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Per NFPA 13 (2016 ed.) section "The end sprinkler on a branch line shall be restrained." Per table the restraints shall be spaced per pipe size. Does this apply the branch lines on a gridded system?

Question asked by sharon on Nov 14, 2017
Latest reply on Nov 14, 2017 by cdafd

(i.e. How do these codes get applied to Gridded System?)