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NFPA 13, 8.6.4.1.2 and 8.6.5.1.2 confusion

Question asked by eldosrajan on Mar 26, 2018
Latest reply on Mar 26, 2018 by cdafd

Hi Friends,

In NFPA 13, 2007 ,

8.6.4.1.2

(2) Installed with the deflectors at or above the bottom of the structural member to a maximum of 22 in. (559 mm)  below the ceiling/roof deck where the sprinkler is installed in conformance with 8.6.5.1.2.

But

Table 8.6.5.1.2 shows different (please see the attached sketch

 

and give a solution

 

Thanks

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