SPECIFICATION FOR STOCKBRIDGE TYPE VIBRATION DAMPERS FOR DISTRIBUTION AND TRANSMISSION OVERHEAD LINES

Transcription

1 For stockbridge type vibration dampers for Page no. : 1 of 22 SPECIFICATION FOR STOCKBRIDGE TYPE VIBRATION DAMPERS FOR DISTRIBUTION AND TRANSMISSION OVERHEAD LINES Prepared by: Eng. N.Mizrachi (חתום) Checked by: Eng.Y.Samoocha (חתום) Approved by: Eng. Y. Samoocha (חתום) 1

2 Page no. : 2 of 22 Contents: No. of para. Page No. 1. Scope 3 2. Threshold conditions 3 3. Documents for the proposal 4 4. Manufacturing standards 5 5. Technical requirements 6 6. Material Tests inspection and reports Marking Packing Quality assurance Quality control Delivery approval conditions Summary of data Appendix 1:"Statement of manufacturing experience" Appendix 2:"Obligation to submit Damping study upon award of bid" Appendix 3:"Obligation to submit type test report upon award of bid" Appendix 4:"schedule up to delivery" Revision 22 Appendices: 1. Standard specification for quality control QAPP02 Rev.4. 2

3 Page no. : 3 of SCOPE This specification covers manufacture, preserve, testing, packing and furnish of stockbridge vibration dampers to be used on AAAC, OPGW and ACSR conductors for transmission and distribution overhead lines. The purpose of the vibration damper is to reduce the effects of Aeolian vibration. The manufacturer will be responsible for design and manufacturing the specific damper according to IEC requirements. I.E.C catalogue numbers are: I.E.C. catalogue number ACSR 210/35 ST1A/AL ACSR 300/50 ST1A/AL ACSR 680/85 ST1A/AL AAAC 120 AL AAAC 185 AL AAAC 241 AL AAAC 593 AL AAAC 774 AL UPAS 362 AL59 Stockbridge damper suitable for: OPGW 118 (including protection rods) OPGW 245 (including protection rods) Installation on AGS armor rods and/or dead end set reinforcing rods for OPGW Installation on AGS armor rods and/or dead end set reinforcing rods for OPGW 245. Remarks: IEC Cat. No : the Stockbridge will be supply with protection rods. IEC Cat. No : the Stockbridge will be supply with protection rods. IEC Cat. No for OPGW 118 will be from the same manufacturer. IEC Cat. No for OPGW 245 will be from the same manufacturer. 2. THRESHOLD CONDITIONS Acc. to the attached documents of the procurement division. 3

4 Page no. : 4 of DOCUMENTS FOR THE PROPOSAL The Bidder will submit together with his offer the following documents from the manufacturer: 3.1. Valid ISO 9001 certificate, as defined in the threshold conditions Appendix 1:"statement of manufacturing experience", signed for each of the proposed item Appendix 2: "Obligation to submit damping study upon award of bid", signed for each of the proposed item Assembly drawing for each of the proposed item showing the vibration damper in at least two views, the following data shall be given on the drawing: Catalog Number Main dimensions Conductor diameter range for the damper clamp Width across flats for bolts and nuts Tolerances, Tightening torque Markings Weight Part List Materials. Coating (type and thickness). In addition for OPGW 118 & 245 (IEC catalogue number: and ) Drawing of the protection rods with the following data: Catalogue number, main dimensions (length and diameter of each rod ), marking (including identification central mark), material and no. of rods Type test reports: Bidder will submit one of the following: Type test report according to IEC (acc. to par 7 in this spec.) for each of the proposed items. Or Type test report (for one item) according to the relevant standard (and acc. to par 7 in this spec.) for similar item. And Appendix 3: "Obligation to submit type test report upon award of bid" 'signed by the bidder and the manufacturer 'for each of the proposed item. Appendix 4: "Schedule up to delivery approval", signed by the bidder and the manufacturer for each of the proposed item. "Similar" means stockbridge type vibration in the same technology but for different conductors cross section Complete and filled in summary of data (par. 13), for each of the proposed item Installation instruction for OPGW A table with quantity and in span location with a reference to the table in par 5.4 (and estimate quantity and in span location for I.E.C cat. no and ). 4

