Electrical Engineering for Climate-Neutral Administrative Building

Electrical engineering for the new construction of a climate-neutral administrative building with an approximate footprint of 790 m²: Installation of a 70 kWp PV system, a low-voltage main distribution with 22 outlets and reserve for an emergency power system, power supply for office workstations via raised floor with floor boxes, technical rooms per floor for floor distributors, network and GLT sub-distribution, lighting, sockets, and device connections in general areas, KNX presence detectors in offices for lighting control via KNX-DALI Gateway, 20 Wallboxes (22 kW, adjustable to 11 kW) with load management and one pre-installation for an outdoor parking space in the underground garage, connections for eBike charging units, safety power supply via battery systems with 1 hour of operation for emergency lighting and escape route signage. Telecommunication and information technology systems: Connection to the ITV network with LWL Singlemode fibers OS2, LWL wall housing, connection of three floor distributor rooms each with 8 fibers, passive structured IT cabling (tertiary copper, primary/secondary LWL SingleMode OS2), floor distributor cabinets on ground, 1st, 2nd floors, video intercom system at the main entrance with video surveillance and access control reader, video indoor station at reception. Automatic fire alarm system with flash light, fire department information system, and route maps at the fire attack point, central unit in the basement. Panic alarm at reception with reporting to the police. Supply and installation of: 133 photovoltaic modules 500 Wp, 2 PV inverters 33 kW, 1 low-voltage main distribution (NSHV), 460 m power cable N2XH 5 x 10 mm², 1 low-voltage switchgear as wall distributor type V-U1-04, 20 RCD/MCB 4P 10kA C-20A 30mA type A, 20 Wallboxes 22kW with load management, 3 low-voltage switchgear as wall distributor type S1, 8 low-voltage switchgear as wall distributor type 1, 250 m mesh cable tray 55/150 mm, 1,500 m NHXMH-J 3 x 1.5 mm² Cu, 3,300 m NHXMH-J 3 x 2.5 mm² Cu, 102 motion detectors with 360° detection range for ceiling mounting 8m detection range flush-mounted, 35 KNX ceiling-mounted presence detectors with 360° 8m detection range flush-mounted, 87 LED damp-proof luminaires IP 66 1552 x 102 x 91mm, 141 LED downlights for ceilings with a cavity dimension ≥ 36 mm, 18 light channel systems 2948 x 50 mm for surface mounting (switchable), 54 light channel systems 4700 x 50 mm for suspended mounting with direct light distribution 105 W (digitally dimmable Dali), 1 Bundles FX18 / 10 Rings Flexes central unit, 6 esserbus modules GT (ebMGT) with galvanic isolation, 244 O2T/So multisensor detectors IQ8Quad with integrated warning tone, 800 m halogen-free installation cable J-H(St)H BMK 2x2x0.8, 1 panic alarm control panel, 17,500 m Cat.7a network cable 1500 MHz S/FTP PIMF (duplex), 231 data outlets symmetrical Category 6 Index A.

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