Contract notice Structures and Parts of StructuresMachine housings office containersDescription Delivery and installation of 5 machine housings on the ground floor and 5 office containers as upper floor in two storey execution as 2 individual buildings inside the hall Delivery and installation of 2 machine enclosures in measuring rooms on the second floor of the existing building These are laser protected enclosures as shown in the LV or in case of deviations according to DIN 60825 4 All electrical installations must be designed according to ATEX directives Zone 1 and 21 to avoid effective sources of ignition For the MU 1 5 soundproofing according to LV has to be provided in order to limit the noise pollution outside the housings Sound insulation from 63 68dB for example 2 x 12 5 Knauf SilentBoard noise source 75 dB inside insulate 40 dB outside For the ventilation gas and cooling water installation cut outs must be produced according to the instructions of the construction management The existing hall floor is used as the floor for the machine housings Requirement for walls with regard to laser safetyIn continuously monitored operation inspection interval10s for the predictable maximum irradiation required The maximum power used is 4kW and for a collimated beam the beam diameter for the optics used is 40 mm Sample materials and thicknessesMaterial Minimum thickness for wall constructionMaterial Minimum thickness in mmPressboard 18Aerated concrete 50Plasterboard 15Gypsum fiber 15Pure metallic walls made of steel or aluminum should be avoided as they do not have sufficient stability for large beam diameters doubleDesigns are to be considered in individual cases The office space on the machine enclosures should be provided with a glass enclosure to allow a clear view of the hall and be adapted to the existing stock Time limit for receipt of tenders or requests to participate Date 11 07 2019 Local time 10 00 Disclaimer The above text is machine translated For accurate information kindly refer the original document
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