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This VGB-Standard presents methods of using operational and adapted technical measures to keep the risks of fire and explosion as low as possible. In this way, potential hazards can be avoided by the deployment of suitable operational workflows. Fires can be detected without delay and combatted effectively under the special conditions of the type of plant concerned. The formation of potentially explosive atmospheres can be limited by operational and technical measures.

This VGB-Standard deals with flue gas desulphurisation (FGD) in large combustion plants. At this point, no additive processes, which can be employed in combustion, are considered. Here, only plants downstream of combustion are considered. The aim of the instruction sheet is to describe procedures and special designs so that every reader finds his type of plant described. Operating experience is what is most important. If special plant-specific problems occur, the corresponding plant type is pointed out. First experience is also important since the cooperation of experienced operating personnel is necessary for planning new plants. There is otherwise a risk that operating experience with existing plants is not considered.

With this VGB-Standard options are demonstrated to reduce fire hazards by constructional means and to respond to them by appropriate procedures, to detect a fire that has already started as soon as possible, and to fight the fire effectively taking into account the specific properties of this fuel.

The present VGB Standard S-175 explains fundamental concepts and compiles the threats and the security requirements derived from them in a structured and clear manner. In addition, recommendations for actions regarding the individual requirements have been compiled by way of example for improved understanding and  quick implementation. It is envisaged to provide in a library both additional aids for practical application and advice in response to current events.

This VGB-Standard presents methods of using operational and adapted technical measures to keep the risks of fire and explosion as low as possible. In this way, potential hazards can be avoided by the deployment of suitable operational workflows. Fires can be detected without delay and combatted effectively under the special conditions of the type of plant concerned. The formation of potentially explosive atmospheres can be limited by operational and technical measures.

The present VGB Standard S-175 explains fundamental concepts and compiles the threats and the security requirements derived from them in a structured and clear manner. In addition, recommendations for actions regarding the individual requirements have been compiled by way of example for improved understanding and  quick implementation. It is envisaged to provide in a library both additional aids for practical application and advice in response to current events.

With this VGB-Standard options are demonstrated to reduce fire hazards by constructional means and to respond to them by appropriate procedures, to detect a fire that has already started as soon as possible, and to fight the fire effectively taking into account the specific properties of this fuel.

This VGB-Standard deals with flue gas desulphurisation (FGD) in large combustion plants. At this point, no additive processes, which can be employed in combustion, are considered. Here, only plants downstream of combustion are considered. The aim of the instruction sheet is to describe procedures and special designs so that every reader finds his type of plant described. Operating experience is what is most important. If special plant-specific problems occur, the corresponding plant type is pointed out. First experience is also important since the cooperation of experienced operating personnel is necessary for planning new plants. There is otherwise a risk that operating experience with existing plants is not considered.

Vorwort des Herausgebers

VGB PowerTech hat eine zentrale Zuverlässigkeits- und Ereignisdatenbank (ZEDB) eingerichtet, in der die Betriebserfahrungen der deutschen Kernkraftwerke, der niederländischen Anlage Borssele und des Kernkraftwerks Gösgen (Schweiz) gesammelt werden, um daraus anlagenspezifische Zuverlässigkeitsdaten für probabilistische Sicherheitsanalysen (PSA) zu ermitteln.

Publisher's Preface

VGB PowerTech has set up a centralized Reliability and Event Data Base (ZEDB) which contains a compilation of the operating experiences of all German nuclear power plants, the Dutch unit Borssele and the Swiss unit Goesgen, generated to allow plant-specific reliability data to be determined for probabilistic safety analyses (PSA).

This publication will be delivered as an ebook (PDF-file).