GJT Triangular Round Steel Lightning Protection Tower for Direct Lightning Strike Protection in Hazardous Explosive Storage Facilities

I. Product Introduction
A lightning protection tower is a common tower-type protective device against lightning strikes. Also known as: lightning rod tower, steel structure lightning rod, tower-type lightning rod. 

There are four specifications of lightning protection towers:
1. GFL four-angle steel lightning protection tower;
2. GJT three-column round steel lightning protection tower,
3. GH steel pipe pole lightning protection tower;
4. GFW lightning protection wire tower. Application Scope
The protection range of a lightning rod tower should be calculated using the rolling sphere method to determine the protection radius and coverage area. Lightning protection towers are mainly used for lightning protection engineering in various buildings, especially in oil refineries, gas stations, chemical plants, coal mines, and flammable and explosive workshops, where timely installation is crucial. Due to climate change and increasing lightning disasters, many buildings now install lightning protection towers, particularly rooftop stainless steel decorative towers, which come in various shapes and styles, with aesthetically pleasing appearances and innovative designs. They are widely used on building rooftops, squares, and green spaces in residential areas, complementing the architecture and becoming iconic decorative structures in cities. The principle of a lightning protection tower is the same as that of a lightning rod, aimed at reducing lightning disasters.

II. Product Features
1. Basic wind pressure: w0=0.4 and 0.7 KN/m²
2. Seismic fortification intensity: areas with intensity 8 and below
3. Uses round steel as the tower column material, with a small wind load coefficient and strong wind resistance.
4. Tower columns are connected with external flanges, and bolts are under tension, making them less prone to damage.
5. Saves steel, has a small base footprint, reduces land use, and facilitates site selection. The tower is lightweight, making transportation and installation convenient.
6. Short construction period. The tower design follows the wind load curve, with smooth lines, making it less likely to collapse in rare wind disasters and reducing casualties. It can also be customized according to the client's drawings, with hot-dip galvanizing applied after overall fabrication.
7. Strictly complies with national steel structure design codes and tower design regulations for lightning rod towers.
8. Structurally safe and reliable. Damage resistance: wind level 10 / earthquake level 6.
III. Lightning Protection Principle
The lightning current receptor is a non-inductive, low-impedance metal inner conductor down conductor that transmits the lightning current to the ground, preventing side strikes and electrification of the protected antenna tower or building. In most cases, the impact of the electrostatic field cable is less than 1/10 of the tower impedance, avoiding electrification of the building or tower, eliminating flashover, limiting ground penetration, and reducing the risk of backflash and induced overvoltage to the protected equipment. The protection range is calculated according to the national standard GB50057-2010 rolling sphere radius method.
IV. Product Parameters:
1. Height: Designed for over 10 meters
2. Weight: >1 ton (specific weight varies by region, with differences between low-lightning and high-lightning areas, coastal wetlands, and western arid regions.)
3. Material: Q235-Q345 round steel
4. Anti-corrosion treatment: Hot-dip galvanizing / cold galvanizing / paint coating
5. Effective service life: Over 30 years
V. Design Basis for Lightning Protection Towers:
1. Code for Design of Lightning Protection in Buildings (GB50057-94)
2. Code for Design of Tall Structures (GBJ135-90)
3. Code for Design of Steel Structures (GB50017-2003)
4. Specification for Construction and Acceptance of Tower Steel Structures (CECS86:2006)