REPAIR/ MAINT OF LT FEEDER PILLAR BOXES, LT UG CABLES AND CONNECTED WORKS OF LT DISTRIBUTION SYSTEM INCLUDING ATTENDING FUSE OFF CALL AT NAD TECHNICAL AND RESIDENTIAL AREA, ABE PARK UNDER AGE E/M NO-II OF GE(U-I) VISAKHAPATNAM

Amount

Excavation in trenches, not exc 1.5 m wide and not exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out all excavated material in soft / loose soil complete all as specified and directed.

Returning, filling in and including spreading, levelling, watering and well ramming in layers not exceeding 25 cm thick complete all as specified and as directed.

Removing of excavated surplus soil to a distance n. exc 50 m and depositing where directed at a level n. exc. 1.5 m above the starting point complete all as specified and directed.

M&L sand cushioning with clean and dry sand in trenches for protection of UG cable and including punning down complete all as specified and directed. Note:- Punned thickness of sand coushioning shall only measured and paid.

Supply & laying sub class 'B', class designation 75 bricks of old size, laid over sand cushioning along alignment of cable as protection to cable in trenches including taking out old bricks complete all as specified and directed. Note : Sand cushioning will measured and paid separately.

S&F for GI pipe 50 mm bore galvanised steel tubing, light grade with necessary fittings, laid under road crossing, for cable protection including taking down un-serviceable GI pipe complete all as specified and directed.

All as per Sl item No. 6.00 here in before but 80 mm bore

M&L for cutting the tarmac / hard standings in road and excavating trenches across the road in size not exceeding 0.45 m wide and 0.6 m depth for laying cable / cable protection pipe including refilling earth & making good top surface of the disturbed portion with 100mm thick PCC 1:3:6 (using 40mm graded stone aggregate) / bituminous mix as per existing & matching with the surroundings including removal of rabbish to distance not esceeding 100 m complete all as specified and directed.

M&L PCC 1:3:6 type C-2 (using 40 mm graded stone aggregate) as in foundation, filling and mass concrete including demolition of existing concrete complete all as specified and directed.

Supply & laying LT XLPE insulated, armoured heavy duty electric cable with alumimium conductor, 1100 volts grade, cross sectional area 25 Sqmm x 4 Core, laid in trenches / duct / on pole including taking down existing un-serviceable cable complete all as specified and directed.

All as per Sl. Item No. 10.00 here in before but for cable of size 35 sqmm x 3.5 Core

All as per Sl. Item No. 10.00 here in before but for cable of size 50 sqmm x 3.5 Core

All as per Sl. Item No. 10.00 here in before but for cable of size 70 sqmm x 3.5 Core

All as per Sl. Item No. 10.00 here in before but for cable of size 95 sqmm x 3.5 Core

All as per Sl. Item No. 10.00 here in before but for cable of size 120 sqmm x 3.5 Core

All as per Sl. Item No. 10.00 here in before but for cable of size 150 sqmm x 3.5 Core

All as per Sl. Item No. 10.00 here in before but for cable of size 185 sqmm x 3.5 Core

All as per Sl. Item No. 10.00 here in before but for cable of size 240 sqmm x 3.5 Core

All as per Sl. Item No. 10.00 here in before but for cable of size 300 sqmm x 3.5 Core

All as per Sl. Item No. 10.00 here in before but for cable of size 400 sqmm x 3.5 Core

M&L for removing electrical connections of 3 / 4 pole Air circuit breaker of capacity 800 to 1600 Amps, 415 V, 50 HZ of any make, strip opening of the ACB, inspecting the parts for serviceability / overhauling complete and carrying out following repairs / maintenance :- a) Cleaning insulation parts including bushings with CTC solution. b) Checking alignment and condition of movable and stationary contacts and adjust them all as per manufacturer's instructional manual. c) Checking the bolts, nuts, washers, cotter pins and all terminal connections are in place and tight, replacing worn-out parts. d) Checking arc chutes for damage and replacing damaged parts. e) Cleaning and lubricating the operating mechanism with light machine oil (SAE-20 or 30) for pins and bearings and with a non-hardening grease for wearing surfaces, adjusting breaker operating mechanism all as per manufacturer's instructional manual, replacing the same if there is excessive wear and tear. f) Checking / inspecting shunt trip coil for serviceability and replacing the same if required. g) Replacing worn or burned contacts, Checking control device free for operation. h) Checking after servicing the circuit breaker to verify the contacts move to the fully opened and fully closed positions, that there is an absence of friction and that the electrical operation is functional. Note : (i) The rate quoted deemed to be inclusive of T&P and minor spares like lubricants, nuts / bolts / washers / pins etc. (ii) Major spares like contacts, shunt trip coil, relays, CTs etc if replaced, shall be measured & paid separately.