5 Page no. : 5 of 22 Remark: A manufacturer that is proposing the same item (identical) that was previously supplied to I.E.C, which I.E.C has good experience with, may ask, and I.E.C will consider, exempting from the submission of the documents in par I.E.C reserves the right to request, at its sole discretion, from the bidder to complete these documents or any other clarifications. The above mentioned documents will be in English or Hebrew. All dimensions and quantities must be in M K S (Meter, Kilogram, Second) Measurement units. Bidder which will not submit all the above will be disqualified. 4. MANUFACTURING STANDARDS The vibration dampers shall be manufactured and tested in conformance with the latest published recommendation of the following standards: IEC Requirements and tests for stockbridge type dampers. IEC Overhead linesrequirements and tests for fittings. IEC Zinccoated steel wires for stranded conductors. EN Conductors for overhead lines round wire concentric lay stranded conductors. DIN EN ISO 4017: Fasteners Hexagon head screws Product grades A and B. DIN EN ISO 4032: Hexagon regular nuts (style 1) Product grades A and B Alternative standards for DIN EN ISO 4017, DIN EN ISO 4032 should be stated by the bidder and will be considered by I.E.C. (the stated standard will be send together with the Documents for the proposal). 5

6 Page no. : 6 of TECHNICAL REQUIREMENTS 5.1. Design The damper shall be designed according to the standard IEC The vibration damper shall be designed for use on phase or earth conductors as listed in par in this spec The vibration damper shall not damage or cause corrosion to the conductor when installed or during service The vibration damper shall be of the stockbridge type only The design of the stockbridge damper shall be such as to avoid local corona formation and significant radio interference The dampers shall not contain nonmetallic materials The dampers shall be free of defects such as cracks and edges Welding will not be accepted For OPGW 118 stockbridge cat. no : The clamp will be suitable to be install on AGS armor rods or dead end set reinforcing rods: Diameter of the Armor rods of the AGS: 4.62 mm. Diameter of the Dead end set reinforcing rods: mm For OPGW 245 stockbridge cat. no : The clamp will be suitable to be install on AGS armor rods or dead end set reinforcing rods: Diameter of the Armor rods of the AGS: 6.35mm Diameter of the Dead end set reinforcing rods: mm Protection rods for I.E.C cat. No & should have different color code Environmental and conductor technical data Environmental The lines may run through either open undulating country with some trees, or mountainous country, or open desert areas: Severe atmospheric and industrial air pollution, coal, dust, sea salt. High atmospheric humidity as experienced in coastal or desert areas. Annual variation in air temperature: 10 C to 50 C. Annual mean air temperature: 25 C. Maximum relative humidity: 95%. Average relative humidity: 70%. Average ambient temperature measured over a period of 24 hours does not exceed: 35 C. Maximum difference of ambient temperature from day to night: 25 C. Long summer periods with OTCs of sunshine (1120 W / m 2 ) according to IEC Publication /95. Altitude: up to 1500m. Rapid temperature changes and humidity changes. Long summer periods without rain. Maximum wind velocity: 50 m / sec. 6

7 Page no. : 7 of Conductors Technical data for the conductors is in tables below: Conductor cross section & type Standard Construction of conductor [n o x mm] Diameter of conductor [mm] Cross section of conductor [mm 2 ] Min Breaking load [KN] Weight [kg/km] Max. ratio (tension to weight at 20 C) for protection conductors Regular suspension clamps will include rods over the wire Suspension clamps shall be AGS type or regular suspension clamps. The length of the armor rods [m] Wedgetype tension clamps shall be used On post insulatorsdistribution ties ACSR 210/35 EN x3.2 Al 7x2.49 St before creep: 2100 m after creep: 1670 m 1930 ACSR 300/50 EN x3.86 Al 7x3.0 St before creep: 2100 m after creep: 1670 m 1700 ACSR 680/85 EN x4.0 Al 19x2.4 St before creep: 2100 m after creep: 1670 m 2235 AAAC 120 EN x before creep: 1230 m after creep: 1100 m Length is 600 mm AAAC 185 EN x before creep: 2100 m after creep: 1780 m Length is 900 mm AAAC 241 SS & SS x before creep: 2100 m after creep: 1780 m

8 Page no. : 8 of 22 Conductor cross section & type Standard Construction of conductor [n o x mm] Diameter of conductor [mm] Cross section of conductor [mm 2 ] Breaking load [KN] Weight [kg/km] Max. ratio (tension to weight at 20 C) for protection conductors Suspension clamps shall be AGS type Suspension clamps shall be AGS type or regular suspension clamps. The length of the armor rods [mm] Wedgetype tension clamps shall be used Tension shall be with helical end type AAAC AL SS & SS x3.52 mm before creep: 2000 m after creep: 1780 m 2235 AAAC AL SS & SS x before creep: 2000 m after creep: 1780 m 2235 UPAS AL EN x before creep: 2000 m after creep: 1780 m 1700 OPGW 118 Specification NCS ± before creep: 2100 m after creep: 1780 m 1140 OPGW 245 Specification NCS ± before creep: 2100 m after creep: 1780 m Technical data for Warning Markers that installed on the conductors as par Diameter Weight Overall length Type Span between two adjacent Spherical warning [mm] [Kg] [mm] With heliformed assembly (included heliformed dead end) Every 40 m Without heliformed assembly Every 40 m 8

