High mast with climbing ladder and top platform
Description
Particularly employed in lighting stadium and ports field in general.
Our masts with height from 16 to 50 meters, are designed and manufactured with sections suitable to the required performances and they are provided with fixed top platform on top and climbing ladder according to the safety standard.
High mast with ladder and fixed platform, manufactured under certified quality check according to ISO9001 by authorized processing center according to DM 14/01/08, composed of:
Monotubular tapered shape shaft with polygonal cross section in several section joined by forced overlapping, Manufactured cold forming of trapezium of pressed steel plate EN 10025 and subsequent external longitudinal welding carried out by approved automatic process (submerged arc) and welding check according to EN ISO 3834.
Provided to be fixed to the basement by direct burying, or with base plate and anchor bolts, and provided at base with cable entry slot and earth device.
Tolerances on dimensions UNI EN 40/2 - UNI EN 10051.
Climbing ladder with lined steps and safety cage starting from m 2.50 above ground, made of hot dip galvanised steel profiles and manufactured according to the safety standard . ladder is composed of a central T rail 50x50 where the antislidding step with rough surface are welded; the ladders sections will be fixed to the shaft by means of purposed made clamps and bolts. The rings and the vertical rod of the safety cage are composed of strong steel plate strips and they are fixed to the ladder by means of screws .
Upon request ladder without safety cage, with safety device which slides on a rigid rail or on a rope.
Middle resting plate every 9 ladder. Dealing with considerable differences in height, the ladder is devised in several sections by means of 1 or 2 resting plate with access doors, parapets and catwalk in antislidding stretched steel.
Top platform suitable to support the foreseen number of floodlights, made of steel profiles according to the safety standard. Composed of catwalk in strong antislidding stretched steel with parapets and crossbars for floodlights fixing to be fixed on top by socket joint and bolts
All steel structural components complying to CE, are manufactured according to EN 1090 execution class ECX2, certified by third party according to European regulation UE 305/2011.
Protection against corrosion by means of hot dip galvanisation obtained with the following cycle: degreasing; pickling, washing, fluxing, pre heating; hot dip galvanization in melted zinc bath at 440÷450°, with minimum percentage of zinc into the bath ³ 98.5%. Coating obtained according to UNI EN ISO 1461 with minimum thickness 55 microns et average 70 microns.
External painting, if any, with colour from our colour card, rough effect, obtained with thermosetting powders cycle including: cleaning from zinc coating burs; smoothing of the surfaces by means of a light mechanic device; cleaning of the surfaces in order to eliminate grease or dirty and create a good adherence base; application by means of electrostatic spray of polyester powder suitable for galvanized surfaces for outside installation, in order to reach 60/80 micron thickness; polymerization into oven at constant temperature of approx. 200° for 40-50 minutes, package for each column, by banding with tissue 100% polyester, (no pluriball), in order to avoid damages during the handling phase. The characteristics of the obtained coat will be: average thickness 60 micron, resistance to checkering test ISO2409, resistance to crash test to UNI8901
To the design the high masts the following data are needed to be known:
– design wind speed
– Arrangement of the surrounding landscape, that is ground roughness category
– height up to the lighting source
– number, type, dimensions and weight of the floodlights to be installed
– floodlights arrangement (on one side 180°; or all around 360°)
Standard
Mast provided to be fixed to the basement by direct burying.
