Model NO.: MGP-500kv-5D1-SDJC(40-90)
Structure: According to Client′s Technical Specification
Design Software: Pls Pole & Tower
Accessories 1: Power Fitting
Accessories 2: Conductor and Cable
Accessories 3: Tower Earthing Kits
Trademark: MEGATRO
Transport Package: Export Standard Package
Specification: AS PER CLIENT
Origin: Shandong, China
HS Code: 73082000
Model NO.: MGP-500kv-5D1-SDJC(40-90)
Structure: According to Client′s Technical Specification
Design Software: Pls Pole & Tower
Accessories 1: Power Fitting
Accessories 2: Conductor and Cable
Accessories 3: Tower Earthing Kits
Trademark: MEGATRO
Transport Package: Export Standard Package
Specification: AS PER CLIENT
Origin: Shandong, China
HS Code: 73082000
MEGATRO 500KV 5D1-SDJC(40-90) DC heavy angle terminal transmission tower
This photo refers to our 500KV 5D1-SDJC(40-90) DC heavy angle terminal 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 | -40 | 0 | 0 |
| Ice thickness | -5 | 10 | 10 |
| Basic wind speed | -5 | 31 | 0 |
| Installation condition | -15 | 10 | 0 |
| Annual temperature | -5 | 0 | 0 |
| Lightning overvoltage | 15 | 10 | 0 |
| Operation overvoltage | 5- | 17.5 | 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 |
| 5D1-SDJC(40-90) | 21~33 | 33 | 135/315 | 160/640 | 0~90 | / | / |
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| Conductor type: 4×LGJ -630/45 | OPGW: JLB-150 | ||||||
4Here 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 | |
5 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.
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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 500KV 5D1-SDJC(40-90) DC heavy angle terminal 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.
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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
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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.
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Besides, MEGATRO is one of the few manufactures who assemble a face of 500KV 5D1-SDJC(40-90) DC heavy angle terminal 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 500KV 5D1-SDJC(40-90) DC heavy angle terminal 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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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
Barrier Terminal Block
Barrier Terminal Block
Terminal blocks are used to facilitate the connection of wires. In fact, they are a piece of metal sheet sealed in insulating plastic. There are holes at both ends to insert wires and screws to fasten or loosen them. For example, two wires sometimes need to be connected and sometimes need to be disconnected. At this time, they can be connected with terminals and can be disconnected at any time without having to connect them It's very convenient and fast to weld or wind together. And it is suitable for a large number of wire interconnection. In the power industry, there are special terminal blocks, terminal boxes, all of which are terminal blocks, single-layer, double-layer, current, voltage, common, breakable, etc. A certain crimping area is to ensure reliable contact and enough current.
Barrier Terminal Block
ShenZhen Antenk Electronics Co,Ltd , https://www.antenk.com