ODISHA POWER TRANSMISSION CORPORATION LIMITED VOL-II (PART-II)

Transcription

1 ODISHA POWER TRANSMISSION CORPORATION LIMITED VOL-II (PART-II) Package CPC-79/ : Construction of 220kV Double Circuit Transission line on DC tower fro 400/220 KV Grid S/S, Pandiabil (Benapanjari) of PGCIL to 220/132/33KV Grid sub-station, Pratapsasan (Appx. Line Length: Ks) on Turnkey basis in e- tendering ode only. GUARANTEED TECHNICAL PARTICULARS NOTICE INVITING TENDER-NIT NO. 79 / TENDER SPECIFICATION NO Sr.G.M- CPC-TENDER- PACKAGE- 79/ /70

2 GUARANTEED TECHNICAL PARTICULARS (TO BE FILLED AND SUBMITTED BY BIDDERS WITH THE TECHNICAL BID) 2/70

3 GUARANTEED TECHNICAL PARTICULARS FOR CONDUCTOR, EARTH WIRE, INSULATORS GUARANTEED TECHNICAL PARTICULARS OF CONDUCTOR ACSR CONDUCTOR: MOOSE ZEBRA PANTHOR Sl. No. Description 1. Code Word 3/70

4 2. Maker s nae address and Country. a) Aluinu rods b) Steel Wire/rods c) Coplete conductor 3. Stranding and wire diaeter a) Aluinu. b) Steel. 4. Standard noinal copper area in sq. 5. Calculated equivalent aluinu area in sq. 6. Actual aluinu area in sq.. 7. Standard area of cross section in sq.. a) Aluinu strand b) Steel strand c) Conductor 8. Diaeter of coplete conductor in. 9. Miniu ultiate tensile stress of strand, in Kg/sq.. Before stranding and after stranding for a) Aluinu strand. b) Steel strand 10. Guaranteed ultiate tensile strength of conductor in Kg. 11. Miniu breaking load in Kg. Before stranding and after stranding for a) Aluinu strand. b) Steel strand. 4/70

5 12. Purity of aluinu rods. 13. Zinc coating of steel strand. a) Unifority of coating nuber and/duration of dips. b) Miniu weight of coating g/sq Weight in Kg. per K.M. a) Aluinu. b) Steel. c) Conductor. 15. Resistance in ohs per K. at 20 c. 16. Continuous axiu current rating of conductor in still air at 45 C abient teperature, considering tep. rise of 50 C. 17. Modulus of elasticity of : Conductor. 18. Co-efficient of linear expansion per degree centigrade of. a) Aluinu strand. b) Steel Strand. c) Conductor. 19. Percentage of carbon in steel wire. 20. Standard length of each peace in K. 21. Initial and final sags and tension and stringing charts, whether furnished. 22. Tolerance, if any on standard length. 23. Nuber of standard length in one reel. 5/70

6 24. Diensions of the reel in cs. 25. Weight of the Conductor in one reel in Kg. 26. Weight of the reel in Kg. 27. Gross weight of the reel including weight of the conductor. 28. Wheather the conductor will be anufactured as per the relevant Indian Standard Specification & as per Section-IV Technical specification of this specification. 29. Wheather the conductor will be Tested as per the relevant Indian Standard Specification & as per Section-IV Technical specification of this specification. ( Cause-12 of Section IV of Technical Specification) 29. Other particulars, if any. 6/70

7 GUARANTEED TECHNICAL PARTICULARS OF THE GALVANIZED STEEL G.I. EARTH WIRE SL DESCRIPTION No. 1. Maker s nae, address and country 2. Percentage of carbon content of the steel wire. 3. Particular of steel strands a) Nuber of strands. b) Diaeter c) Standard sectional area d) Miniu ultiate tensile strength. e) Miniu breaking land f) Final stress in steel wires 4. (a) Unifority of coating of nuber and duration of dips. M Sq. N/2 N/2 KN/2 Minutes Nuber of dips b) Miniu weight of coating GM/2 5. Standard overall diaeter of ground Sq. wire. 6. Area of cross section of ground wire. M 7. Guaranteed ultiate tensile strength of N/2 ground wire. 8. Maxiu working tension N/2 9. Resistance in ohs per KM at 20 0 C. 10. Standard length of ground wire. K. 11. Modulus of elasticity of ground wire. Kg / c2 Final Initial 12. Co-efficient of linear expansion. 13. Zinc coating :- a) Nuber of one inute dip b) Nuber of half inute dip. c) Quality of zinc 14. Weight of coating on wire 15. Process of galvanising '7/3.15 '7/3.66 7/70

8 Sl. No. GUARANTEED TECHNICAL PARTICULARS FOR INSULATORS (SEPARATE SHEETS MAY BE FILLED IN FOR EACH VOLTAGE RATING & DIFFERENT KN RATING) Description. Single Suspensi on Double suspension Single Tension Makers nae and address and country. 2. Size and designation of Ball and socket and standard to which if will confor. 3. No. of insulator discs per string. 4. Outside dia of the disc. M 5. Spacing 6. Creepage distance of the single disc 7. Electroechanical strength of single disc. Kg. 8. Withstand voltage of single disc. 8.1 Power frequency: a) Dry-kV (rs) b) Wet-kV (rs 8.2 Ipulse voltage 1.2/50 icro second. a) Positive-kV (peak) b) Negative-kV (peak) 9. Withstand Double Tension. 8/70

9 Sl. No. Description. voltage for the coplete string. 9.1 Power frequency: a) Dry-kV (rs) b) Wet kv (rs) 9.2 Lighting ipulse voltage 1.2/50 icro second. a) Positive kv(peak) b) Negative Kv(Peak) 9.3 Switching surge voltage 250/2500 icro second (for 400KV only) Single Suspensi on With and without corona ang. -do- -do- Double suspension Single Tension Double Tension. a) Dry-kV (rs) b) Wet kv (rs) 10. Flashover voltage for the disc Power frequency: a) Dry-kV (rs) b) Wet kv (rs) 10.2 Lighting ipulse voltage 1.2/50 icro second. a) Positive kv(peak) b) Negative Kv(Peak) 11. Flashover 9/70

10 Sl. No. Description. voltage for the coplete string Power frequency: a) Dry-kV (rs) b) Wet kv (rs) 11.2 Lighting ipulse voltage 1.2/50 icro second. a) Positive kv(peak) b) Negative Kv(Peak) Single Suspensi on With and without corona ring. Double suspension Single Tension Double Tension. GUARANTEED TECHNICAL PARTICULARS FOR 10/70

