REPAIR AND MAINTENANCE TO INTERNAL WIRING, FLAME PROOF WIRING, EARTHING , LA AND OTHER MISC EXTERNAL SERVICES OF WSA BLDGS AND MISC BLDGS AT TECH AREA AT AIR FORCE STATION KALAIKUNDA UNDER GE (AF) KALAIKUNDA.

Amount

Taking down carefully copper/ aluminium point wiring (light, fan, socket or power or any type of wiring ) complete including fittings such as switches, ceiling roses, pendent, regulators, sockets, light fittings etc, removing materials from site and making good disturbed surfaces of walls, floors etc., complete all as specified and directed.

M & L for flameproof point wiring, surface wiring with necessary fixing arrangements with stranded PVC-FRLSH insulated and unsheathed copper stranded conductor of size 1.5 Sqmm, 1100 volts grade drawn in and including 16 gauge stove enameled ERW rigid steel conduit (metallic) not less than 19 mm dia with all MS conduit including all fittings accessories /fittings such as junction boxes, bends, tee, elbow etc including PVC-FRLSH insulated and unsheathed copper stranded conductor of size 1.5 Sqmm, 1100 volts grade for continuous earthing all as specified and directed by Engineer-in-Charge for one light, fan point controlled by one switch Note : Junction boxes shall be measured separately

All as per Item No. 2 here-in-before but with FRLSH grade, (ISI mark) PVC insulated and unsheathed two run multistranded copper conductor of size 1.5 Sqmm for one power point of 3 pin 5 Amps on independent board including FRLS grade (ISI mark), PVC insulated, unsheathed one run multi-stranded copper conductor of size 1.5 sqmm green in colour as earth continuity conductor connected to common earth dolly complete all as specified and directed.

All as per Item No. 2 here-in-before but with FRLS grade, (ISI mark) PVC insulated and unsheathed two run multistranded copper conductor of size 2.5 Sqmm for one power point of 15 Amps on independent board including FRLS grade (ISI mark), PVC insulated, unsheathed one run multi-stranded copper conductor of size 2.5 sqmm green in colour as earth continuity conductor connected to common earth dolly complete all as specified and directed.

All as per Item No. 2 here-in-before but with FRLSH grade, (ISI mark) PVC insulated and unsheathed two run multistranded copper conductor of size 4.0 Sqmm for one power point of 15 Amps on independent board including FRLS grade (ISI mark), PVC insulated, unsheathed one run multi-stranded copper conductor of size 4.0 sqmm green in colour as earth continuity conductor connected to common earth dolly complete all as specified and directed.

S&F Flame proof weather proof rotary switch with cable termination box in LM 6 aluminium alloy housing single Pole 16 Amp, 240 volts complete as specified and directed by Engr-in- charge :Make : Make : Sudhir / Shyam Switchgears Pvt ltd or Equivalent make as catered in PS

S&F Flame proof weather proof rotary switch with cable termination box in LM 6 aluminium alloy housing Double Pole 25 Amp, 240 volts complete as specified and directed by Engr-in- charge :Make : Sudhir / Shyam Switchgears Pvt ltd or equivalent make as catered in PS

S&F Flame proof - weather proof switch socket & plug combined 25 A, 250 V(2P+Earth) with cable termination in LM 6 aluminium alloy housing with plug complete all as directed by Engineer-in-Charge . Make : Sudhir / Shyam Switchgears Pvt ltd or equivalent make as catered in PS

S&F Flame proof - weather proof switch socket & plug combined 40 A, 500 V(4P+Earth) with cable termination in LM 6 aluminium alloy housing with plug complete all as directed by Engineer-in-Charge .Make : Sudhir / Shyam Switchgears Pvt ltd or equivalent make as catered in PS

S&F flame proof weather proof metallic hose conduit 3/4 " dia , M20 /3/4" conduit MxM / FM x M / Fx F 3/4 " dia 300 mm long incl all as specified and directed by Engr- in - charge. Make : Sudhir / Shyam Switchgears Pvt ltd or equivalent make as catered in PS

S&F flame proof weather proof metallic hose conduit 3/4 " dia , M20 /3/4" conduit MxM / FM x M / Fx F 3/4 " dia 500 mm long incl all as specified and directed by Engr- in - charge .Make : Sudhir / Shyam Switchgears Pvt ltd or equivalent make as catered in PS

