Tender For Repair / Maintenance Of Lt Ug Cable, Lt Panels, Mccbs, Solar Lights And Connected At Af Stn Darbhanga Under Ge Af Bihta; 1 Excavation in trenches n. exc 1.5 m wide for foundations, laying cables/ pipes etc. not exceeding 1.5 m deep and getting out in SOFT/LOOSE soil complete, all as specified. 2 Returning filling in including spreading, levelling, watering and well ramming in layers notexceeding 25cm thick complete, all as specified. 3 Removal of excavated surplus spoil to a distance n. exc. 50m and depositing where directed at level not exceeding 1.5 m above the starting point complete all as specified. 4 Cutting the existing road straight by manual, depth and width not less than 1 metre below ground level for passing of underground cable and filling back with excavated soil upto 75% road portion and 25% shall be made with cement concrete 1:2:4 using 20mm graded aggregate stone complete all as specified. 5 NOTES APPLICABLE TO SERIAL ITEM 1 TO 4: (a) Excavation work shall be carried out manually only.(b) LT/HT cable, /telephone lines, if any, get damaged during excavation & earthwork, demolition of PCC shall be repaired by the contractor immediately as per existing specifications to the entire satisfaction of Engineer-in-Charge. 6 Brick protection with pulverized fuel ash lime brickslaid flat across the route of underground cable all as specified. 7 Clean dry sand ( locally available) as cushioning for under ground cable 230 mm thick (one layer of 80 mm thickness before laying the cable and other layer of 150 mm thickness after laying the cable) complete all as specified.NOTE:- Punned down thickness (over all 180 mm) shall be considered for measurement and payment. 8 GI pipe light grade with all fittings fixed as termination postal ,fixed to poles/ walls/ under floors/ under road etc complete all as specified of following size: - 9 40 mm bore 10 50 mm bore 11 Supply, laying, jointing & testing of LT XLPE insulated cable screened,bedded, galvanised steel strip or wire armourd cable(heavy duty) 1100 volt gradewith aluminium conductor conforming to IS-7098 (Part-I -1988)laid in trenches/ ducts/ through pipes/ in floors / underroads/ hard standing /along poles and testing including takind down existing cablecomplete all as specified of sectional area: - 12 6 Sq.mm,2 core 13 10 Sq.mm,2 core 14 16 Sq.mm,4core 15 35 Sq.mm,3.5 core 16 50 Sq.mm,3.5 core 17 70 Sq.mm,3.5 core 18 95 Sq.mm,3.5 core 19 PVC insulated unsheathed / sheathed cable with standard aluminium conductor 1100 Volts grade flat twin core service cable of size 2.5 sqmm confirming to IS:694/1990 with latest amendement ISI including disconnecting / taking out existing unsv/damaged old service cable completed all as specified and directed. 20 MCCBwith adjustable thermal magnetic release, ICS=ICU=100%, 4 Pole, 415 volts, AC, with over load and short circuit protection, 400Amp, rupturing capacity 36 kA.and rupturing capacity , IN REPLACEMENT complete all as specified.Make : L&K/ Legrand/ABB 21 Cutting and trimming trees branch any girth and any size touching to overhead lines and cleaning the distance 2.0 mtrs length both sids of OH line with a span of 50 mtrs (approx) each disposing the same clearing the site upto the satisfaction level and all as directed by Engr-in-charge.Note : All tools, plants and machinary equipment and manning required are quoted in the rates. 22 Hot press moulded SMC junction box / Terminal Box insulated and made out of environment friendly, recyclable, UV resistant , halogen & silicon free, polycarbonate with glass fiber reinforced of intenal size300 x 200 x 1055 mmhaving protection IP-66/67 including MCB single pole6-32 amp and all fixing acessories as required IN REPLACEMENT complete. MAKE: Hensel/ RITTAL or equivalent make mentioned in Appendix B. 23 All in 1 Solar LED street light27.5 watt,with high lumen output minimum 140 lumen/watt compl with solar plate of LifiePO4 batteryoutdoor type , IP 66 protection, IN REPLACEMENT, and making connections, complete. 