11 TRANSMISSION LINE : 400/220/132 KV GUARANTED TECHNICAL PARTICULARS TO BE FIILED BY THE BIDDERS SCHEDULE : B Manufacturers And Place Of Manufacture, Testing And Inspection (To be filled up by Bidder) Ite Manufacturer Place of anufacture Place of testing and inspection Line conductors (ACSR) : SUPPLIED BY THE EMPLOYER Earthwire (galvanised steel) : Steel billets Drawing steel wires Stranding coplete conductors Insulator units HV testing laboratory - - Insulator set fittings Earthwire fittings 11/70

12 Conductor joints Conductor spacers/spacer dapers Vibration dapers (for earthwires and conductors) Steel towers : Design Steel billets, etc. Steel sections Fabrication Galvanising Check assebly Tower tests - - Bolts and nuts Tower fittings Earthing aterials SCHEDULE : C General Technical Particulars And Guarantees (Paraeters considered and guaranteed by the Bidder for the purpose of this Contract. The data filled in shall for the part of the Contract, in case of Award and shall be binding on the Contractor ) C. 1 - Span Lengths (To be filled up by the Bidder ) 132kV 220kV 400kV Noral span Tower design spans: Wind spans: Suspension towers Tension towers Maxiu weight spans: Suspension towers Tension towers 12/70

13 Miniu weight spans: Suspension towers Tension towers (uplift net) C. 2 - Line Conductor : 132 kv Construction (To be filled up by the Bidder ) Coplete line conductor: Actual area (total) per single conductor 2 Nuber of conductors per phase Horizontal distance between conductor centres of one phase Each single conductor: ACSR conductor of code nae IEC STANDARD No INDIAN STANDARD No Material of conductor Nuber and diaeter of wires: Aluiniu No./ Total area of conductor 2 Overall diaeter of stranded conductor Mass of conductor per kiloetre Ultiate strength of conductor Maxiu tension of conductor at 5 C and 36% full wind pressure kg Maxiu tension of conductor at 32 C with full wind pressure 13/70

14 Maxiu tension of conductor in still air at iniu teperature of 5 C Assued equivalent odulus of elasticity of conductor N/ 2 Assued equivalent coefficient of linear expansion of conductor per C C. 2 - Line Conductor : 132 kv Construction (Continued) Vibration daping syste: *Maxiu span for: One vibration daper at each end of span Two vibration dapers at each end of span Three vibration dapers at each end of span Diensions fro clap outh to vibration daper attachent: First daper Second daper when required Third daper when required * Delete as appropriate and fill in details for selected daping syste (After placeent of order, the Contractor has to carry-out vibration analysis and furnish a detailed vibration daper placeent chart, as has been specified at Clause No , for the approval of the Project Manager. ) 14/70

15 C. 3 - Line Conductor : 220 kv Construction Coplete line conductor: Actual area (total) per single conductor 2 Nuber of conductors per phase Horizontal distance between conductor centres of one phase Each single conductor: ACSR conductor of code nae IEC STANDARD No INDIAN STANDARD No Material of conductor Nuber and diaeter of wires: Aluiniu No./ Total area of conductor 2 Overall diaeter of stranded conductor Mass of conductor per kiloetre Ultiate strength of conductor Maxiu tension of conductor at 5 C and 36% full wind Maxiu tension of conductor at 32 C with full wind Maxiu tension of conductor in still air at iniu teperature of 5 C kg Assued equivalent odulus of elasticity of conductor N/ 2 Assued equivalent coefficient of linear expansion of conductor per C 15/70

16 C. 3 - Line Conductor : 220 kv Construction (Continued) Vibration daping syste: *Maxiu span for: One vibration daper at each end of span Two vibration dapers at each end of span Three vibration dapers at each end of span Diensions fro clap outh to vibration daper attachent: First daper Second daper when required Third daper when required * Delete as appropriate and fill in details for selected daping syste (After placeent of order, the Contractor has to carry-out vibration analysis and furnish a detailed vibration daper placeent chart, as has been specified at Clause No , for the approval of the Project Manager. ) C. 4 - Line Conductor : 400 kv Construction Coplete line conductor: Actual area (total) per single conductor 2 Nuber of conductors per phase Horizontal distance between conductor centres of one phase Each single conductor: ACSR conductor of code nae IEC STANDARD No INDIAN STANDARD No Material of conductor 16/70

17 Nuber and diaeter of wires: Aluiniu. No./ Total area of conductor 2 Overall diaeter of stranded conductor Mass of conductor per kiloetre Ultiate strength of conductor Maxiu tension of conductor at 5 C and 36% full wind Maxiu tension of conductor at 32 C with full wind Maxiu tension of conductor in still air at iniu teperature of 5 C kg Assued equivalent odulus of elasticity of conductor N/ 2 Assued equivalent coefficient of linear expansion of conductor per C C. 4 - Line Conductor : 400 kv Construction (Continued) Vibration daping syste and Spacing syste: *Maxiu span for: One vibration daper at each end of span Two vibration dapers at each end of span Three vibration dapers at each end of span Diensions fro clap outh to vibration daper attachent: First daper Second daper when required Third daper when required 17/70

18 Mean sub span for spacers If spacer dapers are to be offered: Mean sub span for spacer dapers * Delete as appropriate and fill in details for selected daping syste (After placeent of order, the Contractor has to carry-out vibration analysis and furnish a detailed vibration daper placeent chart, as has been specified at Clause No , for the approval of the Project Manager. Also,for spacer and spacer daper the Contractor shall furnish placeent chart, for the approval of the Project Manger, as per the Clause No and respectively. ) C. 5 - Earth Wire : 132 kv and 220 kv Constructions Coplete earth conductor: GSW Appropriate Indian Standard No Appropriate IEC Standard No Material of conductor Nuber and diaeter of wires No./ Overall diaeter of conductor Mass of conductor per kiloetre kg Ultiate strength of conductor Lay length Direction of the lay of the outer layer Cheical coposition of the steel wire Carbon Manganese Phosphorous Sulphur Silicon Purity of Zinc for galvanising % 18/70

