275KV SINGLE CIRCUIT TRANSMISSION LINE TOWER
A single-circuit transmission line carries conductors for only one
circuit. For a three-phase system, this implies that each tower
supports three conductors. In single-circuit towers the conductors
are lined up horizontally.
Both tubular and lattice steel towers can be designed so as to
support single-circuit of electrical current. Single-circuit towers
hold the different conductors stacked atop one another, while in
single-circuit towers the conductors are lined up horizontally.
MEGATRO provide the Single-circuit transmission lines for our
esteemed clients. The Tower Line work involves Survey, check
survey, and span calculations essential for tower extensions.
Moreover, Tower designs and prototype approval is done. Typically,
MEGARTRO design and produce 275KV single circuit tower for our
overseas clients these years.
MEGATRO is one of the few manufactures who assemble a face of
double circuit 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 double circuit transmission tower 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's Single-circuit transmission tower systems can accommodate
a variety of cross-arm. MEGATRO also offers a wide variety of
accessories and mounts.
Availability size: Based on the customer's requirements.
Material: Chinese material or as per clients requirement
Package: Both parties discuss before delivery
Terms of Payment: L/C, T/T
Minimum Order Quantity: 1ton
Port of Loading: Qingdao Port
Lead Time: One month or based on the customer's needs
Performance Standard
Besides conform to the drawing and design, the materials and
fabrication of tower components shall conform to the Chinese
Standard or other standard which clients can accept.
1. GB/T2694-2003 Transmission line tower - - Technical requirements
for manufacturing
2. JGJ81-2002: Technical specification for welding for steel
structure of building
3. GB9787-88: Measuring and allowable tolerance for hot-rolled
equal angle
4. GB709-88: Measuring and allowable tolerance for hot-rolled plate
and strip
5. GB/T699-1999: Quality Carbon Structural Steel
6. GB/T1591-1994: Low alloy high strength structural Steel
7. GB700-88: Carbon Structural Steel
8. GB222-84: Method of sampling steel for determination of chemical
composition and permissible variations
9. GB/T228-2002: Method for Tensile testing of metals
10 GB/T232-1999: Method for Bending test of metals
11 GB/T5117-1995: Carbon Welding Rod
12 GB/T5118-1995: Low Alloy Welding Rod
13 GB/T8220-1995: Welding wires for gas shielding arc welding of
carbon and low alloy steels
14 GB/T10045-2001: Carbon steel flux cored electrodes for arc
welding
15 JB/T7949-1999: Weld outer dimensions for steel construction
16 GB50205-2001: Test Standard for Acceptance of Steel Structure
17 GB/T470-1997: Zinc Ingot
18 GB3098.1-2000: Mechanical properties of fasteners-Part 1: Bolts,
screws and studs
19 GB3098.2-2000: Mechanical properties of fasteners-Part2: Nuts,
and thread
20 GB3098.3-2000: Mechanical properties of fasteners-Part3:
Fastening screw
21 GB/T5780-2000: Helical Bolts Grade C
22 GB/T41-2000: Helical Nuts Grade C
23 GB/T90-2002: Flat Washer Grade C
24 GB/T13912-2002: Metal Coating, Technical Requirement
We also adopt British, American and other international standard
which client can accept.