firee

NTPC SIMHADRI FIRE PROTECTION SYSTEM

FIRE WATER PUMP HOUSE FIRE HYDRANT SYSTEM SPRINKLER SYSTEM FOAM INJECTION SYSTEM INERGEN SYSTEMFIRE DETECTION AND ALARM SYSTEM FIRE PROTECTION SYSTEM FOR SEA WATER 33/11KV TRANSFORMERS CISF – FIRE WING

FIRE PUMP HOUSE

DIFFERENT EQUIPMENTS IN PUMP HOUSE

ELEC MOTOR DRIVEN HYDRANT PUMPS – 3 NOS

DIESEL ENGINE DRIVEN HYDRANT PUMP – 1NO

ELEC. MOTOR DRIVEN SPRAY PUMP- 1 NO

DIESEL ENGINE DRIVEN SPRAY PUMP

JOCKEY PUMPS – 2 NOS

AIR COMPRESSORS – 2 NOS

HYDRO – PNEUMATIC TANK

MOTOR DRIVEN BOOSTER PUMP

DIESEL ENGINE DRIVEN BOOSTER PUMP

NTPC SIMHADRI

FIRE PROTECTION SYSTEM

FIRE WATER STORAGE TANK – 1 (2300m3)

FIRE WATER STORAGE TANK – 2 (2300m3)

D/E D/E

H-M-01H-M-02H-M-03H-D-01WS-D-01WS-M-01

D/E

RING MAIN - 3

RING MAIN - 1

RING MAIN -2

BOOSTER PUMP HOUSE

U # 1 U # 2

SUCTION HDR

DISCH HDR

TO SPRINKLER SYSTEM

JP-M-01 JP-M-02

JOCKEY PUMPS

BP-M-01BP-D-01

AC-01 AC-02

HYDRO PNEUMATIC TANK

FIRE WATER PUMP HOUSE

AIR COMPRESSORS

NTPC SIMHADRI


FIRE HYDRANT PUMPS

MAKE : KIRLOSKAR

NO OF PUMPS : 04 (03 MOTOR DRIVEN, 01 DIESEL DRIVEN)

TOTAL HEAD : 88 MWC

CAPACITY : 410 M3/Hr

MOTOR : 200kw / 3.3 KV

DIESEL ENGINE

MAKE : KIRLOSKAR CUMMINS

TYPE : COMPRESSION IGNITION

RATING : 231 hp

SPEED : 1500RPM

NTPC SIMHADRI



SPRINKLER PUMPS

NO OF PUMPS : 2 (1MOTOR DRIVEN, 1 DIESEL DRIVEN)

MAKE : KIRLOSKAR

CAPACITY : 410 M3/Hr

HEAD : 88MWC

MOTOR RATING : 200 KW/ 3.3 KV

DIESEL ENGINE

MAKE : KIRLOSKAR CUMMINS

TYPE : COMPRESSION IGNITION

RATING : 231 hp

NTPC SIMHADRI



FIRE WATER PUMPS AUTO OPERATION AVAILABLE.

TOTAL FIRE WATER PUMP HOUSE PLC BASED OPERATION.

UNLIKE OTHER PROJECTS HERE PUMPS SUCTION IS FROM TANKS WHICH ARE ABOVE THE GROUND.

TANK MAKEUP IS FROM RAW WATER PUMP DISCHARGE.

TANK LEVEL IS BEING MAINTAINED WITH THE HELP OF MOV IN AUTO.

MODIFICATION :

FIRE WATER PUMPS RUNNING STATUS PROVIDED IN DDCMIS.

FIRE WATER HEADER PRESSURE INDICATION PROVIDED IN DDCMIS.

FIRE WATER PUMP RUNNING ALARM PROVIDED IN DDCMIS.

