AUGMENTATION OF EXTERNAL ELECTRIC SUPPLY INCLUDING CONNECTING ITEMS UNDER GE (E/M) LUCKNOW CANTT

Amount

Excavation in trenches not exc. 1.5 m wide and not exc 1.5 mtr deep in soft/loose soil for laying / taking up/ taking down of cables and getting out and levelling of bottom surface to required level complete all as specified and directed by Engineer- in- Charge.

Returning filling in Including spreading, leveling, Watering and well ramming soil in layers not exceeding 25 cm thick complete all as specified and directed.

Removing excavated material (i.e soil) from site to a distance n. exc 50 mtrs away and depositing where directed at a level n. exc. 1.5 mtr above the starting point complete all as specified and directed by Engineer-in-Charge.

M&L for Sand cushioning to under ground cable in layers of 23 cm thick (8 cm before laying the cable and 15 cm thick after laying the cable, punned thickness shall be measured) in trenches com-plete all as specified and di-rected. Note: - Local approved tibba dry sand after removal of vegetation’s, grass and other deleterious substances shall be used for sand cushioning & Only punned thickness shall be measured and paid.

Supplying and laying un-reinforced precast concrete cable cover, class HVP, type 1 with peak, size 300mm x 180mm x 40mm laid dry in trenches for the protection of underground cable complete all as specified and directed.

M&L for boring of hole under road/pavement/hard standing or any other situation by manual means and suitable for passing of GI pipe 150 mm bore and making good both ends complete all specified and directed.

S&F 150 mm bore GI pipe (light grade) with necessary accessories/ fittings for cable protections for crossing of culverts/nallah /road etc complete all as specified and directed.

Supplying, laying, jointing, testing and commissioning HT under ground electric power cable Crossed linked polyethylene (XLPE) insulated, screened PVC bedded, galvanised steel strip or wire armoured electric power cable (heavy duty) with aluminium conductor, 11000 Volts earthed cross sectional area 185 Sqmm , 3 core ISI marked as per IS 7098 Part-2, laid in trenches/ laid under floor/ laid in ducts or fixed on poles/wall etc complete all as specified and directed. Note : - The contractor shall arrange factory visit for the rep of Accepting Officer for testing of HT cable before dispatch. “Property of GE E/M Lucknow” shall be printed in every 10 Mtr of cable.

Supplying, laying, jointing, testing and commissioning HT under ground electric power cable Crossed linked polyethylene (XLPE) insulated, screened PVC bedded, galvanised steel strip or wire armoured electric power cable (heavy duty) with aluminium conductor, 11000 Volts earthed cross sectional area 240 Sqmm , 3 core ISI marked as per IS 7098 Part-2, laid in trenches/ laid under floor/ laid in ducts or fixed on poles/wall etc. complete all as specified and directed. Note for srl item No 08 & 09:- Excavation, earth work, sand cushioning, cable cover for protection of cable and pipe shall be measured and paid separately under resective items of schedule.

Material & labour for Cable jointing kit for 11 KV (Earthed) grade cable for straight through cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 185 sqmm complete all as specified and directed.

Material & labour for Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 185 sqmm complete all as specified and directed.

Material & labour for Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 240 sqmm complete all as specified and directed.

M&L Boring of holes under road, pavement, hard standing by trenchless technology using ultra sound technique and necessary machine including material and labour for HDPE pipe of 160 mm dia suitable for 0.6 mpa working pressure complete all as specified and directed. Note:- The surface damaged during the work, including interlocking bricks/tiles, kerb stone, footpaths, hard standing and roads have to be made good during execution of the item within a period of 72 hrs. The cost of repair of make good is deemed to be included in the quoted cost, nothing extra shall be admissible on this account.

S&F cable route markers made out of PCC block (1:3:6) type C-1 using 20 mm graded stone aggregate of size (bottom 400mmx 100 mm thick)+Top-300mmx100mm thick+height-1200mm (60 cm burried in ground with ` DANGER/11 KV UG cable MES' embossed on route marker including excavation and earth work and painting the yellow colour above the ground and write the black colour complete all as specified and directed.

Supply, installation, testing & commissioning, inspection, painting and testing complete with all accessories of transformer of capacity 5 MVA step down, outdoor foundation mounted, double copper wound,3 Phase, 50 Hz, AC, Oil im-mersed, ONAN/ONAF confirming to IS-2026 and IEC62770 including cooling fans, ex-ternal cooling tubes/radiator cores type having voltage ratio 33000/11000 volts (corresponding to principal tapping ) winding delta connecting on Primary side (HV Side) and star connected on secondary side (LV side) in accordance with vector symbol Dyn11 (vector Group) with neutral brought out on LV side and looping on HV side for contact output so as to alter/vary secondary voltage by (+) 5 to (-) 15% in equal steps of 1.25% to be changed by means of (OLTC) on load Tap Changer with RTCC and AVR. Supply, installation of RTCC panel with AVR and marshaling box . Transformer shall be of BOLTLESS core design. Transformer shall be double wound, core type with low loss, non ageing, high permeability PRIME GRADE, CRGO with MOH (Magnetic oriented steel) grade or Better, Perfectly insulated and clamped to minimize noise and vibrations and transformer shall be procured only after approval from GE in respect of name of manufacturer of transformer as well as manufacturer of core. The limit of temperature rise after continuous full load runs as specified in IS/IEC 60076 shall be suitably adjusted to suit the ambient temperature of maximum 50 degree Celsius prevailing at site all as specified and directed including having following characteristics :-

The transformer shall confirm to the latest edition of applicable standard as follows :- (i) IS-2026, for tests and tolerance of guaranteed Particulars, (ii) IS-3639 for Fitting and accessories (iii) IS2099 for Bushing >1000V (iv) IS-7421 for Bushing <1000v (v) IS-1271 for Electrical insulation classified by Thermal stability

(a) Winding (i) HV Winding -Layer/disc winding (ii) LV Winding-Helical/Disc winding

(b) Insulation Level (i) HV-170 (ii) LV-70

(c) Insulation level (Power frequency with Stand KV RMS) (i) HV 70 (ii) LV-28

(d) Tapping Range (+)5% to (-) 15% @1.25% (e) Tape Changer Type -On load Tap Changer +RTCC+AVR. AVR shall be communicable on ModBus protocol. (f) Temperature Rise (Oil/Winding) -50/55 Degree Centigrade & Buchloz relay for protection Double float type having contact for alorm & trip. (g) Hot spot temperature over a maximum yearly weight average ambient temp of 32 Degree Centigrade-98 Degree Centigrade (h) Termination HV/LV-Cable Box (j) Short Circuit thermal withstand time-02 seconds (k) %impedance at 75 degree cent rated current and frequency (Subject to IS Tolerance) at 5 MVA base %7.15 (l) No load loss at rated voltage and frequency (subject to IS Tolerance) (KW)-6 (m) Load loss at rated current and 75 degree C (KW) (subject to IS Tolerance )at 5 MVA base -36 (n) % load at which Max Efficiency occurs %-33.81 (o) Regulation at full load 0.8 PF%.-5.75 (p) Regulation at full load upf%-1.05

