

HOAI System Group 4: Power Systems
The DAMBAN Engineering Office supervises System Group 4 of the Mechanical, Electrical and Plumbing (MEP) systems within the framework of planning and engineering services, according to HOAI, which is simultaneously designated as Cost Group 440 according to DIN 276. Cost Group 440 refers to HVAC systems of the building services trades in construction projects, which fall under the HOAI (Regulation on Fees for Architect and Engineer Services).
Cost Group 440 (System Group 4) is further subdivided into additional cost groups of the 2nd level of DIN 276:
441 High and Medium Voltage Systems
Transformers; Transformer stations; Switchgear technology; Main connection fuse boxes; Distribution cabinets for power supply systems; Power line systems; Risers;
442 Independent Power Supply Systems:
Power generation systems; Fuel supply; central battery and power supply systems; Diesel and gas motor systems; Photovoltaic systems; Wind power systems; Rectifiers; Solar system carriers; etc.
443 Low Voltage Switchgear:
Low voltage main distributors; Reactive power compensation systems; etc.
444 Low Voltage Installation Systems:
Cable systems; Wiring systems; Sub-distributors including associated switching and safety components; Installation systems underfloor and above floor; Installation devices; Switches; Outlets; Installation components in general; etc.
445 Lighting Systems:
Interior lighting systems; Fixed lighting; Emergency lighting systems battery-backed or with central supply; Traffic route lighting systems within buildings; etc.
446 Lightning Protection and Earthing Systems:
Lightning rods; Earthing systems; Equipotential bonding technology; Surge protection in general (internal and external); Lightning protection catching devices; Separation systems; etc.
447 Overhead Line Systems:
Overhead line systems for local and long-distance traffic, e.g. through overhead lines; etc.
449 Other items for Cost Group 440:
Electric drives; Electric heating systems; Illuminated advertising systems (CG 546); Fire protection components; etc.
For the following construction projects / project types, we offer you our comprehensive engineering services / specialist planning services according to HOAI:
– Residential buildings / Housing developments
– Student dormitories / Nursing homes
– Shopping centers
– Logistics centers
– Supermarkets and discount stores
– Warehouses
– Industrial buildings
– Workshops
– as well as other commercial buildings / special buildings.
Planning of additional MEP trades from one source
Independent of the systems of Cost Group 440 (Power Systems), we offer you all trades of building services (Mechanical, Electrical and Plumbing) from one source. Thus, we are available to you as a comprehensive MEP general planner for your upcoming construction projects with high performance and reliability.
Successfully start with us
Our specialists examine the specific requirements before the project begins to avoid hasty wrong decisions. This way, we want to optimize the value creation potential of your project and provide you with a
smooth and controlled process flow during planning and construction execution.
DAMBAN Engineering Office – Your strong partner for your project.
Engineering | Specialist Planning Power Systems / Electrical
High and Medium Voltage Systems
Independent Power Supply Systems
Low Voltage Switchgear
Low Voltage Installation Systems
Lighting Technology
Lightning Protection Systems / Earthing Systems
Photovoltaic Systems
Emergency Power Systems
Emergency Lighting Systems
Switching and Distribution Systems in general
Routing for Electrical Systems
Energy Efficiency