S&F Flame proof weather proof multiple entry junction box in LM6 , threaded type, up to 1" ET/M 25, 4 Way complete as specified and directed by Engr-in- charge : Make : Sudhir / Shyam Switchgears Pvt ltd or equivalent make as catered in PS

S&F CIMFR certified LED flame proof batten suitable for twin T8 tube of 20 Watt , IP 65 protected , tube with single end connection type with LED tube light 20 W, 240 Volt, PF> 0.90 , colour Temp 6500K, System Luminous efficacy> 100Lm/W, Recommended for Gas / Vapour group of IIA & IIB and Zone 1&2, complete including connecting with PVC insulated multi stranded copper flexible cable 0.5 sqmm three core, Make: Crompton FIAMMA II, Cat Part No. EXTN2LT8-16/20 or equivalent in Sudhir / Shyam Switchgears Pvt ltd or equivalent make as catered in PS

S&F CIMFR certified LED flame proof bay light, 60 watt, Wellglass in die cast AI housing with heat resistant toughened glass, ip 65 protected. 240 Volt, PF> 0.90 , System Luminous efficacy> 100Lm/W, Recommended for Gas / Vapour group of IIA & IIB and Zone 1&2 complete including connecting with PVC insulated multi stranded copper flexible cable 0.5 sqmm three core, Make: Crompton GLAZE PRO Cat Part No. FWL1315-60-CDL or equivalent in Sudhir / Shyam Switchgears Pvt ltd

S&F LED 200 Watts flood light fittings with thermal management, made with pressure die cast aluminium housing with toughened glass and high power LED with secondary lenses, IP 66 protection, having efficacy not less than 110 Lumen per watt, including 10 KV SPD and making all electrical connection from light fitting to pole junction box/ O/H line and source of power supply for making the light functional by providing PVC sheathed copper counductor cable of 1.0 Sqmm x 3 core ISI marked, testing complete all as specified and as directed by Engineer-in-Charge. (Make:- Crompton Cat No. No. Pluto Neo , Cat No.LFLN - 200 - CDL / 60 - M or equivalent make as catered in PS

S&F rigid stove enameled steel conduit ISI marked of size not less than 20 mm dia position inclusive all fitting such as tee, bends, reducer, elbow, bell mouth, tube ends and all fixing accessories such as couplers lock, nuts, sadles, pipe hooks etc fixed properly on as in concealed position incl cutting chasing & making good to disturbed surfaces & matching with the existing colour ans specification of wall/floor etc incl taking down old rusted MS conduit all as directed by Engineer-in-Charge

M&L Sub main wiring with two single core PVC-FRLSH insulated unsheathed stranded copper conductor cable of size 4 sqmm drawn in and including rigid stove enameled steel conduit ISI marked of size not less than 25 mm dia inclusive all fitting such as tee, bends, reducer, elbow, bell mouth, tube ends and all fixing accessories such as couplers lock, nuts, sadles, pipe hooks etc fixed properly with 4.0 Sqmm PVC-FRLSH insulated unsheathed stranded copper conductor as a continuous earth wire complete all as specified incl. taking down old unserviceable sub main wiring complete Note : (i) Two single core cable + one run of earth copper conductor and steel conduit will be measured and paid as one unit length

M&L Sub main wiring (Three phase+ Neutral) with 4 x single core PVC-FRLSH insulated unsheathed stranded copper conductor cable of size with 6 Sqmm , 1100 volt grade cable and 2 x 6 Sqmm PVC insulated, unsheathed, copper conductor, stranded 1100 volt grade cable as continuous earth lead drawn in and including rigid stove enameled steel conduit ISI marked of size not less than 32 mm dia inclusive all fitting such as tee, bends, reducer, elbow, bell mouth, tube ends and all fixing accessories such as couplers lock, nuts, sadles, pipe hooks etc fixed properly with 4.0 Sqmm PVC-FRLSH insulated unsheathed stranded copper conductor as a continuous earth wire complete all as specified incl. taking down old unserviceable sub main wiring complete Note : (i) 4 x 6.0 Sqmm single core cable + 2 x 6.0 Sqmm earth copper conductor and steel conduit will be measured and paid as one unit length

S&F Flame proof weather proof Distribution board , TPN, 04 Way, 415 Volt, prewired, including MCB`s with following specifications complete all as specified and directed. Make of Flame Proof DB : Sudhir / Shyam Switchgears Pvt ltd or equivalent make (a) Incomming: MCB, TPN, 63 Amp, 10kA, "C" Curve - 01 No. (b) Out going : (i) MCB, TPN, 40 Amp, 10kA, "C" Curve - 01 No, (ii) MCB SP 6-32 Amp, 10kA, "C" Curve - 06 Nos.

