CWE/HSR/ALW-28 OF 2021-22 PROVN OF DEFICIENT E/M SERVICES (GYSER AND ONE EXHAUST FAN) IN EACH 240 JCOS/OR ACCN AND ELECTRIC TRANSFORMER AND SPL REPAIR/ REPLACEMENT TO BER ITEMS UNDER GE ALWAR AT ALWAR MIL STN

Amount

Excavating in trenches not exc 1.5 metre wide and not exc 1.5 metre in depth or n exc 10 sqm on plan for foundation of poles etc or for laying of cables, pipes etc and getting out in soft/loose soil complete all as specified.

Excavating in post holes (or similar holes) each n exc 0.5 cu. m, getting out, returning, filling in and ramming earth or broken rubble mixed with earth around, in layers not exceeding 25 cm arround foundation concrete as ordered , watering and removing surplus soil to a distance n exc 50 m and making good surfaces complete all as specified and directed.

Returning, filling in, including spreading, leveling, watering and well ramming in layers not exc 25 cm thick in soft/loose soil.

Removal of excavated soil/ material to a distance not exc 50 metre and depositing where directed at a level not exc 1.50 metre above the starting point complete all as specified.

Supply and laying fly ash brick (as per IS-13757, 1993) burnt clay fly ash building bricks, old size, with width equal to the length of the brick laid dry and flat abutted with each other with gap between adjacent brick not exc 10 mm over UG cable for protection, complete all as specified & directed.

Supplying and laying for un-reinforced precast concrete cable cover class HV, Type 1, flat, size 300mmx l80mm x 40mm complete all as specified and directed.

M & L for sand cushioning to PVC underground cable with screened and washed sand and punning to provide a required cover complete all as specified. Note: For all purpose of payment only punned thickness will be measured.

M&L for Galvanized iron tubing, 40mm bore light grade, ISI marked, including all fittings and laid in trenches/under road/drains, fixed to poles/walls with required size of flat iron (25mmx3mm) clamps, bolts, nuts and washers for protection of electric cable complete all as specified and directed.

M&L for Galvanized iron tubing, 100 mm bore light grade, ISI marked, including all fittings and laid in trenches/under road/drains, fixed to poles/walls with required size of flat iron (50 mmx5mm) clamps, bolts, nuts and washers for protection of electric cable complete all as specified and directed.

Supplying,transporting to site errecting and fixing in position steel tubular swaged pole 11 meter long type 410 SP -55 complete with cast iron base plate,pole cap,finial taper plug ,bolts,nuts,washers etc including painting with two coat of alluminium paint over one coat of red oxide primer including 3 nos. bend/strip in red post office box colour (300 mm wide each) using florocent paint commencing at a distance 300 mm from padastal of of poles and making pole no. with black synthatic enamelled paint including tarring one coat on steel surface embadded in concrete complete all as specified and directed.

Supply, laying jointing, testing & commisioning cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty)with stranded aluminium conductor, 1100 volts grade, of 95 Sqmm 3.5 core laid in treches /duct/passing through pipe /fixed to pole complete all as specified and directed..

S&F Cross arms,bracings,supports,clamps and back plates fabricated from structural steel section including nuts,bolts,washers,welding,bending(Cold or Hot) drilling holes for bolts bent to any shape or size as indicated or directed inclusive two coat of aluminium paint over a coat of red oxide/zinc chromate primer complete all as specified and directed .

Supply , installation,testing and commisioning of HT 11 KV outdoor type air break gang operated tripple pole horizontal mounting type (ISI Marked) mechanically operated mounted on 15 insulators for current rating upto 400 Amps complete with drop out fuse carriers and HT Fuse elements and frame work with operating mechanism worked from ground level , with locking arrangement including Godrej pattern 65 mm pad locks with two keys complete including necessary electrical connections complete all as specified and directed.

Supply & fix lightening arrestor, expulsion type complying with IS 3070 (Part-II) -1989 complete with all fittings, transmission class, discharge capacity 65 Kilo amp with all connecting lead and fittings, horn gap and chocking soil suitable for maximum working pressure 11000 Volts complete all as specified.

