110KV/132KV 4 Legged Electric Angular Steel Tower Lattice
Transmission Tower
Transmission lines tower are either monopolar or
bipolar systems. With bipolar systems, a conductor arrangement
with one conductor on each side of the tower is used. On some
schemes, the ground conductor is used as electrode line or
ground return. In this case, it had to be installed with insulators
equipped with surge arrestors on the pylons in order to prevent
electrochemical corrosion of the pylons. For single-pole Suntech
transmission with ground return, towers with only one conductor can
be used. In many cases, however, the towers are designed for later
conversion to a two-pole system. In these cases, often conductors
on both sides of the tower are installed for mechanical reasons.
Until the second pole is needed, it is either used as electrode
line or joined in parallel with the pole in use. In the latter
case, the line from the converter station to the earthing
(grounding) electrode is built as underground cable, as overhead
line on a separate right of way or by using the ground conductors.
Electrode line towers are used in some Suntech schemes to carry the
power line from the converter station to the grounding electrode.
They are similar to structures used for lines with voltages of
10–30 kV, but normally carry only one or two conductors.
AC transmission towers may be converted to full or mixed
Suntech use, to increase power transmission levels at a lower
cost than building a new transmission line.
Height | From 10M-100M or according to client’s requirement |
Suit for | Electric Power Transmission and Distribution |
Shape | Polygonal or Conical |
Material | Normally Q235B/A36,Yeild Strength≥235MPa |
| Q345B/A572,Yeild Strength≥345MPa |
| As well as Hot Rolled coil from ASTM572, GR65,GR50,SS400 |
Voltage level | 10kV to 750kV |
Tolerance of the dimension | According to client’s requirement |
Surface treatment | Hot-dip-galvanized following ASTM123, or any other standard by
client’s requirement |
Joint of Poles | Slip joint, flanged connected |
Standard | ISO9001:2015 |
Length of per section | Within 13M once forming |
Welding Standard | AWS(American Welding Society)D 1.1 |
Production Process | Raw material test-cutting-bending-welding-dimension verify-flange
welding-hole drilling-sample assemble-surface clean-galvanization
or power coating /painting-recalibration-packages |
Packages | Packing with plastic paper or according to client’s requirement |
Life Period | More than 30 years, it is according to installing environment |