Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Flammability testing of new vinyl compounds with low flammability and low smoke release in cables
A set of new vinyl compounds was prepared anticipating the publication of new requirements for limited smoke (.../LS) cables, to provide formulation guidelines. Commercial cables were used as controls and bulletinized compounds were made into TW and THHN tray cables. A new facility built by BFGoodrich to determine full scale fire performance of cables in vertical tray tests (on CSA, FT-4) and the cone RHR test apparatus were used on 16 cables. The CSA FT-4 test was used also for measuring continuously heat release, smoke release and mass loss. Some cables had previously been tested at UL. Results in the two facilities showed excellent agreement for clear passes and clear failures. However, a cable rated borderline pass at UL failed in the BFGoodrich facility. Dta from the cone correlated so well with cable tray results that the latter could be predicted from the former with reasonable accuracy. The final conclusion was that cables made with bulletinized vinyl compounds or with the other materials tested emitted higher levels of heat and smoke than cables made with the new experimental compounds.
Flammability testing of new vinyl compounds with low flammability and low smoke release in cables
A set of new vinyl compounds was prepared anticipating the publication of new requirements for limited smoke (.../LS) cables, to provide formulation guidelines. Commercial cables were used as controls and bulletinized compounds were made into TW and THHN tray cables. A new facility built by BFGoodrich to determine full scale fire performance of cables in vertical tray tests (on CSA, FT-4) and the cone RHR test apparatus were used on 16 cables. The CSA FT-4 test was used also for measuring continuously heat release, smoke release and mass loss. Some cables had previously been tested at UL. Results in the two facilities showed excellent agreement for clear passes and clear failures. However, a cable rated borderline pass at UL failed in the BFGoodrich facility. Dta from the cone correlated so well with cable tray results that the latter could be predicted from the former with reasonable accuracy. The final conclusion was that cables made with bulletinized vinyl compounds or with the other materials tested emitted higher levels of heat and smoke than cables made with the new experimental compounds.
Flammability testing of new vinyl compounds with low flammability and low smoke release in cables
Entzündungstest an neuen Vinylverbindungen mit niedrigem Entflammbarkeitsniveau und geringer Rauchentwicklung mit Kabeln
Coaker, A.W. (Autor:in) / Hirschler, M.M. (Autor:in) / Shakir, S. (Autor:in) / Shoemaker, C.L. (Autor:in)
1990
11 Seiten, 10 Bilder, 7 Tabellen, 27 Quellen
Aufsatz (Konferenz)
Englisch
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