Repair and maintenance of electrical breakdown incl fault detection localisation and rectification in HT LT underground network and OH conductor at 4 No P F Station Road Maude Road Church Road Cassel Road Manekshaw Enclave Manekshaw Centre Mall Road

Amount

Testing the cables with high voltage DC testing machine and locating the fault in the cables by fault locating machine to pin point exact position of fault, disconnecting faulty 33 KV HT cables of different sizes from both ends, removal of Fault, Re-connections and testing of cables after removal of fault complete all as specified and directed. Note: (a) 33 KV HT cable & joints shall be measured and paid for seperately under respective items of schedule. (b) Retrieved old serviceable cable cover will be laid in trenches for cable protection. If extra PCC cover and sand required at site shall be measured and paid separately under respective items of BOQs. (c) Excavation and earth work will be measured and paid for seperately under respective items of schedule.

Supplying, laying, jointing testing and connecting in replacement , XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable (heavy duty) with multistranded aluminum conductors, 33 KV (E) grade, of size 400 Sq mm, 3 core, laid in trenches complete all as specified & directed. Note for item No 2 & 3:- Excavation, earth work ,cable protection , sand fillings , cable joint shall be measured and paid separately.

All as per item Ser No 3 above but size of cable 300 Sqmm , 3 core

Supply and fix Cable jointing kit for 33 KV (Earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of following size :-

400 sqmm 3 core.

300 sqmm 3 core.

Supply and fix Cable jointing kit for 33 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of following size :-

400 sqmm 3 core.

300 sqmm 3 core.

Material and labour for emergency maintenance work of 33 KV overhead line during breakdown by deploying skilled labourer and electricians at faulty site having Gang of minimum 6 persons and transportation including hydraulic machine and other tools and plant required at site for fault rectification. Note:- Contractor or his rep shall come to the site of breakdown within one hour of notification of breakdown . In case the rep or contractor shall not come to the site of breakdown and start attending breakdown within 1.00 hour a penalty of Rs 1000 per fault per hour will be imposed over contractor and will be deduct from his dues.

All as per Item No 6 here-in -before above but Gang of minimum 3 persons except hydraulic machine.

Supplying and Fixing in replacement, PG clamps aluminium cast alloy suitable for existing ACSR conductor of type Zebra/Dog/Goat/Panther/Wolf for 33 KV yard /33 KV towers with GI nuts, bolts etc complete all as specified and directed.

S&F in replacement Isolators clamps aluminium cast alloy for both terminals suitable for ACSR conductor of type Zebra/Dog/Goat/Panther/Wolf for 33 KV yard with GI nuts bolts complete all as specified and directed

Supplying and Fixing in replacement, T -connector/ clamps, aluminium cast alloy suitable for existing ACSR conductor of type Zebra/Dog/Goat/Panther/Wolf for 33 KV yard with GI nuts bolts complete all as specified and directed.

S&F in replacement CT clamps aluminium cast alloy for both terminals suitable for ACSR conductor of type Zebra/Dog/Goat/Panther/Wolf for 33 KV yard with GI nuts bolts complete all as specified and directed

S&F in replacement PT clamps aluminium cast alloy for both terminals suitable for ACSR conductor of type Zebra/Dog/Goat/Panther/Wolf for 33 KV yard with GI nuts bolts complete all as specified and directed

S&F in replacement dead end clamps aluminium cast alloy for both terminals suitable for ACSR conductor of type Zebra/Dog/Goat/Panther/Wolf of 33 KV yard /33 KV towers with GI nuts bolts complete all as specified and directed

S&F in replacement 33 circuit breaker clamp aluminium cast alloy for both terminals suitable for ACSR conductor of type Zebra/Dog/Goat/Panther/Wolf for 33 KV yard with GI nuts bolts complete all as specified and directed

Supplying and Fixing in replacement, Post insulator with hardware fittings, 33 KV Grade, for isolator complete all as specified and directed.