FIRE WATER TANK LEVELS PROVIDED IN DDCMIS

NTPC SIMHADRI



AUTOMATIC START UP SEQUENCE FOR HYDRANT PUMPS :

IF ANY PUMP RUNNING

HM 01 < 6.5 ksc WITH TD 15 Sec



HD 01 < 5.0 ksc NO TIME DEAY

IF NO PUMP RUNNING

HM 01 < 6.5 ksc WITH NO TD



AUTO SEQUENCE IS CHECKED ONCE IN A MONTH. PROTOCOL DULY SIGNED BY OPERATION AND C&I

NTPC SIMHADRI



NTPC SIMHADRIFIRE PROTECTION SYSTEM

FIRE WATER(BOOSTER) PUMP HOUSE

• FIRE BOOSTER PUMP HOUSENO OF PUMPS : 02

(1 MOTOR DRIVEN & 1 DIESEL DRIVEN)CAPACITY : 137 M3HEAD : 56 MWCRATING : 45 KW

NTPC SIMHADRIFIRE PROTECTION SYSTEM

FIRE WATER(BOOSTER) PUMP HOUSE

BOOSTER PUMPS MAINLY CATERS THE NEEDS OF• HYDRANTS AT HIGHER ELEVATIONS OF BOILER.• HYDRANTS AT CHP HIGHER ELEVATIONS TPS.

MODIFICATION:

• BOOSTER PUMP DISCHARGE ALSO CONNECTED TO HIGH RISE CONVEYER MULSIFIER SYSTEM.

FIRE HYDRANT SYSTEM

FIRE HYDRANT SYSTEM

HYDRANT SYSTEM CONSISTS OF LARGE NETWORK OF PIPES BOTH UNDERGROUND AND ABOVE GROUND.

INDOOR AND OUTDOOR HYDRANT VALVES LOCATED THROUGHOUT THE POWER STATION.

ENTIRE HYDRANT NETWORK IS DIVIDED INTO THREE RING MAINS.

ALL RINGS MAINS ARE INTERCONNECTED TO EACH OTHER.

NTPC SIMHADRI


RING MAIN – I

WHICH COVERS BOTH BOILER & TG AREA, TRANSFORMERS YARD, BOTH ESP & VFD CONTROL ROOMS, BOTH ESP’S

RING MAIN – II

WHICH COVERS HFO PUMP HOUSE, CANTEEN, PERMANENT STORES, CONSTRUCTION OFFICE, ENTIRE CHP, H2 PLANT

RING MAIN – III

WHICH COVER DM PLANT, WATER PRE TREATMENT PLANT, CHLORINATION PLANT, CW PUMP HOUSE, SWITCH YARD, FIRE STATION, GATE COMPLEX AND TIME OFFICE

NTPC SIMHADRI


FIRE HYDRANT SYSTEM

MODIFICATIONS DONE:INSTEAD OF HYDRO PNEUMATIC TANK ONE HYDRANT

PUMP IS KEPT IN SERVICE CONTINUOSLY.ACCORDINGLY PUMP AUTO START SETPOINTS CHANGED.BOTTOM ASH HOPPER FILLING IS FROM FIRE HYDRANT

LINE.BOTTOM ASH HOPPER SEAL TROUGH FILL AND

REFRACTORY COOLING WATER IS FROM FIRE HYDRANT LINE.

FIRE BOOSTER PUMP IS KEPT IN SERVICE CONTINUOSLY FOR KEEPING THE HIGH RISE COAL CONVEYERS MULSIFIERS IN AUTO.

NTPC SIMHADRI


FIRE HYDRANT SYSTEM

FIRE SPRINKLER SYSTEM

SPRINKER SYSTEM

SPRAYS WATER IN FINELY DIVIDED DROPLETS TRAVELLING AT HIGH OR MEDIUM VELOCITY TO GIVE PROTECTION TO THE FIRE AFFECTED AREA.

THE SPRAY SYSTEM CAN CONTROL FIRE IN THREE WAYS :

SMOOTHERING: BY DIRECTLY COOLING THE SURFACE OF THE LIQUID, THUS REDUCING THE RATE OF VAPOURISITION

BLANKETING : BY PRODUCING STEAM WHICH DILUTES THE AIR AND VAPOUR FEEDING THE FIRE

COOLING: BY INTRODUCING DROPLETS INTO THE FLAME THUS COOLING IT AND REDUCING THE TRANSFER OF HEAT BACK TO THE LIQUID SURFACE

NTPC SIMHADRI


PRESSURISATION SYSTEM

PRESSURISATION OF RING MAINS / SPRAY LINES SHALL BE DONE THROUGH THE COMBINATION OF HYDRO-PNEUMATIC TANK, JOCKEY PUMPS AND AIR COMPRESSORS (2 X 100%CAPACITY)

MINOR LEAKAGE IN THE PRESSURISED FIRE WATER SYSTEM SHALL BE REPLENISHED FROM HP TANK.