S & F in repairs auxilary contact block of make as per OEM & suitable for air circuit breakers of capacity 800 to 1600 Amps all as specified and directed.

S & F in repairs motor of make as per OEM & suitable for air circuit breakers of capacity 800 to 1600 Amps all as specified and directed.

S & F in repairs Trip alarm contact of make as per OEM & suitable for air circuit breakers of capacity 800 to 1600 Amps all as specified and directed.

S&F in repairs Under Voltage releaseType MV, 415 V of make as per OEM and suitable for ACB of any capacity complete all as specified and directed.

S & F in repairs shunt release (110 / 220 V DC or 240 / 415 V AC) of make as per OEM & suitable for ACB of 800 to 1600 Amps capacity complete all as directed.

S&F in repairs insulation barrier of make as per OEM and suitable for ACB of any capacity complete all as specified and directed.

S&F in repairs Earth fault release Type EF 2 (30%, 40%, 50% In) of make as per OEM and suitable for ACB of any capacity complete all as specified and directed.

S&F in repairs racking interlock of make as per OEM and suitable for ACB of any capacity complete all as specified and directed.

S&F MCCB 3 pole 400 Amps, breaking capacity 36 kA, Ics = 100% Icu, thermal megnatic release type with adjustable overload setting (0.8-1.0 ln), adjustable short circuit setting (6-10 lr) including necessary modification in the panel & taking down existing MCCB complete all as specified and as directed.

All as per Sl Item No. 30.00 above but 3 pole 250 Amps breaking capacity 36 KA

All as per Sl Item No. 30.00 above but 3 pole 200 Amps breaking capacity 25 KA

All as per Sl Item No. 30.00 above but 3 pole 160 Amps breaking capacity 25 KA

All as per Sl Item No. 30.00 above but 3 pole 125 Amps breaking capacity 16 KA

All as per Sl Item No. 30.00 above but 3 pole 100 Amps breaking capacity 16 KA

All as per Sl Item No. 30.00 above but 4 pole 200 Amps breaking capacity 25 KA

All as per Sl Item No. 30.00 above but 4 pole 160 Amps breaking capacity 36 KA

S&F MCCB 4 pole 400 Amps, breaking capacity 36 kA, Ics = 100% Icu, microprocessor release type with adjustable overload setting (0.4-1.0 ln), adjustable short circuit setting (1.5-10 lr) including necessary modification in the panel & taking down existing MCCB complete all as specified and as directed.

All as per Sl Item No. 38.00 above but 4 pole 250 Amps breaking capacity 36 KA

All as per Sl Item No. 38.00 above but 4 pole 160 Amps breaking capacity 25 KA

S&F MCB SPN 40 to 100 Amp, 10 kA, 415V 'C' curve including taking down un-serviceable MCB complete all as specified and as directed.

M&L for detecting LT UG cable faults located in any stretch / depth with sophisticated cable fault locator consisting of microprocessor based pre-locator system, HV surge generator, fault pin point surge wave receiver, cable identification instrument, cable tracer for exact location of under ground cable routes complete all as directed. Note:- The rate quoted deemed to be inclusive of arrangement of necessary fault locator equipment, transportation of equipment& charges for service engineer.

M&L straight through cable joint kit, heat shrinkable type complete with jointing materials and accessories, suitable for 1.1 KV, 3.5 core XLPE aluminium conductor cable of size 25 to 50 Sqmm including taking down existing un-serviceable joint kit complete all as specified and directed.

All as per Sl Item No. 43.00 here in before but suitable for cable of size 3.5 core 95 to 120 Sqmm

All as per Sl Item No. 43.00 here in before but suitable for cable of size 3.5 core 150 to 185 Sqmm

All as per Sl Item No. 43.00 here in before but suitable for cable of size 3.5 core 240 to 300 Sqmm

M&L with replacement of canopy, door, body angle iron support etc. of existing LT panel board, body made out of 2 / 3.15 mm thick CRCA sheet and support of angle sections as per existing, duly power coated with one coat of synthetic enamel paint over a coat of primer with removable door hinges, neoprone gasket and locking arrangement, including welding work for fixing the door complete all as directed. Note:- Unit rate quoted shall be considered to include hinges, locking arrangement, neoprone gasket etc reqd for LT panel. Contactor shall quote their rates accordingly.

