REPAIR/MAINTENANCE OF INTERNAL AND EXTERNAL EM SERVICES AT WSA-II III AT AF STN NAL

Amount

Taking down old unserviceable termination rod 12 mm dia for replacement.

S & F Air termination single pointed, copper rod 12mm dia and 300mm long fixed on GI pipe 40mm bore 1 mtr long with the help of nuts & bolts fixed on PCC block of suitable size complete all as specified and directed. Note : GI Pipe to be measured & paid separately under relevant of schedule.

Taking down old Copper / Aluminium strip of any sizes as down conductor/roof conductor carefully for re-use, shifting unserviceable conductor to store under sch of credit all as directed.

M&L for earth continuity conductor or main earthing lead for down conductor fixed to wall on porceline insulators/saddle or on button or recess or chases or burried in ground or drawn in conduit/ pipe or fixed to pole or any other etc as required size 20x 3 mm copper strip include screws, porceline insulators, nuts & bolts the strip in entire Building with complete all as specified and directed.

Re-fixing Copper / Aluminium strip of any sizes as down conductor/roof conductor after soldering between earth strip and refixing the copper / aluminium strip by providing new porciline insulator or burried in ground or drawn in conduit including PVC conduit, fixing arangements with wall/roof all , complete all as specified and as directed.

S & F Pre cast PCC blocks of size .3*.3*.3m of grade 1:2:4 type B1 ( 20mm graded crushed stone aggregate ) with fixing arrangement for air termination and placing on roof of buildings, blast pans , complete all as specified and as directed.

M&L for Earthing complete with copper plate electrode 600 mm x 600 mm x 3.15 mm thick buried directly in ground vertically in pit of depth not less than 2.25 metre below normal ground level with top edge of the earth plate at a depth not less than 1.5 metre below normal ground level surrounded from all sides with mixture of charcoal and common salt in alternate layers up to 90 cm and with tibba sand up to top level and electrode connected to copper strip 20x3 mm dia as earthing lead by means of GI bolts, nuts, check nuts and washers, earth strip protected by galvanized steel pipe 40 mm bore (light grade) connected to machinery/equipment all as shown in electrical plate No. 5 of SSR-2010 Part I and including necessary excavation and earth work in any type of soil, 20mm bore light grade GI pipe for watering, funnel, wire mesh, PCC (1:3:6) type C-1 chamber, PCC (1:2:4) type B-1 reinforced with 6 mm dia MS round bars @ 15 cm c/c both ways for cover 50 mm thick and MS frame of suitable size made of angle iron, including taking out existing earthing complete all as specified. Note :- (i) The unit rate includes earth lead and protection pipe up to maximum 7.5 metre from earth plate to earth point/test point. (ii) Earth pit shall be constructed minimum 0.5 metre away from earth.

Taking down U/S existing sub main wiring copper/ aluminium conductor including PVC or steel conduit/ casing and capping etc.

Supply an fixing sub-main wiring, with five single core 10.00 sq mm FRLSH, PVC insulated, unsheathed, stranded, copper conductor cable drawn through conduit including providing 32 mm of steel metallic conduit and fixed on wall including accessories and connecting to earth dolly complete, Note : 5 Run of 10.00 Sqmm, 1 Run of steel conduit shall be measured as one unit for measurement purpose.

Supply an fixing sub-main wiring, with five single core 6.00 sq mm FRLSH, PVC insulated, unsheathed, stranded, copper conductor cable drawn through conduit including providing 25mm of steel metallic conduit and fixed on wall including accessories and connecting to earth dolly complete, Note : 5 Run of 6.00 Sqmm, 1 Run of steel conduit shall be measured as one unit for measurement purpose.

Supply an fixing sub-main wiring, with three single core 4.00 sq mm FRLSH, PVC insulated, unsheathed, stranded, copper conductor cable drawn through conduit including providing 20mm of steel metallic conduit and fixed on wall including accessories and connecting to earth dolly complete, Note : 3 Run of 4.00 Sqmm, 1 Run of steel conduit shall be measured as one unit for measurement purpose.