The transformer should have following fitting and accessories :- (a) Cable Boxes on 11 KV secondary side for 240 Sqmm , 3 core XLPE cable . (b) HV Bushing with arching horn on 33 KV side (c) Oil conservator with filling hole and cape drain valve and oil level gauge. (d) Dehydrating breather with connecting pipe first fill of dehydrating agent and oil seal. (e) Explosion relief vent mounted on tank with double diaphragm and equalizer pipe connection to conservator air space (Pressure release device) (f) Air relief plug. (g) Shut off valve between the conservator and bushels relay. (h) Drain valve with threaded adopter. (j) Filter valve with threaded adopter (Top and bottom). (k) Wheels (l) Rating plate and terminals marking plate. (m) Extra bushing for neutral out side the LV Side (n) Hand hole sufficient size to assess the interior of the tank. (o) First filling of the transformer oil as per IS 2026-2011. (p) Cover Lifting eyes. (q) Double float Buchholz relay with trip and alarm contacts. (r) 150mm dial type thermometer for winding temperature indicator having range0-12 centigrade vapor pressure type with maximum reading pointer/Max temperature indicator and resetting device with alarm/trip contact and additional contact for switching on the cooling fan. (s) 150mm dial type thermometer for oil temperature indicator with 02 sets of contacts for alarm and trip having range 0-12 centigrade vapor pressure type with maximum reading pointer/Max temperature indicator and resetting device with alarm/trip contact . (t) Shut off valve between cooling tubes and tank. (u) Pressure Release Valve (PRV) with one set of trip contact. (v) Magnetic Oil gauage (MOLG) with one set of trip contact.

NOTE:- (i) Any other fitting/accessories necessary for satisfactory operation of the transformer shall be provided whether it is specifically mentioned or not cover in the above item. (ii) The contractor shall within 15 days of commencement of the work as per Work order no 01 will submit three sets of final version of all the drawings of transformer for approval Accepting Officer. After approval of drawing from Accepting Officer the contractor shall submit three good quality copies of the approved drawings for department use. (iii) The transformer manufacture must have an in house NABL accredited lab for testing of transformer. (iv) RCC foundation design to be submitted along with design of transformer, cost of construction of RCC foundation including construction materials, necessary earth work and excavation as per manufacturer design all as required at site shall be paid and measured separately under respective items. Design of foundation to be submitted along with drawing of transformer for approval of Accepting Officer. (v) The oil temperature and winding temperature gauges shall be housed in a marshaling box made up of MS sheet as per manufacturer recommendations with hinged door and having glass front side of the box and provision for entry of cables and compression glands. (vi) Inspection of transformer will be done by rep of Accepting Officer in factory premises in two phases:- (a) Before assembly of transformer without filling of transformer oil. (b) After complete assembly of transformer, final testing of transformer as per relevant IS presence of rep of AO. (c) Post installation of Transformer precommissioning inspection will be carried out by SEI of HQ CECC.

Supplying, transporting, erecting, testing and commissioning of 36 KV, 1800MVA, 1250A, 50Hz voltage class outdoor type Vacuum Circuit Breaker for use on system voltage 33 KV. The circuit breaker and accessories shall conform to IEC-62271-100 or IS 13118 and other relevant IEC/IS standard. The circuit breaker shall be complete with terminal connection, operating mechanism, control cabinets, cable accessories like gland, terminal block, lugs, necessary steel support structure for CB and control cabinet The circuit breaker shall be required to performs as per technical parameters given below:-

(a) Installation - Outdoor, 3-pole, Vacuum Live-Tank, Porcelain Clad, Switchyard Breaker (b) Rated Voltage - 36 KV (c) Rated Current - 1250A or higher up to 2000Amps (d) Power frequency with stand voltage (KV rms)- 70 KV (e) 12/50 microsecond lighting impuls with stand voltage (KV Peak)-170 kVp (f) Rated short circuit current breaking capacity (3 Sec ) at rated voltage specified 31.5 KA (g) Control Voltage incl. trip/close coil - 110 V DC (h) Spring Charging Voltage - 230VAC (j) Symmetrical interrupting capacity (KA/RMS) 31.5 KA (k) Rated short circuit Making Current (KAP)-80A (l) Out of phase breaking capacity (KA rms) as per IEC (m) Rated operating duty as per IEC(o) Temp rise over the design ambient temperature -As per IEC 62271-100 (n) Operating Mechanism -Spring (o) Creep age distance as per IEC-900mm (p) No of trip/close coil 110 V DC-02 Nos (q) Tripping system - 110 V DC Note:- (i) Cost of supply and fix of Outdoor type Terminal Kiosk (TK) having termi-nals/disconnecting-links for termination of CT/PT wiring including PT secondary fuses complete all as required at site are deemed to be included in the quoted rate. (ii) Cost of construction of foundation including construction material and necessary earth work as per manufacturer design for breaker & TK complete all as required at site are deemed to be included in the quoted rate.

Supply, installation laying & testing of 33 KV control & relay panel indoor type for VCB. The panel shall be with back access double door arrangement, dust and vermin proof , IP -4X class protection and made 2mm , CRCA MS sheet powder coated finish over one coat of red oxide primer both side operating type, including internal wiring using 1.1kV FRLS insulated multistrand copper conductor cable (4.00 sqmm for CT/PT and 2.5 sqmm for other circuit), numbered and colour coded as per IS-5578/1984 having suitable entry for cable consisting of the following:-

(A) Main Protection Relay shall be numerical IED Relay confirming to IEC60255, having 04CT+04PT Inputs with microprocessor based protection scheme for tripping the breaker on various faults like (i) Directional over-current or earth-fault in any of the three phases, (ii) circuit-breaker-failure alarm, (iii) Interpanel tripping/blocking signals via GOOSE based peer-to-peer communication, on IEC61850 protocol. (iv) Integrated arc flash protection with current and light sensing The relay shall be communicable on IEC 61850 GOOSE platform over RJ-45/USB/FO port, and fully integrated with the feeder, internally capturing feeder statuses incl. various status, Line-Current, Line-Voltage, Breaker On/Off/Spring. Charged, Trip Circuit Failure (from TCS relay), AC Supply Fail, PT Fuse failure relay, Local-Remote etc. and display locally on a built-in back-lit LCD screen with mimic as a Single-Line-Diagram with power & frequency measurements and suitably labeled status LEDs. Relay setting should be possible through inbuilt software or through additional software supplied by the relay manufacturer. Make of the relay shall be same as make of switchgear panels.

