Usage: | Crossing Tower, Tension Tower, Terminal Tower |
---|---|
Conductor Circuit: | Single Circuit |
Certification: | ISO |
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conductor | OPGW | Ground lead wire | |
Size and type | 1*795MCM ACSR/AS "Condor" Aluminum clad steel wire core type, single conductor/phase |
OPGW shall be 36 fibers and aluminum clad steel wire | OPGW should be OHGW/AS aluminum clad steel wire, 7 no. 6 AWG TYPE |
Stranding | 54/7 | - | 7 |
Outside diameter | 27.73mm | 15mm(approx.) | 9.25mm |
Cross-sectional area | 454.78mm2 | - | 51.10mm2 |
Weight | 1.46kg/m | 0.6300kg/m | 0.406kg/m |
Breaking strength | 12600kg | 10197kg | 1929kg(approx) |
MATERIAL | Unloaded | loaded | |
Initial (15ºC) | Final (15ºC) | Final (15ºC) | |
conductor | 33.33 | 25 | 40 |
OPGW/OHGW | 30 | 15 | 26 |
Type | Structure classification | Deflection angle | Wind span(m) | Weight span (m) | Uplift span (m) | ||
conductor | OPGW | conductor | OPGW | ||||
DS | Tension | 0~15° | 400 | 1100 | 1600 | 500 | 800 |
Tower Code | Tower type | Tower description | Height (m) | Basic body weight kgs |
STR14 | DS-suspension | Basic body+4.5m body extension | 30.5 | 11720 |
Type of load | Overload factor | remarks |
1 vertical load(under wind condition) | 1.5 | Applied on cond. I.II& Dead WT. of tower |
2 vertical load(no wind, erection/ Maintenance ) | 2.0 | Applied on cond. III& Dead WT. of tower |
3 transverse loads | ||
A due to wind | 1.00 | Applied on condition I, II and on longitudinal faces of poles |
B due to angular tension in wires | ||
Under wind condition | ||
C wind on towers without wires | ||
4 transverse load (no wind, erection /Maintenance) | 2.0 | Applied on condition III |
5 longitudinal (no wind, erection /Maintenance) | 2.0 | Applied on condition III |
6 other longitudinal loads | 1.50 | Applied on condition I and II |
7 uplift load | 1.50 | Applied on condition I and II |
8 uplift load | 2.00 | Applied on condition III |
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 A907 | 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 |