S&F in repair aluminium lugs to cable end suitable for cable of size of 10 to 50 sqmm complete all as specefied and directed.

All as per Sl item No. 48.00 here in before but suitable for cable of size of 70 to 120 sqmm

All as per Sl item No. 48.00 here in before but suitable for cable of size of 150 to 240 sqmm

All as per Sl item No. 48.00 here in before but suitable for cable of size of 300 to 400 sqmm

M&L earthing complete with galvanised steel earth plate electrode of size 60 cm x 60 cmx 6 mm thick buried directly in ground in vertical position (earth pit not less than 1.5 m deep below the normal ground level) with top edge of the earth plate not less than 1.5 m below normal ground level, connected to earth lead of galvanised iron strip 25 x 4 mm by means of bolts, nuts, check nuts and washers of galvanised iron or steel, all as shown in electrical plate No. 3 of SSR Part-I connected to earthing test point including dismantling existing old earthing complete all as specified and directed. Note:- The unit rate shall also include for earth work in any type of soil, PCC 1:2:4 type B1 chamber, RCC 1:1.5:3, type A1 cover slab, 50 mm thick reinforced with 8 mm dia TMT bar @ 140 mm C/C both ways, 10 mm dia plain bar lifting handle embedded in cover slab, Main earthing lead from earth electrode to test point upto 7.5 m length, 20 mm bore medium grade GI watering pipe, 40 mm bore GI light grade earth lead protection pipe, funnel, wire mesh, copper lugs, charcoal and common salt in alternate layer etc.

M&L for Maintenance and attending complaints / breakdowns at NAD Technical & NAD Residential area comprising of LT panels, over head lines / underground LT cables up to main distribution boards at buildings including day to day maintenance of LT panels / Perimeter lights for smooth & trouble free LT power supply including rectification of minor defects to electrical controls gear / accessories as directed by Engr-In -charge. Note : Unit rate quoted shall deemed to be inclusive of the following:- (a) Attending minor repairs / breakdowns without involving any new (major) materials. (b) Rate shall include cost to provide tools for attending break down and minor materials like lugs, PVC tapes, including issue / maintaining Job Cards and Complaint registers etc. (c) Major repairs / Break downs involving S&F of materials such as cables, Joints, MCCBs etc are outside the scope of this item and shall be measured and paid separately. (d) Contractor should ensure to carry out the work through qualified Technician / Electrician and assisted by the helper. Necessary tools & plants and transportation charges are deemed to be included in the unit rate quoted. (e) On completion of the task /attending break down, necessary Job card duly signed by the stake holder shall be submitted to Engr-in-Charge.

M&L in repair aluminium busbar of suitable size & capacity including taking down existing old unserviceable busbar all as specified and as directed

M&L in repair copper busbar of suitable size & capacity including taking down existing old unserviceable busbar all as specified and as directed

Clearing away all bushes, small plants, grass, vegetation, saplings, shrubs, brushwood, undergrowth, roots upto root level including surface dressing n.exc 15 cm deep around and surroundings areas of E/M installations (i.e.Two Pole / Four structures, outdoor-substation yards, pump house & Misc E/M installations etc) and removing rubbish / debris upto a distance of not less than 50 metres outside the periphery of the area under clearance complete all as directed.

M & L for excavating existing cable of size 70 to 300 Sqmm, 3.5/4 core & taking out from its loop of length 3 to 5m, cleaning, cutting of old termination at end and reconnecting the same along with termination at ends with new aluminium lugs of suitable size and refilling of cable trench with existing sand and bricks complete all as directed. Note: The rate quoted shall include for necessary earth work

SRI VINAYAKA INFRA (BID ID -3367873)

R AND A ASSOCIATES ENGINEERS CONTRACTORS (BID ID -3369881)

Bhuvaneswari Electrical Works (BID ID -3369756)

GVR ENGINEERING WORKS (BID ID -3363875)

MONITOR ENGINEERING WORKS (BID ID -3363318)

RK Associates (BID ID -3366773)

SONI ENGINEERS CONTRACTORS (BID ID -3370065)

KIRON ENGINEERING CORPORATION (BID ID -3370053)

ALPHA ENGINEERING CONSTRUCTIONS (BID ID -3370342)

P NARAYANA RAO (BID ID -3369615)

SVG SUPPLIES (BID ID -3370086)

RATNA ENTERPRISES (BID ID -3367953)