A lightning rod tower is a common type of lightning protection device in the form of an iron tower. Also known as: lightning rod tower, steel structure lightning rod, tower-type lightning rod. There are four specifications of lightning rod towers: GFL four-column angle steel lightning rod tower; GJT three-column round steel lightning rod tower; GH steel pipe rod lightning rod tower; GFW lightning wire tower.
All metal parts must be galvanized; protect the galvanized layer during operation.
2. The needle tips are made of galvanized steel pipes with a wall thickness not less than 3mm, and the soldering length of the needle tips must not be less than 70mm. 3. The lightning rod tower should be installed vertically and securely. The allowable deviation in verticality is 3/1000.
4. Welding requirements: The welding should be performed using lap welding, and the lap length must comply with the following specifications:
5. The flat steel is twice its width (and has at least three welded edges).
6. The round steel is 6 times its diameter.
7. When connecting round steel with flat steel, the length should be 6 times the diameter of the round steel.
8. Lightning rods are generally made of round steel or steel pipes, with diameters not smaller than the following values:
A single lightning rod typically consists of a galvanized round steel tube with a diameter of 19mm.
The lightning rod on the B roof is made of 25mm diameter galvanized steel pipe.
The lightning rod on the top of the c water tower is made of galvanized steel pipe with a diameter of 25mm or 40mm.
The lightning rod on the top of the chimney is made of galvanized round steel with a diameter of 25mm or galvanized steel pipe with a diameter of 40mm. The lightning ring is constructed with galvanized round steel with a diameter of 12mm or galvanized flat steel with a cross-section of 100mm, with a thickness of 4mm.
9 Lightning Rods should be made of round steel or welded steel pipe, with diameters not less than the following: for needles less than 1m in length: round steel 12mm, steel pipe 20mm; for needles 1-2m in length: round steel 16mm, steel pipe 25mm; for needles on the top of the chimney: round steel 20mm, steel pipe 40mm.
