Any electrical engineering infrastructure is only as good as its protection against lightning and overvoltage. Any disruption or failure of the infrastructure may have far-reaching consequences that can threaten the existence of a company.
Current damage statistics from electronics insurers show that lightning/overvoltage incidents are worrying causes of malfunctions. More than a quarter of all cases of damage are caused by overvoltage incidents due to electromagnetic influences.
In a highly technical electromagnetic environment, it is therefore now more necessary than ever before to plan and implement measures to counteract the mutual influence of electrical and electronic devices and systems in advance.
This is the only way to minimise the risk of disruption or destruction.

As a special service, we create the necessary fire protection regulations for the operator of the building and also plan the technical equipment for early fire detection, i.e. preventive fire protection.

Fire protection regulations according to DIN 14096 contain rules for behaviour in the event of a fire, as well as necessary measures for fire prevention.

There are no uniform requirements for the preparation of fire protection regulations for every building across the country. The requirements of fire protection regulations are usually derived from the conditions of the building permit or the responsible fire prevention authorities.

The fire protection regulations according to DIN 14096 include

• Part A Rules of conduct for persons in case of fire
• Part B Rules of conduct to prevent the spread of fire / smoke
• Part C Rules of conduct for persons with fire protection duties

Comfort considerations, safety aspects and increased competitive pressure are causing the rapid growth of flexible installations, such as bus technology. As a result, the installation workload increases and is justified by an automation effect in operation.

A conventional electrical installation, in conjunction with the additional control cables for measurement, control and regulation technology of the supply and disposal facilities in buildings, leads to true chaos in terms of the number of cables. This is difficult to manage in the event of disruptions and changes in use and leads to high subsequent costs.

All technical installations in buildings must be supplied with electrical energy. However, if the measurement, control and regulation technology is "networked", all devices and systems can exchange information with each other. This allows supply networks to be combined and thus reduced.

Common bus systems:

KNX Konnex
EIB European Installation Bus
LON Local Operating Network
Luxmate bus system by Zumtobel

Our working life and our value creation are no longer imaginable without technical and communication devices. An uninterruptible power supply is therefore of utmost importance for every building. A short-term failure of production equipment and computer systems can cause damages amounting to millions nowadays and can be avoided almost without exception by good planning.

The basic prerequisite for a reliable electrical infrastructure supply is, first of all, a detailed analysis and determination of requirements. Only by diagnosing the exact performance data and planning the necessary cable cross-sections and the protection for these can a high degree of supply reliability be guaranteed as a primary objective.

In general, the power is supplied from the low-voltage network of an energy supply company. However, the above-mentioned reliability may make it necessary to obtain a supply from the medium-voltage network as and when necessary.

Furthermore, there is the technical possibility of ensuring a network-independent, uninterrupted power supply by means of uninterruptible power supply systems or emergency power systems.

Where would the world be without mobile communication and data exchange via mobile phones, smartphones etc.? We can no longer imagine our lives and the working world without our devices that we use everyday. Nevertheless, there are often architectural limits to mobile availability. Modern buildings with reinforced concrete, steel and glass facades often form Faraday cages, which prevent or severely impair radiocommunication. If you wish to optimise the use of a building, transmitting and receiving units for GSM / UMTS networks can help you to solve the problem.

The importance of communication and data technology in companies is increasing all the time. Efficient use of data and communication media is a prerequisite for fast and productive work in everyday business life.
The multifunctional use of your networks is therefore of key importance and is guaranteed by "structured cabling".
This means that the terminal boxes are wired in a star configuration from the data distribution cabinet. The use of a uniform cable type for the telephone and IT applications results in a high level of flexibility in terms of use. Each connection can be used for computers, telephones and fax.

For us humans, light is a key component of our lives. Artificial light plays a decisive role in the presentation and use of buildings. HF-GmbH provides advice, plans and visualises your building projects and ensures that each building gets the right lighting for its use and purpose. We take into account the design aspects relating to staging and accentuation, as well as making a contribution to sustainability aspects, e.g. optimised energy consumption by choosing the right light source. As a sub-discipline of electrical planning, lighting design is more than just the basic illumination of a building structure: At our company, it forms the intersection between a deep, holistically rooted understanding of architecture and our expertise in electrotechnical engineering as an art form. On this basis, HF-GmbH has its own department for all planning activities in the field of lighting.

Media technology includes all kinds of presentation techniques, both in the auditory and visual field.
We create simple solutions for you in the private sector, as well as professional solutions for auditoriums, meeting rooms, video conference centres and similar facilities. Thanks to the individual overall planning which is tailored to your needs, even complex, interlinked solutions are no problem for us.

With increasing energy demand, obtaining the supply from the basic 400 V low-voltage network of the local energy supplier is no longer possible. In these cases, you need to obtain the supply from the medium-voltage network (10 or 20 kV network). This results in the installation of a transformer station, which is generally owned by the customer.

In a society which faces increased security threats, in which the state seems to be overburdened with the various security needs, it is becoming more and more important to provide the security that you need yourself. The planning of one's own security is initially based on evaluating the hazard situation in each individual case and distinguishes between the following sub-disciplines:

• Intrusion detection systems
• Fire alarm systems
• Smoke and heat extraction systems
• Video systems
• Data protection/security systems
• Access control systems
• Door control systems
• Dialling and transmission systems etc.

Proprietary solutions for building services engineering, lighting control, media technology, data and communication networks are a thing of the past. These technology types are increasingly being combined on a shared basis and communicate with each other and with the outside world, thus increasing our level of comfort. Due to the large number of different technologies that need to be combined, a leading position in system integration is key.

The change from analogue telephony to a digital world of communication requires very complex and extremely powerful systems, as well as server-based communication systems. Communication/data technology (IT technology) and telecommunications systems are planned in a networked manner and increasingly are being based on one single unit. The range of services extends far beyond the original task of purely auditory communication.