2019年9月16日星期一

How to choose a tower type

There are in general four major consideration when selecting the type of tower for your deployment:

Antenna load
Tower footprint
Height of tower
Budget


Antenna load
The antenna loading capability of a tower depends on the structure of the tower. The more surface area of antennas, coaxial cables, brackets and other equipment mounted on the tower and exposed to the wind, the more robust tower is required.
To make sure that your equipment adds a load less than that maximum allowed value for your tower, you must estimate the effective wind load for your equipment.
The wind load is proportional to the area of the exposed structure and to the distance from the attachment to the ground. Curved and perforated shapes (grids and trusses) offer less wind resistance and are therefore preferred to achieve a low wind load. Solid dishes are quite vulnerable to wind load and should be avoided in windy environments.
The average wind speed of the site must also be taken into consideration. The average wind speed depends on where on the earth the site is located, the altitude and type surroundings (rural or city). Online statistical data is available from meteorological institutes.
There are many ways to calculate the wind load, some are better than others. The “latest” and probably most accurate method is specified in the latest IEA­222 standard specification.

Tower footprint
The footprint of a tower is the amount of free space on the ground that is required for the installation. Depending on the structure of the tower, it requires more or less space for installation.
For tall guyed masts (>100feet, 30m), each guy anchor is typically 10­15m from the base of the mast. For a mast with 3 guy wires per level, that results in a footprint of approx. 90­200m2 .

Height of tower
If you need a structure that is less than 40 feet, you can in fact eliminate the expense and additional work that is required for guying it. Instead you can bracket mount the tower to a house or garage roof even.
As mentioned earlier, adding guys cables to a structure will allow higher height.

Budget
A general rule of thumb is:
“The smaller the tower base, the more costly to purchase and install the tower”
Monopoles have the smallest footprint of all towers, and is hence the most expensive type of tower to install. It is followed by self supported towers and then guyed masts which require the largest footprints.
Additionally, depending on the tower type you choose, certain tools, machinery and cranes are needed to assemble the tower which must be taken into consideration in the final budget.



How to choose a tower type

How to choose a tower type

There are in general four major consideration when selecting the type of tower for your deployment:

Antenna load
Tower footprint
Height of tower
Budget


Antenna load
The antenna loading capability of a tower depends on the structure of the tower. The more surface area of antennas, coaxial cables, brackets and other equipment mounted on the tower and exposed to the wind, the more robust tower is required.
To make sure that your equipment adds a load less than that maximum allowed value for your tower, you must estimate the effective wind load for your equipment.
The wind load is proportional to the area of the exposed structure and to the distance from the attachment to the ground. Curved and perforated shapes (grids and trusses) offer less wind resistance and are therefore preferred to achieve a low wind load. Solid dishes are quite vulnerable to wind load and should be avoided in windy environments.
The average wind speed of the site must also be taken into consideration. The average wind speed depends on where on the earth the site is located, the altitude and type surroundings (rural or city). Online statistical data is available from meteorological institutes.
There are many ways to calculate the wind load, some are better than others. The “latest” and probably most accurate method is specified in the latest IEA­222 standard specification.

Tower footprint
The footprint of a tower is the amount of free space on the ground that is required for the installation. Depending on the structure of the tower, it requires more or less space for installation.
For tall guyed masts (>100feet, 30m), each guy anchor is typically 10­15m from the base of the mast. For a mast with 3 guy wires per level, that results in a footprint of approx. 90­200m2 .

Height of tower
If you need a structure that is less than 40 feet, you can in fact eliminate the expense and additional work that is required for guying it. Instead you can bracket mount the tower to a house or garage roof even.
As mentioned earlier, adding guys cables to a structure will allow higher height.

Budget
A general rule of thumb is:
“The smaller the tower base, the more costly to purchase and install the tower”
Monopoles have the smallest footprint of all towers, and is hence the most expensive type of tower to install. It is followed by self supported towers and then guyed masts which require the largest footprints.
Additionally, depending on the tower type you choose, certain tools, machinery and cranes are needed to assemble the tower which must be taken into consideration in the final budget.



How to choose a tower type

Tower location


When selecting the physical location of the tower/mast, there are a set of things that you should bear in mind. Naturally, you must make sure that you have the necessary free space on the ground where the tower will be placed. Check the specifications of the tower/mast that you aim to purchase for the size of the footprint.

The ideal site for a tower/mast is a flat, level field. However, any reasonably level space, in which there is sufficient space for the base foundations, can be utilized. The site should be free from obstructions like trees and buildings. Not only the spot for the tower needs to be clear, also the surrounding area as you will need some free space when assembling the tower.

Do not forget that trees have roots. Digging a hole through a massive root system is not a dream.

Medium sized and tall towers/masts normally require massive digging since concrete foundations must be put in place. Always call for underground utilities check to make sure that there is no infrastructure dough down at the place you have planned for your tower/mast.

Also, if the tower is high, always check with the regulators in the country if you need to apply for a license and/or register the tower to any authority. If the site is close to an airport, there are special regulations that need to be followed.

