Transcript

30421007-3CL-00018

-

TCE CONSULTING ENGINEERS LIMITED

CONTENTS

FIRE DETECTION AND ALARM SYSTEM

SHEET OF
i i
OF 4

SAUDI ELECTRICITY COMPANY
EASTERN OPERATING AREA
Dammam, Saudi Arabia
GENERATION EXPANSION OF ARAR POWER PLANT
(CONTRACT NO :30421007/00)
DESIGN BASIS
FOR
FIRE DETECTION AND ALARM SYSTEM
DOCUMENT NO. : 30421007-3CL-00018-P0C
JUNE 2005

ENGINEERING CONSULTANT
TCE CONSULTING ENGINEERS LIMITED
73/1, ST. MARK’S ROAD
BANGALORE 560 001
INDIA
CONTRACTOR:
AL-TOUKHI COMPANY FOR INDUSTRY & TRADING
P.O. BOX 497, RIYADH 11411, KINGDOM OF SAUDI ARABIA
TEL. 00966-1-4633660 : FAX. 00966–1-4631150

P0C
02-06-2005

MP

SR

P0B
18-03-2005

UHM

SR

P0A
23-11-2004

MP

SR

REV NO . DATE

PREPARED BY

CHECKED BY

FILE NAME: F120R1

CLEARED BY

APPROVED BY
FORM NO. 120 R1

1. 120 R1 .0 AREAS TO BE PROTECTED 4 5.0 DESCRIPTION OF SYSTEM 6 ISSUE P0C FILE NAME: F120R1 FORM NO. DESCRIPTION PAGE No.0 INTRODUCTION 1 2.0 TYPES OF FIRE DETECTION/PROTECTION 4 6.0 MAIN FIRE ALARM PANEL & LOCAL FIRE ALARM PANEL 6 7.0 OBJECT 2 3.30421007-3CL-00018- TCE CONSULTING ENGINEERS LIMITED CONTENTS FIRE DETECTION AND ALARM SYSTEM SHEET OF i i OF 4 CONTENTS CLAUSE No.0 REFERENCES 3 4.

1.1 Al-Toukhi company for Industry & Trading has been awarded turnkey contract for Open Cycle Gas Turbine based CPS expansion project at Arar of Saudi Electric Company-Eastern Operation Area (SEC-EOA). 1OF 10 ISSUE P0C FILE NAME: F120R1 FORM NO.30421007-3CL-00018- TCE CONSULTING ENGINEERS LIMITED WRITEUP FIRE DETECTION AND ALARM SYSTEM SHEET OF 4 1. procurement.0 INTRODUCTION: 1. installation.16MW @ 50C. engineering. testing and commissioning of two (2) Nos. PG7121 (EA) model Gas Turbine Generator unit of GE make along with associated Generator Transformer and other balance of plant electro-mechanical equipment. 120 R1 . 60.2 The project consists of design. Saudi Arabia.

30421007-3CL-00018- 2.1 TCE CONSULTING ENGINEERS LIMITED WRITEUP FIRE DETECTION AND ALARM SYSTEM SHEET OF 4 2OF 10 OBJECT: The scope of this document is to describe the fire detection and Alarm system proposed to be provided for different buildings and associated auxiliaries/facilities for the extension area completely. ISSUE P0C FILE NAME: F120R1 FORM NO.0 2. 120 R1 .

7 01-SMSS-01.General Material Standard. Rev-4 .0 REFERENCES: 3.SES-B-001 3. ISSUE P0C FILE NAME: F120R1 FORM NO. 120 R1 . 3.21: Fire and Loss Prevention requirements. 3.6 SEC-EOA’s approved list for Fire Detection and Protection Equipment & Devices (Brands and manufacturers).2 SEC-ERB Engineering Standard for Fire Detection and Alarm 3OF 10 System No.30421007-3CL-00018- TCE CONSULTING ENGINEERS LIMITED WRITEUP FIRE DETECTION AND ALARM SYSTEM SHEET OF 4 3.1 SEC-EOA’s specification PTS-1022 3.3 SES-P-119. 3.4 90-SMSS-1: Specification for Fire Protective Signaling Panel.5 NFPA-72: National Fire Alarm Code. 3.

