Learn more about the unique challenges of this interesting project and the solutions that TÜV SÜD provided.
With its 120-meter high chimney, the waste-to-energy plant in Turin has become an iconic feature of the Italian city’s skyline. A striking open-air lift runs up 112 meters into the sky along the incinerator chimney, leading to a roof terrace which is open to the public. The lift, which is manufactured by KONE, travels at a speed of 2.5m/s and is able to bear a load of up to 1,250 kg. In 2014, TÜV SÜD was tasked to conduct a verification of the unit.
Our specialists took all of the system’s particular conditions into consideration during the verification. The panoramic car has walls made from curved glass, which needed to be subjected to specific tests as per Annex J of EN 81-1. Upon our request, the tests were conducted, after which the certificates were checked. As the machine room is located at the very top of the chimney, access is only possible through a vertical fixed ladder protected by cages. We conducted a risk analysis to determine the security level of the path to the machine room.
An exposed lift shaft is also subject to problems caused by notable environmental conditions that can complicate operational safety. A strong wind may cause the compensation chains to oscillate, which could cause kinking of the rail brackets from impact with the chains and, consequently, very dangerous jostling of the cabin. To reduce wind-related risks, the TÜV SÜD experts requested a modification of the chains and the addition of a wind speed meter connected to the control room that stops the lift in the event of high winds.
As rain can cause electrical problems, corrode guide rails and damage hydraulic buffers, TÜV SÜD conducted a check on the IP level of the doors. To guard against rain damage, the experts recommended additional maintenance measures for the checking and lubrication of the mechanical parts, protective bags on the hydraulic buffers and a drainage system to keep the pit from filling with water.
Through these measures, the lift was verified to be safe for operation according to the Lift Directive 95/16/EC.