(B) Flush mounted auxiliary relays for:- (i) DC supply supervision relay. (ii) Master trip relay (iii) Main Buchholz trip (iv) Buchholz OLTC Trip (v) SPR & PRV trip. (vi) Winding temp high trip (vii) Oil temp high trip. (viii) Main Buchholz alarm (ix) Winding temp High alarm (x) Low Oil level alarm (xi) Oil temp high alarm (xii) Diffential protection using Voltage/Current tripping complete all as per design.

(C) Metering (i) Metering Equipment incl. 01 x Digital Voltmeter (Acc.Cl.0.5), 01 x Digital Ammeter (Acc.Cl.0.5). (ii) 01no. Multi-Function-Meter (Acc.Cl.0.5) shall be provided with LCD display for measuring current, voltage, power, power-factor and energy-parameters, Total Harmonic Distortion and Max. Demand Indication, same shall be communicable on ModBus via RS485 port.

(D) Indicating Lamp (i) Breaker ON/OFF/TRIP/Spring-Charged, (ii) R-Y-B, (iii) DC Available LED with push-button (iv) Trip Circuit Healthy

(E) Semaphore indicator (i) Circuit Breaker ON, OFF

(F) Control Equipment incl. :- (i) 01 x TNC Switch, (ii) 01 x Local/Remote Switch, (iii) 01 x Emergency Trip Push Button, (iv) MCBs for AC (v) MCBs for DC (vi) Heater Switch with Thermostat - 01no. (vii) 3-pin socket with ON/OFF switch - 01no. (viii) CFL Lamp with ON/OFF switch - 01no.

(G) 08-Window Annunciator with Hooter to indicate following alarms :- (i) OC Trip, (ii) EF Trip (iii) Trip Circuit Failure, (iv) Inter-Tripping Fault, (v) PT Fuse Failure The Annunciator will be complete with required Acknowledge/Test buttons as required

(H) Test Terminal Block for CT

(J) The cost of construction of foundation as per manufacturer design, including foundation frame (supplied by OEM) for control panel as required at site are deemed to be included in the quoted rate.

Supply installation, testing and commissioning of Potential Transformer (PT) oil cooled out door single phase ( Earthed type) of voltage ratio 33 KV/110 V class 3P - 0.5-3, burden 50 VA insulation level of 70/170 KV as specified below:- (a) Normal System Voltage-33 KV (b) Highest System Voltage-36 KV (c) Rated Primary voltage- 33 KV/√3 (d) Rated secondary voltage- 110 V/√3 (e) Nos of Lt winding 2 (f) Metering Core Accuracy class - 0.5 (g) Metering Core Rated Burden- 50 VA (h) Nos of Phase- Single (Earthed Type) (j) Protection core accuracy class - 3P (k) Protection core rated Burden - 50 VA (l) Rated Voltage Factor - 1.2 continuous & 1.5 for 30 Sec (m) Insulation Level- 36/70 KV.170 KVP (n) Temp rise at rated continuous thermal current over ambient at site - 50ºC (o) Porcelain Bushing type - Hollow Cylinder (p) 1.2/50 mcro second impulse withstand test vol -170 KV (Peak) (q) Creepage distance of HV bushing - 900 mm (min) (r) Primary & Secondary winding material - Copper

Supply, installation, testing and commissioning of 33 KV current transformer oil cooled out door single phase, oil immersed and self cooled type of ratio 100-50/5-5-5-5/1-1-1-1 suitable for metering and protection equipment installed on control panels terminal block as specified below :- (a) Normal System Voltage-33 KV (b) Highest System Voltage-36 KV (c) Rated Primary current- 100-50 Amp (d) Rated secondary current- 5 Amp/1 Amp (e) Nos of Core - 4 (f) Core01: Accuracy class 5P10, 10VA, ALF ≥10 (g) Core02: Accuracy Class 1.0, 10VA, ISF ≤ 5 (h) Core 03 Protection core accuracy class -PS, Protection knee point voltage- 300 Volt at lower ratio (j) Core 04-Spare (k) Continuous thermal current rating 120 % of rated primary current (l)Temp rise at rated continuous thermal current over ambient at site - Less than or equal to 45 degree C (m) Insulation Level- 36/70 KV.170 KVP (n) 1.2/50 Micro second impulse withstand test voltage- 170 KV (peak) (o) Short time thermal current rating for one second - 25 KA/1 Second (p) Dynamic Current Rating - 62.5 KA ( peak) (q) Porcelain Bushing type - Hollow Cylinder (r) Creepage distance of HV bushing - 900 mm (min) (s) Primary & Secondary winding material - Copper

Supplying , installation & testing Isolator (horizontal type) suitable for outdoor type three phase double break, center rotating type suitable manual operation 3 moving contact of all isolator (rotate through 90 degree from their fully closed position to fully open position so that the break is distinct and clearly visible from ground lever conforming to IS 9921/IEC-62271-102, phase, rated nominal/ maximum rated voltage 33/36 KV, rated current 1250 Amp including taking down old unserviceable isolator etc complete as specified and directed

Supplying and fixing metal oxide surge arrester suitable for maximum system voltage of 36 KV and arrestor rated voltage 30 KV, maximum continuous operating voltage 25 KV, nominal discharge current 10 KAp line discharge class 2, high current withstand 100 KAp, maximum residual voltage at NDC lighting current 90 KVp, temperature over voltage capability for 10 sec 52 KVp and distance 900 mm confirming to IEC 60099-4 & IS: 3070 complete all as specified and directed.

Supplying , installation & testing Post insulator suitable for rated nominal/ maximum rated voltage 33/36 KV, rated current 1250 Amp including taking down old unserviceable Post insulator complete all as specified and directed.

S&F disc insulator with hardware fittings 33 KV grade 70KN to be used for power lines The Insulators covered by this specification should conform to the latest editions of Indian Standard Specification IS:731, IS:2544 and IS:5350.The Porcelain shall be sound, free from defect, thoroughly vitrified and Smoothly glazed complete all as specified and directed.

