Dead End Tension Strain Towers | Overhead Line Power Transmission Lines

A dead-end tower (also anchor tower, anchor pylon) is a fully self-supporting structure used in construction of overhead power lines. A dead-end transmission tower uses horizontal strain insulators at the end of conductors. Dead-end towers may be used at a substation as a transition to a "slack span" entering the equipment, when the circuit changes to a buried cable, when a transmission line changes direction by more than a few degrees, or at intervals along a straight run to limit the extent of a catastrophic collapse.

A strain pylon and an anchor portal

Since dead-end towers require more material and are heavier and costlier than suspension towers, it is uneconomic to build a line with only self-supporting structures.

Dead-end towers are used at regular intervals in a long transmission line to limit the cascading tower failures that might occur after a conductor failure. An in-line dead-end tower will have two sets of strain insulators supporting the lines in either direction, with the lines connected by a jumper between the two segments. Dead-end towers can resist unbalanced forces due to line weight and tension, contrasted with suspension towers which mostly just support the conductor weight and have relatively low capacity for unbalanced load. Dead-end towers may use earth anchor cables to compensate for the asymmetric attachment of the conductors. They are often used when the power line must cross a large gap, such as a railway line, river, or valley.

Dead End Tension Strain Towers  | Overhead Line Power Transmission Lines

Dead End Tension Strain Towers  | Overhead Line Power Transmission Lines: Detail Fabrication and Erection Drawings

Dead End Tension Strain Towers | Overhead Line Power Transmission Lines: Erection Sequence

Dead End Tension Strain Towers  | Overhead Line Power Transmission Lines:ACSR Conduct Insulator Connections with Steel Crossarms

Dead End Tension Strain Towers  | Jumper Conduct At the external angle side and Earthing Strand wire Connections with Steel Crossarms

Dead End Tension Strain Towers  | Dead end Tower Lead-down installation details: The detail installation of this scope shall be integrated with the substation gantry/underground cables and shall be carried out by site installation team at their own discretion, we hereby only offer some typical treatment for client reference

Dead End Tension Strain Towers  | Dead end Tower Lead-down installation details: The detail installation of this scope shall be integrated with the substation gantry/underground cables and shall be carried out by site installation team at their own discretion, we hereby only offer some typical treatment for client reference

Dead End Tension Strain Towers  | Overhead Line Power Transmission Lines: Operation After Erection

ABOUT US


After more than 20 years’development, ZHM Huawu Steel now is group company dedicated on total solutions for electricity projects covering survey, design, manufacture, complete equipment supply, construction, operations, maintenance, investment and so on.ZHM Huawu Steel actively devote to power grid construction, participated in all UHV construction projects and made an outstanding contribution to UHV transmission lines of China.
 
Since 2014,  ZHM Huawu Steel has been actively developing international business, successively developped the markets of Europe, America, Africa and Southeast Asia. With strong technical support and on-site service capability,  ZHM Huawu Steel has saved a lot of project costs for customers and won their recognition.

Production Capacity

Minimum Order Quantity : Negotiation
Price : Negotiation
Packaging Details : Standard National Packing Method
Delivery Time : Depends on the quality of client
Payment Terms : 30% advanced payment , 70% balance payment before shipment.
Supply Ability : 4000 Ton/Tons per Month
Brand Name: ZHM Huawu Steel
Certification:  ISO9001,CE


Detail Information
 
Place Of Origin: China
Model Number: ZHM-ST052
Matieral: Steel Q235B/Q345B/Q420
Usage: For High Voltage Transmission Lines And Blow Transmission Line
Function: As A Frame Base Structure
Standard: Design As Customers' Requirements
Related Product: Steel Tower Bolts And Nuts
Application: Power Line Transmission
Quality Inspectation: ISO9001,CE
High Light: Iso Certificated Lattice Steel Towers, Q235B Lattice Steel Towers, Iso Certificated Lattice Towers  Dead End Tension Strain Towers for Overhead Line Power Transmission Lines(OHTL)

Product Description

Product Name: Transmission line angle steel lattice tower
Material: Steel Q245/Q355/Q420
Brand: ZHM Huawu Steel
Colour: Customized
Surface treatment: Hot Dip Galvanised as per BS/EN/ISO 1461 or ASTM A123
Place of Product:China
Voltage Grade: 33kV-330kV
Certification:ISO9001:2015
Wind Speed: 120KM/H
Lifetime: More than 30 Years

Dead End Tension Strain Towers  | Overhead Line Power Transmission Lines: Storage of Raw materials ready for production

Dead End Tension Strain Towers | Overhead Line Power Transmission Lines: Workshop production On-going

Dead End Tension Strain Towers | Overhead Line Power Transmission Lines: Projects Packaed Ready For Shipment

Dead End Tension Strain Towers | Overhead Line Power Transmission Lines: Projects Packaed Ready For Shipment

Dead End Tension Strain Towers | Overhead Line Power Transmission Lines: High strength erection Bolts/Nuts/washers

Detailed Images

Steel raw materials

Our company adopts raw materials from large-scale steel mills which certified by the state , and strictly controls the quality of raw materials .

Advanced equipment

 The company uses advanced equipment and trained workers to ensure product quality .  
 
Hot-dip galvanized bolts and nuts


All the iron towers produced by our company have matching hot-dip galvanized bolts and nuts. All the screws in the height of 9 meters from the ground for the poles and towers and the connecting steel bolts below the cross arm are all anti-theft bolts to solve the problem of theft prevention of the poles and towers .


2. International Certificate

ASTM,RETIE,Nch203,Costa Rica ASTM,EPC,TCL,ect.

3. After-Sale Service

Technical Support

Technical support on pre-sales stage. ZHM Huawu Steel has own survey and engineering company with more than 100 engineers. We have special pre-sales engineer to work with customer at early stage of the project.
 

Design and Consultant

Dead End Tension Strain Towers  | Overhead Line Power Transmission Lines: Supervision of site installations

Supported by both domestic engineering company， ZHM Huawu Steel could provide technical consultant and design service within our scope of work.  The Design is based on ASTM protocols meantime with GB material standard, which will reduce the weight, and avoid the replacement on the profiles to save the working time.

Package

Set-wisely packing or member-wisely packing as per client's requirements.

Global-network map

Dead End Tension Strain Towers | Overhead Line Power Transmission Lines: Global Customers and Partners: 

ENDE,ENEL,Claro, Celec, Cnel, Arteche, Engie, PowerChina,Prodiel, Cobra, TSK,Voith,Enerpetrol,S.A,Siemens Energy, Elecnor, RED,Aldesa,VT,Kalla,Grupo ICE,Inproel S.A., Electroval,EPM,Enemek,Societe Nationale D'Electricite, Tigo, Selegsa,National Grid, Enosa, Inginex,Siselec, AEE,Sadeven,TS Transformers, Electric Supply LLC, Ethoran, EnergiAPD,Engemas, Grupo SAESA, LTL Holdings, Energys, Esemec, Isotron.etc.

Why ZHM Huawu Metal Dead End Tension Strain Towers  ?

Reliable and Customized Designs	Cutting Edge Designing Process	Free Online Price System	Easy Bolt-by-number Assembly
Over Two Decades of Experience	Value For Money	Unmatched in Quality and Craftmanship	Excellent Customer Service

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HOW CAN WE HELP YOU?

ZHM’s world-class team — together with our raw material suppliers and subcontractors — works to solve your most challenging design, engineering, farbrication or construction issues.

Contact ZHM by telephone at +86 135-8815-1981 (wechat and whatsapp) or send us your questions via email to info@zhmsteelworks.com