M & L for Anti-climbing device; spikes type fabricated out of M.S. bars (round,square and flat) including nuts,bolts, washers and welding in two halves made to shape to suit the cross section of the pole complete all as specified and directed.

M&L for Danger notice plate of 1.6 mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with M.S. clamps, bolts and nuts of approved size, for HT,25x 20 cm size fitted in HT poles /transformer complete all as specified and directed.

Supply and errecting cable path indicator for HT 11 KV cable made of CI plate fixed on MS angle iron size 40X40X5mm and 90 cm long and fixing in ground 60 cm below ground level in pcc 1:3:6 type B1 using 40 mm grade stone aggregate of size 45x45x60 cable path indicators shall be provided at distance of every 30 meters and at cable joints and turning of all cables and incorported HT 11000 Volts on it including PCC & Earth work complete all as specified and directed

Surface dressing/cleaning surrounding area for two pole/ 4 pole structure/Tfr along side area, including removing of tree branches, small tree plants, bushes etc complete all as directed.

M&L 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 armourend aluminium conductor cable of size 120 sqmm.

Supply, Laying jointing, testing & commisioning cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty)with stranded aluminium conductor, 11000 volts grade, of size 3 core 120 sq mm laid in treches /duct/passing through pipe /fixed to pole complete all as specified and directed.

Supply, Laying jointing, testing & commisioning cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty)with stranded aluminium conductor, 1100 volts grade, of sizes 35 Sq mm 3.5 Core laid in treches /duct/passing through pipe /fixed to pole complete all as specified and directed..

Supply, Laying jointing, testing & commisioning cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty)with stranded aluminium conductor, 1100 volts grade, of sizes 240 Sq mm 3.5 Core Core laid in treches /duct/passing through pipe /fixed to pole complete all as specified and directed..

Supply, Laying jointing, testing & commisioning cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty)with stranded aluminium conductor, 1100 volts grade, of sizes 400 Sqmm 3.5 Core laid in treches /duct/passing through pipe /fixed to pole complete all as specified and directed..

M&L for earthing to electric equipments / panels with and including galvanized MS earth plate electrode of size 600x600x6mm thick burried vertically in ground to a depth not less than 2.25 metre below ground level, with top edge of earth plate not less than 1.5m below ground level as shown in electrical plate No 3 of SSR Part I, the earth plate surrounded by adequate quantity of charcoal dust and salt to a packed thickness of 15cm on all sides, excavation & earth work in any type of soil and removal of surplus soil upto 50m including galvanized mild steel strip 32 mm x 6mm as earth lead, welding at top of electrode and other end of strip connected to equipment body/panel/test point with two Nos nuts bolts or welding with steel structure, GI earth strip encased in and including 40mm bore GI light grade pipe with all fittings from upper edges of earth plate upto 3.00 metre above ground level fixed along equipment body/panel with and including 25x3mm FI clamps, bolts, nuts and washers, PCC chamber (1:3:6) type C1, MS funnel with wire mesh, GI pipe medium grade 20 mm bore for watering, 75 mm thick RCC cover 1:2:4 type B1 shall be provided on CI frame etc complete all as specified & as directed.

M&L for earthing to electric equipments / panels with and including galvanized MS earth plate electrode of size 600x600x6mm thick burried vertically in ground to a depth not less than 2.25 metre below ground level, with top edge of earth plate not less than 1.5m below ground level as shown in electrical plate No 3 of SSR Part I, the earth plate surrounded by adequate quantity of charcoal dust and salt to a packed thickness of 15cm on all sides, excavation & earth work in any type of soil and removal of surplus soil upto 50m including galvanized wire 4mm as earth lead, welding at top of electrode and other end of strip connected to equipment body/panel/test point with two Nos nuts bolts or welding with steel structure, GI earth strip encased in and including 40mm bore GI light grade pipe with all fittings from upper edges of earth plate upto 3.00 metre above ground level fixed along equipment body/panel with and including 25x3mm FI clamps, bolts, nuts and washers, PCC chamber (1:3:6) type C1, MS funnel with wire mesh, GI pipe medium grade 20 mm bore for watering, 75 mm thick RCC cover 1:2:4 type B1 shall be provided on CI frame etc complete all as specified & as directed.