S&F Pin insulator with hardware fittings 33 KV grade 70KN to be used for power lines The Insulators covered by this specification should conform to the latest editions of Indian Standard Specification IS:731, IS:2544 and IS:5350.The Porcelain shall be sound, free from defect, thoroughly vitrified and Smoothly glazed complete all as specified and directed.

Supplying, installing, testing and commissioning of Indoor arc flash protected Draw-Out with roll on floor type Vacuum Circuit Breaker Panel , rated for 11kV, 1250Amp, 26.3kA/3-sec, comprising of 1 No bus coupler with riser ,01 No Incomer and 03 Nos Outgoing VCB Panels confirming to IEC 62271-200, Internal Arc Classified IAC AFLR – 26.3kA for 1sec, Accessibility Class LSC2B-PM Class, comprising of 1250Amp, continuous rated Copper busbars and droppers, 02 Nos . Rack-In-Rack-Out Handles, structure made from AluZinc/GI sheets to prevent corrosion and rusting. The complete panel including HT and LT chamber with FRLS wiring shall be manufactured by approved OEM at its own facility, and same will be verified via stage/final inspection. The Board shall consist of following panels:-

(A) 01 x Bus Coupler Panel with bus riser panel, each comprising of :- (i) 11kV, 1250Amp, 26.3KA/3-sec, Draw-Out Vacuum Circuit Breaker as per IEC-62271-100 with roll on floor type Vacuum Circuit Breaker having 03nos. vacuum bottles of same make as of circuit breaker, motorized spring charging mechanism (230VAC) with integral spring charging handle for manual charging, associated push-buttons, anti-pumping feature, and associated Shunt Trip/Close Coils (110VDC). (ii) LED Indications - (a) Breaker ON/OFF/TRIP/Spring-Charged (iii) Control Equipment incl. :- (a) 01 x TNC Switch, (b) 01 x Local/Remote Switch, (c) 01 x Emergency Trip Push Button, (d) MCBs for AC (e) MCBs for DC (f) Heater Switch with Thermostat - 01 No. (g) 3-pin socket with ON/OFF switch - 01 No. (h) CFL Lamp with ON/OFF switch - 01 No. (iv) Bus-riser panel with matching busbar to connect with the remaining bus-section comprising of: (b) Heater Switch with Thermostat - 01no. (c) LED Indications, R-Y-B - 01set (d) 3-pin socket with ON/OFF switch - 01 No. (e) CFL Lamp with ON/OFF switch - 01 No.

(B) 01 x Incomer Panel comprising of :- (i) 11kV, 1250Amp, 26.3kA/3-sec, Draw-Out Vacuum Circuit Breaker as per IEC-62271-100 with roll on floor type Vacuum Circuit Breaker having 03 Nos. vacuum bottles of same make as of cir-cuit breaker, motorized spring charging mechanism (230VAC) with integral spring charging handle for manual charging, associated push-buttons, anti-pumping feature, and associated Shunt Trip/Close Coils (110VDC). (ii) Current Transformers 11kV, 300-150/1-1-1, Core1: Class 5P10, 2.5VA, Core2: Class 0.5, 2.5VA, Core3: Class PS-X - Set of 03 Nos. The 'PS' core will be of suitable knee point voltage and ratio so as to successfully implement Transformer Differential protection scheme for the upstream existing power transformer. (iii) Potential Transformers, Draw-out type for easy maintenance, 11kV/rt3:110V/rt3, 50VA, Cl.0.5 with associated gun-type HRC fuses and MCBs for HT/LT isolation - Set of 03 Nos (iv) Main Protection Relay shall be numerical IED Relay confirming to IEC60255, having 04CT+04PT Inputs with microprocessor based protection scheme for tripping the breaker on vari-ous faults like (a) Directional over-current or earth-fault in any of the three phases, (b) circuit-breaker-failure alarm, (c) interpanel tripping/blocking signals via GOOSE based peer-to-peer communication, on IEC61850 protocol. (d) Integrted arc flash protection with current and light sensing The relay shall be communicable on IEC 61850 GOOSE platform over RJ-45/USB/FO port, and fully integrated with the feeder, internally capturing feeder statuses incl. various status, Line-Current, Line-Voltage, Breaker On/Off/Spring.Chrgd, Trip Circuit Failure (from TCS relay), AC Supply Fail, PT Fuse failure relay, Local-Remote etc. and display locally on a built-in back-lit LCD screen with mimic as a Single-Line-Diagram with power & frequency measurements and suitably labelled status LEDs. Relay setting should be possible through inbuilt software or through addtional software supplied by the relay manufacturer. Make of the relay shall be same as make of switchgear panels.

(v) Metering Equipment including:- (a) 01 x Digital Voltmeter (Acc.Cl.0.5), 01 x Digital Ammeter (Acc.Cl.0.5), (b) 01 No Multi-Function-Meter (Acc.Cl.0.5) shall be provided with LCD display for measuring cur-rent, voltage, power, power-factor and energy-parameters, Total Harmonic Distortion and Max. Demand Indication, same shall be communicable on Mod Bus via RS485 port. (vi) LED Indications :- (a) Breaker ON/OFF/TRIP/Spring-Charged, (b) R-Y-B, (c) DC Available LED with push-button (d) Trip Circuit Healthy (vii) 06-Window Annunciator with Hooter to indicate following alarms :- (a) OC Trip, (b) EF Trip (c) Trip Circuit Failure, (d) Inter-Tripping Fault, (e) PT Fuse Failure The Annunciator will be complete with required Acknowledge/Test buttons as required (viii) Control Equipment incl. :- (a) 01 x TNC Switch, (b) 01 x Local/Remote Switch, (c) 01 x Emergency Trip Push Button, (d) MCBs for AC (e) MCBs for DC (f) Heater Switch with Thermostat - 01no. (g) 3-pin socket with ON/OFF switch - 01no. (h) CFL Lamp with ON/OFF switch - 01no.

(ix) Flush mounted Auxillary Protection Relays including:- (a) Trip Circuit Supervision Relay, (b) Master trip Relay, (c) PT Fuse failure relay. (d) DC Supervision Scheme (x) Suitable Disconnecting Link type terminal arrangement shall be provided for interfacing PS-Class CTs installed in the panel with Transformer differential relay situated in the 33kV CRP for achieving the required protection.

