- Model NO.: MGP-220kv-2F11-SDJC (40-90)
- Conductor Circuit: Double Circuit
- Materials: Steel
- Style: Independence Tower
- Design Software: Pls
- Accessories 2: Cable and Conductor
- Accessories 4: Insulator
- Accessories 6: Tower Foundation
- Accessories 8: Anchor Bolts and Template
- Trademark: MEGATRO
- Specification: AS PER CLIENT
- HS Code: 73082000
- Usage: Crossing Tower, Tension Tower, Terminal Tower
- Certification: ISO
- Standard: Nonstandard
- Structure: According to Client′s Technical Specification
- Accessories 1: Power Fitting
- Accessories 3: Tower Earthing Kits
- Accessories 5: Earth Wire and Opgw
- Accessories 7: Lightning Rod
- Accessories 9: Other Servids You Needed
- Transport Package: Export Standard Package
- Origin: Shandong, China
This photo refers to our 220KV 2F11 SZK double circuit 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 | -20 | 0 | 0 |
| Ice thickness | -5 | 10 | 15 |
| Basic wind speed | -5 | 29 | 0 |
| Installation condition | -10 | 10 | 0 |
| Annual temperature | 15 | 0 | 0 |
| Lightning overvoltage | 15 | 10 | 0 |
| Operation overvoltage | 15 | 15 | 0 |
| Hot-line work | 15 | 10 | 0 |
2 tower design data
Â
|
Tower type |
Nominal Height scope (mm) |
Nominal Height (mm) Â |
Horizontal span (m) |
Vertical Span (m) Â |
Angle º |
Insulator Type  |
Horizontal Span at angel condition |
| 2F11 SZK | 42~54 | 54 | 410 | 550 | / | I type Insulator | / |
| Conductor type: 2×LGJ -630/45 | OPGW: JLB-150 | ||||||
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 220KV 2F11 SZK double circuit 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:
- Full Turn-Key provider including site acquisition, engineering services, manufacturing,  field services-DAS, tech services, value added reseller and monitoring, maintenance and network ownership
- Specialize in developing supplying and building wireless and wired networks and in-building telecommunications systems, as well as energy infrastructure
- Single source from Design to System Integration
- Top quality, ISO 9001 registered
MEGATRO mainly design all kinds of towers and posts for:
- Telecoms
- Power transmission
- TV and Radio Broadcast
- Roads and City Development
- Wind energy solution
- Steel structure and workshop
Our complete selection of towers includes:
- Self-supporting
- Monopoles
- Guyed towers
- Custom-designed radar towers
- Broadcast towers
- Power transmission
MEGATRO also designs and manufactures tower related products including:
- Fall protection
- Antenna brackets
- 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
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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 220KV 2F11 SZK double circuit 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 220KV 2F11 SZK double circuit 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.
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