Power plant- Fire Detection System

 

             Fire Detection System  

Local Fire Detection

Local Processor

Fire Fighting Center (FFC)

Specific Maintenance Equipment

Cables

            Fire Fighting Means     

Fire-Water Pumping Stations

Water Network

Foam System for Fuel Tanks Farm Area

Foam Systems for Machine Room Equipment

Foam Hydrants

Specific Protection of the Crude-Oil Floating Roofs Seal

Water Deluge System

Indoor Fire Protection of Buildings

Fire Equipment Cabinets

Mobile Intervention Means

Automatic Shut-Off of Ventilation, De-Energizing, Tripping

Passive Fire Protection 

    The protection of the plant against fire shall be based on:

 The fire detection system,

  Automatic fire fighting means,

       Manual fire fighting means,

   The passive fire protection

  Basic codes and standards

      In general, NPFA code or approved equivalent shall be followed for the safety systems to be provided in the plant. The following list gives some of the codes, standards, rules, or approved equivalent ones to comply with the safety equipment unless otherwise specified in the Contract.

 Gas Turbine: Automatic CO2 system – NFPA 12

 Gas Turbine Hot Parts: CO2 system (NFPA 12) or foam (NFPA 11(

      gas Turbine Electrical/Control cubicles and cellar(s)

:    automatic FM200 (NFPA 2001) or CO2 (NFPA 12) as approved by the Company/Engineer

       All control rooms along with cellars

:           Automatic FM 200 system (NFPA 2001)

        Computer rooms: Automatic FM200 system  (NFPA 2001)

      All Electrical rooms i.e. Switchgear rooms, MCC, etc.

:           Automatic FM200 system (NFPA 2001)

      Steam Turbine and auxiliaries: Automatic foam sprinkler system (NFPA 16)

     Heat Recovery Boilers, Air condensers, and associated equipment:  

         Hydrants (NFPA 24 and NFPA 291)

      Cellars of above electrical rooms

:           Automatic FM 200 system (NFPA 2001)

    All Transformers: Automatic Deluge system (NFPA 15)

      Fuel skids: Automatic foam sprinkler system (NFPA 16)

    Cable galleries and cable trays: Automatic water spray fixed system (NFPA 15)

     Fuel Gas Treatment Regulation and Filtering Station: Hydrants (NFPA 24 and NFPA 291(

   Inside Turbine halls      

: Water/foam standpipes (NFPA 14)

 Outdoor Plant Areas: Water/foam hydrants (NFPA 24)

       Aside from the above list SSD (Safety and Security Directives) and NFPA 850 shall also be followed   .                                                  

 

      The complete fire fighting system shall be monitored through computers/reporting terminals and mimic panel in the control room of Fire Control Centre, and the information related to plant fire status shall be displayed on a terminal in the Main Control Room, through Plant Control System DCS.

      The system located in the areas containing fuel piping or equipment shall be designed with due consideration to the exposure to the hazard as per code.

        The Contractor shall supply detailed drawings identifying the degree and extent of hazardous areas associated with fuel handling facilities in accordance with the above codes.

        All indications, instructions, and panel labeling related to safety shall be written in both Arabic and English languages.

      All the equipment supplied for fire detection and the fire-fighting system shall be UL listed or approved by Factory Mutual (FM) or any other reputable international agency, subject to Company/Engineer’s approval.

      The HVAC system shall be interlocked to trip upon fire detection in the respective areas. Detection of fire on gas turbine or its fuel skid shall trip the unit and the same shall be reported to the Fire Control Centre and Main Control Room through Plant Control System DCS.