(C) 03 x Outgoing Panel, each comprising of :- (i) 11kV, 1250Amp, 26.3KA/3-sec, Draw-Out Vacuum Circuit Breaker as per IEC-62271-100. Vac-uum Circuit Breaker having 03nos. vacuum bottles of same make as of circuit breaker, motorized spring charging mechanism (230VAC) with integral spring charging handle for manual charging, associated push-buttons, anti-pumping feature, and associated Shunt Trip/Close Coils (110VDC). (ii) Current Transformers 11kV, 200-100/1-1, Core1: Class 5P10, 2.5VA, Core2: Class 0.5, 2.5VA - Set of 03 Nos. (iii) Main Protection Relay shall be numerical IED Relay confirming to IEC60255, having 04CT Inputs with microprocessor based protection scheme for tripping the breaker on various faults like (a) over-current or earth-fault in any of the three phases, (b) circuit-breaker-failure alarm, (c) interpanel tripping/blocking signals via GOOSE based peer-to-peer communication, on IEC61850 protocol. (d) Integrated arc flash protection with current and light sensing The relay shall be communicable on IEC 61850 GOOSE platform over RJ-45/USB/FO port, and fully integrated with the feeder, internally capturing feeder statuses incl. various status, Line-Current, Breaker On/Off/Spring. Chrgd, Trip Circuit Failure (from TCS relay), Local-Remote etc. and display locally on a built-in back-lit LCD screen with mimic as a Single-Line-Diagram with cur-rent measurements and suitably labeled status LEDs. Relay setting should be possible through inbuilt software or through additional software supplied by the relay manufacturer. (iv) Metering Equipment including:- (a) 01 x Digital Ammeter (Acc.Cl.0.5) (v) LED Indications - (a) Breaker ON/OFF/TRIP/Spring-Charged, (b) Trip Circuit Healthy

(vi) 04-Window Annunciator with Hooter to indicate following alarms :- (a) OC Trip, (b) EF Trip (c) Trip Circuit Failure, (d) Inter-Tripping Fault, The Annunciator will be complete with required Acknowledge/Test buttons as required (vii) Control Equipment incl. (a) 01 x TNC Switch, (b) 01 x Emergency Trip Push Button, (c) 01 x Local/Remote Switch, (d) MCBs for AC/DC isolation (e) Heater Switch with Thermostat - 01no. (f) 3-pin socket with ON/OFF switch - 01no. (g) CFL Lamp with ON/OFF switch - 01no. (viii) Flush mounted Auxillary Protection Relays incl. (a) Trip Circuit Supervision Relay, (b) Master trip Relay,

(D) The panel shall be complete with all allied items and accessories, including:- (i) Cost of construction of foundation as per manufacturer design, including foundation frame (sup-plied by OEM), channels etc. for HT Panel as required at site are deemed to be included in the quoted rate. (ii) Each VCB panel being floor-mounted, air-insulated, fully-compartmentalizes The OEM shall supervise and certify the commissioning/charging of equipment. (iii) Foundation frames shall be inclusive in the scope of supply of OEM. (iv) All Outgoing VCBs will have inter-tripping logic in place to ensure that Incomer breaker imme-diately trips in case of failure of opening of outgoing VCB experiencing feeder fault. Special and dedicated Alarm shall be in place to issued the user. This facility should be implemented over soft-logic, and can be disabled by authorized personnel without requiring any on-site re-wiring. Note:- (i) License parter, system integrator, panel builder, half-panel is not allowed for 11kV VCB Panel. All works shall be done at own works. (ii) All items will be transported in wooden packaging to avoid any damage. Acceptance of material will be discretion of GE. Contractor has to remove the material in case of rejection of material at no extra cost. (iii) Factory acceptance test shall be carried out for 11 KV HT VCB Panels. (iv) The incommer panel will be connected with existing AREVA bus coupler , cost of fabrication of adaptor panel made of MS CRCA sheet 16 gauge thick duly painted matching with VCB includ-ing alteration/couple and matching with bus bar required at site shall be deemed to be included in the quoted rate. (v) Cost of disconnection of existing HT cables from existing RMU and taking out from duct and loop and reconnection with new VCB panels shall deemed to be included in the quoted rate (HT Cable and Joints required at site shall be measured and paid separately under respective items of schedule).

Supplying , installation, testing and commissioning of 12 KV, 630 Amps having short circuit capacity 21kA/3-sec, Outdoor (IP54), RMU (Ring main unit) 6-way comprising of 02 Nos motorized operated Load Break Switch and 04 Nos 630 Amp Fixed-Type motorized spring-charging VCB electrolytic grade copper busbars all inside single, gas-filled, robotically welded stainless steel 304 (Non Ferrite Non Magnetic Grade) tank with min. thickness 3+0.5 mm, IP 67 Degree of Protection , internal-arc classified 21kA/1sec, on-site-repairable with site replicable bushing/coupling/mechanism, gas refilling etc. The enclosure shall have padlock able double-door access with anti-theft hinges, fully covering the front facia and cable boxes to ensure fail-safe anti-theft protection. The unit alongwith Bus-connected, fixed-type Auxiliary transformer shall include the following along with all necessary accessories and fittings as required at site.

(A) 02 Nos. Incoming Load Break Switch module each consisting of following accessories :- (i) Each switching-unit is designed as a three position switch. This three function switch combines the functions of switch-disconnector and earthing switch. (ii) 12V, 630A Load Break Switch with interlocked line-earthing scheme both short circuit current - 21kA/3-sec, Making Capacity - 50kAp -01 No (iii) Auxiliary contacts - 1NO + 1NC-01 No (iv) Spring-assisted snap-action motorized mechanism with un-inhibited operating shaft for emer-gency manual operation with integrated earthing switch -01 No (v) Cable terminals (site replacable Cable bushings situated not beyond 300mm from cable-cover to allow ease of access for installation/testing/replacement purposes) with double-door arrangement for enhanced safety (IP54+IP3X) interlocked to prevent access upto 11 KV , 185 Sqmm , 3 Core , XLPE AL cable termination in live-condition. Each Set of 03 (vi) Right angle boots (push on type)-Each Set of 03 (vii) Arc proof cable covers having cable entry from bottom , front with Interlocking mechanism including earth switch -01 No (viii) Capacitive voltage indication fixed type system as per IEC61243 with LED - 01 Set (ix) Fault Passage Indicator - It is to be provided for each incomer load break unit, FPI with LED/digital display to be added for detection of cable fault-01 No (x) ON, OFF, EARTH mechanical indication on the front mimic of the panel - 01 No