Excavation in trenches in any type of soil not exceeding 1.5 mtr wide and n.exe 1.5 mtr depth including getting out all as specified and directed. Note : Manual excavation shall be done. During excavation if any damage occured to existing cable any type/ water pipe line, it will be contractor responsibilty to get it repair and make functional by providing jointing kit etc without any extra cost. Contractor has to repair it within 24 hrs so that essential service can not be effected due to such damage.If contractor fails to repair it within 24 hrs penalty @ Rs 500/- per hour beyond this period will be charged to contractor. In this GE decision will be final, conclusive and binding.

Returning filling in including spreading, leveling ,and well ramming, in layers not exceeding 25 cm each layer of any kind of soil all as specified and directed.

Removing surplus excavated material from site not exceeding 50 mtrs from starting point and depositing where directed at level not exceeding 1.5 mtr above the starting point all as specified and directed.

Supply & spreading in trenches dry river sand cushioning to underground cable in trenches including spreading, levelling hand punning down complete all as specified and directed Note:- Depth of sand cushioning will be measured after punning down and levelling the sand properly.

M & L for laying of bricks locally available sub class 'B' bricks (old size) for cable protection cover laid flat and dry in trenches over the cable perpendicular to the direction of cable all as directed.

Disconnecting and Taking out unserviceable, U/G cables, 1100 Volts grade from trenches/ducts/ poles etc of any size complete all as directed.

Supply, laying, jointing, testing and commissioning cross-linked polyethylene (XLPE) insulated cable for working voltages of 1100 V, PVC sheathed, armoured, 2 core with reduced neutral conductors (2 core), nominal cross sectional area of main conductor 10 sqmm, stranded aluminium conductor, ISI marked as per IS 7098(Part-I): 1988 including cable glands, lugs etc. to suit the cable size and to be laid in trenches, fixed along pole, under floors, through GI pipe laid under floors/roads, through concealed GI pipe along wall etc. complete all as specified and as directed.

Supply, laying, jointing, testing and commissioning cross-linked polyethylene (XLPE) insulated cable for working voltages of 1100 V, PVC sheathed, armoured, 4 core with reduced neutral conductors (4 core), nominal cross sectional area of main conductor 16 sqmm, stranded aluminium conductor, ISI marked as per IS 7098(Part-I): 1988 including cable glands, lugs etc. to suit the cable size and to be laid in trenches, fixed along pole, under floors, through GI pipe laid under floors/roads, through concealed GI pipe along wall etc. complete all as specified and as directed.

All as per item No 26 here-in-before but of size 25 Sqmm 4 core complete all as specified and as directed.

S&F for thermoplastic (polycarbonate) junction box for test point without terminal block of dimension 130x180x77 mm IP 66 halogen free and weather proof including four hexagonal anticorrosive screws for out door installation all as specified and as directed. Make : Hensel- Cat Part No. KF 1000H or equivalent in Sintex / C&S.

M&L in repair for Test point terminal block made of gun metal or phosphorus bronze size 75 x 75 x 25 mm drilled and screwed incl 3 Nos 8mm dia 25mm long hexagonal head screws for fixing strips to test point including necessary fixing arrangement to fix test point terminal block in junction box all as specified and directed

S&F in repairs PVC insulated, Single core flexible copper conductor cable, 1100 Volt, Conf to IS 694, ISI marked of size 70 Sqmm including fixing it on LA installed on bldg at height upto 10 meter by providing GI strip clamp and also by using Heavy duty PVC tye from LA at top of tower to earthing pit on ground, and any other locations like on wall or laying on floor by providing saddles, including connecting terminals by providing copper lugs, brass nut and bolt with washer of suitable size as per site requirement to connect the cable including taking down unserviceable complete all as specified and directed by Engineer in Charge.

