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