HP TANK SHALL BE FILLED WITH JOCKEY PUMP UPTO ½ OR 2/3 OF THE PORTION.

TANK PRESSURE WILL BE MAINTAINED WITH DEDICATED AIR COMPRESSOR.CAPACITY OF JOCKEY PUMPS

NO OF PUMPS : 2 NOS (BOTH MOTOR DRIVEN)CAPACITY : 40 M3/HR HEAD : 88 MWC

NTPC SIMHADRI


BASED ON REQUIREMENT SPRAY SYSTEM IS CONSIDERED AS

• HIGH VELOCITY WATER SPRAY SYSTEM (HVW)

• MEDIUM VELOCITY WATER SPRAY SYSTEM (MVW)

THE SYSTEM IS DESIGNED SO THAT, THE RUNNING PRESSURE OF WATER IN SPRAY SYSTEM IS

1.4 TO 3.5 KSC FOR MVW SYSTEM

3.5 TO 5.0 KSC FOR HVW SYSTEM

NTPC SIMHADRI


SPRINKLER SYSTEM

AUTOMATIC HIGH VELOCITY WATER SPRAY SYSTEM

DETECTORS ARE OF QUARTZOID BULB TYPE OF 79OC FIXED TEMP

HVW NOZZLES OF VARIOUS SPRAY ANGLES.

FIRE IS SENSED BY BREAKAGE OF QUARTZOID BULB AND DROP IN PRESSURE.

THIS WILL RESULT IN OPERATION OF DELUGE VALVE AND SPRAY OF THE PROTECTED AREA.

DELUGE VALVE OPERATION ALARM IS PROVIDED IN FIRE ALARM PANEL.

NTPC SIMHADRI


SPRINKLER SYSTEM

HVW SPRAY SYSTEM COVERS

GENERATOR TRANSFORMERS

STAND BY TRANSFORMER

UNIT AUXILIARY TRANSFORMER

MISCELLANEOUS SERVICE TRANSFORMER

MAIN OIL TANK & OIL PURIFIER

CENTRAL LUBE OIL PURIFIER UNIT ROOM

BOILER BURNER FRONT

BFP LUBE OIL TANKS & COOLERS

GENERATOR SEAL OIL UNIT

TURBINE OIL CANALS

FUEL OIL TANKS FOR D.G.SETS

NTPC SIMHADRI


MEDIUM VELOCITY WATER SPRAY SYSTEM

IN ORDER TO AVOID TOTAL FLOODING OF THE AREA IN THE EVENT OF A FIRE IN A PARTICULAR ZONE, THE AREA IS DIVIDED INTO NO.OF ZONES

EACH ZONE WILL HAVE SEPARATE WATER SUPPLY NETWORK CONTROLLED BY A DELUGE VALVE.

IN THE EVENT OF FIRE IN ANY ZONE, DELUGE VALVE OF CORRESPONDING ZONE AND THOSE OFADJACENT ZONE ON EITHER SIDE SHALL BE OPENED.

NTPC SIMHADRI


SPRINKLER SYSTEM

MVW SPRAY SYSTEM

ALL CABLE GALLERIES / CABLE VAULTS / CABLE SPREADER ROOM

FUEL OIL PUMPING STATION

ALL CONVEYORS INCLUDING TP’S AND CRUSHER HOUSE

OUTSIDE SHELL SURFACE OF FUEL OIL TANKS

NOTE : SMOKE DETECTORS OF BOTH IONISATION AND PHOTO-ELECTRIC TYPE IN CROSS ZONING PRINCIPLE SUPPLEMENTED WITH LINEAR HEAT SENSING CABLES SHALL BE USED TO DETECT FIRE IN CABLE GALLERIES.

NTPC SIMHADRI


SPRINKLER SYSTEM

DELUGE VALVE

OPERATION OF DELUGE VALVE

CONSTRAINTS:

MOT,SEAL OIL SYSTEM,OILCANEL MULSIFIER NOT KEPT IN AUTO ENDANGEROURING THE UNIT RUNNING.

CABLE GALLERY BELOW UCB NOT KEPT IN AUTO AS BELOW THIS FLOOR UPS AND EAST(C&I) PACKAGE PANELS ARE LOCATED.