Supplying and fixing in replacement, Disc insulators with hardware fittings, 33 KV Grade for 33 KV yard complete all as specified and directed.

S&F in replacement of pin insulator with hardware fittings 33 KV grade complete all as specified and directed

M&L for replacement of aluminium jumper made of ACSR conductor of type Zebra/Dog/Goat/Panther/Wolf conductor of 33 KV towers/33 KV yard

Material and labour for removing of grass/vegtation bushes from inside of 33 KV towers and upto a distance of 1.5 meter outside the tower complete all as specified as directed .

M&L in replacement of damage single/double /triple tension disc insulators and hardware fitting and fixing in position including tighetning of bolts & nuts, complete after dismentling and lowering of damage conductor/disc insulator by taking tension of conductor on a separate arrangement including opening & provinding of jumpers of 33 KV tension towers .

M&L in replacement of damage single/ double /triple disc suspension disc insulator by re-arranging with good/new disc insulators after taking the load of conductor on alternate arrangement including proper clamping etc. as per site requirement of 33 KV tower

M&L for stretching/tightning of loose ACSR conductor including fixing of conductor accessories such as clamp etc as per site condition of Zebra/Dog/Goat/Panther/Wolf conductor of 33 KV lines Note : Length of indl conductor shall be measured.

M & L Jointing of ACSR conductor of any type with mid span joint through compression joint machine of 33 KV lines

Trimming and cutting of tree branches(not more than 25mm girth) coming across 33 KV HT over head line clearing the line around 2m single/both sides and and disposal of branches from site exeeding 50m and not exceeding 250m from site complete all as directed by Engr-in-Charge. Note : - (i) Length of span is approx 200 to 225 RM. (ii) Due care is to be given while trimming/cutting the tree branches that there should no damage to over head line conductor/pole. In case due to any negligence, damage is caused to be make good/renewal by the contractor from his own resources and nothing extra is admissible. (iii) All Safety to labourer must be adhered by the contractor during trimming and cutting of tree branches.

Supplying and fixing , Stretching, Securing, Connecting & testing of Aluminium Conductor Steel Reinforced (ACSR) of size Zebra/Dog/Goat/Panther/Wolf for 33 KV lines/33 KV yard complete incluiding taking out old unserviceable conductor complete all as directed.

Excavation in trenches not exc. 1.5 m wide and not exc 1.5 mtr deep in soft/loose soil for laying / taking up/ taking down of cables and getting out and levelling of bottom suface to required level all as specified and directed by Engineer- in- Charge.

Returning filling in,. Including spreading, levelling,. Watering and well ramming soil in layers not exceeding 25 cm thick all as specified and directed.

Removing excavated material (ie soil) from site to a distance n. exc 50 mtrs away and depositing where directed at a level n. exc. 1.5 mtr above the starting point all as specified and directed by Engineer-in-Charge.

Material and labour for river washed and screened, dry sand for filling in trenches below and around underground cables for cushioning of cables etc, complete all as specified. Note : Measurement shall be taken after punning down.

S&F sub class B bricks having minimum compressive strength 75 Kg/ Sqcm laid in trenches for cable protection etc complete all as directed by Engineer-in-Charge.

All as per srl item No 30 here-in-before but using old bricks obtained under srl item No 26 here in before.

Supplying and laying un-reinforced precast concrete cable cover, class HV, type 1, flat size 300mmx 180mm x 40mm.

All as per srl item No 32 here-in-before but using old un-reinforced precast concrete cable cove obtained under srl item No 26 here in before.

Supplying & Laying reinforced precast concrete cable cover, class EHV, type 1 with peak, size 450mm x 230mm x 50mm in trenches for protecting under ground cable as per IS (for 33 KV Cable) complete all as specified and directed.

All as per srl item No 34 here-in-before but using old reinforced precast concrete cable cove obtained under srl item No 26 here in before.