19 Steel strands after galvanising Diaeter Miniu breaking load of one strand Galvanising % a) Miniu weight of Zinc coating per sq.. of the uncoated wire surface after galvanising kn gs C. 5 - Earth Wire : 132 kv and 220 kv Constructions (Continued) GSW b) Miniu no. of one inute dips that the galvanised strand can withstand after stranding in Standard Preece Test Maxiu tension at 5 C and 36% full wind Maxiu tension at 32 C with full wind Maxiu tension of conductor in still air at 5 C Assued equivalent odulus of elasticity of Conductor Nos. hbar Assued equivalent coefficient of linear expansion of conductor per C Maxiu length of conductor on dru # D.C. resistance at 20 o C k ohs/k Maxiu span for: One vibration daper at each end of span Two vibration dapers at each end of span Three vibration dapers at each end of span Diensions fro clap outh to vibration daper attachent First daper Second daper when required 19/70

20 Third daper when required # It is peritted to supply two lengths of 2 ks each, in a single dru. (After placeent of order, the Contractor has to carry-out vibration analysis and furnish a detailed vibration daper placeent chart, as has been specified at Clause No. 3.3, for the approval of the Project Manager. ) C. 6 - Earth Wire : 400 kv Construction Coplete earth conductor: GSW Appropriate Indian Standard No Appropriate IEC Standard No Material of conductor Nuber and diaeter of wires No./ Overall diaeter of conductor Mass of conductor per kiloetre kg Ultiate strength of conductor Lay length Cheical coposition of the steel wire % Carbon Manganese Phosphorous Sulphur Silicon Purity of Zinc for galvanising % Steel strands after galvanising Diaeter Miniu breaking load of one strand kn Galvanising 20/70

21 a) Miniu weight of Zinc coating per sq.. of the uncoated wire surface after galvanising gs b) Miniu no. of one inute dips that the galvanised strand can withstand, after stranding in Standard Preece Test. C. 6 - Earth Wire : 400 kv Construction (Continued) GSW Maxiu tension at 5 C and 36% full wind pressure Maxiu tension at 32 C with full wind pressure Maxiu tension of conductor in still air at 5 C Assued equivalent odulus of elasticity of Conductor hbar Assued equivalent coefficient of linear expansion of conductor C Maxiu length of conductor on dru # D.C. resistance of the coplete earthwire at 20 O C k ohs/k. Direction of lay of the outer layer Maxiu span for: One vibration daper at each end of span Two vibration dapers at each end of span Three vibration dapers at each end of span Diensions fro clap outh to vibration daper attachent First daper Second daper when required Third daper when required # It is peritted to supply two lengths of 2ks each, in a single dru. (After placeent of order, the Contractor has to carry-out vibration analysis and furnish a detailed vibration daper placeent chart, as has been specified at Clause No. 3.3, for the approval of the Project Manager.) C. 7 - Earthwire Fittings and Accessories 21/70

22 GSW:7/3.15 GSW:7/3.66 Suspension Claps Total drop Weight of the assebly Breaking load Slipping strength Tightening torque kg kn kn kn Galvanising a) Miniu weight of Zinc coating per Sq.. of uncoated surface gs. /sq. b) No. of one inute dips all the galvanised parts can withstand in Standard Preece test c) Purity of Zinc used for galvanising % Tension Claps Total weight of the assebly Weight of the steel parts Weight of the Aluiniu encasing Slipping strength of the clap Miniu breaking load of the assebly Copression pressure a) Steel sleeve b) Aluiniu encasing Inside diaeter ( Before copression ) a) Steel sleeve b) Aluiniu encasing kg kg kg kn kn Tonn e 22/70

23 C. 7 - Earthwire Fittings and Accessories (continued ) GSW:7/3.15 GSW:7/3.66 Outside diension of the steel sleeve a) Before copression b) After copression i) Corner to corner ii) Surface to surface Outside diaeter of the Aluiniu encasing (Before copression ) Outside diension of the clap after copression of the Aluiniu encasing Length of the steel sleeve a) Before copression b) After copression Final diension of the clap after copression with Aluiniu encasing Brinnel hardness no. of the steel sleeve (range) Resistance of the copleted tension clap Galvanising : a) Miniu weight of Zinc coating per Sq.. of uncoated surface oh s gs. /sq. b) No. of one inute dips all the galvanised parts can withstand in Standard Preece test c) purity of Zinc used for galvanising % Mid-span copression joints for earthwire Total weight of the joints Weight of the steel sleeve Weight of the aluiniu sleeve kg kg kg 23/70

24 C. 7 - Earthwire Fittings and Accessories (continued ) GSW:7/3.15 GSW:7/3.66 Inside diaeter before copression a) Steel sleeve b) Aluiniu encasing Outside diaeter before copression a) Steel sleeve b) Aluiniu encasing Outside diensions of the joint after copression a) Steel sleeve i) Corner to corner ii) Surface to surface b) With aluiniu encasing Length of the steel sleeve a) Before copression b) After copression Final length of the joint after copression with aluiniu encasing Copression pressure Slipping strength Resistance of the copleted joint Galvanising : a) Miniu weight of Zinc coating per Sq.. of uncoated surface Tonn e kn oh s gs. /sq. b) No. of one inute dips all the galvanised parts can withstand in Standard Preece test c) Purity of Zinc for galvanizing % Flexible copper bonds Resistance of the Cu-bond Total weight of the Cu-bonds Slipping strength oh s kg kn 24/70

25 C. 8 - Conductor(ACSR) Fittings and Accessories Mid-span copression joints for Conductors Weight of the joints Slipping strength Resistance of the copleted joints PANTHER ZEBRA MOOSE kgs kn ohs Material of the joints (specify alloy type and its aluiniu contents ) Before copression dia. of sleeve a) Inner diaeter b) Outer diaeter Diensions after copression a) Corner to corner b) Surface to surface Length of the sleeve a) Before copression b) After copression Copression pressure Tonne Whether designed for interittent or continuous copression Miniu corona extinction voltage under dry conditions Radio interference voltage under conditions kv Micro Volts 25/70

26 26/70

27 C. 8 - Conductor(ACSR) Fittings and Accessories (continued ) Repair sleeve for conductors Weight of the sleeve Before copression dia. of sleeve PANTHER ZEBRA MOOSE kgs a) Inner diaeter b) Outer diaeter Diensions after copression a) Corner to corner b) Surface to surface Length of the sleeve a) Before copression b) After copression Copression pressure Miniu corona extinction voltage under dry conditions Radio interference voltage under conditions Tonne kv Micro Volts T-connector (only for ACSR MOOSE) Weight of the T-connector Axial tensile strength of the welded portion of the T-connector Breaking strength of the T-connector Resistance of the copleted T- connection kgs kn kn ohs C. 8 - Conductor(ACSR) Fittings and Accessories (continued ) PANTHER ZEBRA MOOSE Before copression dia. of the T- connector 27/70