Taking down old unserviceable GI/Copper earth plate from soft and hard soil from any location as directed by Engineer -in- charge.

M&L earthing complete with copper earth plate electrode 600 mm x 600 mm x 3.15 mm thick burried directly in ground (Earth pit not less than 4 mtr deep below ground level) with top edge of the plate not less than 3.25 mtr below ground level connected to copper strip 20 x 3 mm as earth lead by brass nut bolts washer including brazing the copper strip with copper plate as shown in electrical plate No 3 connected to earth test point including necessary excavation in hard dense soil / disintergate rock, filling charcoal and salt around the plate in layers , filling the pit with agriculture soil free from stones, to be bring from out side defence land and mixed with Bentonide (3 bags of 25 Kg each ), construction of inspection pit of brick work of size 600 x 600 x 600 mm with PCC copping of 1 :2: 4 , 12.5 mm aggregate A1 with MS sheet 3 mm plate cover on frame of angle iron of size 40 x 40 x 5 mm with , wire mess, funnel, test point, 40 mm dia GI protection pipe light grade and 32 mm GI peforated pipe for watering etc complete and testing on completion. The electrode and lead shall be of copper all as specified and directed by Engr-in-charge (Copper strip upto 7.5 RM will be included in the item rate and copper strip beyond 7.5 RM will be measured seperately (Note :1. The unit rate includes for protection GI pipe and watering pipe of 40 mm bore including excavation for earth pit in any type of soil/ disintegrate rock. 2. Contractor has to bring agriculture soil from outside of defence land and fill in earth pit mixed with Bentonide (Minimum 3 bags of 25 Kg each or more if required ) to achieve desired result i.e less than one ohm as the soil resistiviy is very high are deemed to be included in the unit rate.. 3.The cost of Copper strip of size 20X3 mm from top of earth plate upto 7.5 meter above ground level is deemed to be included in the unit rate of above item.and copper strip beyond 7.5 RM will be measured seperately. 4. All the joints in copper strip and connection with Earth Plate to be welded through brazing and in addition by proving brass nut bolt and washer are deemed to be included in the unit rate. 5. Cost of brazing/ welding and brass nut bolts and washer are deemed to be included in the unit rate.6. Cost includes disposal of excavated soil from site and clear the site before completion of work at that location

Taking out old unserviceable GI/aluminium/copper earth strip or for relaying/ refixing the same existing strip by providing procline insulators of any size and type in any height and any location as directed by Engineer In charge.

Supply and fixing copper strip of size 20 x 3 mm as earth continuity conductor or main earthing lead fixed on "V" type porcelain insulator ( ceramic bus bar support insulator off white colour of suitable for mounting strip of 20 mm wide x 3 min thick) saddle to wall, buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required 20 x 3 mm copper strip brazing to each joints and connected with by providing brass nut bolts and washer all as specified and directed by Engr in Charge.

M & L for Refixing of existing serviceable copper / aluminium / GI strip taken out under item No. 34 above, on top of "V" type procelain insulator ( ceramic bus bar support insulator off white colour of suitable size for mounting of insulator) fixing strip on insulator with brass nuts and bolt ,screws, aluminium cleats etc.( Procelain insulator if replaced shall be measured separetly) duly straightened properly and fixing in neat dressed manner as directed by Engineer in charge. Note: (i) Proclelain insulator to be measured and paid seperately under relevant item

M& L for porcelin insulater 10 BM heavy duty (ceramic bus bar support insulator off white colour of min size of 50 mm width x 70 mm length with 50 mm width bus bar mounting base for fixing strip of width above 32 mm to 50 mm fixing on wall for supporting the copper strip including suitable size brass nuts and bolts, washers, drilling hole on wall to fix porcelain insulator , fixing insulator by providing steel screws etc complete all as specified and directed by Engineer-in-charge.( Note : Cost of brass nut bolt and washer deemed to be included in unit rate of item).

M& L for porcelin insulater 4 BM heavy duty (ceramic bus bar support insulator off white colour of min size of 36 mm width x 60 mm length with 36 mm width bus bar mounting base for fixing strip of width up to 32 mm fixing on wall for supporting the copper strip of size 20 x 3 mm and up to 32 mm width including suitable size brass nuts and bolts, washers, drilling hole on wall to fix porcelain insulator , fixing insulator by providing steel screws etc complete all as specified and directed by Engineer-in-charge. ( Note : Cost of brass nut bolt and washer deemed to be included in unit rate of item).