(B) 04 Nos. Outgoing VCB module each consisting of following accessories :- (i) Each function-unit consists of a vacuum-circuit breaker in combination with a three position-switch. The three-position-switch fulfills the operation of the disconnector-function and earthing function. (ii) 12kV, 630A Fixed-Type VCB module with series disconnector cum earthing switch of short cir-cuit breaking current/withstand - 21kA/3-sec, Making Capacity - 50kAp-01 No (iii) Aux. contacts - 1NO+1NC-01 No (iv) Stored-energy motorized high-endurance spring charging mechanism (M1+), with inbuilt spring-charging lever and mechanically latched ON/OFF push-buttons to allow handle-less and un-inhibited operation -01 No (v) Cable terminals (site replacable Cable bushings situated not beyond 300mm from cable-cover to allow ease of access for installation/testing/replacement purposes) with double-door arrangement for enhanced safety (IP54+IP3X) interlocked to prevent access upto 11 KV , 120 Sqmm , 3 Core, XLPE AL cable termination in live-condition. Each Set of 3 (vi) Right angle boots (push on type)-Each set of 3 (vii) 3O/C + 1E/F self powered numerical protection relay with Low and High set for Over current and Earth Fault. Relay should have facility to display the maximum loaded phase current al-so.Relay shall record minimum 5 fault records with time stamping. Relay shall be communicable with RS 485 Port on MODBUS Protocol-01 No (viii) Associated ring-core cast-resin insulated CTs 200/100/1 Amp , 2.5 VA, 10P10 for protection - Each Set of 3 (ix) Vacuum circuit breaker with high mechanical endurance of 10000 operations (M2 Class) (x) To ensure reliablility of operation Vacuum interrupter shall be of same make as Ring Main Unit. (xi) Arc proof cable covers with self Interlocking mechanism with earth switch -01 No (xii) Capacitive voltage indication fixed type system as per IEC61243 with LED -01 No (xiii) Push button for breaker trip (xiv) Shunt trip coil 24V DC - 01 (xv) ON, OFF, TRIP mechanical indication on the front mimic of the panel - 01. (xvi) Emergency Trip Push Button - 01.

(C) 01 No. Bus-connected, fixed-type Auxiliary transformer accomodated in separate com-partment of matching height and depth, positioned along-side or top of RMU to provide required aux. supply and metering consisting of following accessories :- (i) 1-Ph (11kV/rt3):230VAC, 500VA Auxiliary transformer-01 No (ii) 2x12 Volt DC battery-01 Set (iii) Battery charger-01 No (iv) HRC fuse-links for primary side isolation and AC/DC MCBs for secondary isolation-01 Set (v) Anti-condensation space-heater-01 No (vi) CFL lamp for illumination and 3-pin socket with switch -01 No (D) Additional equipment deliverd separately or mounted separately :- (i) Operating Handle for Manual Isolator/Disconnector / Earthing Operation-02 Nos (ii) Standard Manometer -01 No (iii) Operation and Maintenance Manual -01 No (iv) Installation & Commissioning Manual -01 No (v) Cable clamping provision (standard) -01No

Note for item No 26, 27 & 28 (i) It is preferable to have all feeder-switches inside single stainless steel compartment with in-comer feeders at the extremities to prevent chances of failure due to plug-in coupling arrangement. (ii) Necessary interlocking arrangement shall be provided for safety and operations (iii) Above switchgear shall confirm to relevant IEC (62271-200) for design, manufacturing and in-ternal arc compliance. Any claims towards internal arc compliance, number of mechani-cal/electrical/short-circuit operations, gas-leakage rates etc. shall not be accepted unless proven via type-test reports of model being offered. (iv) Cost of construction of foundation including construction material, necessary earth work and excavation as per manufacturer design for RMU complete all as required at site and as directed by Engr-in-charge are deemed to be included in the quoted rate. (v) The contractor shall arrange factory visit for the rep of accepting officer for testing of RMU be-fore dispatch. (vi) Pre-commissioning inspection will be carried out by SEI of HQ CE CC.

Supplying , installation, testing and commissioning of 12 KV, 630 Amps having short circuit capacity 21kA/3-sec, Outdoor (IP54), RMU (Ring main unit) 4-way comprising of 02 Nos motorized operated Load Break Switch and 02 Nos 630 Amp Fixed-Type motorized spring-charging VCB electrolytic grade copper busbars all inside single, gas-filled, robotically welded stainless steel 304 (Non Ferrite Non Magnetic Grade) tank with min. thickness 3+0.5 mm, IP 67 Degree of Protection , internal-arc classified 21kA/1sec, on-site-repairable with site replacable bushing/coupling/mechanism, gas refilling etc. The enclosure shall have padlockable double-door access with anti-theft hinges, fully covering the front facia and cable boxes to ensure fail-safe anti-theft protection. The unit alongwith Bus-connected, fixed-type Auxiliary transformer shall include the following along with all necessary accessories and fittings as required at site.

(A) 02 Nos. Incoming Load Break Switch module each consisting of following accessories :- (i) Each switching-unit is designed as a three position switch. This three function switch combines the functions of switch-disconnector and earthing switch. (ii) 12V, 630A Load Break Switch with interlocked line-earthing scheme both short circuit current - 21kA/3-sec, Making Capacity - 50kAp -01 No (iii) Auxiliary contacts - 1NO + 1NC-01 No (iv) Spring-assisted snap-action motorized mechanism with un-inhibited operating shaft for emer-gency manual operation with integrated earthing switch -01 No (v) Cable terminals (site replacable Cable bushings situated not beyond 300mm from cable-cover to allow ease of access for installation/testing/replacement purposes) with double-door arrangement for enhanced safety (IP54+IP3X) interlocked to prevent access upto 11 KV , 185 Sqmm , 3 Core , XLPE AL cable termination in live-condition. Each Set of 03 (vi) Right angle boots (push on type)-Each Set of 03 (vii) Arc proof cable covers having cable entry from bottom , front with Interlocking mechanism including earth switch -01 No (viii) Capacitive voltage indication fixed type system as per IEC61243 with LED - 01 Set (ix) Fault Passage Indicator - It is to be provided for each incomer load break unit, FPI with LED/digital display to be added for detection of cable fault-01 No (x) ON, OFF, EARTH mechanical indication on the front mimic of the panel - 01 No

