Repair maintenance to LT panel with communication facility and connected items at Cariappa vihar EME workshop 105 TA BD Coy RR colony 5 RMC Uri enclave 1 WEC DAS EETSU Polo ground Todapur Kandhar line and adjoining area of AGE U Elect Supply No II u

Amount

Supply, installing, testing and commissioning in replacement outdoor type stainless steel (SS 316) cubical enclosure compartmentalized exterior and interior mirror type brushed suitable for highly corrosive environment, high creep resistance, better mechanical properties like ductility, yield strength, hardness etc.The enclosure shall be made of 2 mm thick SS 316 sheet. The fixing of double doors shall be on SS hinges with anti-theft provision (the door can’t be removed from enclosure without cutting enclosure). All fabrication/welding shall be done with TIG/MIG or as approved by Engineer in charge suitable for SS 316. Sliding handle and locking arrangement front and rear both side . Enclosure shall be suitable for AC supply system 415 volts, 3 phase, 4 wire, 50 Hz. IP-55 class protection and mounted on channel 75 mm welded with panel of SS 316 with 04 Nos foundation bolt of size not less than 20mm dia and 300mm long. The enclosure shall have provision of cable alley . Cable entry from bottom side including internal wiring with PVC insulated solid, copper conductor FRLS cable, IS-694 marked, 1100 volts grade of appropriate size (but not less than 2.5 sqmm).

The enclosure shall also have 3G/4G LTE router/modem compatible with IEC 104 protocol and having RS 485 port for communicating on Modbus protocol, RS 232,Security - Zone based firewall, VLAN, DMZ, HTTPS local & remote connection, SIM PIN,Routing - DHCP, static routing, port forwarding, traffic routing, static / dynamic DNS, DNS proxy, NAT, STP, Operating Voltage Range 190-260 V AC, Operating Temperature range -40°C to 60°C, up to 95% RH & Dual SIM (one standby) via two mini-SIM held in trays to transmit data. The modem shall be integrated with MFM to retrieve all analog data from MFM on Modbus protocol and shall transmit the data to control centre over IEC 104 protocol. All necessary support shall also be provided by the contractor/integrator for upstream integration with SCADA control centre with provn of 15A/5A switch socket.

Incomer of the panel having ACB 4 pole , 1000 Amps , 50 kA , 415 Volt AC Horizontal draw out type motorized (EDO) , front operated with Microprocessor based LCD protection release for adjustable over current, short circuit and earth fault protection-01 No, Digital Multifunction Meter (Accuracy class 0.5) with LCD display for measuring of current, voltage, power, power-factor, energy parameters, Total Harmonic Distortion and Maximum Demand Indication etc and shall have RS-485 port for communication on Modbus protocol – 01 No, CTs ratio 1000/5 A, Class 1, ISI marked -01 sets of three, Indicating lamp- 01 set of three & Aluminium bus bar of rating 1500Amp, 4 pole , mounted on SMC insulator- set of four.

Outgoing of the panel having MCCB 4 pole , 320 Amps,50 Hz,415 Volts, 35 KA with microprocessor release - 05 Nos . All outgoing busbar shall be of current carrying capacity not less than 1.5 times the rated current of MCCBs.

All MCCB with adjustable protection for over load and short circuit and conforming to IEC60947-II/IS 13947-II (Latest Version). The MCCB should have Ics=100%Icu. The MCCBs shall have spreader links and barriers as standard feature of manufacturer. All out going feeder shall be connected by cable through suitable size gland plate / glands. The various feeders shall be indicated by font size not less than 20 mm letters using Acrylic sheet . The minimums clearance of bus bar shall be 32mm phase –phase and 26mm for phase to earth. The bus bar shall have colour coding with insulating tape.

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.

