Tenders Are Invited For Supply & Delivery Of Steel Monopoles

Tenders are invited for Supply & Delivery of Steel Monopoles Payments for the tender fee should be made to any of the EEC BANK ACCOUNTS listed in the table below or any of the EEC REVENUE OFFICES. Documents should be submitted with proof of payment of E1,000.00 tender fee. The payment REFERENCE should be RFT 017 of 2024/2025. Name Bank Name Account Number Branch Code Branch Eswatini Electricity Company Standard bank 9110003236261 663164 Swa/i Plaza Eswatini Electricity Company Nedbank 020000286843 360164 Mbabane Eswatini Electricity Company First National Bank 62154679735 280164 Mbabane Tender Upload Date: Friday 3rd January 2025 10:06 am SCOPE / SPECIFICATIONS OF TENDER Bidders are required to tender for the supply and delivery of material in the below lots as per the detailed specifications. Bidders are allowed to tender for more than one (1) LOT: 5.1 Lot A ITEM MONOPOLE DISCRIPTION QUANTITY 1. Planted 66kv single circuit suspension steel monopole 37kn, 23kn tip load, 22m, comes with perching brackets 80 2. Planted 66kv double circuit suspension steel monopole 37kn, 23kn tip load, 22m, comes with perching brackets 14 3. Planted 66/11kv triple circuit suspension steel monopole 43kn, 23kn tip load, 22m, comes with perching brackets 8 4. Planted 66kv dual circuit suspension steel monopole 37kn, 23kn tip load, 22m, comes with perching brackets 22 5. Planted 66kv single circuit strain steel monopole 37kn, 23kn tip load, 23.5m, 0 - 90°, stayed strain 46 5 6. Planted 66kv single circuit strain steel monopole 37kn, 23kn tip load, 21m, 0 - 90°, stayed strain 6 7. Planted 66/11kv dual circuit strain steel monopole 43kn, 23.5m, 0 - 90°, stayed strain 22 8. Planted 66kv fsd single circuit strain steel monopole 43kn, 22m, free standing 4 9. Planted 66kv strain single circuit t2ha steel monopole 37kn, 23kn tip load, 13m, 0 - 90° 2 10. Removable steps 151 11. Factory acceptance tests 4 personnel 12. Steel monopoles bee plugs for all poles 202 POLES 13. 100g galvanise patch packets 20 14. Steel monopoles earthing strap 162 15. Delivery to Eswatini (26°0617.8"s 31°5526.6"e), tambankulu, 157km from oshoek border post. Trucks must include offloading cranes on site. 5.2 Lot B STRUCTURES ID MONOPOLE DISCRIPTION TYPE QUANTITY HEIGHT 1 14m Steel Pole 17kN Hare Suspension 53 14M 2 Double Circuit -14m Steel Pole 23kN Hare Suspension 10 14M 3 Stayed Angle - 0-90° - 14m Steel Pole 17kN Hare Strain 66 14M 4 13m H-Frame Steel Pole 17kN stayed designed to attach Transformer Terminal 7 14M 5 14m H-Frame Steel Pole 17kN designed to hold a Gang link Isolator Terminal 4 14M 6 Double Circuit Self Supporting - 0-90° - 14m Steel Pole 17kN Strain 7 14M 7 14m Steel Pole 17kN designed for Underground Terminal Structure with Fused attachments Terminal 22 14M 8 14m Steel Pole 17kN Single structure with Transformer and Combi Unit design attachment Terminal 4 14M 9 14m Steel Pole 17kN Single structure Gang link Isolator design attachment Strain 7 14M TOTAL 180 Additional Note: 1. all structures to have a lug for an ABC cable hock at 1.2 meter below the bottom conductor. 2. Structure to have Cleats for removable steps 6 3. Line T-OFF lugs on all Terminal and tension structure 4. Cap Plate and top plate with Earth wire bracket on suspensions and Cap plate and lightning spike for tension, stains to be provided. 5. All structures to have at least 700m bitumen painted area from ground level 0 TECHNICAL SPECIFICATION 6.1 Structural Steel The following standards are applicable: 1. Structural Steel [Sub-clause 3.1.1 - SANS 1200H]. 1.1. Where-ever, in sub-clause 3.1.1 (or anywhere else in SANS 1200 H), reference is made to BS 4360, the same shall be replaced with EN 10025:2004. 2. All structural steel shall consist of either hot rolled steel sections of grade 300W (as governed by EN 10025:2004) or of cold formed hollow sections complying with the requirements of SANS 1200 H. 3. SANS 10162-1:2005: The structural use of steel Part 1: Limit-states design of hot rolled steelwork. 4. SANS 10162-2:2001: The structural use of steel Part 2: Limit-states design of coldformed steelwork. 5. SANS 10162:2011: The structural use of steel Part 3: Allowable stress design steelwork. 