NTPC SIMHADRI


SPRINKLER SYSTEM

FOAM INJECTION SYSTEM

FOAM SYSTEM FOAM PROTECTION SYSTEM SHALL BE PROVIDED FOR FOPH AREA AND FUEL OIL TANKS.

THIS CONSIST OF :

a) FOAM CONCENTRATE DISCHARGE PUMP (2 nos)

b) FOAM CONCENTRATE DISCHARGE TANKS.

c) BALANCE PRESSURE PROPOTIONERS WITH AUTOMATIC CONTROLLING VALVES

e) FOAM MAKER FOR INDIVIDUAL FO TANK

f) FOAM HYDRANT POINT AROUND THE DYKE.

NTPC SIMHADRI


FIRE IN THE TANK SHALL BE DETECTED BY MEANS OF THERMAL STRIPS DETECTOR.

FOAM PUMP WILL TAKE START IN AUTO.

RELATED MOTOR OPERATED VAVLES OPENS IN AUTO FOR CORRESPONDING EFFECTED TANK.

AQUEOUS FILM FORMING FOAM (AFFF) WILL POUR INTO THE TANK.

WATER REQUIREMENT FOR FOAM SYSTEM IS TAPPED FROM HYDRANT SYSTEM HEADER

NTPC SIMHADRI


FOAM SYSTEM

LS1 LS2

PS

PS

PS

PS

PGPG PGPG PGPG PGPG PGPG

FOAM CONCENTRATION TANK - 1

FOAM CONCENTATION TANK - 2

PROPOTINERS WITH CONTROL V/V’S

LDO TANK-1 LDO TANK-2

HFO TANK - 1

HFO TANK - 2

DM

HYDRANT LINE

FOAM CONCENTRATE LINE

NTPC SIMHADRI


FOAM PUMP HOUSE

MODIFICATION DONE:

FOAM OPERATION ALARM HAS BEEN PROVIDED IN FOPH CONTROL ROOM ALONG WITH CHP FAP-3 PANEL.

COSTRAINT:

SYSTEM COULD NOT BE KEPT IN AUTO AS FOAM SYSTEM INVOLVES MORE NUMBER OF MOV WHICH ARE LIKELY TO BE PASSING AND WATER MAY ENTER INTO THE FUEL OIL TANKS.

NTPC SIMHADRI


FOAM SYSTEM

INERGEN GAS SYSTEM

INERGEN SYSTEM

AREAS TO BE COVERED UNDER THIS SYSTEM ARE (6 ZONES)

UNIT CONTROL ROOM

EER 1 & 2 (17.5 MTS)

COMPUTER ROOM (17 MTS)

UPS ROOM 1 & 2 AT 8.5 m

“INERGEN SYSTEM OPEATION IS AUTOMATIC THROUGH FIRE SMOKE DETECTORS ( BOTH PHOTO ELECTRICAL AND IONISATION TYPE ON CROSS ZONE CONCEPT )

NTPC SIMHADRI


THERE ARE TWO STREAMS OF CYLINDERS (MAIN AND RESERVE).

EACH STREAM CONSIST OF 105 CYLINDERS.

EACH STREAM IS DIVIDED INTO THREE BANKS (BANK-1, 2, 3)

GAS IS RELEASED INTO DISCHARGE MANIFOLD THROUGH SOLENOID VALVES FROM THE CYLINDERS.

FROM DISCHARGE MANIFOLD GAS GOES TO EFFECTED ZONE THROUGH DIRECTION VALVES.

CYLINDER FITTED WITH ELECTRICAL ACTUATOR (SOLENOID) ON THE CYLINDER VALVE ARE TERMED AS “ MASTER CYLINDER”, WHEREAS THE REMAINING CYLINDERS TERMED AS “SLAVE”

NTPC SIMHADRI


INERGEN SYSTEM

REQUIREMENT OF “INERGEN” GAS QUANTITY :

TO EXTINGUISH A FIRE USING AN INERT GAS, THE OXYGEN LEVEL IN THE PROTECTED VOLUME HAS TO BE REDUCED.

FOR A STANDARD “INERGEN” SYSTEM , THE EFFECTIVE DESIGN CONCENTRATION FOR EXTINGUISHING SHALL BE 37.5% OF INERGEN GAS LEVEL .

THUS REDUCING THECONCENTRATION OF O2 TO THE REQUIRED LEVEL.

