Urban lamp post

contemporarygalvanized steelLED

Types of Column - Stepped Tubular Steel Now the most frequently used column for conventional street lighting because of the lower price, consisting of a constant diameter column shaft with a larger diameter base compartment. The change in diameter is achieved by means of a short taper, frequently known as the shoulder. The angle of taper varies for different manufacturers and processes. The majority of columns have a single reduction although there are examples of two or more. Conical or Octagonal A constant taper circular section or a folded sheet polygonal section, which can be a regular or irregular polygon, generally with eight sides are quite common and can perform better in high wind exposure areas. A circular section with a constant diameter base compartment and a variable diameter shaft is also available. Types of Protection - Hot Dip Galvanizing Now the most frequently used corrosion protection system for steel lighting columns due to its sacrificial properties and its equal protection to the internal and external surfaces of a column. Galvanizing is carried out to BS EN ISO 1461. In the last ten years it is claimed that the life of the galvanized coating has doubled due to the reduction of airborne pollutants and the halving of the rate of loss of thickness. Painting There is a very large range of different painting systems that can be applied to bare steel, aluminium sprayed surfaces or galvanised surfaces. In coastal areas such painting can also further protect the galvanising from the continuous sea salt spray. Root Protection