Supply and installation, testing, commissioning level 3, 63 KVA, 11/0.433KV, AN, Oil cooled Transformer with corrugated off circuit tap links of rating +5 to - 5% @ 2.5 %.by means of hand operated off load tap changing gear, copper wound step down Indoor type 11000/433 Volt (at no load) double wound, oil immersed naturally cooled with external cooling tubes core type delta connected on primary side (HV) and star connected on secondary side (LV) in accordance with vector symbol Dy-II (vector group) with neutral brought on secondary side (LV side) and having tapping at /- -2.5%/ 5.0% and /-7.5% to be changed the maximum temperature rise should not exceed 45 degree centigrade in oil and 55 degree centigrade in HV / LV winding when measured by resistance method after continuous full load run in ambient temp of 40 degree centigrade and the transformer shall be comprised with the following standard accesorie:-. a) Oil Conservator tank with filter type drain valve and filling cap (b) De-Hydrating Silical gel breather with silicagel (c) Oil Level Gauge (d) Oil Drain Valve (e) Thermometer Pocket with Thermometer (f) Rating Plate with Diagram (g) Two Independent earthing terminal on tank cover for earthing Connection h) Lifting Lugs (j) Four Nos of Bi Directional Plain Roller (k) Air release valve plug (l) Explosion Vent (m) Cable Terminating Box (n) Dial Type thermometer 150mm vapour pressure type having range of 0 -120 degree celcisus with reading pointer, maximum temperatureindicator with resetting device and alarm contacts.(o) Neutral Terminal with provision foe Cable Termination & earthing (p) First filling of new transformer oil Conforming to IS 335/95 (fourth Revision) (q) Foundation Channel (r) Cooling Fins (s) HT Bushings (t) LT Bushings with Copper Extension Links (u) OFF Load tap Changer with locking facility v) Oil filling opening with cap complete (w) Extension Copper Bus Bar

Supply and installation, testing, commissioning level 3, 200 KVA, 11/0.433KV, AN, Oil cooled Transformer with corrugated off circuit tap links of rating +5 to - 5% @ 2.5 %.by means of hand operated off load tap changing gear, copper wound step down Indoor type 11000/433 Volt (at no load) double wound, oil immersed naturally cooled with external cooling tubes core type delta connected on primary side (HV) and star connected on secondary side (LV) in accordance with vector symbol Dy-II (vector group) with neutral brought on secondary side (LV side) and having tapping at /- -2.5%/ 5.0% and /-7.5% to be changed the maximum temperature rise should not exceed 45 degree centigrade in oil and 55 degree centigrade in HV / LV winding when measured by resistance method after continuous full load run in ambient temp of 40 degree centigrade and the transformer shall be comprised with the following standard accesorie:-. (a) Oil Conservator tank with filter type drain valve and filling cap (b) De-Hydrating Silical gel breather with silicagel (c) Oil Level Gauge (d) Oil Drain Valve (e) Thermometer Pocket with Thermometer (f) Rating Plate with Diagram (g) Two Independent earthing terminal on tank cover for earthing Connection (h) Lifting Lugs (j) Four Nos of Bi Directional Plain Roller (k) Air release valve plug (l) Explosion Vent (m) Cable Terminating Box (n) Dial Type thermometer 150mm vapour pressure type having range of 0 -120 degree celcisus with reading pointer, maximum temperatureindicator with resetting device and alarm contacts. (o) Neutral Terminal with provision foe Cable Termination & earthing (p) First filling of new transformer oil Conforming to IS 335/95 (fourth Revision) (q) Foundation Channel (r) Cooling Fins (s) HT Bushings (t) LT Bushings with Copper Extension Links (u) OFF Load tap Changer with locking facility (v) Oil filling opening with cap complete (w) Extension Copper Bus Bar

Boring of holes under road,pavement, hard standing by trench less technology using ultra sound technique and necessary machine including HDPE pipe of 150mm dia suitable for 0.4 mpa working pressure complete all as specified..

Demolition of plain cement Concrete in ground floors and pavings n exc 15 cm thickness (below or above ground level) complete all as specified and directed.