28 a) Inner diaeter b) Outer diaeter Diensions after copression a) Corner to corner b) Surface to surface Length of the T-connector a) Before copression b) After copression Copression pressure Miniu corona extinction voltage under dry conditions Radio interference voltage under conditions Tonne kv Micro Volts 28/70

29 C. 9 - Vibration Daper For Conductor and Earthwire ( To be copleted by the Bidder ) Vibration Dapers for ACSR PANTHER Total weight of the daper kgs Weight of each daper ass kgs Left Right Resonance frequencies 1) First frequency Hz 2) Second frequency Hz Diension of each daper ass Material of : 1) Daper ass 2) Messenger cable No. of strands in essenger cable Lay ratio of the essenger cable strands Min. tensile strength of essenger cable Mass pull-off strength Claping torque Slipping strength of the daper clap kg/sq.. kn kg.- kn 1) Before fatigue test 2) After fatigue test Magnetic power loss per vibration daper Min. corona extinction voltage under dry conditions Radio interference voltage under dry conditions at 1MHz, at 105 kv Percentage variation in reactance after fatigue test in coparision with that before the fatigue test Percentage variation in power dissipation after fatigue test in coparision with that before the fatigue test Watts kv Micro Volts % % 29/70

30 C. 9 - Vibration Daper For Conductor and Earthwire (Continued ) ( To be copleted by the Bidder ) Vibration Dapers for ACSR PANTHER Galvanising of ferrous parts (if any ) 1) Miniu weight of Zinc coating per Sq.. of the uncoated surface 2) Miniu No. of one inute dips the ferrous parts can withstand in the Standard Preece Test g/sq. Nos. 3) Purity of Zinc used for galvanizing % Vibration Dapers for ACSR ZEBRA Total weight of the daper kgs Weight of each daper ass kgs Left Right Resonance frequencies 1) First frequency Hz 2) Second frequency Hz Diension of each daper ass Material of : 1) Daper ass 2) Messenger cable No. of strands in essenger cable Lay ratio of the essenger cable strands Min. tensile strength of essenger cable Mass pull-off strength Claping torque Slipping strength of the daper clap kg/sq.. kn kg.- kn 1) Before fatigue test 2) After fatigue test 30/70

31 C. 9 - Vibration Daper For Conductor and Earthwire (Continued ) ( To be copleted by the Bidder ) Vibration Dapers for ACSR ZEBRA Magnetic power loss per vibration daper Min. corona extinction voltage under dry conditions Radio interference voltage under dry conditions at 1MHz, at 154 kv Percentage variation in reactance after fatigue test in coparision with that before the fatigue test Percentage variation in power dissipation after fatigue test in coparision with that before the fatigue test Watts kv Micro Volts % % Galvanising of ferrous parts (if any ) 1) Miniu weight of Zinc coating per Sq.. of the uncoated surface g/sq. 2) Miniu No. of one inute dips the Nos. ferrous parts can withstand in the Standard Preece Test 3) Purity of Zinc used for galvanizing % Vibration Dapers for ACSR MOOSE Total weight of the daper kgs Weight of each daper ass kgs Left Right Resonance frequencies 1) First frequency Hz 2) Second frequency Hz Diension of each daper ass Material of : 1) Daper ass 2) Messenger cable C. 9 - Vibration Daper For Conductor and Earthwire (Continued ) ( To be copleted by the Bidder ) 31/70

32 Vibration Dapers for ACSR MOOSE No. of strands in essenger cable Lay ratio of the essenger cable strands Min. tensile strength of essenger cable Mass pull-off strength Claping torque Slipping strength of the daper clap kg/sq.. kn kg.- kn 1) Before fatigue test 2) After fatigue test Magnetic power loss per vibration daper Min. corona extinction voltage under dry conditions Radio interference voltage under dry conditions at 1MHz, at 305 kv Percentage variation in reactance after fatigue test in coparision with that before the fatigue test Percentage variation in power dissipation after fatigue test in coparision with that before the fatigue test Watts kv Micro Volts % % Galvanising of ferrous parts (if any ) 1) Miniu weight of Zinc coating per Sq.. of the uncoated surface 2) Miniu No. of one inute dips the ferrous parts can withstand in the Standard Preece Test g/sq. Nos. 3) Purity of Zinc used for galvanizing % C. 9 - Vibration Daper For Conductor and Earthwire (Continued ) ( To be copleted by the Bidder ) Vibration Dapers for 7/3.15 Earthwire Total weight of the daper kgs Left Right 32/70

33 Weight of each daper ass kgs Resonance frequencies 1) First frequency Hz 2) Second frequency Hz Diension of each daper ass Material of : 1) Daper ass 2) Messenger cable No. of strands in essenger cable Lay ratio of the essenger cable strands Min. tensile strength of essenger cable Mass pull-off strength Claping torque Slipping strength of the daper clap kg/sq.. kn kg.- kn 1) Before fatigue test 2) After fatigue test Percentage variation in reactance after fatigue test in coparision with that before the fatigue test Percentage variation in power dissipation after fatigue test in coparision with that before the fatigue test % % C. 9 - Vibration Daper For Conductor and Earthwire (Continued ) ( To be copleted by the Bidder ) Vibration Dapers for 7/3.15 Earthwire Galvanising of ferrous parts (if any ) 1) Miniu weight of Zinc coating per Sq.. of the uncoated surface 2) Miniu No. of one inute dips the ferrous parts can withstand in the Standard Preece Test g/sq. Nos. 33/70

34 3) Purity of Zinc used for galvanizing % Vibration Dapers for 7/3.66 Earthwire Total weight of the daper kgs Weight of each daper ass kgs Left Right Resonance frequencies 1) First frequency Hz 2) Second frequency Hz Diension of each daper ass Material of : 1) Daper ass 2) Messenger cable No. of strands in essenger cable Lay ratio of the essenger cable strands Min. tensile strength of essenger cable Mass pull-off strength Claping torque Slipping strength of the daper clap kg/sq.. kn kg.- kn 1) Before fatigue test 2) After fatigue test C. 9 - Vibration Daper For Conductor and Earthwire (Continued ) ( To be copleted by the Bidder ) Vibration Dapers for 7/3.66 Earthwire Percentage variation in reactance after fatigue test in coparision with that before the fatigue test Percentage variation in power dissipation after fatigue test in coparision with that before the % % 34/70

