LIGHT TOWERS

It is the product for sports lighting for small and large facilities or for illuminating large areas, featuring a climbing system via ladder and a top platform where lighting fixtures are installed. The setups at the top are designed for maximum versatility of use, from large stadiums to small sports fields, for both symmetrical and asymmetrical projectors. The climbing ladder is designed to be used with both guardrail protection and a fall arrest system with safety harness. Decades of experience in the design and construction of these structures, at both national and international levels, provide customers with a specific solution for every technological and lighting requirement.

The stem, based on the height of the tower, is composed of multiple trunks, of shape truncated-pyramidal with polygonal section, made of steel sheet with folded and longitudinally welded. The different logs are coupled in situ by means of overlap joints using the ‘slip on joint’ method. The process of welding the logs ensures compliance with the standards UNI EN ISO 15609 and CNR UNI 10011. It should be noted that the welding process involves, unless otherwise specified by the customer, 100% penetration of the log grafts and at least 80% penetration of the remaining length of the logs. A special opening, equipped with a vandal-resistant door, allows access to the equipment, located inside the tower, to facilitate the control maneuver and the hooking/unhooking of the movable crown beacons.

The three-arm lifting head, made of steel sheet metal or aluminum alloy, is located at the top of the shaft and connected to it by means of a flange joint. The head houses the pulleys for redirecting the suspension ropes of the mobile crown and the power cables of the projectors, along with devices to prevent the ropes and cables from slipping off and twisting. The head is also equipped with a mechanism for attaching and detaching the mobile crown.

The three-arm dragging head, made of steel sheet or aluminum alloy, is positioned on top of the stem and connected to it by a flange joint. The head accommodates the pulley boxes for the hanging ropes of the movable crown and the projector leads together with the devices to prevent derailment of the ropes and cables and their twisting. The head is also equipped with a device for the attachment and release of the movable crown.

Three 120° stainless steel ropes at the drawbeams of the driving head enable the
movable crown to be moved. The ropes are attached at one end to the crown and at the other end to a harvesting device (distributor) that allows them to be correctly
tensioned and balanced.

the following materials are to be used for the different structural elements of the
tower:
stem: steel S355 JR (Fe 510 b) UNI EN 10025;
base flange: S355 JR steel (Fe 510 b) UNI EN 10025;
carpentry: steel S235 JR (Fe 360 b) UNI EN 10025;

All steel components shall be protected against surface corrosion by hot-dip galvanizing in a molten zinc bath in accordance with EN ISO 1461.

Mobile-crown tower’s system is equipped with the following safety devices: mechanical coupling device of the movable crown to the moving head consisting of n° 3 coupling elements which release the suspension ropes during normal operation; centering and anti-rotation device of the movable crown consisting of n° 3 elements which, during normal operation of the tower, prevent any movement on the horizontal plane; safety chain linking, within the stem, the distributor to the base of the tower preventing, during normal operation, uncoupling of the movable crown from the dragging head in case of exceptional events.