Company Name : Qingdao Megatro Holding Inc. |
Contact Person : Karl |
Tel : 86-532-55588298 86-18853277506 |
Fax : 86-532-55588276 |
Email : karl@megatro.cn |
Address : 288, Zhuhai Road, Huangdao District, Qingdao city, Shandong Province, China |
WebSite :
http://www.yeskey.com/space/Megatro3513/ |
Substation is a high-voltage electric
system facility. It is used to switch generators, equipment, and circuits or
lines in and out of a system. It also is used to change AC voltages from one
level to another, and/or change alternating current to direct current or direct
current to alternating current. Some substations are small with little more
than a transformer and associated switches. Others are very large with several
transformers and dozens of switches and other equipment.
MEGATRO provide every type of substation framework, which is the steel
framework for electric power transmission and transformation and widely used in
power transmission &distribution industry. We manufacture them with
complicated technology and adopted sophisticated production line. Now we sell
them widely all over the world.
Fabrication: conform to clients
drawings and technical requirements
Place of Origin:
Availability size: Based on the
customer’s requirements.
Material: Chinese material or
as per clients requirements
Package: both party discuss and
agreed before delivery
Terms of Payment: L/C; T/T
Minimum Order Quantity: 50tons
Lead Time: one month or based
on the customer's needs.
Performance Standard
Besides conform to the drawing
and design, the materials and fabrication of tower components shall conform to
the following standards (Chinese Standards):
No |
Code |
DESCRIPTION |
1 |
GB/T2694-2003 |
Transmission line 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 |
American Standards:
Standard |
Description |
ASTM A6/A |
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 |
Standard specification for Carbon
structural steel |
ASTM A123 / A |
Standard specification for Zinc (Hot-Dip
Galvanized) Coatings on iron and steel products |
ASTM A143
/ A |
Standard Practise for Safeguarding Against
Embitterment of Hot-Dip Galvanized Structural Steel Products and Procedure
for Detecting Embitterment |
ASTM A153/ A |
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
/ A |
Standard Practise for Safeguarding Against Warpage
and Distortion During Hot-Dip Galvanizing of Steel Assemblies. |
ASTM A394-93 |
Standard Specification for steel |
ASTMA – 563 |
- Class and size of nuts |
ASTMA – 572 |
- Chemical composition of
steel |
ASTM A572/A572 |
Standard specification for High-Strength
Low-Alloy Columbium-Vanadium Structural steel |
ASTMA – 615 |
- The anchor bolt material |
ASTM A673
/ A |
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, |
ANSI B-182-2 |
Bolts, nuts and washers dimensions |
DIN VDE 0101 -
Isokeraunic Level
VDE 0201 - Climatic and
environmental conditions
CVDE 0210 - Minimum safety factors under simultaneous working loads
ISO R898 Mechanical Properties
of Fasteners
BS EN ISO 1461:1991 - High dip
galvanized coatings on fabricated iron and steel articles. Specifications and
standards
A) BS 5950: Welding Terms And
Symbols
B) BS 729: Hot - Dip Galvanised
Coating On Iron And Steel Articles
C) BS 2901: Filler Rods And
Wires For Gas Shielded Arc Welding: Part 1 Ferritic Steels
D) BS 3692: ISO Metric
Precision Hexagon Bolts, Screws And Nuts
E) BS 4360: Weldable Structural
Steel
F ) BS 5135: Metal - Arc
Welding Of Carbon And Carbon Manganese Steel
G) BS 5950: Part 1: Code Of
Practice For Loading Latticed Tower & Masts
Part 2: Guide To The Background
And Use Of Part 1"Code OF Practice For Loading"
Part 3: Strength Assessment of
Members
H) DD 133 (1986): Code Of
Practice For Loading Latticed Tower & Masts
I) BS 4592 (1987): Part 2:
Specification For Expanded Metal Grating Panels
J) BS 4592 (1977): Code Of
Practice For Protective Coating Of Iron And Steel Structure Against Corrosion
K) BS 4190: Bracing &
Flanged Bolts
L) BS 4190: Rolled Steel
sections, Flats & Plates