Supply an fixing sub-main wiring, with three single core 2.50 sq mm FRLSH, PVC insulated, unsheathed, stranded, copper conductor cable drawn through conduit including providing 20mm of steel metallic conduit and fixed on wall including accessories and connecting to earth dolly complete, Note : 3 Run of 2.50 Sqmm, 1 Run of steel conduit shall be measured as one unit for measurement purpose.

Supply and fixed-in-repair, Flame proof - weather proof, MCB socket & plug with 16 AMP rotary switch combined 16 A, 500 V(2P+Earth), complete all as specified and as directed.

Supply and fixed-in-repair, Flame proof, Sheet metal enclsoure,SPN 8 way for fixing MCBs 240 volt including providing MCB DP 32 A- 1.00 number as incomer & MCBs SP 6 to 16 Amps-6.00 Nos as outgoing, as specified and as directed.

Supply and fixed-in-repair, Flame proof, Sheet metal enclosure SPN 4 way for fixing MCBs 240 volt including providing MCB DP 20 A- 1 Number as incomer & MCBs SP 6 to 16 Amps-2 Numbers as outgoing, as specified and as directed.

Supply and fixed-in-repair, Flame proof, Sheet metal enclosure TPN 4 way for fixing MCBs 240 volt including providing MCB TPN 63 A- 1.00 Number as incomer & MCBs SP 6 to 16 Amps-12.00 Numbers as outgoing with as specified .

Supply and fixed-in-repair, flame proof Switch, rotary type with termination box in LM6, 16A, single pole 250V, complete all as specified and as directed.

Supply & Fixing 3way flame proof junction box suitable for carrying 4/6 sqmm 3 phae/single phase sub main wiring all as specified and directed by Engr-In-Charge.

Supply & Fixing 4way flame proof junction box suitable for carrying 4/6 sqmm 3 phase/single phase sub main wiring all as specified and directed by Engr-In-Charge.

Supply & fixing in repair, flame proof LED light 1x20 watt tube light fixture luminaire including integral reflector made of diecast aluminium alloy LM6 , with electronic ballast, bipin holders, .connector block, etc., and all accessories pre-wired and including connecting up with suitable size copper conductor twin core cable, complete all as specified and directed.

S&F as in repairs LED street light 45 watt 230 volts, efficacy >= 110 LPW, pressure die cast aluminium housing, heat resistant toughened glass with frame, IP protection IP-65 batter optics for uniform distribution having surge protection 10 KV, sealed driver taking out existing unsv light with complete all as specified and directed .

Taking out LT cable XLPE/PVC sheathed 1100 volts grade armoured with aluminium conductor carefully of any size from trenches, poles, under floor etc for further use/disposal all as specified and directed.

Supply, laying and testing cable XLPE Insulated , screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 185 sq mm 3.5 core, complete all as specified and as directed.

All as per srl item No 24 here in before size of XLPE cable 35 Sqmm, 3.5 Core

All as per srl item No 24 here in before size of XLPE cable 16 Sqmm, 4 Core

All as per srl item No 24 here in before size of XLPE cable 10 Sqmm, 4 Core

All as per srl item No 24 here in before size of XLPE cable 10 Sqmm, 2 Core

Excavation in trenches, not exceeding 1.5 m wide and n. exc 1.5 m in depth for laying of cable for soft/ loose soil and getting out all as specified.

Returning, filling in including spreading, levelling, watering and well ramming in layers n. exc 25 cm apart for soft/loose soil all as specified.

Removing of excavated surplus soil to a distance n. exc 50 m and depositing where directed at a level.

M & L for dry river tiba Sand cushioning in trenches for protection of cable including watering and consolidation all as specified and directed. Note: Punned thickness shall be measured for payment.

M&L for cover to underground cable with one layer of bricks using sub class B bricks (old size) laid flat across the cable complete all as specified and directed.

Material and labour for making cross hole suitable for 40 mm dia bore pipe( light grade) including passing GI pipe of size 40 mm dia (light grade), below the road with the help of pressure pipe/ boring tools for passing the cable and removing of surplus soil to a distance not exceeding 100 mtr from work site all as directed. Note :- The GI Pipe 40mm light grade shall be measured and paid separately.

Supply, laying/erecting in repair of 40 mm bore GI tubing (light grade) with new fittings, laying in floor/trenches for support UG cables/Air termination rod/ earthing strips with complete all as directed by Engr-in-Charge.

