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siamese connection[¦sī·ə‚mēz kə′nek·shən]
A Y-shaped standpipe installed close to the ground outside a building to provide two inlet connections for fire hoses to the standpipes and to the sprinkler system.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
A wye connection, installed close to the ground on the exterior side of the wall of a building, providing two inlet connections for fire hoses to the stand-pipes and fire-protection sprinkler system of the building.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.