Supply, laying, jointing, testing and commissioning in replacment LT underground cables 1100 volts grade, PVC insulated XLPE and PVC sheathed, heavy duty armoured, with multistranded aluminium conductors, IS-1554 marked, laid in trenches complete all as specified and directed. Cables of the following sizes:- Note Excavation, earth work ,cable protection , sand fillings , cable joint shall be measured and paid separately.

16 Sqmm 4 core

25 Sqmm 4 core

35 Sq mm 3.5 core.

50 Sq mm 3.5 core.

70 Sqmm 3.5 core

95 Sqmm 3.5 core

120 Sqmm 3.5 core

185 Sqmm 3.5 core

240 Sqmm 3.5 core

300 Sqmm 3.5 core

630 Sqmm Single core

400 Sqmm single core

Supplying, laying, jointing testing and connecting in replacement XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable (heavy duty) with multistranded aluminum conductors, 11 KV grade, IS 7098 marked, suitable for HT 11 KV(E) system, laid in trenches fixed to pole, including jointing & testing complete all as specified and directed of following sizes Note :- Excavation, earth work ,cable protection , sand fillings , cable joint shall be measured and paid separately.

95 sqmm 3 core.

120 sqmm 3 core.

185 sqmm 3 core

240 sqmm 3 core

300 sqmm 3 core

Supplying, laying, jointing testing and connecting in replacement HT cable, 11000 volts (E) grade, with Aluminum conductor of size 1000 Sqmm, single core, XLPE insulated, PVC sheathed, screened, Armoured with GI strip(Earthed), screened by a layer of extruded semi conducting cross linkable compound, copper tape, cross laid up with prefiller complete all as specified and directed.

Testing the cables with high voltage DC testing machine and locating the fault in the cables by fault locating machine to pin point exact position of fault, disconnecting faulty 11 KV HT cables of different sizes from both ends, removal of Fault, Re-connections and testing of cables after removal of fault complete all as specified and directed. Note: (a) 11 KV HT cable & joints shall be measured and paid for seperately under respective items of schedule. (b) Retrieved old serviceable cable cover/bricks will be laid in trenches for cable protection. If extra PCC cover/bricks and sand required at site shall be measured and paid separately under respective items of BOQs. (c) Excavation and earth work will be measured and paid for seperately under respective items of schedule.

All as per item Ser No 39 above but 1100 Volt LT cables

Taking out faulty underground 1100 Volt LT cable of different sizes by excavation and removing bricks of any size and relaying in the same trenches or re routing after rectification of fault or replacing faulty portion of cable with new cable and removing of surplus soil and using new bricks as required. Note: (a) 1100 Volt LT cable & joints shall be measured and paid for seperately under respective items of schedule. (b) Retrieved old serviceable bricks will be laid in trenches for cable protection. If extra bricks and sand required at site shall be measured and paid separately under respective items of BOQs. (c) Excavation and earth work will be measured and paid for seperately under respective items of schedule.

Material and labour disconnecting faulty /burnt end or portion of cable by removing the cable from loop including necessary excavation & earth work , suitable size of thimble LT tap , relaying and reconnecting the cable by removing faulty/burnt portion of cable and preparing fresh terminals for 25 Sqmm 3.5/4 core to 240 Sqmm 3.5 core of LT cable to LT Panel/pole/main switch complete all as directed.

Supply, fixing and testing straight through joint heat shrinkable type with jointing kit suitable for cable PVC/XLPE insulated armoured heavy duty aluminium conductor 1100 Volts grade complete all as directed for the following sizes :-

16-50 Sqmm x 3.5 core/ 4 core

70-120 Sqmm x 3.5 core

185 -240 Sqmm x 3.5 core

Supply and fix Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of following size :-

95 Sqmm 3 core.

120 Sqmm to 185 Sqmm, 3 core.

240 Sqmm to 300 Sqmm 3 core

Supply and fix Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of following size :-

95 Sqmm 3 core.

120 Sqmm to 185 Sqmm, 3 core.

240 Sqmm to 300 Sqmm, 3 core.

Supply and fix Cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of following size :-

