nfpa 20 scholars

[cdafd]

For all you old folk

was it ever written that ug fire sprinler pipe cannot extend more than five feet into the building??

if so what edition????


10.6 Protection Against Damage.
10.6.1 Pipe shall not be run under buildings.
10.6.2 Where pipe must be run under buildings, special precautions shall be taken, including the following:
(1) Arching the foundation walls over the pipe
(2) Running pipe in covered trenches
(3) Providing valves to isolate sections of pipe under buildings

 

[cdafd]

SORRY make that nfpa 24

getting old

 

[rconner]

I don't know about specifically "five feet", but I think the 2007 versions of both NFPA 13 (for sprinkler piping etc.) and 24 (for private fire mains etc.) include the clause immediately after those you've quoted above to the effect, "10.6.4 Where adjacent structures or physical conditions make it impractical to locate risers immediately inside an exterior wall, such risers shall be permitted to be located as close as practical to exterior walls to minimize underground piping under the building."