All as in item No 1 here-in-before but comprising of the following :- Incomer of the panel having MCCB 4 pole , 630 Amps,50 Hz,415 Volts, 50 KA with microprocessor release - 01 Nos , Digital Multifunction Meter (Accuracy class 0.5) with LCD display for measuring of current, voltage, power, power-factor, energy parameters, Total Harmonic Distortion and Maximum Demand Indication etc and shall have RS-485 port for communication on Modbus protocol – 01 No, CTs ratio 250/5 A, Class 1, ISI marked -01 sets of three, Indicating lamp- 01 set of three & Aluminium bus bar of rating 400 Amp, 4 pole , mounted on SMC insulator- set of four. Outgoing of the panel having MCCB , 4 pole, 320 Amps,50 Hz,415 Volts, 50 KA with thermal & magnetic release - 02 Nos, MCCB 4 pole , 250 Amps,50 Hz,415 Volts, 35 KA with thermal & magnetic release - 03 Nos. All outgoing busbar shall be of current carrying capacity not less than 1.5 times the rated current of MCCBs.

Supply, installing, testing and commissioning in replacement outdoor type stainless steel (SS 316) cubical enclosure compartmentalized exterior and interior mirror type brushed suitable for highly corrosive environment, high creep resistance, better mechanical properties like ductility, yield strength, hardness etc.The enclosure shall be made of 2 mm thick SS 316 sheet. The fixing of double doors shall be on SS hinges with anti-theft provision (the door can’t be removed from enclosure without cutting enclosure). All fabrication/welding shall be done with TIG/MIG or as approved by Engineer in charge suitable for SS 316. Sliding handle and locking arrangement front and rear both side . Enclosure shall be suitable for AC supply system 415 volts, 3 phase, 4 wire, 50 Hz. IP-55 class protection and mounted on channel 75 mm welded with panel of SS 316 with 04 Nos foundation bolt of size not less than 20mm dia and 300mm long. The enclosure shall have provision of cable alley . Cable entry from bottom side including internal wiring with PVC insulated solid, copper conductor FRLS cable, IS-694 marked, 1100 volts grade of appropriate size (but not less than 2.5 sqmm).

Incomer of the panel having MCCB 4 pole , 250 Amps,50 Hz,415 Volts, 35 KA with microprocessor release - 01 Nos , Digital Multifunction Meter (Accuracy class 0.5) with LCD display for measuring of current, voltage, power, power-factor, energy parameters, Total Harmonic Distortion and Maximum Demand Indication etc and shall have RS-485 port for communication on Modbus protocol – 01 No, CTs ratio 250/5 A, Class 1, ISI marked -01 sets of three, Indicating lamp- 01 set of three & Aluminium bus bar of rating 400 Amp, 4 pole , mounted on SMC insulator- set of four.

Outgoing of the panel having MCCB , 4 pole , 125 Amps,50 Hz,415 Volts, 25 KA with thermal & magnetic release - 02, MCCB 4 pole , 63 Amps,50 Hz,415 Volts, 25 KA with thermal & magnetic release - 04 Nos. All outgoing busbar shall be of current carrying capacity not less than 1.5 times the rated current of MCCBs.

All MCCB with adjustable protection for over load and short circuit and conforming to IEC60947-II/IS 13947-II (Latest Version). The MCCB should have Ics=100%Icu. The MCCBs shall have spreader links and barriers as standard feature of manufacturer. All out going feeder shall be connected by cable through suitable size gland plate / glands. The various feeders shall be indicated by font size not less than 20 mm letters using Acrylic sheet . The minimums clearance of bus bar shall be 32mm phase –phase and 26mm for phase to earth. The bus bar shall have colour coding with insulating tape.

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.

All as in item No 3 here-in-before but comprising of the following :- Incomer of the panel having MCCB 200 Amps,50 Hz,415 Volts, 35 KA with microprocessor release - 01 Nos , Digital Multifunction Meter (Accuracy class 0.5) with LCD display for measuring of current, voltage, power, power-factor, energy parameters, Total Harmonic Distortion and Maximum Demand Indication etc and shall have RS-485 port for communication on Modbus protocol – 01 No, CTs ratio 200/5 A, Class 1, ISI marked -01 sets of three, Indicating lamp- 01 set of three & Aluminium bus bar of rating 300 Amp, 4 pole , mounted on SMC insulator- set of four. Outgoing of the panel having MCCB 4 pole , 125 Amps,50 Hz,415 Volts, 25 thermal & magnetic release - 01 Nos, MCCB 4 pole , 63 Amps,50 Hz,415 Volts, 25 KA with thermal & magnetic release - 03, All outgoing busbar shall be of current carrying capacity not less than 1.5 times the rated current of MCCBs.

Earthing in replacement 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 32mm 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.

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