SPECIAL REPAIRS FOR REPLACEMENT OF OLD UNSERVICEABLE DISTRIBUTION TRANSFORMERS AGAINST BER AND UNDERGROUND CABLES IN THE TPW AT ND UNDER GE U I, VISAKHAPATNAM

Supplying, Installing, Connecting, Commissioning and Testing of Transformer, Step Down, indoor type, 11 KV / 433 V [at No load], AC, 3 Phase, 50 Hz, of 750 KVA capacity, Double Copper Wound, Oil immersed, CRGO Core type Naturally cooled, Built-up with class "A" insulation, designed & constructed with particular reference to Tropical Condition, conforming to IS – 1180 [Part-I], Level-3 with latest amendment including dismantling of old transformer of any type and capacity with connected accessories including shifting the same to MES store yard of AGE E/M complete all as specified and as directed and comprising of the following Specification and Fittings:- Continuous Rating : 750 KVA No-Load Voltage Ratio : 11 KV / 433 V Tapping on HV [%] : ± 7.5, ± 5, ± 2.5 Phase & Frequency : 3 Phase & 50 Hz Connection : Delta Star Vector Group : DYN 11 Cooling : ONAN Type : Outdoor with HV/lv cable Box

Fittings: [a] Externally hand operated Off–Circuit Tap Switch with position indicator and locking device. [b] Conservator with Oil Gauge, filling hole with plug & drain hole with plug [c] Undercarriage with four plain rollers [d] Oil filling hole cum air release plug [e] Drain Valve cum Sampling Valve [f] Top Filter Valve with Plug [g] Rating Plate with Diagram Plate [h] Lifting lugs for Transformer [j] Lifting lugs for Core [k] Earthing Terminals [l] Thermometer Pockets [m] Silica Gel Breather [n] Explosion Vent [o] Double Float Buchholz with alarm and trip contacts including control cable of copper conductor of size & length from Marshalling Box to Relay of VCB [p] 150mm size Oil Temperature indicator, dial type with alarm and trip contacts [q] 150mm size Winding Temperature indicator, dial type with alarm and trip contacts [r] Buchholz Relay with 2 Shut-Off Valves [s] Marshalling Box with Double Window

Terminal Arrangement: [i] HV and LV Side: Cable Box [ii] Quad furcating cable box with five compression glands for PVC Cable and One additional neutral terminal shall be brought out separately for earthing purpose on LV Side. [iii] First filling of new and unused Transformer Oil [IS – 335 Marked], filtered and tested up to 60KV dielectric strength at 2.5mm air gap between testing electrodes. Certification of dielectric strength shall be submitted by the Contractor after filling the oil. [iv] Apart from routine tests mentioned in these tender documents and relevant IS, pre-commissioning inspection of Transformer shall be carried out by Senior Electrical Inspector / Electrical Inspector. [v] All necessary arrangements with devices for measuring the temperature of core winding and oil shall be done by contractor deemed to be included in the quoted rate [vi] Platform for placement of Transformer shall be as per the manufacturer's instructions complete all as specified and as directed. The cost of platform is deemed to be included in the quoted rate. [vii] The drawings of the transformer should be approved by the accepting officer before placing order. [viii] The factory acceptance test to be done by the rep of Accepting officer prior to dispatch.

Supplying, Installing, Connecting, Commissioning and Testing of Transformer, Step Down, Outdoor type, 11 KV / 433 V [at No load], AC, 3 Phase, 50 Hz, of 315 KVA capacity, Double Copper Wound, Oil immersed, CRGO Core type Naturally cooled, Built-up with class "A" insulation, designed & constructed with particular reference to Tropical Condition, conforming to IS – 1180 [Part-I], Level-3 with latest amendment including dismantling of old transformer of any type and capacity with connected accessories including shifting the same to MES store yard of AGE E/M (Dolphin hill) complete all as specified and as directed and comprising of the following Specification and Fittings:- Continuous Rating : 315 KVA No-Load Voltage Ratio : 11 KV / 433 V Tapping on HV [%] : ± 7.5, ± 5, ± 2.5 Phase & Frequency : 3 Phase & 50 Hz Connection : Delta Star Vector Group : DYN 11 Cooling : ONAN Type : Outdoor with HV/LV cable Box

