Shifting of BESCOM utilities at ORR from JP Nagar 4th Phase to Sarakki Signal of BMRCL Phase-3 Project.

General Technical Particulars of 11kV Class HT UG Cable

Sl. No. Particulars unit HT UG Cable Reference

a) Name of manufacturer

b) Place of manufacture

2 Cable Type A2XWY IS 7098-II/2011 clause 21.3

3 Applicable specificaton & standards voltage Grade IS: 7098 (Part-2) /11kV

4 Suitable for effective Earth/Unearth system

5 Conductor screen, Insulation and insulation screen is manufactured by Tripple extrusion techniq only

6 Permissible voltage & frequency variation for satisfactory operation

7 Continuous current for standard conditon as per IS:

a) In air (45⁰ C) Amps Table 10 of IS 3961 (P7)/2017

b) In Ground (30⁰ C) Amps

c) In Duct Amps

a) Material Aluminium (H2/H4 Grade) BESCOM TS Clause 8.1 & 10.0 & Clause 4 of IS: 8310:2013

b) Purity & Resistivity of Conductor@20ºC

c) Shape of conductor Strandard compacted circular BESCOM TS Clause 8.1 & Clause 4 of IS 8130/2013

d) Geometrical cross sectional area mm²

e) Number of wire: (min) No BESCOM TS Clause 8.1/ Table 2 of IS 8130/2013

f) Diameter of Wire : mm before compacting & strand Diameter mm However, the effective cross section should be as specified as specified at Sl. 8d

f) Maximum DC resistance of the conductor at 20⁰ C Ω/KM ……………..(CR value only for reference) Table 2 of IS 8130:2013

g) Sampling batch for test IS 7098-II/2011 Annex D Annex D of IS 7098-II/2011

9 Conductor Screening

a) Material Pressure Extruded Semiconducting compound

b) Process Triple Extrusion

c) Thickness (Min) mm 0.4mm BESCOM requirement as per clause No.10.02 of BESCOM TS & Clause: 11.1 of IS-7098 Part-2: 2011

d) Continuous working temp deg.C 90

e) Max allowable temp at termination of short circuit deg.C 250 PART 3 of IS 13573/

a) Material XLPE BESCOM requirement, As per clause No.10.03 & Table 1, Annexure TS-2 of BESCOM TS and clause 5 of IS 7098-II /2011

b) Thickness of Insulation (Nom) mm Table 4 of IS 7098-II /2011

i) Between Cores mm

ii) Between Cores & Inner Sheath

c) Minimum thickness of insulation at any one point (mm)

d) Extrusion Type Tripple Pressure Extruded

e) Specific insulation resistance at 90⁰ C Ohm-cm Table 1 of IS 7098-II /2011

f) Hot Set test:

a) Elongation under load (Max) % 90% Max BESCOM requirement TS Schedule-II Annexure TS-2

b) Maximum Permanent elongation after cooling (Max) % 10% Max

c) Tensile Strength at break (Min) N/mm² ………... Min Table-1 of IS 7098-II /2011

d) Elongation at break (Min) % ………….. Min

e) Shrinkage (Max) % ………….. Max

11 Insulation Screening:

a) Material Extruded Cross linked semi conducting compond As per Bescom Clause 10.4 of BESCOM TS & clause 13 of IS 7098 P-II /2011

b) Min. Thickness of extruded semi conducting layer mm 0.3mm (Min) BESCOM requirement and Clause 10.4.1 of TS

c) Metallic Part: (Material) Plain copper tape BESCOM requirement and clause 10.4.2 of TS

d) Size of copper Tape (Minimum) mm 0.045 BESCOM requirement and clause 10.4.2 of TS

e) Whether over lapping provided Min 5% of Overlaping BESCOM requirement and Clause 10.4.2 of TS

f) Short Circuit rating in 1 sec. KA Calcualtion sheet shall be enclosed

12 Inner Sheath

a) Material PVC copound Type -ST2 Clause 10.6.1 of Bescom TS. & IS 5831-1984

b) Extrusion Type Pressure Extruded

c) Thickness (Min) mm Table 5 of IS 7098-II /2011

d) Nominal Dia over Inner Sheath mm 10462(P-1)/1983 Ficticious calculation

a) Material Galvanised Steel Clause 10.7.2 of Bescom TS.

b) Type of armouring Round wire

c) Nominal Dimensionof Armour wire mm ………. Dimension and % of Tolerance IS 3975/ 1999 (RA 2004) & Tolerance shall be ± 5 %. As per Clause 10.7.2 of TS

d) Minimum Number of Armour wire ………. Numbers (Minimum) IS-7098-II/2011 & 10462(P2)/1983

e) Whether Galvanised

f) Mass of Zinc coating gm/M² Table 2 of IS-4826/1979 & IS 3975 /1999

g) Nominal Dia over Armouring mm IS-10462(P-1)/1983

h) Short Circuit rating in 1 sec KA By Formula

i) Resistivity of the Aroured wire ohm -cm (max) Clause No. 10.7.2 of BESCOM T.S. & IS 3975/ 1999 (RA 2004) Clause 8.4.1

