Emergency and service control center
Emergency call and service control centers (NSL) according to DIN VDE V 0827-11 are permanently manned positions in Germany that send alarms, warnings, messages and information, in particular from hazard warning systems, such as
- Burglar alarm systems ,
- Hold-up alarm systems ,
- Emergency and Hazard Response Systems (NGRS),
- Video surveillance systems ,
- Hazard warning systems,
- Fire alarm systems,
- Access control systems ,
- Systems for person surveillance, tracking of lone workers and object tracking systems or
- from similar plants and systems,
Received, verified and processed from monitored objects to be protected and further appropriate measures (e.g. intervention) initiated. Messages and warnings that are transmitted from security-relevant protected objects (e.g. critical infrastructures ) due to the dangers identified there must generally be transmitted to the NSL via alarm receiving points (AES) in accordance with DIN EN 50518 (latest version currently in draft).
The objectives are the collection of security-relevant information related to the protected object as well as the professional information processing with the fastest possible assistance to avert danger . In addition to the AES, the NSL thus represents an essential function within the so-called alarm chain.
NSL services
The services of an NSL according to DIN VDE V 0827-11 are:
- Technical Service (TD);
- Security service alarm service (AD);
- Security service intervention service (ID);
- Additional service to increase the efficiency of security.
Technical service (TD)
The technical service (TD) is usually carried out by an AES and includes in particular the following activities:
- Monitoring, receiving, processing of messages from in protected objects
- Measurement and logging of the availability of the alarm transmission systems in accordance with DIN EN 50136-1 (VDE 0830-5-1) including provision for the NSL;
- Monitoring the forwarding of messages in the security chain;
- Fault detection based on messages / missing messages and organization of fault clearance in the security chain;
- Forwarding of the alarm to the alarm service (AD)
Alarm service (AD)
An alarm service (AD) is a security service that consists of
- To evaluate or verify alarms and messages taking into account current information relevant to the protected object ( alarm verification ),
- to initiate, monitor and monitor planned (security) measures, ie those contractually agreed with the customer in an alarm service and intervention agreement, to restore the security of the protected object as quickly as possible
- to document the results of these activities.
Intervention Service (ID)
The intervention service (ID) is a security service that is immediately available after the alarm, whose activities essentially consist of carrying out agreed measures to avert danger on the protected object and documenting the results of these activities.
Safety chain
To ensure optimal security of the protected object, the alarms and messages must be transmitted immediately and securely to the responsible bodies for the technical service, the alarm service and the intervention service. So that the related activities and procedures (processes) are always mastered, they are linked to one another in the form of process steps to form a security chain.
The security chain consists of the alerting, intervention and reporting processes, including the associated process steps and their monitoring.
The requirements for the services and the security chain are broken down in DIN VDE V 0827-11 in numerous sub-items, such as: B. on the subject areas:
- Responsibilities
- Personnel and technical availability
- Structural, technical, organizational and personnel requirements
- confidentiality
- Monitoring of the process steps in the security chain
- Reporting process
Management of an NSL
In addition, DIN VDE V 0827-11 contains, among other things, requirements and regulations relating to the management of an NSL with sub-items such as B. on the subject areas:
- Alarm and intervention plan
- Disruption, crisis and emergency plan
- Cooperations
Norm vs. Pre-standard
The DIN VDE V 0827 series of standards are referred to as pre-standards as long as they have not yet been adopted as a harmonized European standard (EN). After three years at the latest, it is checked annually whether it can be converted into a harmonized European standard. The standards committee DKE / UK 713.1 "Hazard reporting and monitoring systems" of the DKE German Commission for Electrical, Electronic and Information Technologies in DIN and VDE is responsible for the DIN VDE V 0827 series of standards .
Standards are recommendations, so there is basically no obligation to adhere to them. However, they are so-called recognized rules of technology, i.e. a technical specification that is viewed by a majority of representative experts as a representation of the state of the art. Therefore, they are consulted by appropriate experts in problem cases and disputes.
As part of the European standardization of standards, new national standards in Germany are usually only issued as pre-standards (see CEN / CENELEC internal regulations Part 2, Paragraph 5 and the standstill agreement anchored there), which is why the NSL standards were also issued as pre-standards . In principle, the necessary experience should first be gathered by applying a prestandard.
A prestandard can, however, acquire the status of a recognized rule of technology if there is no other set of rules on this matter and there are no negative experiences in its application or if it is viewed by a majority of representative experts as a representation of the state of the art. In the case of the NSL pre-standards, this is likely due to the diverse application and implementation in specific regulations, such as B. the VdS Schadenverhütung GmbH or the ÜEA guideline , are now the case.
In order to be able to certify qualified NSL, another part of the standard DIN VDE V 0827-12 is currently being drawn up, which is to describe the test procedures.