Before revision: Automatic fire suppression systems Fire protection water spray systems are used to cool a transformer to prevent damage if exposed to radiation heat transfer from a fire involving oil released from another transformer that has failed.FM Global Data Sheet 5-4 Transformers URL Transformer Fast Depressurization Systems (FDS) Passive mechanical systems designed to depressurize the transformer a few milliseconds after the occurrence of an electrical fault.NFPA 850 Those system prevent any fire by avoiding transformer tank rupture and subsequent fire damages.FDS Live Test
After revision: Automatic fire suppression systems Fire protection water spray systems are used to cool a transformer to prevent damage if exposed to radiation heat transfer from a fire involving oil released from another transformer that has failed.FM Global Data Sheet 5-4 Transformers URL Transformer Fast Depressurization Systems (FDS) Passive mechanical systems designed to depressurize the transformer a few milliseconds after the occurrence of an electrical fault.NFPA 850 Those systems minimize the chance that a transformer tank will rupture given a minor fault but are not effective on major internal faults.