S&F in repair for kiosk box of minimum size 300x200x100 mm for luminaries control swithes, weather proof made out of PVC/HDPE fire retardant, non fusing, shock & rust proof, single piece moulded/SMC housing and SMC cover with hinged door, pole mounting type comprising of aluminium busbar TPN of 60 Amps with 6 Amps MCB, SP with base channel , fixed on pole with MS, clamps 30x5 mm with nuts, washer for Street light), complete all as specified and as directed.

Taking down old UNSV two core cable and supply & fix twin core sheathed copper conductor 1.5Sqmm FRLHS from DBs to street light include making hole to neary by on pole include flexible steel conduit on open portion and passing from one hole to other for making connection to street light, complete all as specified and directed by Engineer in charge.

Supply and fixing as in repairs LT Panel Outdoor type floor mounted free standing dust and vermin proof panel / DB, CPRI approved, with IP-65 protection, frame fabricated out of 40mm x 40mm x 4mm angle iron, 3.15 mm thick CRCA sheet for entire outer panel with single door and locking arrangements & 1.6 mm for inner compartment with 40mmx4mm flat Iron, including Separate cubicle chamber with cable alley not less than 300mm width for installation/connecting switchgears with the main bus bar using copper conductor flexible wires suitable for switch rating and connecting outgoing terminals of the switchgear with terminal blocks of appropriate current rating using flexible copper wires duly terminated by cable lugs and thimbles, MS surfaces epoxy based powder coated, shade as approved over 2 coats of red oxide primer, surfaces pre-treated in seven tank process for de-greasing, de-rusting & Phosphate, panel having front and rear opening and provision for installation of separate cable alleys, busbar chamber and switchgear compartments, Provision in cable alleys for bottom cable entry for incoming & outgoing cables, affixing MV danger plate at suitable intervals / locations including erection, testing and commissioning complete all as specified and directed including fixtures amd fitments mentioned below :-

Supply only following fixtures / fittings for replacement in LT Panel boards:-

MCCB, 36 KA, 4 pole, 400A

MCCB, 36 KA, 4 pole, 200A

MCCB, 36 KA, 4 pole, 160A

MCCB, 16 KA, 3 pole, 100A

M&L as in repairs chemical earthing complete with copper earth plate electrode 900 mm x 600 mm x 5 mm thick buried directly in ground vertically in a pit of depth not less than 3.65 metre below normal ground level with top edge of the earth plate at a depth not less than 2.90 metre below normal ground level, earth plate connected to copper strip 32 x 6 mm as earthing lead by means of running gas welding / brazing for a length of 45cm, copper strip protected by galvanized steel pipe 50 mm bore medium grade upto ground level and there after by 50 mm dia HDPE pipe upto test point (maximum upto 7.5metre from earth plate), earth plate surrounded by charcoal or coke and common salt upto 90 cm in alternate layers of 15cm each, thereover a layer of 60cm tibba sand duly compacted, thereafter 30 layer of magnesium sulphate powder (compacted thickness) and finally filing the top of pit upto ground level with tibba sand, to achieve earth resistance value less than 1 Ohm including provision of 20mm bore galvanised steel pipe 20mm bore light grade with funnel & wire mesh for watering, earth pit chamber built in cement concrete 1:3:6 type C-1 using 20mm graded stone aggregate covered with 50mm thick pre-cast cover slab of RCC 1:2:4 type B-1 duly reinforced with 8mm dia MS TMT bars @ 15cm c/c both ways, with suitable handle made of 10mm dia MS round bar, including excavation & earthwork in any type of soil / strata, removal of surplus soil to a distance not exceeding 50 metre as shown in Electrical Plate No. 3 of MES Schedule Part-I including taking out existing unsv copper earthing complete all as specified and directed.

