This photo refers to 220kV 2F7 SDJ2 DC terminal and tension angle tower, they are double circuit Transmission line double circuits transmission line loaded pole. From earth wire and conductor arrangement, they are flat umbrella type pole. Pole wall is made of thin steel plate and connect by flange even slip joint.Some of their technical specification as follow:

1 climate condition

2 tower design data

3 Tower estimated weight and foundation force

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 2F7 SDJ2 DC terminal and tension angle tower mainly 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.

Our 220kV 2F7 SDJ2 DC terminal and tension angle tower can be manufactured as one large piece, or as several small pieces which fit together. Now MEGATRO can produce this type pole with some type as follow:

(1) Flange connection
(2) Slip joint
(3) Step type
(4) Stagger type
(5) Others

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

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

Besides, MEGATRO is one of the few manufactures who assemble a face of 220kV 2F7 SDJ2 DC terminal and tension angle 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 2F7 SDJ2 DC terminal and tension angle 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' 220kV 2F7 SDJ2 DC terminal and tension angle tower systems can accommodate a variety of cross-arm. MEGATRO also offers a wide variety of accessories and mounts.