14 Outer Sheath

a) Material Extruded PVC Compound Type ST-2 as per IS 5831-1984

b) Extrution type Extruded

c) Min. thickness of sheath mm Table 7 of IS 7098-II/2011

d) Nominal Overall diameter of cable mm IS-10462/1983 Ficticious dia

e) Tensile Strength at break N/mm²

f) Elongation at break %

h)Thermal stability test for sheath Minutes 100 minutes(Min) BESCOM Requirement 100 Minutes (Min) as per Clause No. 10.8.1 of BESCOM T.S.

15 Short circuit withstand capacity

a) Short Circuit withstand capacity KA

b) Duration of short circuit sec one

16 AC resistance per core at operating temperature ohm/km Calculation sheet shall be enclosed

17 Reactance Ohm/Km ohm/km

18 Capicitance per core μF/Km

19 Allowable maximum conductor temperature when carrying current

20 Insulation resistance at 27⁰ C ohm-cm Table 1 of IS 7098-II/2011

21 Loss tangent at Ambient Temperature at Uo Clause 20.4.2 of IS 7098-II/2011

22 Maximum cable charging current at normal operating volt A/km Calculation sheet shall be enclosed

Additional data

23 Core identification Application of coloured stripes Red, Yellow & Blue IS-10418/1982

24 Standard Packing Length and Tolerance Mtrs 250/500 Mtrs Clause No. 13.2.4 of BESCOM T.S.

25 Scheme of identification of the cable Manufacturer’s name or trade mark, voltage grade, year of manufacture and the letters “BESCOM". The identification shall repeat every 300/350 mm along with length of the cable. Clause 21.1 of IS 7098-II/2011

General Technical Parameters

Sl. No. Particulars unit HT UG Cable

a) Name of manufacturer

b) Place of manufacture

f) Hot Set test:

a) Elongation under load % ……….. Max

b) Maximum Permanent elongation after cooling % ……………..Max

c) Tensile Strength at break N/mm² ………... Minimum

d) Elongation at break % ………….. Min

General Technical Parameters

Sl. No. Particulars unit HT UG Cable

a) Name of manufacturer

b) Place of manufacture

f) Hot Set test:

a) Elongation under load % ……….. Max

b) Maximum Permanent elongation after cooling % ……………..Max

c) Tensile Strength at break N/mm² ………... Minimum

d) Elongation at break % ………….. Min

General Technical Parameters for 1.1kV LT UG Cable

Sl. No. Particulars unit LT UG Cable Reference

a) Name of manufacturer

b) Place of manufacture

2 Cable Type A2XFY Clause No.17.3 of IS 7098-I/1988

3 Applicable specification & standards voltage Grade IS: 7098 (Part-1) /1.1kV

4 Suitable for effective Earth/Unearth system

5 Permissible voltage & frequency variation for satisfactory operation

6 Continuous current for standard conditon as per IS:

a) In air (45⁰ C) Amps IS 3961-part 6/2016

b) In Ground (30⁰ C) Amps

c) In Duct Amps

a) Material Aluminium conductor H2 OR H4 Grade As per Clause 4 of IS 8130 :2013, & BESCOM T.S. 6.01

b) Purity & Resistivity of Conductor @ 20ºC

c) Nominal cross sectional area mm²

b) Form of conductor Strandard circular, class-2 as per IS:8130 IS 8130/2013 Clause 4.2

d) Number of Strands: Nos Table-2 of IS 8130/2013

e) Diameter of Wire : mm before bunching mm However, the effective cross section should be as specified at Sl.No.7c

f)Nominal continous operation deg C

g)Short circuit condition deg C

h) Maximum DC resistance of the conductor at 20⁰ C Ω/KM ……………..(CR value only for reference) Table-2 of IS 8130 /2013

i) Sampling batch for test Appendix B of IS: 7098 (Part-1) :1988

j) Weight of the conductor Kg/Km

8 Process of Curing

a) Material XLPE BESCOM requirement, Clause 6.02 of BESCOM TS & Clause-4.1 of IS 7098 (P-I)

b) Thickness of Insulation (Nom) mm Table 3 of IS 7098-1/1988

c) Minimum thickness of insulation at any one point mm Clause 9.3 of IS 7098-1/1988

a) Elongation under load % 75% maximum BESCOM requirement as per BESCOM TS Schedule-II (Annexure TS-2) of Table-1