M&L for in repair carrying out brazing to earthing strip joint between earthpit and test point after removing the nut bolt ,scraping the strip,preparing the surface all as specified by Engr-in-charge

S&F for thermoplastic(polycarbonate) junction box for test point without terminal block of dimension 130 x 180 x 77 mm IP 66 halogen free and weather proof including four hexagonal anticorrosive screws for out door installation including taking down unserviceable one. Make : Hensel- Cat part No. KF 0600 H or equivalent in Sintex / C&S.

Supply & Fixing hexagonal head brass nut bolt and washer (Bolt size not less than 30 mm long from under side of head to end and not less than 6 mm dia) as specified and directed by Engr-in -charge.

Supply & Fixing hexagonal head brass nut bolt and washer (Bolt size not less than 50 mm long from under side of head to end and not less than 7 mm dia) as specified and directed by Engr-in -charge.

Taking down old broken and damaged earth pit chamber and M & L for construction of new earth pit chamber with brick work of size 600 x 600 x 600 mm with PCC copping of 1 :2: 4 , 12.5 mm aggregate A1 with MS sheet 3 mm plate cover on frame of angle iron of size 40 x 40 x 5 mm including GI funnel and wire mesh , and synthetic enamel paint 2 coat as per colour code over a coat a red oxide primer complete all as specified and directed by Engineer-in-charge.

M & L for fabrication of display board for earth pit nos, lacation and periodical test results for power circuit earthing, machinary earthing ,lightening conductor earthing, made of MS sheet 3.0 mm thick sheet, rectangular welding on angle iron of 20 x 20 x 4 mm of length 550 mm and fixed at height from ground level 30 cm including fixing in PCC 1:2:4 with 20 cm X 20 cm X 20 cm (below ground level) grade aggregate foundation to be carried out at different location technical area/domestic area . Dimention of board shall be 30 cm X 25 cm. or any other dimention not more than 0.075 sq mtr of MS Board The instruction shall be written black painted board in white letters not less than 2 " size for all type of boards complete all as specified and dierected by the Engineer -in-charge including taking down unsv one. Note : (a) All necessary MS sheet, aluminium screws and PCC works 1:2:4 type Bo etc are deemed to the rate quoted by the contractor (b) The fabrication of condents on the screen printing should be collected before printing the board from Engineer-in-charge.

M & L GI tubing medium grade 40 mm bore as in supports to air termination rods embedded in PCC bed blocks all as directed. Note:- PCC bed blocks shall be measured and paid saperately under relevant item of this schedule.

M & L for cement concrete in foundation, filling and mass concrete in M7.5(Nominal Mix) using 40 mm nominal size graded crushed stone aggregate including demolition of existing one complete all as specified and as directed.

M & L for cement concrete M15 (Nominal Mix) using 20 mm nominal size graded crushed stone aggregate in lintels upto 1.5 m clear span, cills, steps; seismic and other similar bands, plinth courses, string courses, lacing courses, parapets and railings upto 60 cm in height, copings, kneelers, apex stones, bed plates, kerbs, water troughs, slab staging for water tanks, filling of pressed steel door frame, fixing of hold fasts and the like including weathering, slightly rounded or chamfered angles and throating including necessary formworks and including demolition of existing one all as specified and directed by Engineer- in-charge.

S & F Brass Copper lightening arrester 9.2 mm diameter and 915 mm in length with 5 spikes and base plate 8.5 x 8.5 cm for building protection coverage of 45 degress from the top point 1.85 m all as specified and directed by Engineer in Charge.

Supply and fixing stainless steel wire rope of minimum thickness 6 mm for holding GI pipe of 50/ 40 mm dia to stand straight vertical mounted with lightening arrester spike complete all specified and directed by Engineer -in-charge

Supply and fixing stainless steel wire rope clamp grip for rope clamping 'U' with nut bolts washer etc all as specified and directed by Engineer -in-charge

Supply & laying of UPVC pipe of size 25 mm dia for incorporating of earthing copper strips complete all as specified and directed by Engineer -in-charge

Supply only non iodized common salt commercial in pack of 1.00 kg each to pure with water for earthing.

