Low Alloy High Strength Structural Steel Electricity Transmission
Towers
1. Production decription
Steel Grades
Main legs: Chinese steel Q355B, which same to ASTM A572 GR50
Other members , bracing and not stress plate and angle steel:
Chinese Q235B, which same to ASTM A36
Plates: Chinese steel Q355B, which same to ASTM A572 GR50
Bolts: Chinese grade 6.8 and 8.8, which similar to ASTM A394
A) Dimension and tolerance for angle are according to GB/T1591-1994
B) Hot dip galvanization in accordance with GB/T 13912-2002, which
similar to ASTM A 123
C) The welding will be performance in accordance with AWS D1.1 or
CWB standard
| Packing | Our product will be packed into several bundles whose weight is 2~3
MT or according to your requirement. |
All towers manufactured and design shall be generally in accordance
with latest revision of the following standards except where
specifically directed otherwise.
General
IEC 60826 - Design criteria of overhead lines
IEC 60652 - Loading tests on overhead line structures
ISO 1459 - Metallic coatings - Protection against corrosion by Hot
Dip Galvanizing
ISO 1461 - Hot dip galvanized coatings on fabricated iron and steel
articles
ISO 12944 - Paint coatings, corrosion protection, and structural
steelwork
ISO 898-1 - Mechanical properties of fasteners. Part 1-Bolts,
Screws and studs
ISO 630 - Structural Steels - plates, wide flats, bars, sections
and profiles
ISO 657 - Hot rolled structural steel plates tolerances on
dimensions and shape
ISO 7411 - Hexagon Bolts for high strength structural bolting with
large width across flats
ISO 657-5 - Hot rolled Structural Steel Sections equal and unequal
leg angles
ISO 7452 - Hot rolled structural steel plates tolerances on
dimensions and shape
BS EN 50341-1 - Overhead electrical lines exceeding AC 45kV
-General Requirements
BS 8004 - Code of Practice for Foundations
BS 8110 - Structural use of concrete
ANSI10-97 - Design of latticed steel transmission structures
IEC 60050 (151) International Electro-technical Vocabulary
Part 51 Electrical and Magnetic Devices
IEC 60050 (601) Chapter 601: Generation, transmission and
distribution of electricity-General
IEC 60050 (601) Chapter 601: Generation, transmission and
distribution of electricity-Operation
IEC 60059 IEC standard current ratings
Certificate
Type test
2. Product capacity
We have 5 auto production line for electric angle steel towers
Manufacturing,We can supply 3000 tons angle steel tower
every month .Else we have enogh site for installing more production
line if needed.
We also have plasma cutting machine ,14m bending machine and auto
welding machines for pole towers .
3. Technical support
Our engineer and drawer has lots of designing ,lofting experience
of lattice steel towers .
Which we can supply a overall solution of all the towers .
| Service you can get from our engineer | tower design,tower lofting ,tower weight calculation and loading
plans |
| Software they used | TTA,STWXP,TMA,LMA,Daoheng |
4. Quality control
We have very strict quality control in every steel towers .
Material incoming control:chemical and physical test
Zinc coating thinkness inspection
5. Hot dip galvanization and painting
6. Package and delivery
Package we usually do as our clients requirment .Usually for angle
steel towers,We use steel wire to make it into bundle and use
special material to protect the Zinc.
7. Company introduction
Qingdao Liangta Steel Structure Co., Ltd. ,established in year
2009,is a leading professional manufacturer in the field of
transmission steel towers (the voltage up to 1000kv),
telecommunication towers, monopoles, substation structures and
rooftop towers. We also supply steel profile products as per
customers 'requirement.
The factory located in Jiaozhou bay of Qingdao, covered an area of
over 60,000 square meters with an annual production capacity 40,000
tons.
Location:
Less than one hour drive from Qingdao International Airport, 1 hour
drive from Qingdao sea port.
• Qualification Certificates:
• -Environmental Management System Certificate: ISO14001:2015
• -Quality Management Systems Certificate: ISO9001:2015
• -Established Occupational Health and Safety Management Systems
Certificate: OHSAS 18001:2007
We also have many experiences of foreign projects, like
Philippines, Myanmar, Iraq, Mauritania and so on.
Welcome to contact us ,we make sure your every question will be
answered in time .
