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Megatro 400kv Low Profile Strain Straight Line Tower

China Megatro 400kv Low Profile Strain Straight Line Tower, Find details about China 400kv Sc Tension Electrical Tower, 400kv Strain Overhead Power Line Tower from Megatro 400kv Low Profile Strain Straight Line Tower

Model NO.
MGP-400kv
Structure
According to Client Requirements
Design Software
Pls
Accessories 1
Power Fitting
Accessories 2
Conductor and Cable
Accessories 3
Earth Wire and Opgw
Accessories 4
Tower Foundation and Design
Accessories 5
Tower Earthing Kits and Lightning Rod
Accessories 6
Aviation Light
Accessories 7
Insulator
Accessories 8
Anchor Bolts and Templates
Accessories 9
Opgw and Cable
Trademark
MEGATRO
Transport Package
Export Standard Package
Specification
As per client requirements
Origin
Shandong, China
HS Code
73082000
Model NO.
MGP-400kv
Structure
According to Client Requirements
Design Software
Pls
Accessories 1
Power Fitting
Accessories 2
Conductor and Cable
Accessories 3
Earth Wire and Opgw
Accessories 4
Tower Foundation and Design
Accessories 5
Tower Earthing Kits and Lightning Rod
Accessories 6
Aviation Light
Accessories 7
Insulator
Accessories 8
Anchor Bolts and Templates
Accessories 9
Opgw and Cable
Trademark
MEGATRO
Transport Package
Export Standard Package
Specification
As per client requirements
Origin
Shandong, China
HS Code
73082000
MEGATRO 400kv low profile strain straight line tower
Anchor pylons may also have a switch attached to their crossbeam. These so-called switch pylons are operated from the ground by the use of long rods. The attachment of circuit breakers to pylons is only practical when voltages are less than 50 kV.
Sequences
This straight line is made of strain towers to achieve low profile of the pylons and high clearance of the wires.
Sequences of two or more strainer pylons are uncommon in a powerline because strainers require twice as many strain insulators as ordinary pylons. Longer wire sections thus reduce installation work and cost. Sequences of strainers are sometimes used at powerlines crossing valleys, or where the powerline runs a path with curves.

This photo refers to our 400kv low profile strain straight line 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 4000
Mini. temperature-2000
Ice thickness-51010
Basic wind speed-5270
Installation condition-10100
Annual temperature1500
Lightning overvoltage15100
Operation overvoltage15160
2 Technical specification of conductor and OPGW

Item 		Conductor OPGW
JL/G1A-500/35JLB20A-170

construction		AL45×3.76 
Steel(Al wrap steel )7×2.5119×3.4

Cross-section
(mm2)		Al 500.0043.13
Steel 34.60129.37
Total 535.00172.5
Diameter 30.1117.01
Length mass (kg/km)1650.21152.0
Elastic module (MPa)63000147200
coefficient of linear expansion (1/ºC)20.9×10-613.0×10-6
Rated broken (N)119410203380
3 tower design data
Tower
type		Nominal
Height
Scope (mm)		Horizontal
span
(m)		Vertical
Span
(m)		Angle
º		Nominal height tower weight Kg
8A1-JC15505508000~2093551
4 type and force of conductor and OPGW

Power
voltage
1000KV

 		Conductor
type		8×JL/
GIA-500/35		Max. operation
Tension force
(KN/phase)
363.006
Un-balance
Stress value(%)
30
OPGW
Type 		JLB20A-170Max. operation
Tension force
(KN/pc)		56.827

 		Un-balance
Stress value(%)
40
 
5 Operation data

Item
 		Horizontal
span
(m)		Vertical
Span
(m)		Representative
Span (m)		Angle
º		Height
(m)
KV
 
data5550600/300300/6500~2048/
6 loading data

Site condition 		Normal operation condition Accident condition Installation
condition		Non-uniform
Ice condition
Basic wind speedIce Mini.
temperature		Non-
broken		broken
Climate condition
(t/v/b)		-5/27/0-5/10/10-15/0/0-5/0/10-5/0/10-5/0/10-5/0/10
Horizontal loadingconductor7052619800000907519800
Insulator
Power fitting		7439777000648777
Jump & string13848
 		3132
 		0001530
 		3132
 