(B) 02 Nos. Outgoing VCB module each consisting of following accessories :- (i) Each function-unit consists of a vacuum-circuit breaker in combination with a three position-switch. The three-position-switch fulfills the operation of the disconnector-function and earthing function. (ii) 12kV, 630A Fixed-Type VCB module with series disconnector cum earthing switch of short cir-cuit breaking current/withstand - 21kA/3-sec, Making Capacity - 50kAp-01 No (iii) Aux. contacts - 1NO+1NC-01 No (iv) Stored-energy motorized high-endurance spring charging mechanism (M1+), with inbuilt spring-charging lever and mechanically latched ON/OFF push-buttons to allow handle-less and un-inhibited operation -01 No (v) Cable terminals (site replacable Cable bushings situated not beyond 300mm from cable-cover to allow ease of access for installation/testing/replacement purposes) with double-door arrangement for enhanced safety (IP54+IP3X) interlocked to prevent access upto 11 KV , 120 Sqmm , 3 Core, XLPE AL cable termination in live-condition. Each Set of 3 (vi) Right angle boots (push on type)-Each set of 3 (vii) 3O/C + 1E/F self powered numerical protection relay with Low and High set for Over current and Earth Fault. Relay should have facility to display the maximum loaded phase current al-so.Relay shall record minimum 5 fault records with time stamping. Relay shall be communicable with RS 485 Port on MODBUS Protocol-01 No (viii) Associated ring-core cast-resin insulated CTs 200/100/1 Amp , 2.5 VA, 10P10 for protection - Each Set of 3 (ix) Vacuum circuit breaker with high mechanical endurance of 10000 operations (M2 Class) (x) To ensure reliablility of operation Vacuum interrupter shall be of same make as Ring Main Unit. (xi) Arc proof cable covers with self Interlocking mechanism with earth switch -01 No (xii) Capacitive voltage indication fixed type system as per IEC61243 with LED -01 No (xiii) Push button for breaker trip (xiv) Shunt trip coil 24V DC - 01 (xv) ON, OFF, TRIP mechanical indication on the front mimic of the panel - 01. (xvi) Emergency Trip Push Button - 01.

(C) 01 No. Bus-connected, fixed-type Auxiliary transformer accomodated in separate com-partment of matching height and depth, positioned along-side or top of RMU to provide required aux. supply and metering consisting of following accessories :- (i) 1-Ph (11kV/rt3):230VAC, 500VA Auxiliary transformer-01 No (ii) 2x12 Volt DC battery-01 Set (iii) Battery charger-01 No (iv) HRC fuse-links for primary side isolation and AC/DC MCBs for secondary isolation-01 Set (v) Anti-condensation space-heater-01 No (vi) CFL lamp for illumination and 3-pin socket with switch -01 No

(D) Additional equipment deliverd separately or mounted seperately :- (i) Operating Handle for Manual Isolator/Disconnector/Earthing Operation-02 Nos (ii) Standard Manometer -01 No (iii) Operation and Maintenance Manual -01 No (iv) Installation & Commissioning Manual -01 No (v) Cable clamping provision (standard) -01No

Supplying , installation, testing and commissioning of 12 KV, 630 Amps having short circuit capacity 21kA/3-sec, Outdoor (IP54), RMU (Ring main unit) ICOG (Incommer outgoing type) comprising of 01 Nos Direct Cable Box for cable entry and 01 Nos 630 Amp Fixed-Type motorized spring-charging VCB electrolytic grade copper busbars all inside single, gas-filled, robotically welded stainless steel 304 (Non Ferrite Non Megnetic Grade) tank with min. thickness 3+0.5mm, IP 67 Degree of Protection , internal-arc classified 21kA/1sec, on-site-repairable with site replacable bushing/coupling/mechanism, gas refilling etc. The enclosure shall have padlockable double-door access with anti-theft hinges, fully covering the front facia and cable boxes to ensure fail-safe anti-theft protection. The unit shall include the following along with all necessary accessories and fittings as required at site.

(A) 01 Nos. Outgoing VCB module each consisting of following accessories :- (i) Each function-unit consists of a vacuum-circuit breaker in combination with a three position-switch. The three-position-switch fulfills the operation of the disconnector-function and earthing function. (ii) 12kV, 630A Fixed-Type VCB module with series disconnector cum earthing switch of short cir-cuit breaking current/withstand - 21kA/3-sec, Making Capacity - 50kAp-01 No (iii) Aux. contacts - 1NO+1NC-01 No (iv) Stored-energy motorized high-endurance spring charging mechanism (M1+), with inbuilt spring-charging lever and mechanically latched ON/OFF push-buttons to allow handle-less and un-inhibited operation -01 No (v) Cable terminals (site replacable Cable bushings situated not beyond 300mm from cable-cover to allow ease of access for installation/testing/replacement purposes) with double-door arrangement for enhanced safety (IP54+IP3X) interlocked to prevent access upto 11 KV , 185 Sqmm , 3 Core, XLPE AL cable termination in live-condition. Each Set of 3 (vi) Right angle boots (push on type)-Each set of 3 (vii) 3O/C + 1E/F self powered numerical protection relay with Low and High set for Over current and Earth Fault. Relay should have facility to display the maximum loaded phase current al-so.Relay shall record minimum 5 fault records with time stamping. Relay shall be communicable with RS 485 Port on MODBUS Protocol-01 No (viii) Associated ring-core cast-resin insulated CTs 200/100/1 Amp , 2.5 VA, 10P10 for protection - Each Set of 3 (ix) Vacuum circuit breaker with high mechanical endurance of 10000 operations (M2 Class) (x) To ensure reliablility of operation Vacuum interrupter shall be of same make as Ring Main Unit. (xi) Arc proof cable covers with self Interlocking mechanism with earth switch -01 No (xii) Capacitive voltage indication fixed type system as per IEC61243 with LED -01 No (xiii) Push button for breaker trip (xiv) Shunt trip coil 24V DC - 01 (xv) ON, OFF, TRIP mechanical indication on the (xvi) Emergency Trip Push Button - 01.

(B) Additional equipment deliverd separately or mounted seperately :- (i) Operationg Handle for Manual Isolator/Disconnector/Earthing Operation-02 Nos (ii) Standard Manometer -01 No (iii) Operation and Maintenance Manual -01 No (iv) Installation & Commissioning Manual -01 No (v) Cable clamping provision (standard) -01No

Supply and laying PVC insulated PVC sheathed cable galvanized steel strip or wire armoured electric control cables (Heavy duty) with stranded Copper conductor of size 2.5 sq mm 10 core 1100 Volts grade complete all as specified and directed.

All as per item No. 29 above but 2.5 sqmm 6 core copper conductor complete all as specified and directed.

Supplying , installation, commissioning & testing float cum boost SCR controlled 30 Volt, 25 Amp Single phase 3 feeder Battery charger and DC distribution board in a common cubicle. The charger is suitable for 230 V+/-10% , AC input and the output is suitable to charge of 30 VDC 100AH batteries and also supply load . The output voltage remains constant within+/-2% for AC input voltage variation 230V +/- 10% and load variation 0-100% Current rating 25 Amp complete all as specified and directed by Engr in-charge

Supplying , installation, commissioning & testing SMF VRLA battery bank 30 Volt , 100 AH con-sisting of 15 Nos cells of 02 Volt each complete with inter -cell cooper connector, SS nut bolt , MS powder coated stand in factory charged condition complete all as specified and directed by Engr in-charge.

