A sprinkler system has been installed with 100 sprinklers.

According to NFPA 13, a supply of at least six spare sprinklers shall be maintained on the premises for facilities having under 300 sprinklers. Since the sprinkler system has been installed with 100sprinklers, the minimum number of spare sprinklers to be provided is six.

References: NFPA 13, 2019 edition, section 16.2.7.5(1)1; NFPA 13 Handbook, 2019 edition, section 16.2.7.5(1)2

1: https://www.nfpa.org/codes-and-standards/all-codes-and-standards/list-of-codes-and-standards/detail?code=13 2: https://www.nfpa.org/product/nfpa-13-handbook/p0013hb