UL 609:2018 pdf download
1.1 These requirements cover construction, performance, and maintenance of local burglar-alarm units and systems for use in mercantile premises, mercantile safes and vaults, and bank safes and vaults. 1.2 As covered by these requirements, a local alarm system consists of protective circuits and devices,connected through control apparatus to an enclosed tamper-protected sounding device mounted on […]
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