9 Page no. : 9 of Damper's location and quantities Damper inspan location and quantity in I.E.C overhead lines is acc. to the following tables: Suspension suspension Side 1 Side 2 in span location (m) Side 1 Side 2 Side 1 Side 2 Side 1 Side 2 I.E.C cat. No. of the damper Conductor size quantity ACSR A=10 A=10 A=10 A=10 distance(cm) 210/ quantity ACSR A=10 A=10 A=10 A=10 distance(cm) 300/ quantity ACSR A=60 A=60 A=60 A=60 A=60 distance(cm) 680/ quantity AAAC A=10 A=10 A=10 A=10 A=10 distance(cm) quantity AAAC A=10 A=10 A=10 A=10 A=10 distance(cm) UPAS quantity AAAC A= 40 distance(cm) 593 B=90 B= quantity AAAC A= 60 B=100 A=60 B=100 A=60 A=60 A=60 distance(cm) 774 9

10 Page no. : 10 of 22 Suspension tension side 1 side 2 In span location I.E.C cat. No. of the damper Side 1 Side 2 Side 1 Side 2 Side 1 Side 2. Conductor size quantity ACSR A1=10 A2=80 A1=10 A2=80 A1=10 distance(cm) 210/ quantity ACSR A1=10 A2=80 A1=10 A2=80 A1=10 distance(cm) 300/ quantity ACSR A1=60 A2=150 A1=60 A2=150 A1=60 distance(cm) 680/ quantity AAAC A1=10 A2=80 A1=10 A2=80 A1=10 distance(cm) quantity AAAC A1=10 A2=80 A1=10 A2=80 A1=10 distance(cm) UPAS quantity AAAC A1=40 A2= 130 A1=40 A2=130 A1=40 distance(cm) 593 B= 90 B= quantity AAAC A1=60 B=100 A2=150 B=100 A1=60 A2=150 A1=60 distance(cm)

11 Page no. : 11 of 22 tension tension side 1 side 2 In span location(m) I.E.C cat. No. of the damper Side 1 Side 2 Side 1 Side 2 Side 1 Side 2 Conductor size quantity ACSR A=80 A=80 A=80 A=80 distance(cm) 210/ quantity ACSR A=80 A=80 A=80 A=80 distance(cm) 300/ quantity ACSR A=150 A=150 A=150 A=150 A=150 distance(cm) 680/ quantity ACSR A=80 A=80 A=80 A=80 A=80 A=80 distance(cm) quantity AAAC A=80 A=80 A=80 A=80 A=80 A=80 distance(cm) UPAS quantity AAAC A=130 B=90 A=130 B=90 A=130 A=130 A=130 distance(cm) quantity AAAC A=150 A=150 A=150 A=150 A=150 distance(cm) 774 B=100 B=

12 Page no. : 12 of 22 For OPGW 118&245 suspensionsuspension I.E.C Cat no or Side 1 I.E.C Cat no or Side 2 In span location(m) I.E.C cat. No. of the damper Side 1 Side 2 Side 1 Side 2 Side 1 Side quantity or/and A=10 A=10 A=10 A=10 A=10 A=10 distance(cm) B=60 B= quantity or/and A=10 A=10 A=10 A=10 A=10 A=10 distance(cm) B=60 B=60 conductor OPGW 118 OPGW 245 suspensiontension I.E.C Cat no or Side 1 I.E.C Cat no or Side 2 In span location(m) I.E.C cat. No. of the damper Side 1 Side 2 Side 1 Side 2 Side 1 Side quantity or/and A1=10 A2=40 A1=10 A2=40 A1=10 A2=40 distance(cm) B= quantity or/and A1=10 A2=40 A1=10 A2=40 A1=10 A2=40 distance(cm) B=60 conductor OPGW 118 OPGW

13 Page no. : 13 of 22 tensiontension I.E.C Cat no or Side 1 I.E.C Cat no or Side 2 In span location(m) I.E.C cat. No. of the damper Side 1 Side 2 Side 1 Side 2 Side 1 Side quantity or/and distance(cm) quantity or/and distance(cm) conductor OPGW 118 OPGW