Fittings: [a] Externally hand operated Off–Circuit Tap Switch with position indicator and locking device. [b] Conservator with Oil Gauge, filling hole with plug & drain hole with plug [c] Undercarriage with four plain rollers [d] Oil filling hole cum air release plug [e] Drain Valve cum Sampling Valve [f] Top Filter Valve with Plug [g] Rating Plate with Diagram Plate [h] Lifting lugs for Transformer [j] Lifting lugs for Core [k] Earthing Terminals [l] Thermometer Pockets [m] Silica Gel Breather [n] Explosion Vent [o] 150mm size Oil Temperature indicator, dial type with alarm and trip contacts [p] 150mm size Winding Temperature indicator, dial type with alarm and trip contacts [q] Marshalling Box with Double Window

Terminal Arrangement: [i] HV and LV Side: Cable Box [ii] Quad furcating cable box with five compression glands for PVC Cable and One additional neutral terminal shall be brought out separately for earthing purpose on LV Side. [iii] First filling of new and unused Transformer Oil [IS – 335 Marked], filtered and tested up to 60KV dielectric strength at 2.5mm air gap between testing electrodes. Certification of dielectric strength shall be submitted by the Contractor after filling the oil. [iv] Apart from routine tests mentioned in these tender documents and relevant IS, pre-commissioning inspection of Transformer shall be carried out by Senior Electrical Inspector / Electrical Inspector. [v] All necessary arrangements with devices for measuring the temperature of core winding and oil shall be done by contractor deemed to be included in the quoted rate [vi] Platform for placement of Transformer shall be as per the manufacturer's instructions complete all as specified and as directed. The cost of platform is deemed to be included in the quoted rate. [vii] The drawings of the transformer should be approved by the accepting officer before placing order. [viii] The factory acceptance test to be done by the rep of Accepting officer prior to dispatch.

Supplying, Installing, Connecting, Commissioning and Testing of Transformer, Step Down, Outdoor type, 11 KV / 433 V [at No load], AC, 3 Phase, 50 Hz, of 250 KVA capacity, Double Copper Wound, Oil immersed, CRGO Core type Naturally cooled, Built-up with class "A" insulation, designed & constructed with particular reference to Tropical Condition, conforming to IS – 1180 [Part-I], Level-3 with latest amendment including dismantling of old transformer of any type and capacity with connected accessories including shifting the same to MES store yard of AGE E/M (Dolphin hill) complete all as specified and as directed and comprising of the following Specification and Fittings:- Continuous Rating : 250 KVA No-Load Voltage Ratio : 11 KV / 433 V Tapping on HV [%] : ± 7.5, ± 5, ± 2.5 Phase & Frequency : 3 Phase & 50 Hz Connection : Delta Star Vector Group : DYN 11 Cooling : ONAN Type : Outdoor with HV/LV cable Box

Fittings: [a] Externally hand operated Off–Circuit Tap Switch with position indicator and locking device. [b] Conservator with Oil Gauge, filling hole with plug & drain hole with plug [c] Undercarriage with four plain rollers [d] Oil filling hole cum air release plug [e] Drain Valve cum Sampling Valve [f] Top Filter Valve with Plug [g] Rating Plate with Diagram Plate [h] Lifting lugs for Transformer [j] Lifting lugs for Core [k] Earthing Terminals [l] Thermometer Pockets [m] Silica Gel Breather [n] Explosion Vent [o] 150mm size Oil Temperature indicator, dial type with alarm and trip contacts [p] 150mm size Winding Temperature indicator, dial type with alarm and trip contacts [q] Marshalling Box with Double Window

Terminal Arrangement: [i] HV and LV Side: Cable Box [ii] Quad furcating cable box with five compression glands for PVC Cable and One additional neutral terminal shall be brought out separately for earthing purpose on LV Side. [iii] First filling of new and unused Transformer Oil [IS – 335 Marked], filtered and tested up to 60KV dielectric strength at 2.5mm air gap between testing electrodes. Certification of dielectric strength shall be submitted by the Contractor after filling the oil. [iv] Apart from routine tests mentioned in these tender documents and relevant IS, pre-commissioning inspection of Transformer shall be carried out by Senior Electrical Inspector / Electrical Inspector. [v] All necessary arrangements with devices for measuring the temperature of core winding and oil shall be done by contractor deemed to be included in the quoted rate [vi] Platform for placement of Transformer shall be as per the manufacturer's instructions complete all as specified and as directed. The cost of platform is deemed to be included in the quoted rate. [vii] The drawings of the transformer should be approved by the accepting officer before placing order. [viii] The factory acceptance test to be done by the rep of Accepting officer prior to dispatch.

