NFPA 120-2020 Standard for Fire Prevention and Control in Coal Mines

NFPA 120-2020 Standard for Fire Prevention and Control in Coal Mines. 5.3.5.3.2 ‘Ihe sssteiii shall send an audible and visual alarm to the opet’ators cab. 5.3.5.3.3 A manual actuator shall be located just outside the lube oil room. 5.3.5.3.4 LLLbe oil rooms shall have automatic door closers or shall have the door interlocked to shtit upon actuation of the fire suppression system, 5.3.5.4 Transformers. 5.3.5.4.1 Oil-filled transformers located in the tail section, enclosed rooms, or other inaccessible locations shall be proided with an auwinatic lire suppression ss(em. 5.3.5.4.1.1 The system shall transmit an audible and visual alarm to the °i’ cab. 5.3.5.4.1.2 A •iiaiiual artuator shall be located jiLsi otiisicle ilw transformer area. 5.3.5.4.2 Transformers located in areas other than those listed in 5.3.5.4.1 shall he protected with a Class flC, iiiiiimiLiiii 45.4 kg (lOt) lhi, fire extinguisher. 5.3.5.4.3 Oil anabsis. including dissolved gas, shall be conducte(l on co7nbu%Iible oil—1illcl tralLsfolntrrs l);Lse(l Hj)Ofl itianti— factiirer’s recommendations or ANSI,/NFTA MTh, Staudiird br jIamfruuiue Thting SpiJiraIion.s Jo, Ekrirfral Power tkstnbuticin tqui/nnnst and Ss1ems. whichever is niore striligeliL 5.3.5.4.4 Thermographic scanning shall he performed on tianst inmers at least ann taall. 5.3.5.5 Electrical Room or CabineL 5.3.5.5.1 Enclosed electrical rooms shall he protected with a total Ilooding gaseous extinguishing agent ut equivalent li.’e suppressiolt s’45teJIl. 5.3.5.5.1.1 The system shall be installed in accordance with NFPA 201)1 or othei’ applicable NFPA standards, 5.3.5.5.1.2 The system shall he actuated b a smoke, ultravi let/infrared (UV/lR), or heat detector system and send an audible and visual alarm to the operator’s cab. 5.3.5.5.1.3 Thr ventilatiomi system shall be interlocked to the gaseous extinguishing system to shut down upon first detecLion 5.3.5.5.1.4 The room shall be sealed to maintain the design gaseous extinguishing concentration. 5.3.5.5.1.5 Pre1iscliarge alarms shall be provided in rooms provided with automatic suppression s’,stems.NFPA 120 pdf download.