b) Maximum Permanent elongation after cooling % 10% maximum

c) Tensile Strength at break N/mm² …….% minimum Table-1 of IS-7098-P-I: 1988

d) Elongation at break % …….% minimum

e) Shrinkage test % …... Maximum

10 Inner Sheath

a) Material PVC compound type ST-2 Clause 9.03 of Bescom TS & IS 5831-1984

b) Whether Extruded

c) Min Thickness mm Table 5 of IS 7098-I/1988

d) Colour of Inner Sheath

a) Material Galvanized Steel Strip

b) Type of armouring IS 3975/ 1999 (RA 2004) & Tolerance shall be ± 5 %. As per clause 10.04 of BESCOM TS

c) Nominal Dimensionof Armour wire mm ………. Dimension and % of Tolerance

d) Minimum Number of Armour wire ………. Numbers (Minimum) Table-6 of IS:7098 (Part-1) & BESCOM requirement.

e) Armour Restivity (Max) ohm cm As per clause 8.4 of IS : 3975/1999

f) Mass of Zinc coating gm/M² As per Clause 8.4.1 of IS 3975/1999

12 Outer Sheath IS-4826/1979 (RA2001)

a) Material PVC Compound Type ST-2 Clause 11.01 of Bescom TS & IS 5831-1984

b) Whether Extruted

c) Min. thickness of sheath mm Table 8 of IS 7098-Part I/1988

d) Nominal Overall diameter of cable mm IS-10462/1983 Ficticious dia

e) Tensile Strength at break N/mm² As per IS 5831: 1984.

f) Elongation at break %

h)Thermal stability test for sheath Minutes BESCOM requirement 80 Minutes (Min) As per Clause 11.04 of BESCOM TS.

13 Short circuit withstand capacity

a) Short Circuit withstand capacity KA Caluculation sheet shall be furnished showing these values.

b) Duration of short circuit sec one

14 AC resistance per core at operating temperature ohm/km

15 Reactance Ohm/Km ohm/km

16 Capicitance per core μF/Km

17 Allowable maximum conductor temperature when carrying current Values are indicative

Additional data

19 Scheme of Identification

20 Standard Packing Length and Tolerance Mtrs Clause 13.02 of Bescom TS.

21 Bending Radius mm

22 Scheme of identification of the cable Manufacturer’s name or trade mark, voltage grade, year of manufacture, Project details and the letters “BESCOM”. The identification shall repeat every 300/350 mm along with length of the cable. Clause No.17 of IS 7098-P-I/1988

SCHEDULE OF GUARANTEED PARTICULARS FOR OUTDOOR RMU

Name of the Bidder

Sl. No. Description To be furnished by the bidders

1 Manufacturer’s Name and Country of origin

2 Manufacturer’s Design / Type ref/Model.

3 Material used for making the body of the RMU

4 Standards of manufacturing

5 Whether painting for RMU is done as per standards.

6 Whether the enclosure is anti-corrosive

7 Whether the RMU metal clad is provided with sufficient space for integration of

a Minimum 2 numbers load break isolators and 1 number SF6/Vacuum Circuit breaker.

b Sufficient space for inspection, testing, etc

c Earthing arrangements

d Terminal output points for future automation

e Sufficient arrangement for future extension with Load break isolators/Breakers

f Space for motorization of Load break isolators/Breakers in future.

8 Maximum withstanding ambient temperature

9 Spacing between live part to Earth

10 Whether the RMU’s are designed to withstand the in all weather conditions (Seashore area, Chemical industries polluted area)

11 Period of guarantee of the RMU

12 Over all dimensions of the RMU (L x B x H)

13 Gauge of the Material used for the fabrication of the RMU

14 Whether the RMU is manufactured as per IEC/IS standards to hold SF6 gas without leakage.

15 Whether the RMU made provision for sensors for temperature compensated pressure measurement in the relevant gas compartment to monitor the pressure of SF6 gas.