EER – 1 (17 mt)

( 2709 M3 )105 Nos

EER – 2 (17 mt)

( 2709 M3 )105 Nos

UCR 1& 2

( 1275 M3 )105 Nos

COMPUTER ROOM

( 651 M3 )53 Nos

EER-1 & UPS (8.5m)

( 503 M3 )41 Nos

EER-2 & UPS (8.5 m)

( 503 M3 )41 Nos

NTPC SIMHADRI


BANK -1 MAIN

BANK –1 RESERVE

BANK – 2 MAIN

BANK – 2 RESERVE

AS 9AS 7

INERGEN CYLINDER BANK

AS 10AS 8

UCR-1

(DV14)

EER-2

(DV13)

EER-1

(DV15)

UCR-2

(DV12)

EER-1

(DV11)

EER-2

(DV10)

COMP ROOM

(DV 9)

EER-1&UPS

(DV 8)

EER-2 & UPS (DV 7)

AS 5

AS6

AS3

AS4

AS1

AS2

BANK – 3 MAIN

BANK – 3 RESERVE

EER-1

(DV 6)

EER-2

(DV 4)

COMP ROOM (DV 3 )

EER-2 & UPS ( DV 1)

UCR-2

(DV 5)

EER-1 & UPS ( DV 2)

UCR 1&2

EER-1

EER-2

COMP ROOM

EER-2 & UPS

EER-1 & UPS

B1 M - 18

B1 M – 17

B2 M – 35

B3 M - 35

A - 05

A – 07

A – 03

A - 01

DV – 5

DV – 12

DV - 14

A – 06

A – 08

A – 04

A - 02

B1 R – 18

B1 R – 17

B2 R – 35

B3 R - 35

1. UCR 1 & 2

2. EER -1

B1 M - 18

B1 M – 17

B2 M – 35

B3 M - 35

A - 05

A – 07

A – 03

A - 01

DV – 6

DV – 11

DV - 15

A – 06

A – 08

A – 04

A - 02

B1 R – 18

B1 R – 17

B2 R – 35

B3 R - 35

B1 M - 18

B1 M – 17

B2 M – 35

B3 M - 35

A - 05

A – 07

A – 03

A - 01

DV – 4

DV – 10

DV - 13

A – 06

A – 08

A – 04

A - 02

B1 R – 18

B1 R – 17

B2 R – 35

B3 R - 35

3.EER - 2

*** A - ACTUATOR** DV – DIRECTIONAL VALVE

NTPC SIMHADRI


B1 M – 18

B2 M - 35

A – 05

A - 03

DV – 3

DV - 9

A – 06

A - 04

B1 R – 18

B2 R - 35

4.COMPUTER ROOM

B1 M – 06

B2 M - 35

A – 09

A - 03

DV – 3

DV - 8

A – 10

A - 04

B1 R – 06

B2 R - 35

5.EER & UPS (U#1)

B1 M – 06

B2 M - 35

A – 09

A - 03

DV – 1

DV - 7

A – 10

A - 04

B1 R – 06

B2 R - 35

6.EER & UPS (U#2)

NTPC SIMHADRI


FIRE DETECTION

AND

ALARM SYSTEM

FIRE IS BEING DETECTED BY VARIOUS MEANS

IONISATION TYPE SMOKE DETECTION SYSTEM

PHOTO ELECTRIC TYPE SMOKE DETCTION SYSTEM

LINEAR HEAT SENSING CABLE DETECTION SYSTEM

INFRA RED DETECTORS

NON ADDRESSABLE QUARTZOID BULB HEAT DETECTION SYSTEM

ADDRESSABLE ELECTRICAL TYPE HEAT DETECTORS

NTPC SIMHADRI

FIRE PROTECTION SYSTEMFIRE DETECTION & ALARM SYSTEM

IONISATION SMOKE DETECTOR

SENSING ELEMENT OF THE DETECTOR IS AN IONISTION CHAMBER

IT CONSISTS OF TWO ELECTRODES AND A RADIOACTIVE SOURCE, AMERICIUM 241, FOR IONISING THE AIR IN THE CHAMBER

SOURCE EMITS ALPHA PARTICLE THAT COLLIDE WITH AIR MOLECULES DISLODGE THEIR ELECTRONS

EQUAL NO OF + AND – IONS IS CREATED AND WILL BE ATTRACTED BY THE ELECTRODES.