35 fatigue test Galvanising of ferrous parts (if any ) 1) Miniu weight of Zinc coating per Sq.. of the uncoated surface g/sq. 2) Miniu No. of one inute dips the Nos. ferrous parts can withstand in the Standard Preece Test 3) Purity of Zinc used for galvanizing % C Bundle Spacers For 400kV Line Conductors Material of coponent parts(indicate type of alloy) 1) Insert 2) Main body 3) Retaining rods ( if any ) Manufacturing process for 1) Insert 2) Main body 3) Retaining rods ( if any ) Retaining rods (if used ) 1) Type of alloy used 2) No. of retaining rods used for each spacer 3) Diaeter of the rod 4) Length of the rod 5) Total weight of one set of the rods kgs Elatoer 1) Supplier 2) Type 3) Moulded on the insert or not 4) Shore hardness 5) Thickness on the insert 6) Teperature for which designed o C Miniu strength of the spacer 1) Copressive load kn 35/70

36 2) Tensile load kn Weight of the spacer Designed claping torque (if applicable ) kgs kg- Slipping strength of spacer clap 1) Before vibration test kn 2) After vibration test kn C Bundle Spacers For 400kV Line Conductors (Continued ) Magnetic power loss per spacer Watts Galvanising of ferrous parts (if any ) 1) Miniu weight of Zinc coating per Sq.. of the uncoated surface 2) Miniu No. of one inute dips the ferrous parts can withstand in the Standard Preece Test g/sq. Nos. 3) Purity of Zinc used for galvanising % Min. corona extinction voltage under dry conditions kv Radio interference voltage under dry conditions Micro Volts Electrical resistance of the elastoer cushioned spacer (specify the range ) ohs C.11 - Bundle Spacers For Jupers Of 400kV Lines Material of coponent parts (indicate type of alloy) 1) Insert 2) Main body Manufacturing process for 1) Insert 2) Main body 36/70

37 Elatoer 1) Supplier 2) Type 3) Moulded on the insert or not 4) Shore hardness 5) Thickness on the insert 6) Teperature for which designed o C Miniu strength of the spacer for jupers 1) Copressive load kn 2) Tensile load kn Weight of the spacer for jupers Designed claping torque for spacer for jupers Slipping strength of spacer clap for jupers Magnetic power loss per spacer for jupers Galvanising of ferrous parts (if any ) 1) Miniu weight of Zinc coating per Sq.. of the uncoated surface 2) Miniu No. of one inute dips the ferrous parts can withstand in the Standard Preece Test kgs kg- kn Watts g/sq. Nos. 3) Purity of Zinc used for galvanising % Min. corona extinction voltage under dry conditions Radio interference voltage under dry conditions Electrical resistance of the elastoer cushioned spacer for jupers (specify the range ) kv MicroVolt ohs C.12 - Spacer Dapers For 400kV Line Conductors Material of coponent parts (indicate type of alloy / rubber coponent) 1) Insert 2) Main body 3) Retaining rods ( if any ) 4) Daping ball Manufacturing process for 37/70

38 1) Insert 2) Main body 3) Retaining rods ( if any ) 4) Daping ball Retaining rods (if used ) 1) Type of alloy used 2) No. of retaining rods used for each unit 3) Diaeter of the rod 4) Length of the rod 5) Total weight of one set of the rods kgs Elatoer 1) Supplier 2) Type 3) Moulded on the insert or not 4) Shore hardness 5) Thickness on the insert 6) Teperature for which designed o C Miniu strength of the spacer daper 1) Copressive load kn 2) Tensile load kn C.12 - Spacer Dapers For 400kV Line Conductors ( Continued ) Weight of the spacer daper Designed claping torque (if applicable ) kgs kg- Slipping strength of spacer daper clap 1) Before vibration test kn 2) After vibration test kn 38/70

39 Galvanising of ferrous parts (if any ) 1) Miniu weight of Zinc coating per Sq.. of the uncoated surface 2) Miniu No. of one inute dips the ferrous parts can withstand in the Standard Preece Test g/sq. Nos. 3) Purity of Zinc used for galvanising % Min. corona extinction voltage under dry conditions kv Radio interference voltage under dry conditions Micro Volts Magnetic power loss per spacer daper Watts Electrical resistance of the elastoer cushioned spacer daper (specify the range ) ohs C.13 - Disc Insulator s ( Standard Type ) 70kN 90kN 120kN 160kN Weight of the single disc unit Size and designation of the ball pin shank Diaeter of the disc Tolerance on the diaeter Ball to ball spacing between disc Tolerance on ball to ball spacing Miniu creepage distance of a single disc Positive tolerance on the iniu creepage distance kg +/- +/- + Shell aterial ( Glass/Porcelain ) Power frequency flashover voltage (rs) of single disc unit 1) Dry kv 39/70

40 2) Wet kv Power frequency withstand voltage (rs) of single disc unit 1) Dry kv 2) Wet kv Power frequency puncture voltage kv (rs) of single disc unit Ipulse flashover voltage ( peak ) of single disc unit ( dry ) 1) Positive 2) Negative Ipulse withstand voltage ( peak ) of single disc unit ( dry ) 1) Positive 2) Negative C.13 - Disc Insulator s ( Standard Type ) ( Continued ) 70kN 90kN 120kN 160kN Steepness of the ipulse voltage which the disc unit can withstand in Steep Wave Front Test kv per icro sec. Corona extinction voltage ( rs ) under dry condition, for single unit Maxiu RIV at 1 MHz and at Micro 10 kv (rs) for single unit Volts. Purity of Zinc used for galvanising % No. of dips in Standard Preece Test 1) Cap socket 2) Ball pin Axial and radial run-out (According to IEC ) 1) As per pointer A 2) As per pointer B C.13A - Coposite Insulator s ( Standard Type ) 40/70

41 70kN 90kN 120kN 160kN Weight of the single insulatort unit Size and designation of the ball pin shank / clevis and tongue Diaeter of (along with tolerance) 1) central core without housing sleeve cover kg 2) central core with housing sleeve cover 3) weather shed Length of single insulator unit Tolerance on unit insulator length Miniu creepage distance of a single insulator unit Positive tolerance on the iniu creepage distance +/- + Core aterial Shed aterial Power frequency flashover voltage (rs) of single disc unit 1) Dry kv 2) Wet kv Power frequency withstand voltage (rs) of single disc unit 1) Dry kv 2) Wet kv C.13A - Coposite Insulator s ( Standard Type ) ( Continued ) Ipulse flashover voltage ( peak ) of single disc unit ( dry ) 1) Positive 2) Negative 70kN 90kN 120kN 160kN 41/70

