Nfpa 20 fire protection

Nfpa 20 fire protection

Tia20 10 1581 Interconnect control wiring of pumps in series which are not located in the same room and which affects starting of the described in NFPA 70 Article 695A581 The following methodsshould be considered acceptable1 Be encased in a minimum 50 mm 2 in of concrete2 Be protected by a firerated assembly listed to achieve a minimum minimum 2hour fire rating 4 Be protected by a listed firerated assembly that has a minimum fire rating of 2 hours and contains only emergency Source: Nfpa 20 fire protection
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