30421007-3CL-00018- TCE CONSULTING ENGINEERS LIMITED WRITEUP FIRE DETECTION AND ALARM SYSTEM SHEET OF 4 4. . packages & containers: G. Switchgear rooms .1 The following type of detectors as listed below in Table-1 would be provided. Optical and Ionization type smoke detectors and Battery rooms Fuel oil tank Manual Fire Alarm Stations (MFAS). .Manual Fire Alarm Stations (MFAS). f) Transformer Yards g) Corridors and Staircases 5. standard fire system will be provided. UV Flame Detectors and Heat detectors will be Fuel Oil Unloading / Provided.E.0 AREAS TO BE PROTECTED 4.E.For G. 120 R1 .1 The following areas of Arar power Plant would be protected by 4OF 10 providing fire detectors. Table-1: Detectors for various areas in the plant Area GTG area Type of Detector .For GTG hall ceiling: Heat detectors. a) GTG Area b) Switchgear Rooms c) Battery Room d) Fuel Oil Tank e) Fuel Oil Unloading/Forwarding areas. Combination of Flame and Heat Detectors.Fuel oil unloading / Forwarding Shed : As FILE NAME: F120R1 ISSUE P0C FORM NO.0 TYPE OF FIRE DETECTION / PROTECTION 5.

Manual Fire Alarm Stations (MFAS) Corridors and Stair Optical & Ionization smoke detector.i of SES-B-001) Basement. - Attendant Room: Ionization & Photoelectric smoke detectors will be Transformer Yard provided.6 of SES-B-001. 6. 120 R1 . Combination of optical & Ionisation type smoke Cable trenches Offices (if applicable) detectors. Room HVAC Ducts Cable Ionisation type smoke detectors (as per Cl. Combination of optical & Ionisation type smoke detectors.3. Heat and Flame Detectors will be provided. Manual Fire cases (if applicable) Alarm Stations (MFAS) Unit Switchgear Optical & Ionization type smoke detectors.No.0 MAIN FIRE ALARM PANEL & LOCAL FIRE ALARM PANEL AND REPEATER PANEL: ISSUE P0C FILE NAME: F120R1 FORM NO.30421007-3CL-00018- TCE CONSULTING ENGINEERS LIMITED WRITEUP FIRE DETECTION AND ALARM SYSTEM SHEET OF 4 Area forwarding areas 5OF 10 Type of Detector per clause 4.2. Explosion proof type heat detectors.2.

3) shall be connected to main Fire Alarm panel.21 of PTS-1022. GTG hall. 7.1 Control functions for the fire Alarm system shall be performed by Fire Alarm panels (main & local).0 DESCRIPTION OF SYSTEM. FILE NAME: F120R1 ISSUE P0C FORM NO.3 As per clause 6. The status of the detection system from all areas of the plant wherever the detectors are located will be available in the corresponding main alarm panel and local fire alarm panels. fuel oil area and in transformer areas with addressable type detectors/Manual Fire Alarm Stations / hooters located in different parts of the plant.2 Local fire alarm panels would be provided in Main switchgear building.1).2 Fire detection and alarm system provided for plant will be of addressable type. 6. 7.3 7. a Fire Alarm repeater panel shall be provided at plant control room. The local control panels will be connected to the main Fire Alarm panel (mentioned in clause 6.1 TCE CONSULTING ENGINEERS LIMITED WRITEUP FIRE DETECTION AND ALARM SYSTEM SHEET OF 4 6OF 10 The Fire Detection and Alarm System proposed for the Power Plant would consist of Main Fire Alarm Panel located in existing Control room.4 The manual fire alarm stations provided in various areas shall initiate audio / visual alarms in the main fire alarm panel and respective local panels and bells / hooters in the protected area. Repeater panel (mentioned below in clause 6. 7. 7. 120 R1 .3 Detectors provided in various areas in the plant would initiate alarms and release of water / Foam / CO2 as per Fire fighting scheme.30421007-3CL-00018- 6. 6. The repeater panel shall be as per 90SMSS-1 Rev.

including activation of hooter. 120 R1 .30421007-3CL-00018- 7. (f) Programmed activation of various interlocks with fire protection system and other associated systems. (h) Real time clock to enable events to be referenced against time and date. siren. individual detector performance / operation and disconnection/ removal of detectors (c) Discrimination between a real fire alarm and false alarm. ISSUE P0C FILE NAME: F120R1 FORM NO.5 TCE CONSULTING ENGINEERS LIMITED WRITEUP FIRE DETECTION AND ALARM SYSTEM SHEET OF 4 7OF 10 The fire alarm panels will be addressable types with the following features: (a) Individual detector addressability. (b) Continuous supervision of detector connecting lines. (i) The Main fire alarm panel also gets status/alarm signals from Foam / fire water spray / CO2 system from the respective local panels. (e) Automatic re-calibration of sensitivity levels of over / under sensitive detectors. (g) Programmed activation of sequence of events to be carried out in case of fire in any particular protective area. etc. (d) Pre alarm in case any detector requires maintenance.

