Hungary – Construction work – Péczeli József Ált Iskola és AMI infrastr. fejl.

TOP_PLUSZ-3.3.3-23-BO1-2024-00039: Péczeli József Általános Iskola és AMI infrastructural development. Partial renovation and reconstruction of the general school building. The usable floor area of the building: 2033 nm. By reconstructing and renovating the existing general school water block system and auditorium, a school meeting today's requirements will be established. It is necessary to make minor layout changes to the building affected by the construction. A barrier-free WC will be established on the ground floor, and the school canteen will be merged with the adjacent corridor, resulting in a more spacious canteen. Furthermore, the boys'/girls' gym changing room, the auditorium, the entrance building section, and the ground floor and first floor WC blocks will be renovated. The water blocks require complete electrical and building services renovation, as well as new floor and wall coverings, and painting/coating. The facade will be newly painted, and the base will be insulated. Next to the main entrance, a barrier-free lifting platform is necessary for the mobility-impaired. A new electrical wiring system and fittings will be installed in the building. A new drinking and wastewater system will be installed in the building. Architecture: - Façade renovation works: The staircase at the entrance will be demolished and a new staircase with anti-slip stone cladding and a railing will be built. Next to the resting area, a barrier-free lifting platform will be installed for the mobility-impaired. The base insulation was omitted during the previous renovation, and we would like to rectify this deficiency. After repairing the façade plaster, new façade painting will be done. - Interior renovation works: The existing building layout will be slightly modified, with wall demolitions and new partition walls according to the plans. The partition between the canteen and the corridor will be demolished, thereby increasing the canteen area. A barrier-free WC will be established from the girls' WC antechamber and the teachers' WC on the ground floor. Both on the ground floor and on the first floor, the WC blocks will undergo complete architectural, building services, and electrical renovation. Furthermore, one classroom on the ground floor will be made barrier-free. In the auditorium, the floor structure (sagging, uneven) will be demolished and a new layer structure will be established, and the remaining rooms will have a base levelling. The renovated rooms will receive new coverings, paintings/coatings. The electrical and building services fittings will also be established and built according to today's requirements. The built-in cabinets in the corridors will receive new doors. Electrical works: During the material works, the water block on the two floors of the study building, the changing rooms for both sexes in the gym building, and the first floor WC will be renovated and reconstructed. The architectural and building services works affect the auditorium area, so here the existing luminaires will also be replaced. The existing electrical network of the affected rooms will be demolished, and a new network will be established with modern electrical fittings. During the partial renovation of the building, the connection capacity will not change or will slightly decrease. Due to the modern LED luminaires, a 20-25% saving could be expected compared to the current fluorescent lighting, however, due to the higher lighting requirements given by the current standards, some of this will be lost, so in our plans we assume that the building's current connection capacity will remain. Accordingly, it was not necessary to submit a capacity request to MVM-ÉMÁSZ during the preparation of the material plans, and it was not possible to request a technical-economic information. The existing distributors will not be planned for renovation or replacement as part of the material works, they will continue to serve the affected circuits now and after the renovation works. It should be noted that the distributor cabinets – and the entire existing electrical network of the building – are in a very dilapidated state. The original electrical system of the building, which is almost 50 years old, is in continuous use, with an out-of-standard aluminium-wired network for decades. Minor renovations primarily affected the luminaires, but the distributors and wires forming the supply system are 50 years old. The connections were made with a single possibility of twisted preparation at the time of installation, which poses a fire hazard and significantly increases network losses. It is useful from the building's point of view to partially replace the lamps according to the material plans, but this is not the biggest problem with the building's electrical system. However, the material renovation does not extend to the electrical supply system, it did not fit within the scope of the tender. The new electrical wiring specified in the material plans is planned to be started from new distributors. For this purpose, a cabinet mounted on a wall will be prepared in the electrical room on each floor. Its supply will be provided by a 3p 25A small automatic device to be installed in the existing floor distributor with a NYM-J 5x6 mm2 small cable. A Mkh 6 mm2 wire and cable lugs were included in the budget for the small automatic connection. The planned floor distributors (B-1-2 labelled) contain the small automatics of the planned circuits. The dugal circuits are protected by a 30 mA current-limiting switch. A 32A load sectionaliser will be installed in the feeder branch for disconnecting the distributor cabinet. Similarly, a 3p+N 2-stage lightning current limiter will be installed in the feeder branch. The corridor lighting must be implemented by motion sensors controlling the lighting in public buildings according to the valid regulations. For this purpose, an FV labelled small distributor will be planned at the designated points of the given corridor sections. It will operate with a 2p contactor and a three-position control switch. The contactor will be controlled by the motion sensors connected in parallel in the "aut" position of the three-position switch. This will be the operating state. Since the motion sensor can also be adjusted to natural light, it will be capable of operating in all respects with continuous motion sensor-controlled lighting.