42 Ipulse withstand voltage ( peak ) of single disc unit ( dry ) 1) Positive 2) Negative Steepness of the ipulse voltage which the disc unit can withstand in Steep Wave Front Test kv per icro sec. Corona extinction voltage ( rs ) under dry condition, for single unit Maxiu RIV at 1 MHz and at Micro 10 kv (rs) for single unit Volts. Purity of Zinc used for galvanising % No. of dips in Standard Preece Test 1) Cap socket 2) Ball pin Note : Any other paraeters which Bidder feels are necessary to define the offered coposite insulator unit, shall be indicated and guaranteed in the above forat. C.14 - Disc Insulator s ( Anti-fog Type ) 70kN 90kN 120kN 160kN Weight of the single disc unit Size and designation of the ball pin shank Diaeter of the disc Tolerance on the diaeter Ball to ball spacing between disc Tolerance on ball to ball spacing Miniu creepage distance of a single disc Positive tolerance on the iniu creepage distance kg +/- +/- + Shell aterial ( Glass/Porcelain ) 42/70

43 Power frequency flashover voltage (rs ) of single disc unit 1) Dry kv 2) Wet kv Power frequency withstand voltage (rs ) of single disc unit 1) Dry kv 2) Wet kv Power frequency puncture voltage (rs) of single disc unit kv Ipulse flashover voltage ( peak ) of single disc unit ( dry ) 1) Positive 2) Negative Ipulse withstand voltage ( peak ) of single disc unit ( dry ) 1) Positive 2) Negative C.14 - Disc Insulator s ( Anti-fog Type ) ( Continued ) 70kN 90kN 120kN 160kN Steepness of the ipulse voltage which the disc unit can withstand in Steep Wave Front Test kv per icro sec. Corona extinction voltage ( rs ) under dry condition, for single unit Maxiu RIV at 1 MHz and at Micro 10 kv (rs) for single unit Volts. Purity of Zinc used for galvanising % Purity of Zinc used for sleeve % No. of dips in Standard Preece Test 1) Cap socket 43/70

44 2) Ball pin Axial and radial run-out (According to IEC ) 1) As per pointer A 2) As per pointer B C.14A - Coposite Insulator s ( Anti-fog Type ) 70kN 90kN 120kN 160kN Weight of the single insulatort unit Size and designation of the ball pin shank / clevis and tongue Diaeter of (along with tolerance) 1) central core without housing sleeve cover kg 2) central core with housing sleeve cover 3) weather shed Length of single insulator unit Tolerance on unit insulator length Miniu creepage distance of a single insulator unit Positive tolerance on the iniu creepage distance +/- + Core aterial Shed aterial Power frequency flashover voltage (rs) of single disc unit 1) Dry kv 2) Wet kv Power frequency withstand voltage (rs) of single disc unit 1) Dry kv 44/70

45 2) Wet kv Ipulse flashover voltage ( peak ) of single disc unit ( dry ) 1) Positive 2) Negative C.14A - Coposite Insulator s ( Anti-fog Type ) ( Continued ) Ipulse withstand voltage ( peak ) of single disc unit ( dry ) 1) Positive 2) Negative 70kN 90kN 120kN 160kN Steepness of the ipulse voltage which the disc unit can withstand in Steep Wave Front Test kv per icro sec. Corona extinction voltage ( rs ) under dry condition, for single unit Maxiu RIV at 1 MHz and at Micro 10 kv (rs) for single unit Volts. Purity of Zinc used for galvanising % No. of dips in Standard Preece Test 1) Cap socket 2) Ball pin Note : Any other paraeters which Bidder feels are necessary to define the offered coposite insulator unit, shall be indicated and guaranteed in the above forat. C Insulator (Suspension Sets For 132 kv Lines ) Single I Suspension Double I Suspension Pilot Suspensio n Power frequency withstand voltage of the string with arcing horns and corona control rings / grading rings under wet conditions kv(rs) 45/70

46 Ipulse flashover voltage (peak) under dry conditions 1) Positive kv 2) Negative kv Ipulse withstand voltage (peak) under dry conditions 1) Positive kv 2) Negative kv Salt-fog pollution withstand voltage (only for strings with anti-fog disc units) Miniu corona extinction voltage under dry conditions Radio interference voltage under dry conditions at 1MHz, at 105kV Mechanical strength of the coplete insulator string along with all hardware fittings Maxiu voltage (in percentage ) across any disc in the coplete insulator string under phase to earth voltage ( not applicable for string with coposite insulator units ) kv(rs) kv(rs) Micro Volts kn % Nuber of insulator units in each string C Insulator (Suspension Sets For 132 kv Lines ) ( Continued ) ( To be filled up by the Bidder ) Single I Suspension Double I Suspension Pilot Suspensio n Overall length of the set including clap and all fittings (specify the tolerance also ) Weight of the set, coplete with all fittings and arcing horns Weight of the counter-weights kg kg 46/70

47 Miniu arcing gap distance Maxiu agnetic power loss of the suspension assebly Slipping strength of the suspension assebly (clap torque Vs. slip curve shall be enclosed ) Watts kn Particulars of Standard/AGS prefored arour rod set for suspension assebly Standard Or, AGS Standard Or, AGS Standard Or, AGS 1) No. of rods per set No. 2) Direction of the lay 3) Overall length after fitting on the conductor 4) Actual length of each rod along its helix 5) Diaeter of each rod 6) Tolerance in a) Diaeter of each rod +/- b) Length of each rod +/- c) Difference of length +/- between the longest and shortest rod in a set 7) Type of Aluiniu alloy used for anufacture of PA rods 8) UTS of each rod kg/ 2 C Insulator (Suspension Sets For 132 kv Lines ) ( Continued ) ( To be filled up by the Bidder ) Single I Suspensio n Double I Suspension Pilot Suspensio n Particular of Elastoer (for AGS claps only ) 1) Supplier of elastoer 2) Type of elastoer 47/70

