CWE(U)/D-14/2021-22

Amount

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.

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 complete all as specified and directed.

Material and labour for river washed and screened, dry sand for filling in trenches below and around underground cables, filling in existing Cable duct in side the sub station situated at differnt location for cushioning of cables and Sand filling under floors or in foundations of transformers including watering and consolidation etc, complete all as specified and directed.

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

Taking down old serviceable un-reinforced precast concrete cable protection cover obtained during the excavation from the trenches and re-fixing the same in trenches for cable protection complete all as specified and directed.

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 / ducts / encased in GI pipe / fixed to pole, including jointing & testing complete all as specified and directed of following sizes :-

95 sqmm 3 core.

120 sqmm 3 core.

185 sqmm 3 core

240 sqmm 3 core Note for item no 7.01 to 7.04 :- The Old Unserviceable existing cable will be the property of department and the contractor will be the responsible to deposit the same at MES Yard.

Boring of hole under road, pavement, hard standing by trenchless technology using ultra sound technique and any other necessary machine including material and labour for HDPE pipe of 160 mm dia suitable for 0.6 mpa working pressure.During boring work,hard rock may appear as the site is a hilly terrain any damage to the trenchless machine or any other machine will be in the scope of contractor. The contractor should take the permission from the NHAI, GAIL , BSES , MTNL , Army and other concern authority for boring is mandatory prior to initiation of workcomplete all as specified and directed. Note:- If any of the services get damage during trenchless work the cost of repairing/replacement of the same is deemed to be included in the quoted rate by the contractor.

Boring of hole under road/pavement/hard standing or any other situation by manual means, suitable for passing of GI pipe 100 to 150 mm bore, depth of boring should not less than 0.90mtr and making good both ends complete all as specified and directed.

S&F in replacement GI Pipe (light grade) with necessary accessories/ fittings for cable protections/pole for crossing of culverts/nallah of following bore sizes complete all as specified and directed.

150mm bore.

100 mm bore.

Supply and fixing 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 complete all as specified and directed:-

95 Sqmm to 120 Sqmm , 3 core.

150 Sqmm to 185 Sqmm, 3 core.

240 Sqmm to 300 Sqmm, 3 core.

Supply and fixing 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 complete all as specified and directed:-

95 Sqmm to 120 Sqmm , 3 core.

150 Sqmm to 185 Sqmm, 3 core.

240 Sqmm to 300 Sqmm 3 core

Supply and fixing 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 complete all as specified and directed:-

95 Sqmm 3 core.

120 Sqmm to 185 Sqmm, 3 core.

240 Sqmm to 300 Sqmm 3 core

Supply and fixing 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 all as specified and directed.

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 25x4mm 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 specified and 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 replacement Cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers,welding, bending cold or hot,drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primer coat, one under coat and one finishing coat of aluminium paint on 4/6 pole 11 KV HT structure complete all as specified and directed.

M & L for cutting and removing grass, vegetation bushes etc from surrounding 4 pole/6 pole HT structure , outside area of HT installation and removing all rubbish to a distance not exceeding 50 m complete all as specified and directed.

Suplying and laying as replacement in sub station fixing 3.3 to 11 KV electrical insulation mat of size 5 mtr x 2 mtr x 6 mm complete all as specified and directed.

Supplying and fixing in replacement male contact/moving contact for gang operated air break device 11 KV complete all as specified and directed.

Supplying and fixing in replacement female contact /fix contact jaw for gang operated air break device 11 KV complete all as specified and directed.

Supplying and fixing in replacement tinned copper flexible jumper 200 Amp/400 Amp for gang operated air break device 11 KV complete all as specified and directed.

Supplying and fixing in replacement MS jumper carrier for gang operated air break device 11 KV complete all as specified and directed.

Supplying and fixing in replacement back connector plate for gang operated air break device 11 KV complete all as specified and directed.

Supplying and fixing in replacement porcelain post insulator for gang operated air break device 11 KV complete all as specified and directed.

Supplying and fixing in replacement drop out fuse element 5 to 25 Amp complete all as specified and directed.

Supplying and fixing in replacement drop out fuse element 50 Amp complete all as specified and directed.

Supplying and fixing in replacement drop out fuse element 60 Amp complete all as specified and directed.

Supplying and fixing in replacement drop out fuse element 100 Amp complete all as specified and directed.

Supply only Rubber Hand gloves electricals having insulation upto 15 KV complete all as specified and directed.

S&F in replacement pin type, porcelain, vitreous, white, brown or green insulator including one galvanised mild steel spindle, two galvanised iron washers,nut size 150 mm height 150mm dia, 11000 volts grade complete all as specified and directed.

S&F in replacement for Danger Notice plate of 1.6 mm thick mild steel sheet, vitreous enameled white, with letters, figures and conventional skull and bones in signal red colour and fixed with MS clamps, bolts and nuts of approved size, for HT, 25x20 cm size including taking down old one complete all as specified and directed.

Supply, installing, testing and commissioning in replacement of factory made and tested HT Panel board, size: 1200 mm x 1200 mm x 900 mm ,cubical compartmentalized , out door type double door, suitable for 11000 Volts, 3 phase, 50 HZ AC supply system having bus bar chamber with insulated aluminium bus bars of size ,50 mm x 10 mm, 3 Nos installed on SMC insulators suitable for 11000 Volts. The fixing of double doors shall be on MS hinges with anti-theft provision (the door can't be removed fron enclosure without cutting enclosure). The panel shall be dust and vermin proof. IP-65 class protection and shall be made of 3.15 mm CRCA MS sheet, and 50x 50 x 6mm thick MS angle iron frame work, powder coated front and rear opening type, with apron for cable entry closing locking . including excavation, earth work and platform for the panel with PCC 1:4:8 type D-2 with 40 mm graded crushed stone, 15 cm thick in foundation, brick work in CM 1:6 with sub class 'B', old size bricks, rendering 15 mm thick in CM 1:6 on exposed surfaces and 100 mm thick PCC padding 1:3:6, type C-1 using 20 mm graded crushed stone aggregate on top and grouting bolts etc for panel. The platform shall be such that it is of a height 45 cm above the nearest road level complete all as specified and directed by Engr-in-charge.

mayur enterprises

DS CONSTRUCTION

M P TYAGI ENGINEERS AND CONTRACTORS

Ridhi engineers and builders

Vijay Electricals