Share

PROTECTION OF DUCT OPENINGS IN TWO-HOUR FIRE RESISTANT WALLS AND PARTITIONS.

Author(s) : GEWAIN R. G.

Type of article: Article

Summary

FIRE DAMPERS ARE DESIGNED TO PREVENT THE SPREAD OF FLAMES THROUGH WALL OPENINGS. THEY ARE TESTED ON THE BASIS THAT DUCTING ON THE FIRE SIDE HAS COLLAPSED. THE AUTHORS DESCRIBE TESTS THAT INDICATE THE VIABILITY OF DUCTING IN FIRE CONDITIONS. THE DUCTS USED WERE TWO RECTANGULAR, GALVANISED STEEL DUCTS WITH SITE RIVETTED JOINTS, ONE OF WHICH HAD FIRE INSULATED HANGERS AND STIFFENING AT THE WALL OPENINGS, AND ONE STAINLESS STEEL, CIRCULAR DUCT WITH SHOP WELDED JOINTS. ALL MAINTAINED FLAME PROTECTION AT THE WALL OPENINGS DURING A 2 HOUR FURNACE TEST, THE HANGERS AND HANGER BOLTS REMAINING IN REUSABLE CONDITION. D.W.H.

Details

  • Original title: PROTECTION OF DUCT OPENINGS IN TWO-HOUR FIRE RESISTANT WALLS AND PARTITIONS.
  • Record ID : 1991-0785
  • Languages: English
  • Source: ASHRAE Journal - vol. 32 - n. 5
  • Publication date: 1990
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles in this issue (2)
See the source

Indexing