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Fire Door in Fire wall for Outdoor Transformer Yard

Question asked by pratik.bandyopadhyay on Sep 6, 2017
Latest reply on Sep 6, 2017 by pratik.bandyopadhyay

We are designing an installation of outdoor Transformer yard having Power Transformer separated by Fire wall as per NFPA design.  To provide a clear passage during fire, there is a requirement of Fire Door in Fire wall (at one corner) between two (2) outdoor transformer  cells. Please inform incase of any specific code violation as there is no reference of fire door in fire wall for Outdoor Type Transformer yard. The Power Transformers are having oil quantity of more than 5000 gallon each.