Tower location

Transmission tower for sale, professional Transmission tower manufacturer

Deshi Tower is a company specialising in manufacturing various galvanized steel structures including Lattice Angle Tower, Steel Tube Tower, Substation Structure, Radio & Television Tower, Camouflage tower, Communication Tower, Wind Power Generator Tower, Solar Bracket and High-Speed Train Power Transmission Bracket used for transmission lines up to 1100kV.



Transmission tower for sale, professional Transmission tower manufacturer

2019年9月15日星期日

wireless tower for sale,professional wireless tower manufacturer

 
MaterialSteel 
Quality Control ISO/GB/CWB
Height According to drawings
Surface TreatmentHot Dip Galvanization and Professional Anticorrosion
ColorAs per customer request
ConnectionBolts and Nuts
Quality StandardISO9001:2008/GB/T19001-2008
Welding StandardCWB/GB50661-2011
Galvanization StandardGB/T2094-2018
Deshi Tower is a company specialising in manufacturing various galvanized steel structures including Lattice Angle Tower, Steel Tube Tower, Substation Structure, Radio & Television Tower, Camouflage tower, Communication Tower, Wind Power Generator Tower, Solar Bracket and High-Speed Train Power Transmission Bracket used for transmission lines up to 1100kV.
Our Advantages
1. Strict quality control system and abundant technical reserves have created world-class products.
2. The factory has completed tens of thousands of project cases so far, so that we have a wealth of technical reserves;
3. Facilitating supports and low labor cost make the product price have great advantages in the world.
4. With a number of patented technologies and a mature drawing and drawing team, you can rest assured of your choice.
5. China Power Grid Certification Level 1 supplier, you can safely choose and cooperate;
6. We are not only manufacturers and suppliers, but also your partners and technical support.



wireless tower for sale,professional wireless tower manufacturer

Waist-type tower for sale,professional Waist-type tower manufacturer

 
This is the most common type of transmission tower. It's used for voltages ranging from 110 to 735 kV. Because they're easily assembled, these towers are suitable for power lines that cross very uneven terrain.
MaterialSteel 
Quality Control ISO/GB/CWB
Voltage Grade10-1100KV
Height According to drawings
Surface TreatmentHot Dip Galvanization and Professional Anticorrosion
ColorAs per customer request
ConnectionBolts and Nuts
UsagePower transmission and distribution
Quality StandardISO9001:2008/GB/T19001-2008
Welding StandardCWB/GB50661-2011
Galvanization StandardGB/T2094-2018
Deshi Tower is a company specialising in manufacturing various galvanized steel structures including Lattice Angle Tower, Steel Tube Tower, Substation Structure, Radio & Television Tower, Camouflage tower, Communication Tower, Wind Power Generator Tower, Solar Bracket and High-Speed Train Power Transmission Bracket used for transmission lines up to 1100kV.
Our Advantages
1. Strict quality control system and abundant technical reserves have created world-class products.
2. The factory has completed tens of thousands of project cases so far, so that we have a wealth of technical reserves;
3. Facilitating supports and low labor cost make the product price have great advantages in the world.
4. With a number of patented technologies and a mature drawing and drawing team, you can rest assured of your choice.
5. China Power Grid Certification Level 1 supplier, you can safely choose and cooperate;
6. We are not only manufacturers and suppliers, but also your partners and technical support.

Waist-type tower for sale,professional Waist-type tower manufacturer

transposition tower for sale,professional transposition tower manufacturer

 
In electrical power transmission, a transposition tower is a transmission tower that changes the relative physical positions of the conductors of a transmission line in a Polyphase system. 
MaterialSteel 
Quality Control ISO/GB/CWB
Voltage Grade10-1100KV
Height According to drawings
Surface TreatmentHot Dip Galvanization and Professional Anticorrosion
ColorAs per customer request
ConnectionBolts and Nuts
UsagePower transmission and distribution
Quality StandardISO9001:2008/GB/T19001-2008
Welding StandardCWB/GB50661-2011
Galvanization StandardGB/T2094-2018
Deshi Tower is a company specialising in manufacturing various galvanized steel structures including Lattice Angle Tower, Steel Tube Tower, Substation Structure, Radio & Television Tower, Camouflage tower, Communication Tower, Wind Power Generator Tower, Solar Bracket and High-Speed Train Power Transmission Bracket used for transmission lines up to 1100kV.
Our Advantages
1. Strict quality control system and abundant technical reserves have created world-class products.
2. The factory has completed tens of thousands of project cases so far, so that we have a wealth of technical reserves;
3. Facilitating supports and low labor cost make the product price have great advantages in the world.
4. With a number of patented technologies and a mature drawing and drawing team, you can rest assured of your choice.
5. China Power Grid Certification Level 1 supplier, you can safely choose and cooperate;
6. We are not only manufacturers and suppliers, but also your partners and technical support.

transposition tower for sale,professional transposition tower manufacturer

How to choose a tower type

There are in general four major consideration when selecting the type of tower for your deployment: Antenna load Tower footprint Height of t...