M & L for 100 mm thick PCC 1:4:8 Type D-2 using 40 mm graded stone aggregate as in sub base of floors complete all as spcified and directed.

Fixing only retrieved Machine pressed precast concrete interlocking paver block any shape and size confirming to IS 15658-2006 of 60 mm thickness, M-35 Grade with grey cement and no pigment except tiles ,including taking down and 25 cm thick sand cushioning complete all as specified and directed.

M & L for PCC 1:3:6 type C-1 using 20 mm graded crushed stone aggregate as in coping padastal of poles etc including watering slightly rounded or chamfered angles and throating , necessary form work finshing all exposed faces of concrete even and smooth cement complete all as specified and directed.

M&L for cement concrete 1:2:4 type B1 using 20 mm graded stone aggregate as in coping and the like, weathering, slightly rounded or chamfered angles including necessary form work complete.

M & L for cement concrete 1:3:6 type C2 using 40 mm graded stone aggregate as in foundation filling and mass concrete all as specified.

M & L for 100 mm thick PCC 1:4:8 Type D-2 using 40 mm graded stone aggregate as in foundation ,filling,and mass concrete all as directed by Engineer-in-charge .

`Material and labour for brickwork with fly ash bricks straight or curved on plan exe 6m mean radius built in old size bricks in cement mortar 1:4 complete

M&L for loose filling with aggregates of gauge 40 to 80 mm in soakage pits ,soakage wells

Returning, filling in, including spreading, leveling, watering and well ramming in layers not exc 25 cm in any type soil.

Hardcore of gauge n exe 63 mm,deposited ,spread and levelled in layers n exe 15 cm thick ,watered and rammed to a true surface Broken stone boulders

M&L for 100 mm thick PCC 1:2:4 type B2 (using 40mm geaded stone aggregate) sub base of flooring even and smooth with using extra cement complete

M&L for retendering 15 mm thick in CM 1:4 on fair faces of brick work or concrete surface complete all as specified and directed.

S & F for mild steel angle iron fencing post ,struts and flat iron for fixing chain link fencing and similar work confirming to Fe-290 Gde E-165 including cutting top to shapes as directed bent to shape drilling holes ,notching,hooking for wires etc complete all as specified and directed.

Supply only 10 mm dia mild steel round bars confirming to Fe-410 W (Gde E-250) quality "A" bars for runner in available length for fixing chain link fencing complete all aspecified and directed.

Fixing only chain link fencing including line wires, any mesh, size and type to any type of standards, rails, straining bolts, etc.including provission of binding wire complete all as specified and directed.

Supply only chain link MS galvanized fencing of size 100x100 mm 4 mm dia complete all as specified and directed.

S & F Galvanised. 2 strand, steel barbed wire 2.24mm dia barbed with 2mm dia barbs at 75mm spacings and straining and fixing to any type of standard rails strain- ing bolts, including, securing or tying at crossings with and provision of galvanised mild steel wire, staples or steel pins, etc. as directed (each line wire to be measured) complete all as specified.

Supplied and fixed mild steel screw bolts (machine made) with hexagonal or square heads at one end and screwed the other or screwed both ends ,each screwed end to be fitted with washers and one hexagonal or square nut, n exe 5 cm long and dia 11 mm to 15mm all as directed by Engineer-in-charge.

S&F for frame work as in doors or gates of angle or other section with gusset plates,rails,braces etc complete drilling for fixing of steel sheeting or other covering doors etc to be prepared for hanging or sliding with and including either hooks or hinges or steel hanging door fitting complete with Fe 410-0 or Fe-310-0 complete all as directed by Engineer-in-charge

M&L for painting of steel surfaces of any description, over 10cm in width or grith, not otherwise described and apply two coat fo synthetic enamel paint over one coat of red oxide, zinc chrome prime including preparation of new steel surfaces complete all as per directed by Engineer-in-chrage.