Supplying, Installing, Connecting, Commissioning and Testing of Transformer, Step Down, Outdoor type, 11 KV / 433 V [at No load], AC, 3 Phase, 50 Hz, of 200 KVA capacity, Double Copper Wound, Oil immersed, CRGO Core type Naturally cooled, Built-up with class "A" insulation, designed & constructed with particular reference to Tropical Condition, conforming to IS – 1180 [Part-I], Level-3 with latest amendment including dismantling of old transformer of any type and capacity with connected accessories including shifting the same to MES store yard of AGE E/M (Dolphin hill) complete all as specified and as directed and comprising of the following Specification and Fittings:- Continuous Rating : 200 KVA No-Load Voltage Ratio : 11 KV / 433 V Tapping on HV [%] : ± 7.5, ± 5, ± 2.5 Phase & Frequency : 3 Phase & 50 Hz Connection : Delta Star Vector Group : DYN 11 Cooling : ONAN Type : Outdoor with HV/LV cable Box

Fittings: [a] Externally hand operated Off–Circuit Tap Switch with position indicator and locking device. [b] Conservator with Oil Gauge, filling hole with plug & drain hole with plug [c] Undercarriage with four plain rollers [d] Oil filling hole cum air release plug [e] Drain Valve cum Sampling Valve [f] Top Filter Valve with Plug [g] Rating Plate with Diagram Plate [h] Lifting lugs for Transformer [j] Lifting lugs for Core [k] Earthing Terminals [l] Thermometer Pockets [m] Silica Gel Breather [n] Explosion Vent [o] 150mm size Oil Temperature indicator, dial type with alarm and trip contacts [p] 150mm size Winding Temperature indicator, dial type with alarm and trip contacts [q] Marshalling Box with Double Window

Terminal Arrangement: [i] HV and LV Side: Cable Box [ii] Quad furcating cable box with five compression glands for PVC Cable and One additional neutral terminal shall be brought out separately for earthing purpose on LV Side. [iii] First filling of new and unused Transformer Oil [IS – 335 Marked], filtered and tested up to 60KV dielectric strength at 2.5mm air gap between testing electrodes. Certification of dielectric strength shall be submitted by the Contractor after filling the oil. [iv] Apart from routine tests mentioned in these tender documents and relevant IS, pre-commissioning inspection of Transformer shall be carried out by Senior Electrical Inspector / Electrical Inspector. [v] All necessary arrangements with devices for measuring the temperature of core winding and oil shall be done by contractor deemed to be included in the quoted rate [vi] Platform for placement of Transformer shall be as per the manufacturer's instructions complete all as specified and as directed. The cost of platform is deemed to be included in the quoted rate. [vii] The drawings of the transformer should be approved by the accepting officer before placing order. [viii] The factory acceptance test to be done by the rep of Accepting officer prior to dispatch.

Supplying, laying and testing HT UG cable [earthed], XLPE insulated, screened insulated, steel strip armoured and pressure extruded PVC bedded, 11000 Volts grade [heavy duty] with aluminium conductor of size 3 Core 185 Sqmm laid in trenches, fixed to walls or passing through pipes and connecting up including disconnecting of old HT UG cable complete all as specified and as directed.

Supplying, laying and testing HT UG cable [earthed], XLPE insulated, screened insulated, steel strip armoured and pressure extruded PVC bedded, 11000 Volts grade [heavy duty] with aluminium conductor of size 3 Core 150 Sqmm laid in trenches, fixed to walls or passing through pipes and connecting up including disconnecting of old HT UG cable complete all as specified and as directed.

Supplying, laying and testing LT UG cable, XLPE insulated, screened insulated, steel strip armoured and pressure extruded PVC bedded, 1100 Volts grade [heavy duty] with aluminium conductor of size 3 Core 185 Sqmm laid in trenches, fixed to walls or passing through pipes and connecting up including disconnecting of old LT UG cable complete all as specified and as directed.

Supplying, laying and testing LT UG cable, XLPE insulated, screened insulated, steel strip armoured and pressure extruded PVC bedded, 1100 Volts grade [heavy duty] with aluminium conductor of size 3 Core 120 Sqmm laid in trenches, fixed to walls or passing through pipes and connecting up including disconnecting of old LT UG cable complete all as specified and as directed. [Note: Quoted rate for item Nos. 5 to 8 above is deemed to be inclusive for providing Brass glands at terminals and RCC cable route indicators at not more than 50m intervals as specified and directed by the Engineer-in-Charge]

S & F 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 size 120 to 185 Sqmm, complete all as specified and as directed.

S & F Cable Jointing Kit for 11 KV [Earthed] Grade cable for straight through joint heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 to 185 Sqmm, complete all as specified and as directed.

S & F heat shrink end joint suitable for LT UG cable including jointing kits complete for making joints suitable for 3.5/4.0 core XLPE armoured aluminium conductor cable of size 150 to 185 Sqmm, complete all as specified and as directed.

