Could someone explain this point in NFPA 15 please:
184.108.40.206.5 Pilot sprinklers shall be permitted to be spaced more than 22 in. (559 mm) below a ceiling or deck where the maximum spacing between pilot sprinklers is 10 ft (3 m) or less.
Will have to look at the book
Maybe do to building design or similar, The pilot line needs to be lower,
So max allowed is 22 inches, But the spacing between pilot sprinklers has to be ten feet or less, not the normal spacing allowed per NFPA 13
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