Supply, install, connecting, testing and commissioning of cubicle compartmentalised OUTDOOR type Automatic power factor correction (APFC) panel (as per IS 8623), factory made, 100 KVAR, single door front opening with locking arrangement, floor mounted, dust and vermin proof, CPRI approved, fabricated out of 3.15 mm thick CRCA sheet steel and base frame, Protection class minimum IP 43, over all finished with epoxy powder coating, suitable for operation on 415 Volts, 50 Hz, AC supply, including earthing stud, labelling, danger plates etc. and panel shall comprising the following complete including fixed in position, connect with electric supply complete. (a) MCCB 160 Amps, Breaking capacity 36 kA, 3 Pole, - 01 No (b) Power Factor Correction Capacitors, Heavy Duty Cylindrical type (Gas filled) in various combination 100 KVAR -01 Set (c) Multifunction meter Class, 1.0, Three line Bakelite LCD Display with back sealing arrangement , with meter run hour & power on Hour, AVG , Max & total value of Active , reactive & apparent power & span shot of power ( KW) , current (I) , Voltage (V) & PF with programmable CT Ratio of + 5A along with Suitable size core CTs for current sensing Make HPL , Cat Part No NEMFVIFPPE000 or equivalent of Make : L & T / Secure / Conserve. (d) Indication lamp 22.5mm dia LED type 240volts AC to show three phase availability-01Set.

Supply, install, connecting, testing and commissioning of cubicle compartmentalised OUTDOOR type Automatic power factor correction (APFC) panel (as per IS 8623), factory made, 40 KVAR, single door front opening with locking arrangement, floor mounted, dust and vermin proof, CPRI approved, fabricated out of 3.15 mm thick CRCA sheet steel and base frame, Protection class minimum IP 43, over all finished with epoxy powder coating, suitable for operation on 415 Volts, 50 Hz, AC supply, including earthing stud, labelling, danger plates etc. and panel shall comprising the following complete including fixed in position, connect with electric supply complete. (a) MCCB 63 Amps, Breaking capacity 16 kA, 3 Pole, - 01 No (b) Power Factor Correction Capacitors, Heavy Duty Cylindrical type (Gas filled) in various combination 40 KVAR -01 Set (c) Multifunction meter Class, 1.0, Three line Bakelite LCD Display with back sealing arrangement , with meter run hour & power on Hour, AVG , Max & total value of Active , reactive & apparent power & span shot of power ( KW) , current (I) , Voltage (V) & PF with programmable CT Ratio of + 5A along with Suitable size core CTs for current sensing Make HPL , Cat Part No NEMFVIFPPE000 or equivalent of Make : L & T / Secure / Conserve. (d) Indication lamp 22.5mm dia LED type 240volts AC to show three phase availability-01Set.

M&L for point wiring complete with proper colour coding using, 1100 volts grade, 1.5 Sqmm, PVC insulated FRLS, unsheathed wire with multi stranded copper conductor conforming to IS-694, part-II, ISI marked and including PVC casing and caping not less than 25 mm wide, ISI marked with all accessories, fixing on wall/celling/floor/roof etc,suitable size of wooden box with hylum sheet for fixing of switches and sockets complete with chromium plated brass screws including 1.5 Sqmm, PVC insulated, FRLS, unsheathed, 1100 volts multistranded copper conductor green colour as continuous earth wire connected to common earth dolly all as specified and directed .

M&L for point wiring complete with proper colour coding using, 1100 volts grade, 2.5 Sqmm, PVC insulated FRLS, unsheathed wire with multi stranded copper conductor conforming to IS-694, part-II, ISI marked and including PVC casing and caping not less than 25 mm wide, ISI marked with all accessories, fixing on wall/celling/floor/roof etc,suitable size of wooden box with hylum sheet for fixing of switches and sockets complete with chromium plated brass screws including 1.5 Sqmm, PVC insulated, FRLS, unsheathed, 1100 volts multistranded copper conductor green colour as continuous earth wire connected to common earth dolly all as specified and directed .

S&F Switch piano, flush type, single pole one way 5/6 Amps 230 volts complete all as specified..

S&F Ceiling rose with earth terminal connection, 3 terminal PVC/ polycarbonate body complete all as specified..

S & F switch socket combination outlet two in one 3 pin 16A, flush type 240 volts complete all as specified. .

