed type potential transformer with one set of HT and LT HRC fuses and one no. Neutral Link - (22KV/√3) / (110V/√3) - 3 nos b) Secondary 1: for meter - Cl-0.2, 50VA burden 3) Current Transformer: a) Single phase, Resin Cast, Dry Type Current Transformer 100-50/5-5Amps dual core Core 1: for meter - Cl-0.5, 7.5VA burden Core 2: Accuracy class 5P10,7.5VA Burden for protection

9) Common for switchgear : Heater ON / OFF switch with filament type 80Watts space heater & thermostat , single phase switch with socket, Lamp for panel illumination with snap type door limit switch, Fuses / MCBs for AC / DC control - 1 set 10) Enclosure : MS Sheet steel enclosure & installation suitable for Indoor - 1 set 11) Termination: a) Incoming (Excluding cable termination kits, lugs and glands) - Bottom b) Outgoing (Excluding cable termination kits, lugs and glands) - Bottom 12) Surge Protection: 18kV,10kA - 3 nos 13) Mechanical Interlock and Key: Castell interlock and key ( 2 Base + 1 Key) - 1 set

Supply, erection, testing and commissioning of 250 KVA, 22KV/433V, HV - Delta, LV Star off load tap changing, copper wound, outdoor type, distribution transformer as per IS 1180(Level 1) ON AN cooled, confirming to relevant IS 1180 / IEC 60076, Level-II Class A Insulation and mounted on 300 x 90 x 6mm base channel bolted to a suitable RCC plinth of height 5' and RCC foundation to a depth of 2' with reinforcement by suitable MS rods 150Kg / m3 capable of bearing 2 ton weight and connected works fitted with the following: 1) HT Cable End box suitable for connection of 3 x 185 sq.mm HT cables & LT Cable end box suitable for connection 2 runs x 3 1/2 x 185 Sqmm 2) Buchholz relay with shut off valve, alarm and trip contacts. 3) Dehydrating silica gel breather. 4) Conservator with oil filling pipe, cap and drain plug valve. 5) Tank drain cum bottom filter valve with plug. 6) 4 Nos. plain rollers uni and bi-directional under base channels with anti skid. 7) Dial type thermometer with pocket to measure oil temperature stem type. 8) Tank top filter valve with plug. 9) Explosion vent with diaphragm. 10) Oil level gauge with marking. 11) Two body earthing terminal and additional neutral bushings for solid earthing. 12 Rating and terminal marking diagram plate. 13) Lifting hooks/ Lifting eyes/ Jacking pad to facilitate easy movement of Transformer to ground level, cover lifting lugs.

14) Off load hand operated tap changing switch at standby height from ground level. 15) Tapping on primary winding for voltage variation +5% to -5% in steps of 2.5%. 16) Welded and detachable radiators. 17) Air release device. 18) The transformer should be supplied with first filling of oil as per IS 335 with high dielectric strength, BDV and flash point. 19) Monogram plate. 20) Shut off valve for surge relay 21) Oil surge relay 22) All removable covers shall be provided with weather proof hot oil resistant, resistance gaskets to prevent leakage of water into core, and oil from the tank with low no load loss 1100W and full load loss 6400W, impendence 5% with temperature rise oil / winding 50° - 55°C

Supply and clamping of 1RX3C x 185 sq.mm HT (E)XLPE 22 KV aluminium armoured cable (Polycab/Eq) in the Existing trench or on wall with MS Clamps

Supply and providing cable suitable 22KV 3 core 185 sqmm XLPE HT UG cable with necessary Outdoor type heat shrinkable Termination kit and accessories with termination complete

Supply and laying of 3 1/2 x 95 sq.mm PVC armoured LTUG cable in suitable size HDPE pipe in a trench to be excavated at a depth of 0.75 and refilling the earth to make good.

Supply and fixing of brass cable gland for 3-1/2 x 95 sq.mm. PVC armoured LTUG cable with earth connection.

Supply and providing cable end termination of 3-1/2 x 95 sq.mm. PVC LTUG aluminium armoured cable with necessary aluminium cable sockets by crimping etc with electrical connection complete.