14 Page no. : 14 of MATERIAL 6.1. Material and surface treatments The choice of material and surface treatments shall be such that the dampers shall be resistant to atmospheric corrosion during the entire operating time Damper Clamps Damper clamps shall be manufactured from aluminum alloy. The alloy must be resistant to cracking, stress corrosion and layer corrosion Protection Against Corrosion The clamping bolts, washers and spring shall be hot dip galvanized steel acc. to ISO The messenger cable shall be coated acc. to IEC TESTS INSPECTION AND REPORTS The following tests for each item will be made in accordance with the latest published recommendations of the standard IEC 61897: 7.1. Type test Visual examination acc. to clause Verification of dimensions, materials and mass acc. to clause Corrosion protection tests acc. to clause Clamp slip test acc. to clause Clamp bolt tightening test acc. to clause Attachment of weights to messenger cable acc.to clause Attachment of clamp to messenger cable test acc.to clause Corona and radio interferences voltage (RIV) will be tested acc. to clause 7.10 (Not for AAAC 241, OPGW 245, OPGW 118 and ACSR 210/35 conductors) Damper performance tests acc. to 7.11 Variant BLaboratory tests Damper fatigue test acc. to clause 7.12 swept frequency method Sample test Visual examination acc. to clause Verification of dimensions, materials and mass acc. to clause Corrosion protection tests acc. to clause Clamp slip test acc. to clause Clamp bolt tightening test acc. to clause Attachment of weights to messenger cable acc. to clause Attachment of clamp to messenger cable test acc. to clause Damping study acc. to the data in tables on par. 5.4 for each of the proposed item, the study will: Be for suspensionsuspension, suspensiontension, tensiontension. Include data for span length greater than m and height differences. 14

15 Page no. : 15 of MARKING Each damper shall be marked in a durable and legible manner with the following: Manufacturer s name or trade mark. Conductor diameter range for the damper clamp. Quality indication on bolt. Tightening torque. For OPGW 118 & OPGW 245: Each rod set will be marked with a label the label will contain the following information: The P/N Manufacturer s name or trade mark. Conductor cross section. Identification central mark (colure code). The marking will be indelible and legible. 9. PACKING The dampers (for each type) will be supplied in wooden boxes, properly packed and lagged to prevent the dampers from possible damage during shipment and storage. Each box will contain the same quantity of items. Each packing shall be marked with: IEC order number. Manufacturer name or trade mark. Conductor diameter range for the damper clamp. Number of dampers in the package. Gross weight. IEC catalogue number. Manufacturer's part number (P/N) Remarks: 1. for cat. no and the stockbridge damper and the protection rods will be packed together. 2. The wooden box dimensions shall be 1 m x 1.2 m with access for a fork lift 10. QUALITY ASSURANCE Manufacturer s Quality Assurance Program shall meet the requirements described in ISO QUALITY CONTROL Quality control requirements will be according to I.E.C standard QAPP02 Rev.4. 15

16 Page no. : 16 of DELIVERY APPROVAL CONDITIONS The successful bidder who submitted Type test report for the proposed item will submit Damping study within one month upon award of bid. sample tests reports before the shipment of each delivery The successful bidder, who submitted Type test report for a similar item, shall submit: All the required documents for I.E.C approval and within the period of time as indicated in the attached appendix 4 "schedule up to delivery approval" Damping study as in par. 7.3 for each of the proposed item Sample tests reports will be submitted before each delivery. In order to perform the tests the bidder can receive the required Conductor from I.E.C Warehouse. (Shipping costs will be at the expense of the successful bidder). "If the contractor fails to fulfill in the above requirements, in accordance with the terms of the tender documents and/or the order/contract within the periods above, it shall constitute a substantial breach, entitling the I.E.C. to be paid liquidated damages according to Tender document, and to pursue all other remedies available under the law for a substantial breach of contract." Acceptance tests: The I.E.C. reserves the right to verify the compliance of the delivered items with this specification. Delivery which will not pass acceptance tests will be rejected. 16