16 Whether the RMU is sealed pressure system.

17 Weight of RMU complete with operating mechanism.

18 RMUs are provided with necessary take off terminals for automation

19 Whether the gas chamber is made of stainless steel / metallised cast resin.

SCHEDULE OF GUARANTEED PARTICULARS FOR BREAKER

Name of the Bidder

Sl. No. Description To be furnished by the bidders

1 Manufacturer’s Name and Country of origin

2 Manufacturer’s Design / Type ref/Model.

3 Material used for making the body of the breaker

4 Standards of manufacturing

5 Whether the breakers are manufactured as per IEC/IS standards

6 Maximum temperature with stand of the breakers

7 (a) Spacing between live part to Earth inside the breaker

(b) Spacing between poles

8 Period of guarantee of the breaker

9 Rated frequency

10 Rated voltage

11 Highest system voltage

12 Rated current

13 Short time current rating with duration

14 Certificate or report of short circuit type test

15 Rated operating duty cycle

16 Short circuit breaking current

b Symmetrical at rated voltage

c Asymmetrical at rated voltage

17 Arcing time (At rated breaking current) in ms.

18 Opening time

19 Total break time in milli sec.

a At 10% rated interrupting capacity

b At rated interrupting capacity

20 Breaking Current

a Rated out of phase current

b Rated cable charging current

c Rated kilometric fault level

d Rated capacitor breaking current

21 Make time in ms.

22 Maximum temperature rise over ambient

a Main contacts Terminals

23 Rated restriking voltage at 100% and 50% rated capacity.

a Amplitude factor

c Natural frequency

d R.R.R.V.(Volts/micro sec.)

24 Dry 1 minute power frequency withstand test voltage

a Between line terminal and earth KV RMS

b Between terminals with breaker contacts open KV RMS

25 1.2/50 full wave impulse withstand test voltage

a Between line terminal and earth KV RMS

b Between terminals with breaker contacts open KV RMS.

26 SF6 /VCB interrupter make

27 Contact separation distance

28 Type of main contacts

29 Contact pressure

30 Contact resistance

31 Life of the interrupter (in number of operations)

32 (i)Tripping at rated current

(ii)Tripping at maximum fault current. (Allowable maximum erotion 3 mm)

(iii)Mechanical operations.

33 Details of main contacts making contact with the breaker truck with the panel

34 Control circuit voltage AC/DC.

35 Whether trip free or not

36 Whether all the interlocks provided

SCHEDULE OF GUARANTEED PARTICULARS FOR LOAD BREAK ISOLATORS & EARTHING ARRANGEMENTS

Name of the Bidder

Sl. No. Description Isolators Earthing switch for DT & Isolator

1 Manufacturer’s Name and Country of origin

2 Manufacturer’s Design / Type ref/Model.

3 Material used for making the body of the isolators .

4 Standards of manufacturing

5 Whether the isolators & earth positions are manufactured as per IEC/IS standards

6 Maximum temperature with stand of the isolators & earth switches

7 1)Spacing between live part to Earth

2)Spacing between fixed and moving contacts in the open position.

8 Period of guarantee of the isolators

9 Rated frequency

10 Rated voltage

11 Highest system voltage

12 Rated current

13 Short time current rating with duration

14 Certificate or report of short circuit type test

15 Rated operating duty cycle

16 Short circuit breaking current

17 Arcing time (At rated breaking current) in ms.

18 Opening time

19 Whether all the interlocks provided

20 Whether Sufficient arrangements are made to operate the isolators through SCADA in future, also to be ensured for provision of space for accommodation of motor in future

21 Fault passage indicator

2)Self powered Yes/No

3)Current readings

4)Fault currents

5)Phase currents

SCHEDULE OF GUARANTEED PARTICULARS FOR CURRENT TRANSFORMERS

Name of the Bidder

Sl. No. Description To be furnished by the bidders

1 Manufacturer’s Name and country of origin

2 Manufacturer’s design ref / model

3 Applicable Standards

5 Rated Primary current

6 Rated secondary current

7 Rated frequency

8 Transformation ratio

9 Number of cores

10 Rated output

11 Class of insulation

12 Class of accuracy For Protection

13 Short time current rating and its duration

14 Secondary resistance at 70 Deg °C

15 Continuous over load (percentage)

16 One minute power frequency dry withstand voltage

17 1.2/50 micro sec. impulse withstand test voltage

18 One minute power frequency withstand test voltage on secondary

19 Instrument safety factor

20 Type of primary winding

21 Literature/leaflets pamphlets about the current transformer offered

22 Period of guarantee

SHEDULE OF GUARANTEED TECHNICAL PARTICULARS FOR SELF POWERED MICRO PROCESSOR BASED NUMERICAL RELAYS

Name of the Bidder

Sl. No. Description To be furnished by the bidders

1 Manufacturer’s Name and Country of origin

2 Manufacturer’s design / Ref. Type

3 Applicable Standards

4 CurrentSetting range for

(a) Overcurrent relay IDMT

(b) Earthfault Element Definite Time

5 Whether the relay has the in-built facilities of IDMT, OL, EL

6 Details of IDMT Characteristics

7 Accuracy for different settings and limits of errors

8 Whether Alpha numeric / LED display

9 Whether compatible for 1 A CT Secondary

10 Whether draw out type

11 Types of case

13 Burden of relay

14 Maximum and Minimum, operating ambient air temp.

15 Whether technical literature pamphlets about the relay offered.

16 Period of guarantee.

17 Certificate of Proof for Electro Magnetic Interference.