Usage: | Tension Tower |
---|---|
Conductor Circuit: | Single Circuit |
Certification: | ISO, RoHS, CE |
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Item | Temperature (ºC) | Wind speed (m/s) | Ice thickness (mm) |
Max. temperature | 40 | 0 | 0 |
Mini. temperature | -40 | 0 | 0 |
Ice thickness | -5 | 10 | 10 |
Basic wind speed | -5 | 27 | 0 |
Installation condition | -15 | 10 | 0 |
Annual temperature | 5 | 0 | 0 |
Lightning overvoltage | 15 | 10 | 0 |
Operation overvoltage | 5 | 15 | 0 |
Hot-line work | 15 | 10 | 0 |
110 kV tower design criteria : type LST+0 | Data sheet | ||
Pos | Description | Unit | Minimum Data |
Note | The values of this technical data sheet prevails to all other technical specification contained in the tender document | Required Data | |
1 | General information | ||
1.1 | Tower type :Light angle tension and long span tower type LST+0 | Tension & long span tower | |
1.2 | Line angle | Degree | 0° -10° |
1.3 | Manufacturer and country of origin | Required | |
1.4 | Structural Steel according to Standard EN1005 | quality | S235/S355 |
1.5 | Section of phase conductor | mm2 | ACSR 240/40 |
1.6 | Horozontal Tension per phase ACSR 240/40 conductor at 0°C | DaN | 2500 |
1.7 | Type and section of earth wire OPGW 97-AL3/48-A20SA,24G.652 | mm2 | 144.8 |
1.8 | Horizontal tension forseen of earth wire at 0°C (OPGW) | daN | 1800 |
1.9 | Number of phase conductors | Pce | 3 |
1.10 | Number of earthwire OPGW conductor | Pce | 1 |
1.11 | Rated voltage of the line Phase-Phase | kV | 110 |
1.12 | Minimum electrical clearance phase -phase | mm | 1200 |
1.13 | Minimum electrical clearance phase -earth/tower | mm | 1200 |
1.14 | Electrical clearance distance phase to phase vertical arrangement in mid-span | mm | 5100 |
1.15 | Electrical clearance distance phase to earthwire OPGW in mid-span | mm | 4000 |
2 | Spans to be considered for tower calculation | ||
2.1 | Line span | m | 600 |
2.2 | Wind span | m | 600 |
2.3 | Positive weight span per one conductor ACSR 240/40 | m | 900 |
2.4 | Negative weight span per one conductor ACSR 240/40 | m | 600 |
2.5 | Positive weight span per conductor OPGW 97-AL3/48-A20SA,24G.652 | m | 700 |
2.6 | Negative weight span per eartwire OPGW 97-AL3/48-A20SA,24G.652 | m | 400 |
3 | Minimum height dimensions of the tower & foundation type | ||
3.1 | Tower arrangement : Two (2) lowest crossarms at the same level | vertical arrangement | |
3.2 | Total height to top above ground (earth OPGW attachement point) | m | 26.35 |
3.3 | Total height to lowest cross arms above ground ( conductor 1+2) attachement point) | m | 17.25 |
3.4 | Total height to highest cross arm above ground (conductor 3 attachement point) | m | 22.35 |
3.5 | Type of foundation ( metallic grillage filled with at least 1600 daN/m3 density soil compacted to a minimum of 2,5 bars) in normal areas without water to be considered where soil bearing capacity is min.3 bars | set | Static calculation |
3.6 | Type of foundation in swampy area with water: steel reinforced concrete foundation type flat footing , class C 25 to be considered where soil bearing capacity is approx.0,5 bar | m3 | 40 |
4 | Design load criteria According to IEC Standard 60826 | ||
4.1 | Wind pressure on conductor and insulators | N/m2 | 600 |
4.2 | Wind pressure on tower structure | N/m2 | 1000 |
4.3 | Safatey factor ( Utimate load condition) | see IEC 60826 | |
4.4 | Ice condition safety factor | factor | none |
5 | Tower and foundation design | ||
5.1 | Tower design calculation and tower layout to be provided with the offer | set | Required |
5.2 | Tower foundation design calculation and foundation layout to be provided with the offer | set | Required |
6 | Other technical requirements | ||
6.1 | Transversal loads to apply | According to IEC Standard | |
6.2 | Vertical loads to apply | According to IEC Standard | |
6.3 | Longititudinal loads to apply | According to IEC Standard | |
6.4 | Minimum bolt size ø | mm | 12 |
6.5 | Hot galvanized steel | g/m2 | min 600 |
6.6 | Minimum angle profile | mm | L 40x40x4 |
7 | Approximate tower weight leg extensions included | ||
7.1 | Tower weight above ground level | Kg | 3700 |
7.2 | Tower weight under ground level for grillage foundation | Kg | 1200 |
7.3 | Total tower weight under and above ground level | Kg | 4900 |
Steel material | Anti-push, bending and press strength (N/mm2) | Anti-shear strength (N/mm2) |
|
Grade | Thickness or diameter (mm) | ||
Q235 Steel |
≤16 | 215 | 125 |
>16~40 | 205 | 120 | |
>40~60 | 200 | 115 | |
>60~100 | 190 | 110 | |
Q355 Steel |
≤16 | 310 | 180 |
>16~35 | 295 | 170 | |
>35~50 | 265 | 155 | |
>50~100 | 250 | 145 | |
