SPECIAL REPAIR REPLACMENT RENEWAL OF BER TRANSFORMER AND HT CABLE IN AGE EM EXT ELECT UNDER GE EM LUCKNOW

Amount

Supply, installation, testing and commissioning of energy efficient 4 star rating (Level-I) transformer suitable for 250 KVA step down floor mounted indoor type 11/0.433 KV, 3 phase, 50 Hz AC double wound core type copper wound, oil immersed, air naturally cooled with external cooling tubes, transformer delta connection on HV side and star connected on LV side in accordance with vector symbol Dyn-11 (vector group 4) with neutral brought out on LV side with earthing and having tapping on HV side for constant out put so as to alter/vary secondary voltage by + 7.5% in equal step of 2.5% changed by means of manualy operated "Off Load" taps changing gear. The voltage regulation shall be as per IS including first fill of transformer oil as per IS-335 and including all fittings/accessories as specified in SSR Part-I and IS-1180 Part-I of 2014 . The limit of temperature rise after continuous full load run as specified in IS-1180 Part-I of 2014 and BEE shall be suitably adjusted to suite the maximum ambient temperature of 55 degree centigrade as prevalent at Lucknow. The tramsformer shall be complete with the following fittings and accessories :-

(a) Oil conservator tank with fillings holes and cap filter type drain valve and oil level guage. (b) Silicagel breather with connecting pipe, first fill of dehydrating agent. (c) Explosion relief mounted on tank with double diaphram and equalizer pipe connected to conservatore air tank (pressure release valve). (d) Air release valve plug. (e) One cable box on LV side (Secondary) consisting of 04 Nos porcelain bushing with nuts, washers & bushing rods with 01 cable gland suitable for reception of taking out suitable size cable, including gland joints complete all as specified. (f) Explosive vent.

(g) 01 No 100 mm dial type thermometer vapour pressure type having range 0-120 degree centigrade with max temp indicator and resetting device incl, max reading pointer washer etc. (h) Thermometer pocket on tank cover (j) 04 Nos plain solid CI detachable rollers. (k) Two Nos earthing terminals marking plate. (l) Rating plate and terminal marking plate (m) Extra bushing for neutral outside the cable box brought on LV side. (n) First filling of oil conforming to IS and tested upto 60 KV dielectric strength.

(o) Lifting lugs (p) Oil drain valve with plug. (q) One cable box on HV side (Primary) consisting of 01 cable gland suitable for reception of taking in HT cable including gland joints complete all as specified. (r) Dehydrating breather with first filling of dehydrating agent. (s) Two earthing terminal on tank body to facilitate fixing of 32x6mm GI Strip. (t) Rating plate with terminal marking plate. (u) Inspection cover. (v) Extra bushing for neutral out side the LV side. (w) Hand hole of sufficient size to access interior of tank.

Note:- (i) Anything missed above but is required for efficient functioning of transformer is deemed to be included in the quoted rates. (ii) The contractor shall arrange factory visit for the rep of accepting officer for testing of transformer before despatch. (iii) Any other parts/items not specified above but have been considered essential for smooth and safe functioning shall be included in the items and are covered against the quoted rate.

All as per item No 1 above but 160 KVA

All as per item No 1 above but 100 KVA

Supply, laying, jointing, testing and commissioning HT under ground electric power cable crossed linked polyethylene (XLPE) insulated screened PVC bedded, galvanised steel strip or wire armoured electric power cable (heavy duty) with aluminium conductor 11000 volts grade suitable for earth system of 3 core 120 sqmm cross sectional area, ISI marked as per IS 7088 Part-2, laid in trenches/laid under floor/laid in ducts or fixed on poles etc complete all as specified and directed. Note- excavation/boring of road/pipe shall be measured and paid separately under appropriate items.

Supply and fixing cable jointing ki for 11 KV grade cable for indoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Al conductor cable (earth) of size 120 sqmm to 185 sqmm

Disconnecting and taking down of unserviceable HT cable from trenches with any damage footpat/road etc complete as directed.

M&L horizontal boring and inserting casing pipe with fittings with material HDPE of pressure rating 6 kg/cm² along road and under pavements/ hard standing/ railway/ road /canals /streams crossing in all types of soil at prescribed depth (in no case the depth of boring be less than 1.7 m from the road surface) up to 200 meters of drilling longitudinal or 3 to 4 roads crossing should be possible, for passing of HT cable of size 185 sqmm including all civil works & reinstatement as per BMP standards complete all as specified and directed. Note : if any damages to existing services such as OFC/gas pipe line/electric cable etc shall be repaired immediatelly by the contactor. Rate quoted above deemed to be included.

S&F cable route markers made out of PCC block (1:3:6) type C-1 using 20 mm graded stone aggregate size (bottom-400x100mm thick +top -300x100mm thick +height-1200mm) thick (60 cm burried in ground with ` DANGER/11 KV UG cable MES' embossed on route marker including excavation, earth works and painting the yellow colour above the ground and write the black colour complete all as specified and directed.

M&L for making earthing high conductive, non corosive maintenance free, non fluctuation of ohmic value 80 mmX3000mm (inner strip-3000x50x6mm, connection terminal 100x50x6mm, therminal hole 16mm, Inner filling CCM lectrode pipe-B class) GI pipe in pipe filled with super conductive crysteline with earth plus 50 kg (2x25 Kg bag) containing mixture of graphite,activated carbon,sulphat,silica,alumina iron oxide,titanium oxide,sodium oxide,zing oxide,etc) back fill compound should be ROHS including heavy duty polymer Earth pit chember with cover GI strip 32x6 mm which desire complete all accesories for design modification to achieve the earth terminal rod resistance value below 1 ohm complete all as specified and directed by Engineer-in-Charge.

Supply & fix earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or burried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing as required 32x6mm copper strip complete as specified and directed

Excavation in trenches not exceeding 1.5 wide and not exceeding 1.5 m in depth for laying of cables, pipes and getting out incl trimming the sides and forming bottom surfaces to required levels in soft/loose soil complete all as specified and directed and making good disturbed surfaces. Note- Punned down thickness will be measured for payment.

Returning,filling in, including spreading, levelling and well ramming in layers not exceeding 25 cm thick in soft/loose soil complete all as specified and directed.

Removing excavated material (soils) not exceeding 50 M and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified.

M&L for river sand washed and screened dry for cushioning to under ground cable in trenches below and around under ground cable incl spreading and levelling complete as specified and directed

M&L unreinforced pre cast concrete cable cover comply with IS 5820:1970 and shall be of grade not lower than M20 HVP type -I with peak size 300x180x40mm laid dry in trenches for the protection of underground cable complete all as specified and directed

Systemic Electric Pvt. Ltd.

Ajanta Associates

Diamond Electric Co.

M/S S.B. Singh and Sons

Unnati Engineers

M/S National Electrical and Electronics Services