OPGW640826520006962652
Vertical loading


 		conductor102949173932102949173932173932102949156186
Insulator
Power fitting		76666901617666690161901617666686787
Jump & string34011452883401145288452883401142424
OPGW10958225131095822513225131095819624
Climate condition
(t/v/b)		-5/27/0-5/10/10-15/0/0-5/0/10-5/0/10-5/10/0-5/10/10
Stress  forceconductorOne side312592360816255000360816360816306123360816
The other side302496360816223336360816108245221376252571
Stress differences10096031664025257184747108245
OPGWOne side54649616295012561629616295396261629
The other side5214855938471055593804583336977
Stress differences250156913020569161629812924652
           



7 Foundation distance size

Nominal
Height (m)		Foundation distance (mm)Anchor bolt
Front
distance		Side
distance		Type and quantityDistance /radius (mm)Material
361470014700
8×M56

 		800
Chinese type
35 steel
391548015480800
421626016260800
451704017040800

8 Foundation force
Nominal
Height (m)		TxTyTNxNyN
3636239722854545483215
3936139323074615493266
4236039023274635463305
4535838623364685463354

9 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 		≤16215125
>16~40205120
>40~60200115
>60~100190110
Q345
Steel 		≤16310180
>16~35295170
>35~50265155
>50~100250145
Q420
Steel 		≤16380220
>16~35360210
>35~50340195
>50~100325185
Q460
Steel 		≤16415240
>16~35395230
>35~50380220
>50~100360210

10 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 		4.8200170
5.8240210
6.8300240
8.8400300
Anchor
 bolts 		Q235160/
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 400kv low profile strain straight line 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.

400kv low profile strain straight line tower

Over 10 years of experience and innovation in engineering, designing and building towers has evolved MEGATRO into its current form:
  1. Full Turn-Key provider including site acquisition, engineering services, manufacturing,   field services-DAS, tech services, value added reseller and monitoring, maintenance and network ownership
  2. Specialize in developing supplying and building wireless and wired networks and in-building telecommunications systems, as well as energy infrastructure
  3. Single source from Design to System Integration
  4. Top quality, ISO 9001 registered
A complete selection of towers including self-support, lattice steel tower, monopoles and guyed towers, form custom-designed radar towers to broadcast towers and energy infrastructure. MEGATRO carries a variety of related products including fall protection, transmission lines, antennas, obstruction lights, and accessories, and other products if client need, MEGATRO also tailored product as per client condition.
MEGATRO mainly design all kinds of towers and posts for:
  1. Telecoms
  2. Power transmission
  3. TV and Radio Broadcast
  4. Roads and City Development
  5. Wind energy solution
  6. Steel structure and workshop

Our complete selection of towers includes:
  1. Self-supporting
  2. Monopoles
  3. Guyed towers
  4. Custom-designed radar towers
  5. Broadcast towers
  6. Power transmission

MEGATRO also designs and manufactures tower related products including:
  1. Fall protection
  2. Antenna brackets
  3. 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
 
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.


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
ISO4628/3 Determination of rust penetration

MEGATRO' 400kv low profile strain straight line tower systems can accommodate a variety of cross-arm. MEGATRO also offers a wide variety of accessories and mounts.   
 
Other information:
Availability size: Based on the customer's requirements.
Material: Chinese material or as per clients requirement
Steel grades
Tower loading legs: Chinese steel Q420B, which equivalent to ASTM A572 GR60
Other webs, bracing and not stress plate and angle steel: Chinese Q235B, which equivalent to ASTM A36
Plates: Chinese steel Q345B, which equivalent to ASTM A572 GR50
Bolts: Bolt quality shall be Chinese Class 6.8 and 8.8, as per our Chinese standard, or ISO 898 standard or ASTM A394 type 0,1,2,3 requirements
The anti-theft bolts shall be Huckbolt Fasteners or approved equivalent.  The fasteners shall be manufactured from high tensile steel A242 or equivalent and hot-dip galvanized in accordance with ASTM specification A153 and A394.
 
Fabrication standard: Chinese Standard or other standard which client accepted
A) Dimension and tolerance for angle are according to GB/T1591-1994, similar to EN 10056-1/2
B) Hot dip galvanization in accordance with GB/T 13912-2002, which similar to ASTM A 123
C) The welding will be performance in accordance with AWS D1.1 or CWB standard
D) All fastener galvanization conform to ASTM A153 requirements.

Package: Both parties discuss before delivery
Port of Loading: Qingdao Port
Lead Time: One month or based on the customer's needs (For time being our capacity about 5000 tons one month, and can meet client requirements)
Minimum order: 1 set


 

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