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| 1 | Supply, laying, jointing, testing and commissioning in replacement of LT underground cables 1100 volts grade, PVC insulated XLPE and PVC sheathed, heavyduty armoured, with multistranded aluminium conductors, IS-1554 marked, laid in trenches complete all as specified and directed by Engr-in-Charge. Cables of size 95 Sqmm 3.5 core.Note Excavation, earth work ,cable protection , sand fillings , cable joint shall be measured and paid separately. |
| 2 | Boring of hole under road/pavement/hard standing or any other situation by manual means and suitable for passing of GI pipe50to 100 mm bore and making good both ends complete all as specified and directed by Engr-in-Charge. |
| 3 | Boring of hole under road/pavement/hard standing or any other situation by trenches Technology using ultra sounding Technique and necessary machine including HDPE pipe of 160mm dia suitable for 0.6 MPA working pressure complete all as specified and directed by Engr-in-Charge.NOTES :- (i) The contractor will be responsible for taking permission from appropriate authority i.e. NHAI/IGL/ if needed units, needed for above said work.(ii) Trenchless depth shall not be less than 2 mtr from ground level until or otherwise required due to site requirement and contractor has to maintain the trenchless depth upto 4 mtrs from ground levelallquoted rates shall deemed to be included to maintain the trench less depth as directed during excavation to avoid damages to the existing services. (iii) The quoted rate shall deemed to be included for repairs/rectification for damaged done to the existing/ communication and water supply system /sewage system during excavation of work. |
| 4 | Supply & Fixing for GI Tubes,of size 50 mm dia light grade, galvanised, with all fitting , laid in trenchesfor protection of cable in road /drain crossing complete all as specified and directed by Engr-in-Charge. |
| 5 | Material and Labour for Earthing completewith 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 2.5mbelow normal ground level, connected to galvanized iron strip 25 X 4 mm by means of electric arc welding of galvanised iron or steel as shown in electricalplate 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 specified and directed by Engr-in-Charge.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. |
| 6 | Excavation in trenchesnot exceeding 1.5m wide & not exceeding 1.5m in depth and n.exc10 sqm on plan for foundations , laying of LT under ground cables/ GI pipes and steel tubular poles etc. and getting out as in soft / loose soil complete all as specified and directed by Engr-in-Charge. |
| 7 | Returning, filling in, including spreading, leveling, watering and well ramming in layers not exc. 25 cm deep as in soil complete all as specified and directed by Engr-in-Charge. |
| 8 | Removal of excavated material n.exc 50 mtr and depositing where directed at a level n.exc 1.5 mtr above in starting point complete all as specified and directed by Engr-in-Charge. |
| 9 | Supply and Fixing common burnt bricks as mechanical protection of this cables using old size sub class ‘B’ bricks laid dry flat over the cable width equal to the length complete all as specified and directed by Engr-in-Charge. |
| 10 | Sand filling in trenches for cushioning of UG cables as layers of 8 cm before laying and 15 cmafter laying of cables complete all as specified and directed by Engr-in-Charge. |
| 11 | Supply and fixing submain wiring alongwith earth wire with the following sizes of FR PVC insulated copper conductor, single core cable in surface/wall/recessed as required of 2 x 4.0 sqmm + 1 x 4.00Sqmm complete all as specified and directed by Engr-in-Charge. |
| 12 | Supply and fixing rigid non-metallic PVC conduit inclusive of all tees, bends, elbows, seducers, bell mouth tube ends and fixing accessories such as couplers, saddles, lock nuts, hooks etc of size 20 mm dia complete all as specified and directed by Engr-in-Charge. |
| 13 | Supply and fixing single Pole and neutral enclosure with a two pin and earth plug and socket complete with one single pole MCB 32 Amp, 240 V complete all as specified and directed by Engr-in-Charge. |
| 14 | Supply, installing, testing and commissioning factory made LT ( 415 Volts, 50 Hz , 3-phase, 4 wire supply ) CPRI approved, factory assembled LT Panel Outdoor type, platform mounted, suitable for 415 Volts 3 Phase and neutral, 4 wire, 50Hz AC supply system having bus bar chamber with insulated Aluminium bus bars of 200 Amps rating installed on DMC insulators with bus bar chamber. The panel shall be dust and vermin proof, ingress protection class ( IP-54 ) and made of 3.15 mm thick CRCA mild steel sheet and mild steel, Angle iron frame work made out of 40 X 40 X 5 mm ), front and rear opening type with proper ferrule & cable gland, internal wiring with PVC insulated multistranded copper conductor FR wire of adequate size but not less than 1.5 sqmm complete. All steel metal works including frame shall be with anticorrosive coating with seven tank process and finally epoxy polyester powder coating of Siemens grey shade 7035. embedded in ground with and including bocks of PCC 1:2:4 type B1 of block size 30x30x30 cm comprising of the following:- |
| 15 | BUS BAR CHAMBER :- (a) 200 Amp 3 Strips & Neutral Strip 100 Amp, Aluminium conductor, with color coded heat shrinkable sleave and shall be mounted on non hygroscopic, non combustible, track resistant, high strength DMC material, interconnection of all incomings & outgoings.INSTRUMENT CHAMBER :- (a)Digital Volt Meter, 96X96mm, flush type rated 0-500 V, with Volt meter selector switch- 01 Set. (b) Digital Amp Meter, 96X96mm, flush type rated 0-200 A, with Amp meter Selector switch- 01 Set.(c) C.T\"s 200/5 A CL 1.0 Tape Wound- 01 Set. (Set of three)(d) Red, Yellow, Green Phase indicating Lights LED type 220 V AC- 1 Set. (Set of three).(e) Protection MCB 6 A SP C Series- 1 Set. (Set of three).Make of Metering Accesories :- L & T / AE/ Trinity / Schneider. INCOMING SUPPLY :-(i) MCCB 125 Amps 25 KA 4 Pole with Fixed thermal & magnetic release 415 volts , 50Hz,=01 No., OUTGOING SUPPLY :-(i) MCB SPN 32 Amps, 230 volts, 50Hz, rupturing capacity 10 KA C Curve = 12 Nos. |
| 16 | The panel manufacturer should have following Govt. Approved Certificates: 1. Panel should be according to IEC-61439. CPRI Certification Degree of Protection IP-54(IS/IEC : 61439 (Part-1), 2011& IS/IEC : 61439 (Part-2) 2011)2. Tempreature Rise (IS/IEC : 61439-1, 2011 & IS/IEC : 61439-2 2011)3. CPRI Short Circuit IEC-60439 withstand strenght should be 50kArms for 1.0 Sec with intial peak of 105kA4. CPRI Certification IEC-60439 Rated current for short circuit not less than 4000 A with rated insulation voltage 660V5. ISO 9001 CERTIFIED |
| 17 | Note : Contractor should procure and provide 50 % of the material as listed above within 15 days of the placing of work orderand shall be verified by the Engr-in-charge. |