CREATING A SMALL ION CURRENT THROUGH THE CHAMBER (APPRO. 0.3mA)

IF ANY SMOKE IS BEING SENSED, THE CHANGE IN ION CURRENT SENSED BY ELECTRONIC CIRCUIT

NTPC SIMHADRI


PHOTO – ELECTRIC SMOKE DETECTOR

SENSING ELEMENT OF THE DETECTOR IS AN OPTICAL CHAMBER OPERATING ON THE SCATTERED LIGHT EFFECT

AN INFRARED LIGHT EMITTING DIODE IS BEAMED INTO THE CHAMBER

THIS LIGHT DOES NOT REACH THE PHOTOCELL DIRECTELY, BUT SMALL AMOUNT OF LIGHT IS SCATTERED ENTERS THE PHOTOCELL

IF SMOKE ENTERS THE CHAMBER, MORE LIGHT WILL BE SCATTERED, AND THE SIGNAL FROM PHOTOCELL INCREASES

IF ANY SMOKE IS BEING SENSED, CHANGE IN AMOUNT OF LIGHT REACHES THE PHOTOCELL WILL BE VARIED, THIS VARIATION GIVES THE INDICATION FOR PRESENCE OF SMOKE

NTPC SIMHADRI


HEAT DETECTORS

SENSING ELEMENT OF DETECTOR IS A THERMISTOR WITH NEGATIVE TEMPERATURE COEFFICIENT, WHICH IS EXPOSED TO THE AMBIENT AIR

A CAPACITOR CONNECTED TO A COMPACTOR IS BEING CHARGED AND COMPARED TO A REF VOLTAGE. THIS REF VOLTAGE IS CONTROLLED BY THE VALUE OF THE THERMISTOR

WHEN CHARGING VOLTAGE REACHES THE REF, THE DETECTOR TURNS OFF AND TERMINATES AND ANSWER TIME. NORMALLY, ANSWER TIME WILL BE APPR. 60mS

ANSWER TIME INCREASES WITH RISE IN TEMP

NTPC SIMHADRI


LINEAR HEAT SENSING DETECTOR

THIS TYPE OF DETECTORS ARE USED IN ALL CABLE GALLERIES / CABLE VAULTS

LINEAR HEAT SENSOR IS A TWIN CONDUCTOR CABLE WITH TEMPERATURE SENSITIVE INSULATION PROTECTED BY A SPECIAL POLYMER OUTER SHEATH TO MEET SPECIFIC REQUIREMENT

SENSING CABLE WILL RUN ACROSS THE CABLE GALLERY

LHS CABLE OPERATES BY SHORT CIRCUITING IN A FIRE CONDITION.

NTPC SIMHADRI


INFRARED DETECTOR

THESE DETECTORS ARE BASICALLY CAMERA TYPE AND USED FOR DETECTING THE FIRE IN MOTION.

COAL BELT CONVEYORS IN CHP ARE BEING PROVIDED WITH THESE TYPE OF DETECTOR TO DETECT THE FIRE.

NTPC SIMHADRI


FIRE DETECTION & ALARM SYSTEM

THE CENTRALIASED FIRE DETECTION & ALARM SYSTEM PROVIDED WITH. MASTER SYSTEM CPU.-BS400 ANALOG ADDRESSABLE PANELS INCLUDING ALARM MONITORING MODULES, SYSTEM SUPERVISORY CONTROL MODULES, ISOLATORS,OUT PUT CONTROL MODULE PC – PENTIUM BASED MONITORING STATIONS AT UCB # 1&2 AND CHP CONTROL ROOM.


FIRE DETECTION & ALARM SYSTEM

REPEATOR PANEL AT FIRE STATION.SWITCHYARD CONTROL ROOM ALARM STATION.ANALOG ADDRESSABLE SMOKE/HEAT AND GAS DETECTORSNON ADDRESSABLE TYPE DETECTORS.PANELS DISPLAY VISUALLY AND AUDIBLY LOCATION DETAILS OF THE DETECTOR(S) WHERE FIRE / FAULT HAS OCCURRED.FIRE ALARM SIREN IS PROVIDED ABOVE THE SANKALP BUILDING WITH A RANGE OF 5KM RADIOUS.