Fixing only Exhaust fan AC 300 mm sweep 230/240 volts 50 hz single phase 1400 RPM ,1600 cum per hour minimum air delievery double ball bearing type with louvers. Make :Havelles /Bajaj /Racold

Fixing only Electric water heater (Geyser) storage type 25 Ltrs Capacity,suitable for 8 Bar pressure made of steel Body With copper inner tank and heating element upto 2 kw Complete with all accessories such as saftey valve ,NRV ,theremostat,15 Amps plug top etc. Make/brand: Havelles/Bajaj/Racold

M&L for provision of hole or making provision for fixing 300 mm sweep exhaust fan in existing 380 mm to 400 mm stone/brick Masonary wall (Built in cement mortar), grouting of studs in wall in cement mortar (1:3) including proper internal plaster work in cement and sand mortar (1:3) in side the hole as per site reqmt and make good to disturbed surface as per exiting surface ,complete all as specified and as directed

S & F Sheet metal enclosure double door type DB TPN 4 way 415 volts IP -43 protection made out of CRCA mild steel sheet with tinned copper bus bar of 200 Amps rating confirming to IS- 13032,IS 8623 BS -5484.Make/Brand : Havells/ABB/Legrand

S & F Sheet metal enclosure double door type DB SPN 4 way 240 volts IP -43 protection made out of CRCA mild steel sheet with tinned copper bus bar of 200 Amps rating confirming to IS- 13032,IS 8623 BS -5485.Make/Brand : Havells/ABB/Legrand

M&L MCB Tripple pole and neutral 415 volts 50 hz 63 Amps B curve complete including connecting to MCB DB all as specified and directed. . Make/brand: Havelle/ABB/Legrand

M&L MCB Single pole and neutral 240 volts 50 hz 40Amps B curve complete including connecting to MCB DB all as specified and directed. . Make/brand: Havelle/ABB/Legrand

M&L 240V, 10KA 'B' curve miniature circuit breaker (MCB) of Single pole and 6-32 Amps current carrying capacity in the MCB DB complete with connection testing and commissioning.

M&L for submain Wiring with 2 single core PVC insulated & PVC unsheathed FRLS cable 1100 volts grade with 6 sqmm multi stranded conductor drawn through and including PVC conduit fixed on surface to wall,ceilling by means of MS Screws ansd saddles including one run of 4 sqmm single core multistranded copper conductor 1100 volts grade PVC insultaed and unsheathed FRLS cable as earth continuity conductor to common earth dolly complete all as specified and directed. Note: 2 Runs of main cable and 1 run of earth continuity conductor and one run of conduit will be measured and paid as one length only.

S&F on wall or ceilling 15 mm bore galvanized steel water tubing medium grade including necessary fittings such as GI Bends/elbow,tee,union etc.all as specified and directed by Engg. In charge

S&F bib tap, 15 mm dia, cast copper alloy with crutch or butterfly handle all as specified

S&F stop valve, 15 mm dia, cast copper alloy, screwed down, high pressure, with crutch or butterfly handle, screwed both ends for iron pipe or for unions and fixed.

M&L for Cutting existing steel tubing 15 mm bore for alterations or additions (Each cut measured)

M&L for Screwing existing steel tubing of 15 mm bore for alterations or additions (or lengthening screw on pipe to form connector)

Supply only energy efficient ISI marked, 5 star rated ceiling fan 1200mm sweep, single phase 230/240 volts AC. Make Orient/Havells/Bajaj.

Supply tamper proof electronic energy meter, (AC static KWh meter) with LCD display, signal phase ISI Marked, 10 to 60 Amps (Measures & Display, KWH, V, KW, PF, Last month history of KWH, MD in KW, 240v, 50Hz, AC Poser consumption less than 1 watt, calss 1 accuracy as per IS : 13779, starting current 0.4% of bsic current, overloading capacity 400% of basic current for direct reading with special features like TOD, temper looging, optical communication port & display in absence of power and as directed by the Engr-in-charge. Make : HPL/Secure.

Supply only electric water heater, storage type boody with copper inner tank and heating element upto 2 KW capacity 50 ltr, BEE 5 star rated complete with all accessories such as safety valve, thermostate, NRV, connection piece etc. Make/brand: Havelles/Bajaj/Racold

Ridhi engineers and builders

M/S RAJESH KUMAR & SONS

Saini Enterprises