Megatro 330kv 3I2-Sj1 Doble Circuit Angular Suspension Transmission Structure

  • Model NO.: MGP-330KV 3I2-SJ1
  • Conductor Circuit: Double Circuit
  • Materials: Steel
  • Style: Independence Tower
  • We Can Design by Pls & Tower Software: According to Client Desing or Requirement
  • Accessories 2: Power Fitting
  • Transport Package: Export Standard Package
  • Origin: Shandong, China
  • Usage: Crossing Tower, Angle Tower, Terminal Tower, Transposition Tower, According to Client′s Technical Specification
  • Certification: ISO
  • Standard: Nonstandard
  • Structure: According to Client′s Technical Specification
  • Accessories 1: Cable and Conductor
  • Trademark: MEGATRO
  • Specification: AS PER CLIENT
  • HS Code: 73082000
MEGATRO 330KV 3I2-SJ1 DC light angle tangent transmission tower
This photo refers to our 330KV 3I2-SJ1 DC light angle tangent transmission tower, it is widely used in our Chinese market. Some of technical features of this tower as follow:
1 climate condition
Item Temperature (ºC) Wind speed (m/s) Ice thickness (mm)
Max. temperature 40 0 0
Mini. temperature -30 0 0
Ice thickness -5 10 10
Basic wind speed -5 29 0
Installation condition -15 10 0
Annual temperature 10 0 0
Lightning overvoltage 15 10 0
Operation overvoltage 10 15 0
Hot-line work 15 10 0

2 tower design data
 
Tower
type 		Nominal
Height
scope
(mm) 		Nominal
Height
(mm)
 		 Horizontal
span
(m) 		Vertical
Span
(m)
 		 Angle
º 		Insulator
Type
 		 Horizontal
Span at angel condition
3I2-SJ1 18~30 27 400 600 0-20 / /
Conductor type: 4×LGL -400/35 OPGW: JLB-120

3 Here is the design strength of Chinese tower steel
Steel material Anti-push, bending and press strength (N/mm2) Anti-shear strength
(N/mm2)
Grade Thickness or diameter (mm)
Q235
Steel 		≤16 215 125
>16~40 205 120
>40~60 200 115
>60~100 190 110
Q345
Steel 		≤16 310 180
>16~35 295 170
>35~50 265 155
>50~100 250 145
Q420
Steel 		≤16 380 220
>16~35 360 210
>35~50 340 195
>50~100 325 185
Q460
Steel 		≤16 415 240
>16~35 395 230
>35~50 380 220
>50~100 360 210

4 Here is the design strength of our Chinese tower bolts
Item Grade Anti-push strength (N/mm2) Anti-shear strength (N/mm2)
Fastener
for towers 		4.8 200 170
5.8 240 210
6.8 300 240
8.8 400 300
Anchor
 bolts 		Q235 160 /
Chinese 35 steel 190 /
Chinese 45 steel 215 /

Remark: above technical data only references for our client, we can design every type for our overseas clients.

MEGATRO is a full service engineering company with a global reputation for delivering excellence and innovation in power transmission, transformation, distribution, and telecommunications systems. Our MEGATRO provide and design this type 330KV 3I2-SJ1 DC light angle tangent transmission tower mainly for our Chinese and 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.


Over 10 years of experience and innovation in engineering, designing and building towers has evolved MEGATRO into its current form:
  1. Full Turn-Key provider including site acquisition, engineering services, manufacturing,   field services-DAS, tech services, value added reseller and monitoring, maintenance and network ownership
  2. Specialize in developing supplying and building wireless and wired networks and in-building telecommunications systems, as well as energy infrastructure
  3. Single source from Design to System Integration
  4. Top quality, ISO 9001 registered
A complete selection of towers including self-support, lattice steel tower, monopoles and guyed towers, form custom-designed radar towers to broadcast towers and energy infrastructure. MEGATRO carries a variety of related products including fall protection, transmission lines, antennas, obstruction lights, and accessories, and other products if client need, MEGATRO also tailored product as per client condition.
MEGATRO mainly design all kinds of towers and posts for:
  1. Telecoms
  2. Power transmission
  3. TV and Radio Broadcast
  4. Roads and City Development
  5. Wind energy solution
  6. Steel structure and workshop

Our complete selection of towers includes:
  1. Self-supporting
  2. Monopoles
  3. Guyed towers
  4. Custom-designed radar towers
  5. Broadcast towers
  6. Power transmission

MEGATRO also designs and manufactures tower related products including:
  1. Fall protection
  2. Antenna brackets
  3. Other accessories if needed by clients

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


Moreover, 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.

Besides, MEGATRO is one of the few manufactures who assemble a face of  330KV 3I2-SJ1 DC light angle tangent transmission 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 330KV 3I2-SJ1 DC light angle tangent transmission 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. All finished surfaces shall be level and free of tears, burrs, clots and impurities.

Except otherwise specified elsewhere in the specification, the surface treatment and corrosion protection for all metal parts shall be in conformity with the latest revision of the standards listed below:
ASTM A 123 zinc (hot-dipped galvanized) coating on iron and steel products
DIN 55928 Protective painting of steel structure instructions
DIN 55945 Painting materials-Notions
DIN 18363 Paint work-Buildings
DIN 18364 Surface protection work for steel
DIN 53210 Determination of rust degree
DIN 55151 Determination of adhesion
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