132KV Heavy suspension tower

132KV heavy suspension transmission tower

Our company, QINGDAO MEGATRO HOLDING, CO., LIMITED, is a full service engineering and manufacturing company with a global reputation for delivering excellence and innovation in tower supply. We have over 10 years of experience and innovation in engineering, designing, and building towers.

We design all kinds of towers and posts for:

a.    Telecoms

b.    Power transmission

c.    TV and Radio Broadcast

d.    Roads and City Development

Our complete selection of towers includes:

a.    Self-supporting

b.    Monopoles

c.    Guyed towers

d.    Custom-designed radar towers

e.    Broadcast towers

f.      Power transmission

MEGATRO also designs and manufactures tower related products including:

a.    Fall protection

b.    Antenna brackets

c.    Other accessories if needed by clients

This photo refers to our 132KV heavy suspension tower, with technical specification as follow:

1)    132KV double circuit tower

2)    0~10 degree heavy suspension tower with suspension insulator string

3)    Weight span:  MAX. 420m, MIN 120m at normal condition; Max 320m, MIN 120m at broken wire condition

4)    ACSR (Grossbeak) phase conductor

5)    7/3.25 GS earthwire equivalent OPGW

6)    Material S355JO

7)    Besides tower and foundation plate & anchor bolts, we also design and provide:

Anti-climbing devices

Livestock guards

Bird guards

Access facility

(a)  step bolts

(b)  ladders

(c)  fall arrest systems

(d)  work platforms

(e)  danger and identification plates

(f)    earthwire bonding

(g)  earthing of tower

Our MEGATRO provide and design this type 132KV Heavy suspension tower, and mainly serve for our overseas client. Since 2004, MEGATRO focus mainly international market and had export many kind of transmission structures to overseas clients. MEGATRO has been manufacturing lattice transmission tower & tapered steel poles for lighting, traffic control, communication and utility applications. MEGATRO pioneered the development of transmission tower, telecom tower, substation, and other steel structure and was also at the forefront in the design of Transmission tower.

Today, with over 10 years of experience and our commitment to excellence, MEGATRO remains an industry leader in the manufacture and design of steel tubular & angular & monopole structures for all Highway, Municipal, Custom, telecom, lighting and electric Utility applications. MEGATRO has a complete staff of professional engineering personnel trained in the PLS Pole program and three different manufacturing processes for producing steel towers, poles and other supports. We utilize the latest versions of PLS-CADD, PLS-POLE, TOWER, AutoCAD and other CAD software.

The structure shall be designed according to load combinations given as per IEC 61936-1 and as illustrated below:
Normal loads
1 Dead weight load
2 Tension load
3 Erection load
4 wind load
 
Exceptional loads
1 Switching forces
2 short-circuit forces
3 Loss of conductor tension
4 Earthquake forces
 

 MEGATRO is fully equipped and qualified to carry out Design Engineering services which includes:

√ Overhead Transmission line steel tower & Telecom steel tower

   Basic Design and Analysis

√ Shop Erection Drawings

√ As-Built Drawings

MEGATRO performs in-house design activities specializing in electrical overhead transmission &telecom tower steel works, which include wind and earthquake loading, static analysis, stress analysis by finite element methods and fatigue.

Our Engineering Department is boasting of highly qualified engineering who are conversant with international codes and standards. The work is carried out with extensive use of CAE/CAD via a large of computer network. The computer hardware & drafting software are liked to the CNC workshop equipment for downloading of information thereby eliminating error and saving valuable production time.

MEGATRO is one of the few manufactures who assemble a face of 132KV Heavy suspension tower.  This attention to quality may not be the cheapest process but it does insure every tower meets our high standards of quality. And it helps to reduce on-site construction cost due to mismatched assemblies. After fabrication all 132KV Heavy suspension towers are delivered to the galvanizing facility to be Hot DIP Galvanized. Towers are processed through the facility by Caustic Cleaning, Pickling, and then Fluxing. These strict procedures insure years of maintenance free towers. MEGATRO' 132KV Heavy suspension towers systems can accommodate a variety of cross-arm. MEGATRO also offers a wide variety of accessories and mounts.  

Other information:
Availability size: Based on the customer's requirements.
Material: Chinese material or as per clients requirement
Package: Both parties discuss before delivery
Port of Loading: Qingdao Port
Lead Time: One month or based on the customer's needs
Minimum order: 1ton
Fabrication standard: Chinese Standard or other standard which client accepted

Steel grades
Tower legs: Chinese steel Q345, which same to ASTM A572 GR50
Other webs, bracing and not stress plate and angle steel: Chinese Q235B, which same to ASTM A36
Plates: Chinese steel Q345B, 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, similar to EN 10056-1/2
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

 

APPLICABLE STANDARD AND CODES

All towers manufactured and design shall be generally in accordance with latest revision of the following standards except where specifically directed otherwise.

General

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

Chinese Standard

American Standards:

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

If any special requirement, we can design and discuss with client.