Q420 Steel |
≤16 | 380 | 220 |
>16~35 | 360 | 210 | |
>35~50 | 340 | 195 | |
>50~100 | 325 | 185 | |
Q460 Steel |
≤16 | 415 | 240 |
>16~35 | 395 | 230 | |
>35~50 | 380 | 220 | |
>50~100 | 360 | 210 |
Item | Grade | Anti-push strength (N/mm2) | Anti-shear strength (N/mm2) |
Fastener for towers |
4.8 | 200 | 170 |
5.8 | 240 | 210 | |
6.8 | 300 | 240 | |
8.8 | 400 | 300 | |
Anchor bolts |
Q235 | 160 | / |
Chinese 35 steel | 190 | / | |
Chinese 45 steel | 215 | / |
No | Code | DESCRIPTION |
1 | GB/T2694-2003 | Power Transmission line Steel tower - Technical requirements for manufacturing |
2 | JGJ81-2002 | Technical specification for welding for steel structure of building |
3 | GB9787-88 | Measuring and allowable tolerance for hot-rolled equal angle |
4 | GB709-88 | Measuring and allowable tolerance for hot-rolled plate and strip |
5 | GB/T699-1999 | Quality Carbon Structural Steel |
6 | GB/T1591-1994 | Low alloy high strength structural Steel |
7 | GB700-88 | Carbon Structural Steel |
8 | GB222-84 | Method of sampling steel for determination of chemical composition and permissible variations |
9 | GB/T228-2002 | Method for Tensile testing of metals |
10 | GB/T232-1999 | Method for Bending test of metals |
11 | GB/T5117-1995 | Carbon Welding Rod |
12 | GB/T5118-1995 | Low Alloy Welding Rod |
13 | GB/T8110-1995 | Welding wires for gas shielding arc welding of carbon and low alloy steels |
14 | GB/T10045-2001 | Carbon steel flux cored electrodes for arc welding |
15 | JB/T7949-1999 | Weld outer dimensions for steel construction |
16 | GB50205-2001 | Test Standard for Acceptance of Steel Structure |
17 | GB/T470-1997 | Zinc Ingot |
18 | GB3098.1-2000 | Mechanical properties of fasteners-Part 1:Bolts, screws and studs |
19 | GB3098.2-2000 | Mechanical properties of fasteners-Part2: Nuts, and thread |
20 | GB3098.3-2000 | Mechanical properties of fasteners-Part3: Fastening screw |
21 | GB/T5780-2000 | Helical Bolts Grade C |
22 | GB/T41-2000 | Helical Nuts Grade C |
23 | GB/T90-2002 | Flat Washer Grade C |
24 | GB/T13912-2002 | Metal Coating, Technical Requirement and Test Method for Hot-dip galvanized Metal Parts |
Standard | Description |
ASTM A6/A6M | Standard specification for general requirements for rolled structural steel bars, plates, and sheet piling. |
ASTM - 6 | - General Requirements for delivery of Rolled Steel Plates, Shapes, sheet Piling Bars for structural used |
ASTM A36/A36-M-97a | Standard specification for Carbon structural steel |
ASTM A123 / A123M-02 | Standard specification for Zinc (Hot-Dip Galvanized) Coatings on iron and steel products |
ASTM A143 / A143M-03 | Standard Practise for Safeguarding Against Embitterment of Hot-Dip Galvanized Structural Steel Products and Procedure for Detecting Embitterment |
ASTM A153/ A153M-05 | Standard specification for zinc coating (Hot-Dip) on iron and steel hardware |
ASTM A - 194 | - Grade for bolt |
ASTM A239 | Standard practice for locating the thinnest spot in a zinc (Galvanized) Coating on Iron or Steel Articles |
ASTM A242 | Standard specification for High-Strength Low-Alloy Structural steel |
ASTM A307 | Standard Specification for Carbon Steel Bolts and Studs, 60000 PSI Tensile strength |
ASTM A370-06 | Standard Test Methods and Definitions for Mechanical Testing of Steel Products |
ASTM A325 | Standard Specification for structural bolts, steel, Heat treated 120/105 ksi minimum tensile strength |
ASTM A-325 or A-354 | - Galvanized hexagonal head of connection bolt |
ASTM A325-97 | Standard Specification for High-strength Bolts for structural steel Joints |
ASTM A384 / A384M-02 | Standard Practise for Safeguarding Against Warpage and Distortion During Hot-Dip Galvanizing of Steel Assemblies. |
ASTM A394-93 | Standard Specification for steel Transmission Tower, Bolts, Zinc Coated and Bare |
ASTMA - 563 | - Class and size of nuts |
ASTMA - 572 | - Chemical composition of steel |
ASTM A572/A572-97c | Standard specification for High-Strength Low-Alloy Columbium-Vanadium Structural steel |
ASTMA - 615 | - The anchor bolt material |
ASTM A673 / A673M-07 | Standard Specification for Sampling Procedure for Impact Testing of Structural Steel |
ASTM B201 | Standard practice for testing Chromatic coating on Zinc and Cadmium surfaces |
ASTM E94-93 | Standard Guide for Radiographic Testing |
ASTM E 709-95 | Standard Guide for Magnetic Particle Examination |
ASCE Manual 72 | - Load testing a simple structure |
ASCE 10-97 | Standard Design of latticed steel transmission structures |
AWS D1.1 | American Welding Society D1,1/D1,1M structural Welding code- Steel |
ANSI B-182-2 | Bolts, nuts and washers dimensions |