Supply and laying of 3 1/2 x 150 sq.mm PVC armoured LTUG cable in suitable size HDPE pipe in a trench to be excavated at a depth of 0.75 and refilling the earth to make good.

Supply and fixing of brass cable gland for 3-1/2 x 150 sq.mm. PVC armoured LTUG cable with earth connection.

Supply and providing cable end termination of 3-1/2 x 150 sq.mm. PVC LTUG aluminium armoured cable with necessary aluminium cable sockets by crimping etc with electrical connection complete.

Supply and laying of 2R x 3 1/2 x 185 sq.mm PVC armoured LTUG cable in suitable size HDPE pipe in a trench to be excavated at a depth of 0.75 and refilling the earth to make good.

Supply and laying of 3 1/2 x 185 sq.mm PVC armoured LTUG cable in suitable size HDPE pipe in a trench to be excavated at a depth of 0.75 and refilling the earth to make good.

Supply and fixing of brass cable gland for 3-1/2 x 185 sq.mm. PVC armoured LTUG cable with earth connection.

Supply and providing cable end termination of 3-1/2 x 185 sq.mm. PVC LTUG aluminium armoured cable with necessary aluminium cable sockets by crimping etc with electrical connection complete.

Supply and laying of 3 1/2 x 240 sq.mm PVC armoured LTUG cable in suitable size HDPE pipe in a trench to be excavated at a depth of 0.75 and refilling the earth to make good.

Supply and fixing of brass cable gland for 3-1/2 x 240 sq.mm. PVC armoured LTUG cable with earth connection.

Supply and providing cable end termination of 3-1/2 x 240 sq.mm. PVC LTUG aluminium armoured cable with necessary aluminium cable sockets by crimping etc with electrical connection complete.

Supply and fixing of 250 A TPN switch disconnector fuse units in sheet steel enclosure with HRC fuses double break on suitable angle iron frame work with MS cable entry boxes with earth connection only.

Design, Supply, erection, testing and commissioning of 630 A draw out type floor mounted MV cubical bus bar champer dust and vermin proof and accomodating the following switch and 2 Nos ACB as Incomer units and 1No.800A ACB Bus coupler with the following items of work complete to satisfy the IE rules and CEIG guidelines.

Supply and fixing of 2 Nos 630A basic rating 4pole 433V Lt ACB confirming to IS 13947 - 2 IEC 60947 - 2 with making capacity of 50 KA and breaking capacity of 50 KA at 600V AC with all accessories for standard horizontal manual draw out type ACB equipped with auxiliary contacts and all accessories for closing and opening operation with micro processor SR 18 G relay over current trip device adjustable to LTD, STD and release for over current protection UV release with time delay, EF release short circuit protection, Mains CTs for 3 phases lockout, features,separate mould base for each pole for easy maintenance all relevant protection safety accessories as per CEIG, IE rules inforce with inter connection and terminations as required in specification. EB INCOMER: 630A FP draw out type ACB with Microprocessor based release. All settings to be restricted to 400A - 2 Nos EB BUSCOUPLER '800A FP draw out type ACB with Interlock-1 No for Bus coupler OUTGOING 400A TPN switch disconnector fuse units interior only with HRC fuse Double Break Switch - 2 nos 250A TPN switch disconnector fuse units interior only with HRC fuse Double Break Switch - 6 nos 125A TPN switch disconnector fuse units interior only with HRC fuse Double Break Switch - 4 nos (All the TPN Switch should be with Front Handle Make)

The bus bar chamber will consist of 2 runs 50mm x 10mm tinned copper flat for phase and neutral buses on epoxy moulded bus insulated at proper and sufficient spacing between the buses as per IE Rules. This bus bar chamber should be segregated from the adjacent chamber by providing hylem sheet of suitable thickness as partitions. 2 Nos of 25x3mm tinned copper flats should be provided all round the panel for earth bus. The fuse Switches should be connected with the phase and netural buses with suitable size of rigid copper flat/rod and each switch should be connected with the 2 Nos earth bus with 2 runs of 25X3mm rigid copper rod with suitable lugs for Phase and neutral with tinned properly. 'The capacity of the switches size of incoming and out going cable the place to which the supply is feed shall be mounted on switch chamber. The panel board should be mounted on 75mmx37mm MS channel provided all round at bottom of the panel. The whole arrangement should be erected on a masonry pedestal to be constructed with suitable foundation bolts and nuts such that the lowest switch handle is at a height of 0.45m from the ground level with necessary earth connection