17 Page no. : 17 of SUMMARY OF DATA Bidder's name: Bidder's phone no.: Bidder's fax: Bidder's Bidder's signature: Manufacturer 's name: Manufacturer's address: Manufacturing country: Manufacturer's Manufacturer's signature: (Insert all data in this column) 1. Is ISO 9001 certificate attached? [yes/no] 2. Is Appendix1, 2, 3, 4 Attached? [yes/no] 3. Is marking acc. to par 8? [yes/no] 4.Please state the manufacturing standard of the stockbridge 5. Is marking acc. to par 9? [yes/no] 6. Is installation instruction for OPGW attached? [yes/no] 7. Is type test report for propose items attached? [yes/no] IEC cat. no. Stockbridge damper suitable for: ACSR 210/ ACSR 300/ ACSR 680/ AAAC AAAC AAAC AAAC AAAC UPAS 362 Al OPGW 118 (including protection rods) OPGW 245 (including protection rods) Installation on AGS armor rods and/or dead end set reinforcing rods for OPGW 118. Installation on AGS armor rods and/or dead end set reinforcing rods for OPGW 245. (Insert all data in this column) Manufacturer P/N Manufacturing drawing no. 17

18 Page no. : 18 of APPENDIX 1: STATEMENT OF MANUFACTURING EXPERIENCE I, (enter name), hereby state the following: 1. I (enter name), am authorized to sign this statement on behalf of ("the Manufacturer") 2. I hold the position of (enter job title and description, i.e. partner, production manager, sales manager, etc.) at the Manufacturer. 3. I have been in this position since (enter date). 4. I am providing this statement with regards to I.E.C's tender number ("the Tender"). 5. (the Manufacturer) has experience in manufacturing of stockbridge type vibration dampers for the proposed item/s or similar item/s, for at least two (2) years in the last five (5) years. "Similar" means stockbridge type vibration dampers in the same technology but for different conductors cross section 6. The facts/details given in this statement have been checked and verified by me. 7. I hereby undertake to provide, upon IEC's request and at its sole discretion, any other documents (reference list, quantity, dates of supply, letter of recommendations etc.) or other Information requested for this tender for purposes of proving said experience. Signature Date 18

19 Page no. : 19 of APPENDIX 2: OBLIGATION TO SUBMIT DAMPING STUDY UPON AWARD OF BID 1. We hereby undertake to perform Damping Study required for the proposed items (as in table below), upon award of bid. 2. The Damping Study will : Be for suspensionsuspension, suspensiontension, tensiontension. Include data for span length greater than m and height differences. No. of tender: Manufacture name : Bidder name: Date: I.E.C Cat. No Manufacturer P/N No. of tender Manufacture name and signature Bidder name and signature Date 19

20 Page no. : 20 of APPENDIX 3: OBLIGATION TO SUBMIT TYPE TEST REPORT UPON AWARD OF BID 1. We hereby undertake to perform all the tests (mechanical and electrical) required for the proposed items (as in table below), upon award of bid. 2. The tests will be performed in accordance with the standards and requirements specified in paragraph 4 and 5 and 7 of this specification. 3. Test reports will be submitted as acc. to schedule in appendix 4. No. of tender: Manufacture name and signature: Bidder name and signature: Date: I.E.C Cat. No Fill in Yes/No

21 Page no. : 21 of 22 Bidder name and signature: Manufacture name and signature: Tender number: Date: 17. APPENDIX 4: SCHEDULE UP TO DELIVERY APPROVAL Remarks: 1. Starting point is the date on which a binding contractual obligation has been created, as specified in the invitation to submit proposal. 2. One month before performing the tests the contractor shall submit the final test schedule. 3. The period of time for the delivery approval from the starting point as indicated above will not take more than 6 months. Week No. STAGE Submitting of: Drawing of the proposed item and P/N. Test plan: The name of the performing laboratory and address (country, city, etc.) A list of tests and schedule. 1 Israel Electric Corp. approval of the above documents after clarifications Execution and submission of the type test 2 report and dumping study for each of the proposed item 3 Israel Electric Corp. approval of the above documents after clarifications 4 Remark : The schedule (6 months) above is for all the proposed items together 21

22 Edition no.: 3 Issued date 18/06/2018 Page no. :22 of 22 Israel Electric Corp. Ltd. Specification NCS 163 t 18. REVISIONS 1.Specification NCS 163/0 replaces and cancels JDH K 7719/5. 2.Chang in par. 3,5.3.2,6.3,10,11,12 and del requirement in prev. edition: Par :"damper clamp will be with groove" Par.:5.1.6:" damper with closed weights shall be designed to prevent water collection" 3.Del IEC Cat. no.: and ; add 4 new cat. no , , , , change in par. 1,3,5.1,5.3,8,9,16. 4.Change in all par.,add 2 stockbridge dumper for AAAC120&185,add requirement for damping study. 22