Supplying , installation, commissioning & testing float cum boost SCR controlled 110 Volt, 40 Amp Single phase 3 feeder Battery charger DC distribution board in a common cubicle. The charger is suitable for 230 V+/-10% , AC input and the output is suitable to charge of 110 VDC 100AH batteries and also supply load . The output voltage remains constant within+/-2% for AC input voltage variation 230V +/- 10% and load variation 0-100% current rating 40 Amp complete all as specified and directed by Engr in-charge.

Supplying , installation, commissioning & testing SMF VRLA battery bank 110 Volt , 100 AH con-sisting of 55 Nos cells of 02 Volt each complete with inter -cell cooper connector, SS nut bolt , MS powder coated stand in factory charged condition complete all as specified and directed by Engr in-charge.

M & L Danger notice plate made of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters , figures and conventional skull and bones in signal red colour and fixed with M.S clamps , bolts and nuts of approved size, for HT 33 KV/11 KV , 25mmX20mmX 1.6mm size including taking down old one complete all as specified and directed

Supply and laying fire retardant electric insulation synthetic mat having Class 'C', maximum use voltage 33 KV (RMS) 3 mm thick + 10% and having minimum width 1M complete all as speci-fied in IS 15652 -2006. The mate shall be fixed on floor by using adhesive and allied chemical and scaling of all joints and border ends and fixing decorative taps the installed sheet complete all as specified and directed by Engineer -in-charge.

M&L Earthing complete with copper earth plate electrode 60cmx60cmx3.15mm thick, burried di-rectly in ground to a depth not less than 2.25 metres deep below ground level with top edge of earth plate not less than 1.5 metre below normal ground level surrounded with adequate quantity of charcoal dust mixed with salt to a packed thickness of 15 cm all around the plate, using copper strip 20x3 mm as earth strip electrode bolted or rivetted to earth plate at one end and connected to equipment’s at another end, copper strip encased in and including 40 mm dia GI 'light grade' pipe from upper end of earth plate upto equipments,20 dia bore GI pipe 'light grade' as water pipe from earth chamber to upper edge of earth plate, Test point , GI funnel with wire mesh fixed on water pipe and PCC 1:2:4 type B-1 (using 20mm graded stone aggregate) as in pit chamber and RCC pit cover 50mm thick precast RCC 1:2:4 type B-1, duly reinforced with MS TMT bars 8mm dia @ 100 c/c both ways with 10mm dia MS round bar as in lifting handles, excavation, earth work including laying the GI pipe concealed in floor/wall all as described in electric plate of SSR Part I complete all as specified and directed and testing on completion.

M & L for extension of 33 KV bay at New MRS Mild steel structure channel/ angle/ flat iron cross arms, bracings, supports clamps & back plates etc fabricated from MS flat of any size structural steel section channel/angles/MS plate including GI nut, bolt and washers including welding, bending cold or hot drilling hole for bolts in any shape and size as indicated and directed

M&L for preparation of new or previous untreated steel and iron surfaces of any description over 10 cm width or girth , not otherwise described and applying two coats of synthetic enamel paint over a coat of red oxide primer complete all as specified and directed.

S & F aluminium conductor, steel reinforced, single/double run conductor of size moose, aluminium 54/3.53 + steel 7/3.53/panther aluminium30/3.00+steel 7/3.96 on structure , isolator, CTs/LA etc stringing on insulator including 22 SWG aluminium binding wire line connector and jumper including all peg, tie clamps etc complete all as specified and directed.

M&L reinforced cement concrete (Nominal mix) 1:2:4 type B-1 using 20 mm graded crushed stone aggregate as in foundations, including rafts, footings , foundation beams, plinth beams bases for colmns etc. basement slabs, under reamed piles and mass concrete complete all as specified and directed.

M&L for TMT bars 10 mm dia and over, as reinforcement for concrete cut to length, bent to shape re-quired including cranking, bend-ing, spirally hooping for columns, hooking ends and binding with and including mild steel wire (an-nealed) not less than 0.90mm dia, complete all as specified and di-rected.

M&L TMT bars 6 mm dia upto and including 10 mm dia cut to length spacers and binders and including mild steel wire (annealed) not less than 0.9 mm dia or securing with clips complete all as specified and directed

M&L for formwork to flat sides of concrete foundations, footings, bases of columns , raft and raft beams , sides and soffits (if any of foundation and plinth beams and similar work vertical or to batter com-plete all as specified and directed.

M&L Plain cement concrete 1:4:8 type D-2 using 40mm graded crushed stone aggregate 75mm thick as sub base of floors complete all as specified and directed.

M&L for Machine pressed precast concrete interlocking paver block any shape and size confirming to IS 15658-2006 of 60 mm thickness, M-35 Grade set and jointed with neat grey cement and pig-ment including 40mm thick sand cushion etc complete all as specified and directed by Engr in-charge.

Material and labour for spreading of stone aggregate of nominal size not more than 40mm graded inside fencing of RMU /transformer manually without damaging any equipment’s, cable or parts spread-ing & levelling of finished gravel uniformly in layers n. exc. 15 cm thick watered and rammed to true surface complete all as specified and directed

All as per item No 47 above but stone aggregate of nominal size more than 40mm to 63 mm graded complete all as specified and directed.

M&L for plain cement concrete (1:4:8) type D-2 using 40mm graded crushed stone aggregate in foundation, filling and mass concrete complete all as specified and directed.

M&L for plain cement concrete (1:3:6) type C-2 using 40mm graded crushed stone aggregate in foundation, filling and mass concrete complete all as specified and directed.

M&L for plain cement concrete (1:2:4) type B-1 , using 20mm graded stone aggregate as in copings, benching and the like including weathering , slightly rounded or chamered angles and throating for transformer foundation , dwarf wall of fencing etc including necessary form work complete all as specified and directed.

M&L for brick work with fly ash old size, straight or curved on plan exc 6 mtr mean radious built in cement mortar (1:4) for transformer foundation, dwarf wall for fencing etc. complete all as speci-fied and directed.

M&L for rendering 15mm thick in cement mortar (1:4) on fair faces of brick or concrete surface finished fair and even complete for transformer foundation , dwarf wall of fencing etc all as specified and directed .

M&L for two coats of cement base paint over a coat of cement base primer including preparation of newly plastered surfaces etc complete all as specified and directed.

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