Valve stack for high voltages having fire screen means located between valve modules
AssigneeAsea Brown Boveri AG
InventorsMats Johansson, Fredrik Ruter, Urban Astrom
Life of this patent
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Abstract
A valve stack for high voltages includes a number of electrically interconnected valve modules, some of which are disposed one above the other. To prevent a large fire in a valve module from spreading upwards to valve modules positioned above it, fire screens are arranged between valve modules located one above the other.
Claims11
A valve stack for high voltages which comprises first and second electrically interconnected valve modules, said first valve module being located above said second valve module, each of said first and second valve modules having horizontal width and length dimensions, and means forming a fire screen located between said first and second valve modules for preventing the spread of fire from one of said first and second valve modules to the other of said first and second valve modules, said fire screen means having horizontal width and length dimensions at least equal to the horizontal width and length dimensions of said first and second valve modules.
Dependencies are inferred from the claim text.