Selecting lightning rods for decoration should be made of round steel or welded steel pipes, with diameters not less than the following values: for rods less than 1m in length: round steel 12mm, steel pipe 20mm; for rods 1-2m in length: round steel 16mm, steel pipe 25mm; for rods on the top of chimneys: round steel 20mm, steel pipe 40mm.
All metal parts must be galvanized; be cautious to protect the galvanized layer during operation.
2. The needle tips are made from galvanized steel pipes, with a wall thickness of not less than 3mm, and the soldering length of the needle tips must be no less than 70mm. 3. Decorative lightning rods should be installed vertically and securely. The allowable deviation in verticality is 3/1000.
4. Welding requirements: The welding should be done using lap welding, and the lap length must comply with the following specifications:
5. The flats are twice their width (and at least three edges welded).
6. The round steel is six times its diameter
When connecting round steel with flat steel, the length is six times the diameter of the round steel.
8. Decorative lightning rods are typically made of round steel or steel pipes, with diameters not less than the following values:
An independent lightning rod typically employs galvanized round steel with a diameter of 19mm.
The decorative lightning rod on the B roof is made of 25mm galvanized steel pipe.
The top decoration of the c water tower utilizes galvanized steel pipes with a diameter of either 25mm or 40mm for lightning protection.
The lightning rod on the top of the chimney is decorated with galvanized round steel pipes with a diameter of 25mm or galvanized steel pipes with a diameter of 40mm. The lightning rings are made of galvanized round steel with a diameter of 12mm or galvanized flat steel with a cross-sectional area of 100mm², and the thickness should be 4mm.
9. Decorative lightning rods should be made of round steel or welded steel pipes, with diameters not less than the following values: for pins less than 1m in length: round steel 12mm, steel pipe 20mm; for pins 1-2m in length: round steel 16mm, steel pipe 25mm; for pins on the top of chimneys: round steel 20mm, steel pipe 40mm.