Horizontal boring of holes, under road/ pavement / hard standing etc.,not exceeding 15 Metres in length, in any type of soil, suitable for passing through 40 to 50 mm bore, galvanised steel tubing,complete all as specified and directed.

Material and labour for 40 mm dia galvanized iron tube Medium grade for cable protection, supporting to poles, plinth protections, road crossing, trenches, footpath etc, including including all fitting clamps, nut, bolt and washers complete all as specified and directed.

Material and labour for 50 mm dia galvanized iron tube Medium grade for cable protection, supporting to poles, plinth protections, road crossing, trenches, footpath etc, including including all fitting clamps, nut, bolt and washers complete all as specified and directed.

S & F LED bulkhead light with pressure die-cast housing light fittings nominal power 12 watt LED of Make Osram; Everlight; Philips; Nicha; Cree; Samsung, LED wattage of minimum 1 watt each and Maximum 3 watt each, operational voltage of 170 volts to 270 volts. frequency of 50 Hz, lumen output of minimum 1100, lumen , , integrated electronic driver (SMP based constant current supply) with output short circuit protection and surge protection upto 3 KV, protection grade IP 65, CRI greater than 80%, ITHD below or less than 15%, CW available CCT of 6500K, power factor of minimum 0.95 polycarbonate housing with aluminium, life span of minimum 50000 working hours as per catalogue No. CENTURY - HWAR012C OR equivalent of CG/Philip/Wipro complete all as specified and as directed.

Supply and fixing sheet metal encloser out door type cubical enclouser made up of CRCA sheet of 3.15 mm, with top canopy, Factory fabricated, of size 1000 mm x 1000 mm x 300 mm, Powder coated, wall mounted , front openable type, double door leafs, with locking arrangement, 19 mm fancy lock, and pad lock, louvers on both side walls for ventilation, with hanging arrangement to fixed on wall for installation of Flame Proof 3 Phase 4 WAY DB inside it, including, provn of GI earth strip in enclosure to grounding the enclosure and DB installed in enclosure and Danger notice plate with bone and skull mark to be revited on door including suitable aluminium earth strips conforming to IS with danger notice plate , necessary cable glands fashners and nut bolt to grout on wall for fixing enclosure complete all as specified and directed by Engineer in Charge .Note : Contractor has to submit the drawing of cubical enclosure and get the sanction of GE before placeing order for fabrication.

M&L for earthing complete with galvanised steel earth plate electrode size 600 x 600 x 6 mm thick, burried directly in ground, (Earth pit not less than 3.25 m deep below ground level) with top edge of the plate not less than 2.5 m below ground level connected to galvanised iron strip 32 x 6 mm as earthin lead wire by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No 3 connected to earthing test point all as specified or indicated including testing on completion, surrounded from all sides by mixture of charcoal and common salt and electrode by means of steel and GI pipe light grade 20mm dia bore for watering funnel with wire mesh. CI cover with frame, PCC chamber pit with PCC 1:3:6 type C-2 excavation and earth work all as shown in electrical plate No 3 connected to earthing test point all as specified NOTES 1. The unit rate includes for protection pipe and GI strip dia from top of earth plate upto 7.5 meter above ground level. NOTE:- 1. The unit rate includes for protection GI pipe of 40 mm and watering pipe of 20 mm bore including excavation for earth pit in any type of soil/ disintegrate rock. 2. Contractor has to bring agriculture soil from outside of defence land and fill in earth pit to achieve desired result as the soil resistiviy is very high. 3.The cost of GI strip of size 32 X 6 mm from top of earth plate upto 7.5 meter above ground level is deemed to be included in the unit rate of above item.and copper strip beyond 7.5 RM will be measured seperately. 4. All the joints in GI strip and connection with Earth Plate to be welded and in addition by providing double brass nut bolt and washer. 5. Cost of welding and nut bolts are deemed to be included in the unit rate.

Supply and replace 32 mm x 6 mm GI strip as in earth continuity conductor fixed to wall or pole or recess or cheses or burried in ground or drawn in conduit pipe or any other indicated situation for loop earthing etc as required all as directed

M/S ELECTROVISION

NATIONAL CONSTRUCTION CO

BUILDCON