48 3) Shore hardness of elastoer 4) Teperature range for which elastoer is designed o C 5) Moulded on insert yes/no Purity of Zinc used for galvanising % Miniu No. of one inute dips the ferrous parts can withstand in Standard Preece Test Miniu weight of Zinc coating per Sq.. of the uncoated surface No. g/sq. C Insulator ( Tension Sets For 132 kv Lines ) ( To be filled up by the Bidder ) Single Tension Double Tension Power frequency withstand voltage of the string with arcing horns and corona control rings / grading rings under wet conditions kv(rs) Ipulse flashover voltage (peak) under dry conditions 1) Positive kv 2) Negative kv Ipulse withstand voltage (peak) under dry conditions 1) Positive kv 2) Negative kv Salt-fog pollution withstand voltage ( only for strings with anti-fog units ) Miniu corona extinction voltage under dry conditions Radio interference voltage under dry conditions at 1MHz, at 105kV Mechanical strength of the coplete insulator string along with all hardware fittings kv (rs) kv(rs) Micro Volts kn 48/70

49 Maxiu voltage (in percentage ) across any disc in the coplete insulator string under phase to earth voltage ( not applicable for string with coposite insulator units ) % Nuber of insulator units in each string Overall length of the set including clap and all fittings (specify the tolerance also ) C Insulator ( Tension Sets For 132 kv Lines ) ( Continued ) ( To be filled up by the Bidder ) Single Tension Double Tension Weight of the set, coplete with all fittings and arcing horns Miniu arcing gap distance Electrical resistance of the coplete tension assebly along with juper connection Slipping strength of the tension assebly kg ohs kn Purity of Zinc used for galvanising % Miniu No. of one inute dips the ferrous parts can withstand in Standard Preece Test Miniu weight of Zinc coating per Sq.. of the uncoated surface No. g/sq. C Insulator (Suspension Sets For 220 kv Lines ) ( To be filled up by the Bidder ) Single I Suspensi on Double I Suspensio n Pilot Suspension Power frequency withstand voltage of the string with arcing horns and corona control rings / grading rings under wet conditions kv(rs) Ipulse flashover voltage (peak) under dry conditions 1) Positive kv 49/70

50 2) Negative kv Ipulse withstand voltage (peak) under dry conditions 1) Positive kv 2) Negative kv Salt-fog pollution withstand voltage (only for strings with anti-fog disc units) Miniu corona extinction voltage under dry conditions Radio interference voltage under dry conditions at 1MHz, at 154kV Mechanical strength of the coplete insulator string along with all hardware fittings Maxiu voltage (in percentage ) across any disc in the coplete insulator string under phase to earth voltage ( not applicable for string with coposite insulator units ) kv(rs) kv(rs) Micro Volts kn % Nuber of insulator units in each string 50/70

51 C Insulator (Suspension Sets For 220 kv Lines ) ( Continued ) ( To be filled up by the Bidder ) Single I Suspensi on Double I Suspension Pilot Suspension Overall length of the set including clap and all fittings (specify the tolerance also ) Weight of the set, coplete with all fittings and arcing horns Weight of the counter-weights Miniu arcing gap distance Maxiu agnetic power loss of the suspension assebly Slipping strength of the suspension assebly (clap torque Vs. slip curve shall be enclosed ) kg kg Watts kn Particulars of Standard/AGS prefored arour rod set for suspension assebly Standard Or, AGS Standard Or, AGS Standard Or, AGS 1) No. of rods per set No. 2) Direction of the lay 3) Overall length after fitting on the conductor 4) Actual length of each rod along its helix 5) Diaeter of each rod 6) Tolerance in a) Diaeter of each rod +/- b) Length of each rod +/- c) Difference of length +/- between the longest and shortest rod in a set 7) Type of Aluiniu alloy used for anufacture of PA rods 8) UTS of each rod kg/ 2 51/70

52 C Insulator (Suspension Sets For 220 kv Lines ) ( Continued ) ( To be filled up by the Bidder ) Single I Suspension Double I Suspensio n Pilot Suspension Particular of Elastoer (for AGS claps only ) 1) Supplier of elastoer 2) Type of elastoer 3) Shore hardness of elastoer 4) Teperature range for which elastoer is designed o C 5) Moulded on insert yes/no Purity of Zinc used for galvanising % Miniu No. of one inute dips the ferrous parts can withstand in Standard Preece Test Miniu weight of Zinc coating per Sq.. of the uncoated surface No. g/sq. C Insulator ( Tension Sets For 220 kv Lines ) ( To be filled up by the Bidder ) Single Tension Double Tension Power frequency withstand voltage of the string with arcing horns and corona control rings / grading rings under wet conditions kv(rs) Ipulse flashover voltage (peak) under dry conditions 1) Positive kv 2) Negative kv 52/70

53 Ipulse withstand voltage (peak) under dry conditions 1) Positive kv 2) Negative kv Salt-fog pollution withstand voltage ( only for strings with anti-fog units ) Miniu corona extinction voltage under dry conditions Radio interference voltage under dry conditions at 1MHz, at 105kV Mechanical strength of the coplete insulator string along with all hardware fittings Maxiu voltage (in percentage ) across any disc in the coplete insulator string under phase to earth voltage ( not applicable for string with coposite insulator units ) kv (rs) kv(rs) Micro Volts kn % Nuber of insulator units in each string Overall length of the set including clap and all fittings (specify the tolerance also ) C Insulator ( Tension Sets For 220 kv Lines ) ( Continued ) ( To be filled up by the Bidder ) Single Tension Double Tension Weight of the set, coplete with all fittings and arcing horns Miniu arcing gap distance Electrical resistance of the coplete tension assebly along with juper connection Slipping strength of the tension assebly kg ohs kn Purity of Zinc used for galvanising % Miniu No. of one inute dips the ferrous parts can withstand in Standard Preece Test Miniu weight of Zinc coating per Sq.. of the uncoated surface No. g/sq. 53/70

54 C Insulator (Suspension Sets For 400 kv Lines ) ( To be filled up by the Bidder ) Single I Suspension Pilot Suspension Power frequency withstand voltage of the string with arcing horns and corona control rings / grading rings under wet conditions kv(rs) Switching surge withstand voltage (peak) under wet conditions 1) Positive kv 2) Negative kv Ipulse flashover voltage (peak) under dry conditions 1) Positive kv 2) Negative kv Ipulse withstand voltage (peak) under dry conditions 1) Positive kv 2) Negative kv Salt-fog pollution withstand voltage ( only for strings with anti-fog units ) Miniu corona extinction voltage under dry conditions Radio interference voltage under dry conditions at 1MHz, at 305kV Mechanical strength of the coplete insulator string along with all hardware fittings Maxiu voltage (in percentage) across any disc in the coplete insulator string under phase to earth voltage ( not applicable for string with coposite insulator units ) kv (rs) kv(rs) Micro Volts kn % Nuber of insulator units in each string C Insulator (Suspension Sets For 400 kv Lines ) ( Continued ) 54/70