FAP 1

FAP 2

FAP 3 CHP

BS 100

COMMUNICATION CARD

COMMUNICATION CARD

COMMUNICATION CARD

BSL - 100

MULTI

PLEXER

KDL-26B

CENTRAL

CPU-BS400

PC -1 U#1

PC – 2 U#2

REPEATOR PANEL

FIRE STATION

PC-3

CHP

NTPC SIMHADRI FIRE PROTECTION SYSTEMCENTRAL MONITORING SYSTEM

NTPC SIMHADRI


CONFIGURATION OF FIRE ALARM PANEL

ISD PSD

LOOP

MODULE

BSD - 100

FAP

MICRO

PROCESSOR

BSJ 100

CONTROL

OUTPUT

MODULE

RELAY

BOARD

PS

INTERFACE UNIT

MAX NO.OF DETECTOR IN A LOOP : 99

BSU - 50

AREAS UNDER EACH LOOP ( TOTAL NO OF LOOPS : 08)

AREALOOP

ESP CABLE VAULT 0 & 8.5 m; SWITCHGEAR 3.5 m 00

ESP CONTROL ROOM 12 m; BBF 01

CABLE VAULT 0 m; HT SWITCHGEAR 3.5 m 02

CABLE VAULT 5.1&8.5m; UPS 8.5m; DCDB 03

BATTERY ROOM

NTPC SIMHADRI


AREAS UNDER EACH LOOP ( TOTAL NO OF LOOPS : 08)

AREALOOP

LT SWRG 12m & CABLE VAULT 13.5m 04

UCB, EER, COMPUTER ROOM 05

CABLE VAULT 24m; BOILER MCC 06

TRANSFORMER AREA; DM PLANT; CWPH; CPU 07

DMPH-MCC; FWPH; BOOSTER P/H

NTPC SIMHADRI


NITROGEN INJECTION FIRE PROTECTION SYSTEM

THIS SYSTEM IS BEING USED FOR SEA WATER TRANSFORMERS ( 33 / 11 KV )

NITROGEN GAS IS USED TO CHILL THE OIL IN THE TRANSFORMER AND CREATE A BLANKETING EFFECT OVER THE OIL BATH

THIS SYSTEM IS DESIGNED FOR OIL FILLED TRANSFORMERS

SYSTEM TAKES CARE FOR BOTH INTERNAL FAULTS RESULTING IN ARC AND EXTERNAL FAILURE LIKE BUSHING FIRE, OLTC FIRE, etc.

NTPC SIMHADRI


SEA WATER TRANSFORMER N2 INJECTION SYSTEM

THIS SYSTEM WORKS ON THE PRINCIPLE OF “DRAIN AND STIR”

DRAINS A PRE DETERMINED QUATITY OF OIL FROM THE TANK TOP THROUGH OUTLET VAVLE

REDUCES THE TANK PRESSURE

INJECTS INTROGEN GAS FROM THE LOWER SIDE OF THE TRANSFORMER THROUGH VALVES TO CREATE STIRRING ACTION INSIDE.

REDUCES THE TEMPERATURE OF OIL BELOW FLASH POINT TO EXTINGUISH THE FIRE

TRANSFORMER ISOLATION IS AN ESSENTIAL PRE REQUISITE FOR ACTIVATING THE SYSTEM

NTPC SIMHADRI


INTERNAL FAILURE EXTERNAL FIRE REMOTE/MANUAL TRIGGERING

DIFFERENTIAL RELAY TRIP

FIRE DETECTOR MANUAL OPERATION

BUCHHOLZ RELAY TRIP

P R V TRIP

CIRCUIT BREAKER TRIP (TRS ISOLATION)

MAINTENANCE LOCK

OIL DRAIN VALVE OPENPNRV OPERATION

(CONSERVATIVE OIL ISOLATION) TIME DELAY

0.5-0.7 SECMAINT LOCK

NITROGEN INJECTION

LOGICAL DIAGRAM FOR N2 INJECTION SYSTEM

NTPC SIMHADRI


CISF – FIRE WING

1 No FIRE WATER TENDER; TYPE – B FIRE BRIGADE

1 No FIRE JEEP WITH TRAILER PUMP WITH ALL ACCESSORIES

1 No FOAM TENDER WITH ALL ACCESSORIES

4 Nos FIRE SUITS

10 Nos BREATHING APPARATUS

2 SETS OF FIRST AID KITS

2 Nos TELESCOPIC LADDERS

10 Nos FIBER GLASS BLANKETS

NTPC SIMHADRI



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