| Usage: | Crossing Tower, Tension Tower, Terminal Tower, Branching Tower, According to Client Requirements |
|---|---|
| Conductor Circuit: | According to Client′s Technical Specification |
| Certification: | ISO |
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| Item | Biggest Wind speed |
Covered with ice It's windy. |
Minimum Temperature |
Average annual Temperature |
Highest Temperature |
Within Voltage |
Outside. It's windy. |
Outside. No wind |
Installation It's windy. |
| Temperature (ºC) | -5 | -5 | -20 | 10 | 40 | 15 | 15 | 15 | -10 |
| Wind speed (M/s) | 25 | 10 | 0 | 0 | 0 | 15 | 10 | 0 | 10 |
| Ice thickness (m) | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Item | Operation of one (Gale) | Operation Situation Two (icing) | Operation of three (low temperature) |
| Temperature (ºC) | -5 | -5 | -20 |
| Wind speed (m/s) | 25 | 10 | 0 |
| Ice thickness (m) | 0 | 5 | 0 |
| Item | Single back line and double return line broken conductor | All kinds of circuit broken ground |
| Temperature (ºC) | -5 | -5 |
| Wind speed (m/s) | 0 | 0 |
| Ice thickness (m) | 0 | 0 |
| Disconnection situation | Break one phase or one phase splitting the wire, the ground is not broken | The wire is not broken, there is a ground wire imbalance tension |
| cross-sectional area A (mm2) |
Wire Diameterd (mm) | elasticity Factor E (MPa) |
Coefficient of temperature expansion (1/°C) |
calculate the pull-breaking force (N) | Calculated Quality(kg/km) | Tensile strength[]mpa | Safety FactorK | Allowable stress []mpa |
Average annual stress limit []mpa |
| 152.8 | 16 | 66000 | 21.2 x Ten-6 | 32860 | 461.4 | 204.3 | 2.5 | 81.72 | 51.075 |
| cross-sectional area A (mm2) |
Wire Diameterd (mm) | elasticity Factor E (kg/) |
Coefficient of temperature expansion (1/°C) |
Nominal tensile strength(MPA) | Calculated Quality(kg/km) | minimum breaking ForceKN) |
| 37.2 | 7.8 | 18508 | 11.5×10-6 | 1470 | 275 | 54.63 |
| Part number | Name | Quality (kg) | Number | model + ( lengthmm) |
| 1 | Hanging Board | 0.56 | 1 | Z-7 ( ) |
| 2 | Ball head hanging Ring | 0.27 | 1 | QP-7 ( m ) |
| 3 | Insulators | 5 | 7 | X-4.5 ( 146 ) |
| 4 | Overhanging clamp | 2.0 | 1 | CGU-3 ( 102 ) |
| 5 | Pre-stranded wire | 0.2 | 1 | Fyb-150/8 |
| Length of insulator string | = 1012mm | |||
| Insulator String Weight | 35.0kg | |||
| Applicable wire | Lgj-150/8 | |||
| Serial number 1 |
name is called | to line | Number | single Heavy ( kg ) |
Long degrees ( mm ) |
Total heavy (kg) |
long degrees ( mm ) |
| U type Hanging ring | 1 | 0.5 | 80 | ||||
| 2 | Hanging ring | 1 | 0.55 | 100 | |||
| 3 | Overhanging clamp | 1 | 1.40 | 82.5 | 2.45 | 262.5 |
| Parameters | (kn/) |
( |
(kn/) |
|||||
| Numerical | 13 | 0.5 | 0.8 | 17 | 25 | 35 | 220 |
| Situation Weather, load and tension |
Normal | Installation | Breaking | |||
| Covered with ice | The most windy | The lowest temperature | ||||
| Meteorological conditions | Temperature °C | -5 | -5 | - | -10 | -20 |
| Ice thickness mm | 5 | 0 | 0 | 0 | 0 | |
| Wind speed m /s | 10 | 25 | 0 | 10 | 0 | |
| Horizontal load N |
Wire | 758.1 | 2887.9 | 3275.3 | ||
| Ground | 495.5 | 1153.6 | ||||
| Vertical load N |
Wire | 4193 | 2565.1 | 2565.1 | 5821.7 | 3606.34 |
| Ground | 2014 | 1041.2 | 1041.2 | 760 | ||
| Ground tension (N) | 5098.8 | |||||
| Residual tension of broken conductor (N) | 6440.56 |
|||||
| 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/T8220-1995 | 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 |
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