55 ( To be filled up by the Bidder ) Single I Suspension Pilot Suspension Overall length of the set including clap and all fittings (specify the tolerance also ) Weight of the set, coplete with all fittings and arcing horns Weight of the counter-weights Miniu arcing gap distance Maxiu agnetic power loss of the suspension assebly Slipping strength of the suspension assebly (clap torque Vs. slip curve shall be enclosed ) kg kg Watts kn Particulars of Standard/AGS pre-fored arour rod set for suspension assebly 1) No. of rods per set No. 2) Direction of the lay 3) Overall length after fitting on the conductor 4) Actual length of each rod along its helix 5) Diaeter of each rod 6) Tolerance in a) Diaeter of each rod +/- b) Length of each rod +/- c) Difference of length +/- between the longest and shortest rod in a set 7) Type of Aluiniu alloy used for anufacture of PA rods 8) UTS of each rod kg/ 2 Standard Or, AGS Standard Or, AGS C Insulator (Suspension Sets For 400 kv Lines ) ( Continued ) ( To be filled up by the Bidder ) 55/70

56 Single I Suspension Pilot Suspension Particular of Elastoer (for AGS claps only ) 1) Supplier of elastoer 2) Type of elastoer 3) Shore hardness of elastoer 4) Teperature range for which elastoer is designed o C 5) Moulded on insert yes/no Purity of Zinc used for galvanising % Miniu No. of one inute dips the ferrous parts No. can withstand in Standard Preece Test Miniu weight of Zinc coating per Sq.. of the uncoated surface g/sq. C Insulator ( Tension Sets For 400 kv Lines ) ( To be filled up by the Bidder ) SingleTensio n (Low Duty) Double Tension Power frequency withstand voltage of the string with arcing horns and corona control rings / grading rings under wet conditions kv(rs) Switching surge withstand voltage (peak) under wet conditions 1) Positive kv 2) Negative kv Ipulse flashover voltage (peak) under dry conditions 1) Positive kv 2) Negative kv Ipulse withstand voltage (peak) under dry conditions 56/70

57 1) Positive kv 2) Negative kv Salt-fog pollution withstand voltage ( only for strings with anti-fog units ) Miniu corona extinction voltage under dry conditions Radio interference voltage under dry conditions at 1MHz, at 305kV Mechanical strength of the coplete insulator string along with all hardware fittings Maxiu voltage (in percentage ) across any disc in the coplete insulator string under phase to earth voltage ( not applicable for string with coposite insulator units ) kv (rs) kv(rs) Micro Volts kn % Nuber of insulator units in each string C Insulator ( Tension Sets For 400 kv Lines ) ( Continued ) ( To be filled up by the Bidder ) SingleTensi on (Low Duty) Double Tension Overall length of the set including clap and all fittings (specify the tolerance also ) Weight of the set, coplete with all fittings and arcing horns Miniu arcing gap distance Electrical resistance of the coplete tension assebly along with juper connection Slipping strength of the tension assebly kg ohs kn Purity of Zinc used for galvanising % Miniu No. of one inute dips the ferrous parts can withstand in Standard Preece Test Miniu weight of Zinc coating per Sq.. of the uncoated surface No. g/sq. 57/70

58 58/70

59 C Tower Design Particulars : 132 kv Construction Maxiu tension per phase, for purposes of tower design and application Suspension towers Tension towers Slack span side downleads, `per individual conductor' Maxiu uplift per phase on each crossar for purpose of tension tower design Maxiu tension of earth conductor for purpose of tower design and application: Suspension towers Tension towers Earthwire slack span side downleads Maxiu uplift of each earth conductor on the tower for purpose of tower design Miniu clearance between live etal and tower steelwork: i. with suspension insulator set swing 0 with suspension insulator set swing 15 with suspension insulator set swing 30 with suspension insulator set swing 45 with suspension insulator set swing 60 ii. with juper loop swing 0 with juper loop swing 10 with juper loop swing 20 with juper loop swing 30 with juper loop swing 40 Insulator suspension set, unobstructed transverse swing angle fro vertical Earth conductor suspension claps, unobstructed transverse swing angle fro vertical degrees degrees 59/70

60 Earth conductor axiu shielding angle fro vertical at tower attachent point over outer line conductors degrees C Tower Design Particulars : 220 kv Construction Maxiu tension per phase, for purposes of tower design and application Suspension towers Tension towers Slack span side downleads, `per individual conductor' Maxiu uplift per phase on each crossar for purpose of tension tower design Maxiu tension of earth conductor for purpose of tower design and application: Suspension towers Tension towers Earthwire slack span side downleads Maxiu uplift of each earth conductor on the tower for purpose of tower design Miniu clearance between live etal and tower steelwork: i. with suspension insulator set swing 0 with suspension insulator set swing 15 with suspension insulator set swing 30 with suspension insulator set swing 45 with suspension insulator set swing 60 ii. with juper loop swing 0 with juper loop swing 10 with juper loop swing 20 with juper loop swing 30 with juper loop swing 40 60/70

61 Insulator suspension set, unobstructed transverse swing angle fro vertical Earth conductor suspension claps, unobstructed transverse swing angle fro vertical degree s degree s Earth conductor axiu shielding angle fro vertical at degree s tower attachent point over outer line conductors C Tower Design Particulars : 400 kv Construction Maxiu tension per phase, for purposes of tower design and application Suspension towers Tension towers Slack span side downleads, `per individual conductor' Maxiu uplift per phase on each crossar for purpose of tension tower design Maxiu tension of earth conductor for purpose of tower design and application: Suspension towers Tension towers Earthwire slack span side downleads Maxiu uplift of each earth conductor on the tower for purpose of tower design Miniu clearance between live etal and tower steelwork: i. with suspension insulator set swing 0 with suspension insulator set swing 15 with suspension insulator set swing 30 with suspension insulator set swing 45 with suspension insulator set swing 60 ii. with juper loop swing 0 with juper loop swing 10 with juper loop swing 20 with juper loop swing 30 61/70