95 Sqmm 3 core.

120 Sqmm to 185 Sqmm, 3 core.

240 Sqmm to 300 Sqmm 3 core

Supply and fix Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 1 core XLPE armoured aluminium conductor cable 1000 Sqmm

Supply and fix Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 1 core XLPE armoured aluminium conductor cable 1000 Sqmm

Supply and fix in replacement air break switch gang operated tripple pole mechanically operated mechanism, switch air break gang operated mounted on 15 Nos insulator and steel frame with operating rod of 25 mm bore GI Pipe and locking arrangements worked from ground level for current rating 400 Amps, HT 11 KV grade including drop out fuses and necessary silver coper coating jumpers and making all electrical connections complete.

Earthing complete with galvanized steel earth plate electrode of size 60cmx60cmx6 mm thick, buried directly in ground (earth pit not less than 2.10 m below normal ground level) with top edge of earth plate not less than 1.5m below normal ground level, connected to galvanized iron strip 32 x 6mm by means of bolts, nuts, check nuts and washers 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 nuts and washers of galvanised ironside 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 medium grade etc. (b) The quoted rates shall also deemed to include the cost of earth test point and earth strip/GI lead wire and protection pipe upto 7.5 meter beyond the earth plates electrode.

S&F in renewal on load change over switch open execution of capacity 400 Amps , 4 pole , 415 volt , 50 Hz fixed in any type of existing LT panel/Feeder piller including taking out old existing unserviceable change over from panels etc complete all as directed

S&F in replacement ACB 4 pole, 2500 Amp, 50 KA, 415 Volt AC Horizontal draw out type , front operated with Micro processor based protection release for adjustable over current, short circuit and earth fault protection

Supply installation & commissioning in replacement of 24V/40A Float Cum Boost Battery Charger unit including battery bank comprising 02 Nos of 12 Volts-100 AH sealed maintenance free battery. The CCCV battery charger consisting of copper wound, air cooled transformer, 01 Set single phase full wave bridge rectifier consisting of diodes and SCRs, liberally rated mounted on heat sink and complete with resistor/condenser network for surge supperssion . During auto float mode automatic changeover shall take place from float mode to boost mode and vice versa, 01 Set of solid state constant potential controller to stabilize the DC output voltage of the float cum boost charger, 01 No electronic controller , DC digital ammeter , DC digital voltmeter, Potentiometer , DC, MCB for reverse battery protection . The charger should have alarm annunciation with visual and audible alarm with manual reset facility for fuse fail alarm. Float cum boost battery charger and DC distribution board shall be housed in powder coated sheet steel cubicle with panels of 1.6mm thickness , louvers for ventilation , gland plate will be provided for cable entry from bottom . The battery charger shall be divided into two compartments. The upper compartment shall house the battery charger & DCDB with all necessary controls. The lower compartment shall be suitable for housing the batteries. Tech specification shall be as under:-

(a) Input working voltage-180 -270 Volts (b) Nominal Input Voltage - 230 V , AC , 50 Hz,1 (c) On load input power factor - > 0.8 (d) On load unit watt efficiencies-> 80% (e) No load losses of complete charge-< 10% (f) Ripple contents on the load (RMS)= 1% to 5% (g) Over load - 110% for 30 minutes and will give visual indication for over load condition. (h) Boost charging - 2.4 V/Cell . (j) Float charging -2.15 V/Cell (k) Float cum boost charging-Automatically changes from one state to another state as per battery condition and will give the visual indication for either float or boost based on charging mode. (l) Reverse polarity -No damage will caused . A visual indication for reverse polarity will appear with an audio alarm. (m) Short circuit-MCB protecton provided. Make of battery charger. Statcon/Sinetrac/Amar Raja Make of batteries. Exide/Amaron/Okaya

Note : contractor should procure and provide 50 % of the material as listed above within 15 days of the placing of work order and shall be verified by the Eng-in-charge

M/s JAIMAA ASSOCIATES

Buddham Builders

Vijay Electricals

Rajindera Enterprises

DS CONSTRUCTION