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Cable Fire Behavior and Testing in the Built Environment

Cable Fire Behavior and Testing in the Built Environment

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Cable Fire Behavior and Testing in the Built Environment

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  1. Cable Fire Behavior and Testing in the Built Environment J. Thomas Chapin, Ph.D. – Lucent Technologies, Bell Laboratories

  2. Requirements • National codes • Local codes • Standards Building Owners & Managers Business Continuity • AHJs • (Code Enforcers) • Fire chief • Fire marshal • Code officials • Construction Industry • Architects • Contractors • Engineers • Insurance Companies • Property Loss prevention Manufacturers of Fire Safety & Security Equipment Conformity Assessment Consumers Life Safety • Communication Systems • Building Products and Furnishings • Resistance • Suppression • Research • Detectors & Alarms Fire Services The Built Environment

  3. Rationale for Cable Investigation • Increased installation of data cable andstructured wiring in buildings (20 billion feet of cable was installed in buildings in the US in 2003). • Cable often not protected by metal conduit. • Abandoned cable accumulating in buildings. • Changing construction practices for buildings. • Harmonization of world fire standards. • Recent fire disasters in buildings.

  4. Copper Telecommunications Cable

  5. Fiber Optic Local Area Network Cable

  6. Structured Wiring Concept Indoor cable covered by NFPA 70, National Electrical Code

  7. ISO TC 92 Routes of Fire in Buildings

  8. Credit Lyonnaise Bank Fire

  9. Thailand Office Fire

  10. Düsseldorf Airport Fire

  11. Heathrow Airport Fire

  12. Steel Beam Deformation after Cable Fire Test

  13. Building Cable Inspections Telecom and energy cable installations

  14. Building Cable Inspections

  15. Building Cable Inspections

  16. US Cable Hierarchy US Requirement(s) NFPA 262 Steiner Tunnel Flame spread, peak and average smoke OD High UL 1666 Vertical Riser Test Flame spread Fire Performance UL 1685 Vertical Tray Test Flame spread, char, total and average smoke VW-1 Bunsen Burner Test Char Low

  17. Horizontal Plenum Cable Fire Test Requirements: Flame spread Peak and average smoke

  18. Vertical Cable Fire Tests Requirements: Flame spread Char Total and average smoke (optional)

  19. Vertical Cable and Wire Tests Requirements: Flame spread Char

  20. Assessment of Cable Infrastructure in Buildings • Fires propagate through buildings by different routes: • Horizontal paths through concealed ceilings and floors • Vertical paths through riser shafts • Open areas within rooms and hallways • Cable fire performance should reflect the installation hazard. • Cable network design can accommodate different fire performance levels (cost and functionality). Key Conclusion – put the right cable in the right place