Germany - Installation of electrical systems

Description

- Heavy current installations;- Own power supply systems;- Power supply systems;- Cable laying systems;- Cables and lines;- Installation systems;- Sun protection;- Lighting systems;- Equipotential bonding / earthing;- Information and communication systems;- Fire alarm / house alarm systems;- Voice alarm systems;- Building cabling / EDP;- Video systems;- Call systems;- Radio systems;- Outdoor systems;- Breakthroughs, slots, drillings;- Fire bulkheads.
Description of the situation and development The planned new building of the community school Kellinghusen is to be placed on a construction site north of the main school building (component B) within the so-called school forest. The outermost eastern edges of the building are approximately in alignment with the eastern facade of the existing building of the former secondary school. A distance to the Luisenberger Straße running north will be kept in order to preserve the existing green corridor as far as possible. To the west, the sports field forms the boundary of the construction site. Planning and execution of the installations will be carried out in accordance with the following essential standards, regulations and requirements:1. Landes Bauordnung (LBau)2. Standards series DIN/VDE0100 - Erection of power installations with nominal voltages up to 1000 V3. Standard DIN/VDE 0108 - 100 - Power installations and safety power supply in buildings for crowds of people4. DIN VDE 0828 Electroacoustic emergency systems5. EN 12464 Lighting with artificial light6. Guideline for cable systems LAR7. DIN VDE 0185 Lightning protection systems8. Workplace guidelines and regulations9. TR Schools 2016Performance determinationThe following values were determined for the power requirement:Power requirement: Pw2 = approx. 300 kW442 Own power supply systemsSafety lighting system, According to BGR 216, ASR 7/4 and EN 1838, DIN 4844 and HBauO, the building section is equipped with a safety lighting system. Natural smoke and heat exhaust ventilation systems (NSHEV).UPS supply Voice alarm systems SAA (ELA).443 Low-voltage switchgearThe distribution boards are provided as type-tested low-voltage switchgear combinations according to DIN / VDE 0660, part 500 and contain all fuse, switching and control devices, which are wired ready for connection on terminals.NSHVThe low-voltage main distribution board (NSHV) is planned on the ground floor in a special technical room (according to EltBauR). Sub-distributionsThe UV sub-distributions supply the electrotechnical consumers in their respective supply areas.The fuses of the respective outgoing feeders are based on DIN VDE 0100, part 430 or DIN VDE 0298, part 2.444 low-voltage installation systems. The services of this title include switchgear, sockets, electrical appliances as well as the complete cabling and cable and wire routes of the house including the installation of the necessary equipment. All cables and lines that lead to the distribution boards and to the consumers such as lights, sockets and other devices are mainly designed as halogen-free sheathed cables (NHMH). Control cables are also planned as halogen-free cables (J-H(St)H). Fire protection measuresAll cable bushings and ceiling penetrations which cross fire compartments or components with fire resistance duration must be designed as fire bulkheads.445 Lighting systemsThe lighting system is designed in accordance with the workplace directive "Artificial Lighting" of 1 October 1993 III b 2-34507, EN 12464, AMEV.Escape sign and emergency luminaires are used for lighting the escape routes (stairs and corridors).Escape sign luminaires are designed using energy-saving LED technology.446 Lightning protection and earthing systemEquipment with earthing, lightning protection and equipotential bonding system in accordance with:DIN VDE 0185DIN VDE 0800ENV 61024Design revision 2014A lightning protection system of lightning protection class III is planned.449 OtherNRWG systemsNatural smoke and heat extraction systems NRWG, (formerly RWA) are used in stairwells. They are triggered via the smoke detectors integrated in the systems and via manual release buttons. NSHEVs are planned and achieved as an approved overall system by the building construction trade.

Opportunity closing date

10 December 2020

Value of contract

to be confirmed