7.13.10 Main Fire Alarm system panel would be provided with Data Printer. 120 R1 .6.3.11 Equipment warning signs will comply as per SES-P-119.a) The fire alarm & detection system if used with the protection system shall be provided with pre. display/indication.30421007-3CL-00018- 7.5 of 90-SMSS-1 Rev.6 TCE CONSULTING ENGINEERS LIMITED WRITEUP FIRE DETECTION AND ALARM SYSTEM SHEET OF 4 8OF 10 The dimension. 7.14 Fire detection and alarm system will be as per Cl. Switches shall be provided on the front of the panel for acknowledging fire alarms. shall have items as indicated in clause 4.12.7.9 Fire Alarm system Panel would be provided with a automatic telephone call transmitter 7.21. alarm.discharge alarm as per PTS & NFPA standards.21 of PTS-1022 7. 7. colour. with indications only. 7. Each detector will be provided with indicating lamps glowing steadily to indicate that it has operated which will otherwise flash intermittently to indicate the healthy condition of the detector and sensing circuits. protection class of the fire alarm system panel would be as per the manufacturer’s standard. supervisories.No.7 Visual & audible alarm indication will be provided in the fire alarm panel. security conditions and system troubles. 7.8 Necessary control and interlocking functions such as switching off of HVAC system wherever applicable will be provided.15 Fire Detectors ISSUE P0C FILE NAME: F120R1 FORM NO. 7. 7. 7. Fire Alarm repeater panel.

The manual pull station shall be provided with a separate transparent.2. The zones of individual detectors will overlap and no blind zone will be left. ISSUE P0C FILE NAME: F120R1 FORM NO. will be located in strategic areas.15.3 Manual Fire Alarm Stations (MFAS). 7.6The quantity of fire detectors and call points to be installed in each of the areas will be based on NFPA stipulations.30421007-3CL-00018- TCE CONSULTING ENGINEERS LIMITED WRITEUP FIRE DETECTION AND ALARM SYSTEM SHEET OF 4 9OF 10 7. 120 R1 .1 The spacing of detectors will be in accordance with NFPA-72. 7. response indicator of each detector and test switch will be mounted on a separate box which will be suitable for mounting on the wall. shall be as per the guidelines of NFPA. will be worked out by the Vendor based on the final drawings of various buildings during detailed engineering. 7. If the detectors are mounted above the false ceiling. in the exit routes and in particular on floor landings of stair cases and near exits from the building / area such that the travel distance to the nearest MFAS would not exceed 30 meters. 7. 7.5 When detectors are located below false floors. taking into consideration the obstruction due to floor beams etc. Also. manual fire alarm stations. above false ceilings or in other inaccessible / invisible positions. so as to obtain complete coverage. additional protection cover shall be provided for the manual pull station. as per SES-B-001. the response indicators will be hooked up to the fire alarm panel to identify the detector actuated.2 For detectors mounted below false flooring.15.1 of SES-B-001. unbreakable.5 The standard of all the fire detection appliances like detectors. However.15. lift to open front cover as per clause 3. hooters.15. the actual quantity of detectors required.15.15. response indicators with test switch will be mounted directly below the detector (on the false roof). etc. flashing lights. beacons.

7. 60Hz power supply will be provided for the Fire Detection and Alarm system panel.30421007-3CL-00018- TCE CONSULTING ENGINEERS LIMITED WRITEUP FIRE DETECTION AND ALARM SYSTEM SHEET OF 4 OF 10 10 7.16 Power Supply 7. 120 R1 . battery charger. fuel tanks.2 Fire Detection and Alarm system panel will be provided with a backup power supply unit along with single sealed maintenance free lead acid battery.15.5/2.1 1. with a battery back up time of 72 hours in the event of normal AC power failure.17 Wiring 7. 7. fuel unloading & forwarding areas and transformer yard fire detectors shall be all explosion proof as per SEC standards SES-B-001section 4. The rigid steel conduits would be painted red when exposed.5 Sq. When embedded.8Abort switch shall be provided and installed at all areas where gasextinguishing system shall be applied.16.mm. PVC insulated copper conductors in rigid steel conduits would be used for wiring.16.0. PVC conduits would be used. 7.17.1 Normal 220V AC or 127V AC.15. 7. Further necessary distribution of power supply and conversion of voltage as required for the Fire system panel will be carried out by the vendor. the battery room fire detectors shall be explosion proof suitable for hazardous classified areas. Further.7Transformers. ISSUE P0C FILE NAME: F120R1 FORM NO.