Supply and erection of 75 KVAR 480/525Volts 50Hz 3 Ph automatic power factor correction panel, 8 stages, (at 0.95 lag), made up of powder coated, 14/16 SWG CRCA sheet steel enclosure with 1 1/2" x 1 1 1/2" x 1/2" AI Frame work with RCC concreting foundation and bolted to masonry pedestal with 120A TPN MCCB as incoming 7% ALUMINIUM PASSIVE HARMONICS FILTER (Reactor Series Connected) with Delta Connected capacitors MOO Type operating in multiple stage with 3 current and Voltage Transducers (CVT) at the phases simultaneously to activate the desired power factor switching time between steps 120 seconds, switching off time in case of fault 3 seconds with a LCD display to show the following Parameters. a. Vr – R phase Line Voltage b. Vy – Y phase Line Voltage c. Vb – B phase Line Voltage d. Ir – R phase Line current e. Iy – Y phase line current f. Ib – B phase Line Current g. KW – Present Kilo Watts h. RKVA – Present KVAR Demand i. KVA – Present KVA

j. PF – Present Power Factor k. Number of Capacitor bank ON/OFF l. Provision to indicate the imbalanced load m.Provision to indicate the change in phase Sequence n. The APFC Panel Should also have built in protection for current imbalance. For high Voltage/Low Voltage cut off, single phase Preventer, provision for inductor coil to cater the in-rush currents, line surges, Current Limiters, Current Sensor, etc., with connection complete and as per the relevant IE Rules. Eight Stages of Automatic Power Factor control panel with necessary connection. Make. CAPACITOR STEP SIZE: 1KVAR = 1 NO = 1KVAR 2KVAR = 2 NOS = 4KVAR 5KVAR = 1 NO = 5KVAR 10KVAR = 2 NOS = 20KVAR 20KVAR = 1 NO = 20KVAR 25KVAR = 1 NO = 25KVAR TOTAL: 75 KVAR, 8 STEPS.

Providing fencing arrangements alround the HT yard with vertical post of 65mm dia GI pipes at an interval of 2.50m c/c fixed into ground by packing with Plain cement concrete 1:2:4 over the Cement concrete 1:5:10 100mm thick, for a size of 0.45x0.45x1.00m and fixing chain link fencing of size 2"x2" for a height of 1.80m above finished floor level, providing kerbwall alround the HT yard using Brick work in Cement mortar 1:6 over the Cement concrete 1:5:10 100mm thick, filling the yard portion with HBGS metal 40mm size for 100mm thickness over a layer of CS Sand for a thickness of100mm including 2 nos. of gate with size of 1.50m x 1.80m with locking arrangements.The rate includes necessary earthwork excavation, plastering and painting etc., complete complying with standard specifications and as directed by the departmental officers

Preparation of site plan, physical layout, electrical line schematic diagram in 10 sets. Getting drawing approval from CEIG, preparation of completion report, rectification report and arranging CEIG’s inspection and obtaining safety certificate. Preparation of one set of approved drawing and a copy of HT safety certificate in a neat frame work to be fixed in the HT panel room – 1set.

Earthing as per the ISI specification with an earth electrode of 2.1mt class 'B' GI pipe of dia not less than 40mm, with copper earth plate of size 125mm x 50mm x 6mm, with necessary funneling arrangements with necessary masonry work and with 38mm RCC cover slab for the brick masonry

Supply and run of 25mm x 3mm tinned copper flat with necessary clamps / supports on wall / floor / ground for earth connection.

Supply and run of 25mm x 6mm tinned copper flat with necessary clamps / supports on wall / floor / ground for earth connection.

ADD GST 18%

KARTHIKEYAN ELECTRICALS (BID ID -1172177)