Supply, laying in repair high density polyethylene pipe dia 40mm (HDPE) of pressure rating 6 kgf/cm2 laid in trenches or wall or surface for protection of earthing GI/CU strip with complete all as specified and directed

Earthing complete with galvanized steel earth plate electrode of size 60cmx60cmx6 mm thick, buried directly in ground (earth pit not less than 3.5 m below normal ground level) with top edge of earth plate not less than 2.5m below normal ground level, connected to galvanized iron strip 32mm X6 mm by means of electric arc welding of galvanised iron or steel as shown in electrical plate No 3 of SSR Part I, connected to earth test point and the equipment on the other side complete all as specified, including testing and commissioning complete all as directed. Note : (a) The unit rates quoted against this item shall be deemed to include the cost of excavation and earth work in any type of soil, common salt & charcoal dust in alternate layers, PCC 1:3:6 as in pit, precast RCC 1:2:4 type B-1 with necessary reinforcement as in cover & frame for pit, funnel, watering pipe 20 mm bore GI pipe light grade, protection pipe 40 mm bore GI pipe light grade etc. (b) The quoted rates shall also deemed to include the cost of earth test point and earth strip/GI earthing and protection pipe upto 7.5 meter beyond the earth plates electrode.

M&L Dismantling blades, and taking out burnt stator assy of flame proof/ weather proof exhaust fan 300/350mm sweep and taking down old burnt copper stator winding, cleaning stator slots, rewinding of stator assy with appropriate gauge of super enamelled copper winding wire, insulating material complete and assembling flame proof exhaust fan with flame proof cover and testing for proper function including provision of split pin of suitable sizes and complete all as specified and directed. Note: (i) Cost of taking down of fan and re-fixing shall be included in the unit quoted rate (ii) The quoted rate for rewinding shall also include the rates of ball bearing/Bush bearing and capacitor of suitable size. (iii) painting and writing MES no also to be included in the quoted rate (iv) Contractor should be site visit before tender quoting.

M&L for earthing complete with GI earth plate electrode 600 mm x 600 mm x 6 mm thick, burried directly and preferably vertically in ground, earth pit not less than 2.25 Mtr deep below ground level with top edge of the plate not less than 1.50 Mtr below ground level. The earth plate to be connected with earth lead of 4 mm dia galvanised iron or steel wire all as shown in para no 4 the earthing test point all as specified and directd.The GI earthing strip to be protected by galvanised iron pipe 15mm bore (medium grade) up to up to test point. Earthing shall be include with providing funnel with 20mm bore galvanised iron pipe (light grade), wire mesh, charcoal or coke and common salt in alternate layer of 15cm (compacted thickness) up to 90 cm all around earth plate further filled with 60 cm thick Tibba sand and 2nd layer with 30 cm of Magnesium sulphate powder (compact thickness ) , 3rd layer with tibba sand up to the ground level. Earthing shall also be include for providing concrete earth pit in PCC (1:3:6) type C-1 (with 20mm graded aggregate), 50mm thick precast RCC (1:2:4) cover slab (re-inforced with 8mm dia TMT bar @ 15 cm C/C bothways and suitable handle made of 10mm dia) including necessary earth work including taking out old unsv earthing from existing location with complete all as specified and directed.

Supply and laying in repair Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in GI pipe conduit 15 dia (light grade)es or any other indicated situation for loop earthing etc. as required 4mm dia galvanised iron or steel wire with complete all as specified and directed. Note :The cost of GI Pipe 15mm dia (light grade ) included in this quoted rate.

M & L for prepration of old painted steel tubular pole 9 metre height by scraping with steel wire brush and cleaning the rust of pole and cross arm and applying two coats of Aluminium paint over and including a coat of red oxide primer at 1.5 m height above PCC coping and painting red and white strips ( 30 cm width ) with synthetic enamel paint upto 1.5 m height above PCC coping, and writing the exhisting pole number with black paint in yellow circle of dia 150 mm , complete all as specified and as directed .

Supplying and fixing-in-repairs, LED flood light 150 W, efficacy >= 110 LPW, fitted with lense, high luminous ,protected to IP 65, toughened glass efficient high out put emitter LED for better distribution having surge protection 10 KV, sealed driver applicable for area lighting including electrical connection.

RAJENDER ENTERPRISES (BID ID -3412978)

Aman Enterprises (BID ID -3411938)

AYUSH BUILDERS (BID ID -3412108)

ANANT ENTERPRISES (BID ID -3413230)

M/S SHREE SHYAM TRADERS (BID ID -3413306)

SHREE GURU NANAK CONSTRUCTION COMPANY (BID ID -3411865)

B K CONTRACTORS (BID ID -3412854)

J.D INFRA ENGINEERING (BID ID -3412524)