Excavation in trenches not exceeding 1.5m wide and not exceeding 10 Sq.m on plan area and not exceeding 1.5m deep in soft/ loose soil complete all as specified and as directed.

Removing excavated material /soil to a distance not exceeding 50m and depositing where directed at a level not exc 1.5m above the starting point complete all as specified and directed

M&L for Sand filling in trenches using dry river sand as cushioning to under ground cable including spreading, levelling and consolidation complete all as specified and directed. [Note: Punned thickness of sand shall only be measured.]

Returning filling in, including spreading, levelling,watering and well ramming in layers not exc 25cm thickness as in soil complete all as specified and directed.

Supply and laying unreinforced precast concrete cable covers of class HV, type-1, flat of size 300x180x40mm laid in trenches along alignment of cable for protection complete all as directed

Supply and laying common burnt burnt building clay bricks of sub-class 'B' designation 75 old size laid along alignment of cables as protection to cables in trenches complete all as directed

M & L for laying 100mm dia GI pipe light grade laid for cable protection at road crossings or fixed on walls / poles secured with clamps complete all as directed

M & L for laying 80mm dia GI pipe light grade laid for cable protection at road crossings or fixed on walls / poles secured with clamps complete all as directed

M & L for Cutting existing bituminous road / Hardstanding. etc as required at site for laying / jointing cables not exc 600mm in depth and and not exc 300mm in width and refilling the excavted portion including making good the top 100mm thick with PCC 1:3:6, type B-1 using 20mm graded stone aggregate finished even and smooth without using extra cement and removing the surplus materials to a distance not exc 50m complete all as directed by the Engineer-in-Charge.

Supply, install, connect, test and commissioning of weather proof LT Feeder pillar box, cubical type, factory made powder coated, outdoor type pedastal type dust and vermin proof, totally enclosed with front and rear opening hinged doors with canopy sloped top projected and raised platform of suitable size, fabricated with CRCA sheet 3.15mm thick with frame made of angle iron 25x25x6mm thick and legs made of 40x40x6mm, with locking arrangement with aluminium bus bar chamber of 3 Phase 4 wire LT, AC, 50 Hz, 433 volts, 1000 Amps capacity RYBN insulated with sleeved insulation complete with multifunctional meter LED type by showing AMps, Volts, frequency, etc along with suitable size of CT on outgoing, indicating lamp RYB, complete internal wiring with suitable size of PVC insulated copper conductor cable, including cable glands and lugs for incoming and out going cables as per required sizes, PCC platform made out of PCC 1:2:4, type B-1 and pedestal of 45cm height from GL with suitable nut, bolts, washers suitable for and including acommodating the following components complete all as specified and directed:- [a] MCCB, 4P, 630A, 50 KA, Thermal magnetic adjustable - 01 No (incoming) [b] MCCB, 4P, 350A, 36 KA, Thermal magnetic adjustable - 02 Nos [c] MCCB, 4P, 160A, 16 KA, Thermal magnetic adjustable - 01 No [d] MCCB, 4P, 100A, 16 KA, Thermal magnetic adjustable - 02 Nos [e] On load change over switch 415 Volts, 4 Pole, 630 Amps capacity - 01 No Note: All terminations of existing cable should be provided with copper lugs / thimbles and suitable size of glands.

Earthing complete with Galvanized steel earth plate electrode of size 600x600x6mm thick buried directly in ground with earth pit not less than 2.25m deep below the normal ground level with top edge of plate not less than 1.5m below normal GL connected with galvanised earth strip 32x6mm as earth lead by means of bolts, nuts, check nuts and washers of Galvanized iron or steel all as shown in electrical plate No. 3 of SSR Part-I connected to earthing test point all as specified or indicated including testing on completion including taking out old perished earth pits complete all as directed. [Note: The unit rate shall be deemed to include for excavation & earth work in any type of soil, PCC (1:3:6) type C1 chamber, MS angle iron frame 40x40x6mm, RCC 1:2:4 type B-1 cover 40mm thick with 8mm dia steel reinforcement bars at 150mm c/c both ways, MS handle 12mm dia, CI funnel and wire mesh, GI watering pipe 20mm dia medium grade for watering, GI protection pipe light grade 40mm dia, earthing lead upto 7.5m including taking down old earrthing sets complete all as specified in preambles of SSR Part-II and as shown in plate No. 3 of SSR Part-I.]

S & F GI strip of size 32x6mm with saddles and fixing screws etc. for roof conductors and down conductors laid in trench/ floor including necessary clamps, nuts, bolts, and hylem sheet block complete all as directed