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Schoonbaert volledig - ie-net

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Keuze voor kwadratische groeicurve<br />

• Experimentele gegevens (1972 : FM, NIST, FRS)<br />

• Eerst 3 curves c r es : Slow, Slo Medium Medi m en Fast<br />

• Daarna nog een curve Ultra-fast<br />

• Tijdsconstante tg (sec) : tot 1.000 btu/sec<br />

600sec (S) ( ) – 300sec (M) ( ) – 150sec (F) ( ) – 75sec (UF) ( )<br />

kvivFSE sp2tsq5<br />

kvivFSE sp2tsq6<br />

Q = 1.000 (t/tg)² (btu/sec)<br />

NFPA 92B (appendix C)<br />

3

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