REPALCEMENT REPAIR OF UNDERGROUND ELECTRICITY CABLE WITH AB LT CABLE AND SECURITY LIGHTS OF PERIMETER SECURITY FENCE OF AVN BASE AT TANDA UNDER GE N AKHNOOR

S&F arial bunch (AB) LT cable of size 3 core- x50 sqmm+1-core x 16 sqmm+ 1x35 sqmm ALM ARM XLPE 1.1 KV .The 50 sq.mm. phase conductor shall be of aluminium solid round; outer diameter shall be within the limits.• The phase conductor shall be insulated with black weather resistant high-densitypolyethylene (HDPE) suitable to 1100 V insulation. The insulated conductors shall generally conform to the relevant standards.• Conductors: The properties of the aluminium wires before stranding shall be:• Tensile strength not less than 90 N/Sq.mm.• Resistivity at 20 Deg. C not exceeding 0.02845ohm / Sq.mm / m(V) and one bare messenger wire shall be stranded non compacted circular aluminium alloy conductor .all as specified and directed. Make Havells, Gloster,Polycab,KEI Note:- The following hardware fittings and accessories shall be used to install,erect and join the AB cable (i) Suspension clamp with eye hook (ii) Suspension fittings and corresponding eye hook (iii) Dead eye fittinngs (iv) Nylon Tie (v) connectors Note: As the taking down item has already been considered under item 09.

Supply, laying, jointing and testing underground cables XLPE insulated screened PVC bedded galvanised steel strips armoured electric power cables (heavy duty) 1100 volts grade with strandard aluminium conductor of size 95sqmm 3.5 sqmm core all as specified and directed.

Excavation in tranches not exceeding 1.5 m wide and not exceeding 1.5 m deep for foundation of laying cable including getting out in soft/loose soil complete all as specified and directed.

Returning filling in including spreading watering and well ramming in layers not exc 25 cm complete all as specifed .

Removing surplus soil to distance not exceeding 50 m and depositing where directed at a level not exceeding 1.5 m above the starting point complete all as specified and directed .

Double walled corrugated (DWC) HDPE pipe of size 100mm (SN4) including snap fit coupler for protection of cable in underground complete all as specified and directed. Make: Astral, Supreme, Jindal, Prince

Earthing complete with galvanised steel earth plate electrode 600mmX 600mmX 6mm thick buried directly in ground vertically ( earth pit not less than 2.25 meters deep below ground level) with top edge of plate not less than 1.5 metres below ground level, connected to and including galvanised iron wire 4 mm dia and light grade protection pipe of 15 mm dia from earth electrode up to test point or up to 7.5mtr whichever is less by means of GI bolts, nuts, check nuts and washers all as per electrical plate No 3 of SSR Pt-I and GI watering pipe of 20 mm dia medium grade,GI funnel with wire mesh,including charcoal, salt packed all around the earth electrode plate in layers, PCC earth pit chamber 1:3:6 type C1, of size 45X 45X 45 CM,RCC cover 1:2:4 type B1 of size 45X45X6 CM with Reinforcement bars of 8mm dia @120mm c/c excavation/earth work in any strata and returning filling, removal of surplus soil and testing/test point for required value including removing old item complete all as specified and directed.

LED street light fitting 90 Watt 230 V AC outdoor type with high pressure die cast aluminium hosing and heat resistant complete with driver, lamp bracket with impact and corrosion resistant including thermal management in multiple optics complete with IP 65/66 protection complete all as specified and directed.

Dismantling/taking out old unserviceable LT UG Cable all as specified and directed.

S&F LT switch gear control panel board 440 volt AC 3 phase, 4 wire for out door installation " KIOSK TYPE" with sloping canopy fabricated out of steel sections i.e CRCA sheet 3.15 mm thick, angle/channel and flat iron sections of suitable size with openinfg on front, door in two halves fitted with handle and bolts for pad lock. The panel doors shutters fixed with stainless steel hinges, heavy duty and with door stopperts. The door openingf shall not be less than 150 degree. The Construction of panel board shall be dust, vermin proof, IP 54 standard with phosphatised powder coating painting externally and internally to protect against corrosion. The panel shall be mounted on suitable size of channel section having ground clearance 60 cms from grouting bolts, confirming to IEC 60 439 complete duly incorporated with following accessories:- (i) Bus Bar chamber with electrolytic grade aluminium strip with heat shrinkable sleeves with colour code supported on epoxy resin based insulators 4 strip of suitable length for currect rating min 150 Amps (ii) MCCB 4 pole 415 VAC, current rating 250 Amps breaking cap 16 KA at 415 volts = 01 No (Incoming) (iii) MCCB 4 pole 415 VAC, current rating 100 Amps breaking cap 16 KA at 415 volts = 03 No (outgoing) (iv) MCCB 4 pole 415 VAC, current rating 63 Amps breaking cap 16 KA at 415 volts = 06 No (outgoing) (v) Voltmeter digital type 0-500V, 96 mm square flush panel mounting = 01 No (On incoming supply) (vi) Ammeter digital type 0-200 A, with CTs of suitable ratio, 96mm square flush panel mounting = 01 Nos (on main load) (vii) Indication pilot light to operate on direct supply 230 V AC with 2.4 watt bulb (R, Y, B) with smooth lens = 03 Nos (viii) On load changeover (Manual type) of capcity 100 Amp 4 pole = 01 No (ix) Current transformer (bar prijmary low tension) type CBF-0.6-D1 ratio 100/5, 15VA accuracy class-1 = 01 No (Set of three) (x) complete wiring of pabnelboard with FRLS PVC insulated multistranded copper cionductor cables of suitable current carrying capacity end terminated with lugs and bolts and washers