Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The relationship between liquid flammability tests and transformer fire situations
Transformer installations where fire hazard is a concern have been a subject of much debate for over a decade. Before then, polychlorinated biphenyl (PCB) askarels were specified where concern about fire hazards of mineral oil insulated transformers justified the added expense of a PCB transformer. For four decades, safety guidelines for PCB transformers were simple. The National Electrical Code (NEC) required only that the askarel liquid be 'listed' as non-flammable and that provisions be made for venting any arc-generated gases. One criticism in the past of attempting to limit the probability of the rupture/explosion fire scenario is that there were not enough types of current-limiting fuses to cover the range of applications needed. Since new types of electronic current-limiting fuses have been developed to cover more applications, we will see wider use of explosion prevention methodology in the future, rather than focusing on simple fluid tests and assuming that a fire must take place.
The relationship between liquid flammability tests and transformer fire situations
Transformer installations where fire hazard is a concern have been a subject of much debate for over a decade. Before then, polychlorinated biphenyl (PCB) askarels were specified where concern about fire hazards of mineral oil insulated transformers justified the added expense of a PCB transformer. For four decades, safety guidelines for PCB transformers were simple. The National Electrical Code (NEC) required only that the askarel liquid be 'listed' as non-flammable and that provisions be made for venting any arc-generated gases. One criticism in the past of attempting to limit the probability of the rupture/explosion fire scenario is that there were not enough types of current-limiting fuses to cover the range of applications needed. Since new types of electronic current-limiting fuses have been developed to cover more applications, we will see wider use of explosion prevention methodology in the future, rather than focusing on simple fluid tests and assuming that a fire must take place.
The relationship between liquid flammability tests and transformer fire situations
Der Zusammenhang zwischen Kuehlfluessigkeit-Entzuendbarkeitspruefungen und Brandsituationen an Transformatoren
Sundin, D.W. (Autor:in) / Northrup, S.D. (Autor:in)
1987
5 Seiten
Aufsatz (Konferenz)
Englisch
TRANSFORMATOR , TRANSFORMATOROEL , NORM , REGEL , RICHTLINIE , FLAMMPUNKT , BRENNBARKEIT (VERBRENNBARKEIT) , THERMISCHE EIGENSCHAFT , FEUERMELDETECHNIK , BRANDSCHUTZ , AUSLAENDISCHE NORM , USA (UNITED STATES OF AMERICA) , ELEKTRISCHE ISOLATION , FLUESSIGER ISOLIERSTOFF , UMWELTBELASTUNG , UMWELTSCHUTZ
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