6.2 Bolts, Nuts, Steel Crossarm and Washers All non-strain bearing metal parts shall be secured by means of bolts and nuts with minimum diameter shall be 12mm. All bolts, nuts and screw threads and galvanizing shall comply with the relevant IEC standards unless otherwise approved. Bolts and nuts shall be of steel with 7 hexagonal heads. The nuts of all bolts for attaching to the tower plates, brackets or angles supporting insulator sets or droppers to earth conductor clamps shall be locked by approved means. No screwed threads shall form part of the shearing plane between members. Unless otherwise approved, all bolts and screwed rods shall be galvanized including the threaded portions; all nuts shall be galvanized with the exception of the threads, which shall be greased. When in position all bolts or screwed rods shall project through corresponding nuts, but such projection shall not exceed the diameter of the actual bolt. Where different grades of steel are used, bolts of any given diameter and length shall be the same of steel. 7.0 DRAWINGS AND SHOP DETAILS 7.1 The drawings of the steel structures provided by the Engineer are conceptual and based on typical structures required for this project and are not intended to be design drawings. The Contractor shall base the required structures for this project on these drawings. 7.2 It is required of the Contractor to provide shop details Drawings. 7.3 The Engineer shall approve structural steel drawings before any manufacturing. 8.0 FABRICATION 8.1 Structural Hollow Sections Substitute clause 5.2.6 of SABS 1200H with the following: 1. All structural hollow sections shall be left completely open on both sides so that, during the hot-dip galvanize corrosion protection process, the hot-dip galvanize material can drain freely from such sections. During the manufacturing process, the year of manufacture as well as the manufacturers name must be imbedded onto the surface of the pole at a height of 1.5m above final ground level. 8.2 Welding 1. All welding shall be so finished off that no burring, flux trapping or porosity is evident. 2. Welding shall be so executed as to provide a smooth surface for receiving a hot dip galvanise treatment. 8.3 Test Certificates The Contractor shall supply the Engineer with the following test certificates: 1. Certificates, issued by the Contractors Quality Assurance Division, stating that all manufactured components were inspected and measured to conform to the requirements of the Drawings and Specifications, before shipment to receive Hot-dip Galvanized treatment. 2. Costs relating to inspections and issuing of certificates as described above shall be included in the unit rates for the structures. 8 9.0 CORROSION PROTECTION OF STRUCTURAL STEEL 9.1 Coating System The coating system shall be as follows: 1. Structural steel shall be Aluminium killed. Protective coating shall be a single coat of 100- micron minimum thickness Hot-dip Galvanize. No double-dipping allowed. Hot dip galvanizing shall be carried out by a SABS approved institution. Hot-dip galvanized surfaces shall be fully passivized. All reasonable care shall be taken to ensure final HDG surfaces of even color, texture and appearance. 9.2 Repair of Damaged Coatings Only special solder repair methods of SABS 1200 HC and SANS 935:2007 and as approved by the Engineer, shall be acceptable for repairing unavoidable damage to HDG coatings. The approval by the Engineer shall not relieve the Contractor of this responsibility. No drilling of coated numbers will be permitted after galvanizing treatment as specified has been completed. 9.3 Schedule Items 9.3.1 Surface Dressing and Repairs at Place of Fabrication The inspections, testing and testing documentation which shall be supplied by the Contractor and the cost of which shall be included, shall be as follows: 1. The weld inspections and certificates required in terms of sub-clause reference. 2. All testing and certificates required in terms of sub-clause 7.3.4 of SANS 1200 HC (SANS 935:2007), pertaining to compliance with specifications regarding surface preparation, procedure of application and eventual thickness, quality and integrity of the HDG coating. These tests and certificates shall likewise be performed and issued by a qualified representative of the SANS. 9.3.2 Compact Mono Poles The following standards are applicable: 1. SANS10280 Code of Practice for overhead Power Lines 2. SANS 10280 Transmission line and Line Construction. 3. SANS 10280, Loading and strength of overhead transmission lines. 4. BS EN 60652:2004, Loading tests on overhead lines tower (BS 7733) (IEC 60826). 5. SANS 10280, Code of practice for overhead power lines for conditions prevailing in South Africa. Submission Deadline: Thursday 13th February 2025 11:00 am Tender Link : https://esppra.co.sz/sppra/documents/tenders/Eswatini Electricity Company (EEC)/1735891642.pdf