24 Garden bollard light 12Watt of height 1.5/2.0 feet for outdoor garden waterproof (cool white ) , IP 65/66 protection alongwith unbreakable garden lamps for Outdoor, Rustproof with protection , with impact and corrosion resistant having base plate for connection to PCC 1:2:4 foundation complete with drive and lamps complete all as specfied.Note : The cost of PCC foundation , Coping , etc shall be included in the Quoted rate. 25 LED Driver for street/ flood light 100 watt operates efficiently with a wide input rangr of 100-300V AC and frequency of 50-60 Hz ensuring adapatability to various electrical environments with over and under Voltage protection (OVP) , surge protection, IN REPLACEMENT ,complete all as specified and directed. 26 LT panel board shall be factory (CPRI approved) fabricated,suitable for 415 volt, 3 phase, 4 wire 50 Hz AC supply, cubical type, dust & vermin proof (Kiosk type), made out of CRCA sheet 3.15 mm thick except inner sheath. Frame and legs shall be made of 50 x 50 x 5 mm size angle.Vertical height of legs shall be not less than 45 cm from top of PCC floor finish. Legs shall be grouted in PCC (1:3:6) type C-2 (using 40 mm graded stone aggregate). The dimensions/size of the LT Panel shall be as on required basis for incorporating the electrical accessories/ components as specified below and these particular specifications. The front and back side of the LT Panel shall be provided with hinged double doors with locking arrangement. The locks shall be built in flush type of superior quality as directed by Engineer in Charge. The hinged shall be of such construction that the door can swung open by not less than 150 degree.The fixing of the doors shall be such that the doors should automatically come to closed position if not kept open with effort. The panel shall be designed in such a way so as to have independent compartments/cabins for housing MCCB’s, cable gallery, bus bar chamber, switch and other accessories. Bus bar, MCCB, cable incoming, cable outgoing, time switch chambers will be manufactured of not less from 2mm thick MS Sheet. Panel shall be painted with anti corrosive coating and finally epoxy polyester powder coating of flint grey shade (RAL-7032) all s specified in relevant IS. including installation, commissioning & testing, comprising the following components/acessories:-INCOMMING:-a)Copper stri busbar of current carrying 800 Amps wrapped with PVC sleeves with maintained the colour code and provision of making holes with copper nuts, bolts & washers for cable connections including hydrographic insulators with nuts & bolts at both ends = 4 Nos. 27 (b) MCCB IP 44 and IP 66/67 protection, 4 pole , 415 volts, Lcu =50KA breaking capacity, rating 630 Amps adjustable thermal magnetic type, thermal release range (64 to 100% ) with O/L , S/C protection including all fixing accessories with both ends spreader links-02 Nos (Make : Legrand / Schneider / L&T)(c) LED Neon indicator lamp (RYB) with holder, 230/250 volts, AC-01 set (set of three ) Make : AE/L&T(d) Digital Ammeterof range (0-400)Amps, flush mounting type of size 100 mm x 100 mm (4x4) square dial with CTs of ratio 630/5 and selector switch -01 set (Make : Legrand / Schneider / L&T).(e) Digital voltmeter of range (0-500)Volts , flush mounting type of size 100 mm x 100 mm (4x4) square dial with selector switch -01 set (Make : Legrand / Schneider / L&T).(f) On-load Change over switch, TPN version 415 v, 4 Pole, 400Amps-01 Nos (Make : Legrand / Schneider / L&T). OUTGOING :-(a) MCCB IP 44 and IP 66/67 protection, 4 pole , 415 volts, Lcu =36KA breaking capacity, rating 250 Amps-01 Nos 200 Amps-01 , 100 Amps -02 Nos,adjustable thermal magnetic type, with O/L , S/C protection including all fixing accessories with both ends spreader links-02 Nos (Make : Legrand / Schneider / L&T)(b) Spare Pockets for MCCB -01 No. 28 Notes:Amount ofcredit for retrieved materials is mentionedintender documents in pdf form which will be deducted while acceptance of tender offline.
