1. AT BHARAT ELECTRONICS LTD. PRESENTATION BY: PREETAM SINGH EEE IV YEAR
INDUSTRIAL TRAINING AT
BHARAT ELECTRONICS LTD.
PRESENTATION BY:
PREETAM SINGH
EEE IV YEAR

2. ABOUT BEL It manufactures advance electronic products for the defence.
It has about people spread across nine manufacturing units,and few regional offices.
Navratna status in 2007.

3. PRODUCTS OF BEL (KOTDWARA)
Instant fire detection and supressing system (IFDSS)
Switching equipment
Radio trans-receivers
Data communication terminals

4. I.F.D.S.S

5. Instant fire detection and suppressing system
It is a microcontroller based system
It is used mainly for BMP 2/2k vehicle
It detect fire and suppress fire .
It work either automatically or manually

6. Features of instrument
Suppression of fire within 150ms
LCD display
Automatic/manual operation of fire extinguisher
Engine shutdown mechanism
Data logging facility

7. Components of IFDSS Master control unit Detector unit
Audio Visual alarm unit
Squib connector assembly
Fire extinguisher

8. MCU It is AT89C51 family based micro-controller. Its has two cards-
Control card
It is for system controlling.
Power supply card
Provide supply to the system.

9. IR DETECTOR UNIT Eight IR detector units are used to detect the fire.
It is consist of-
One IRD card
Contain two IR sensors :
near sensor and far sensor
Connector

10. FIRE WIRE NTC type wire system. It is linear thermal detector.
Define for detection of ‘over heat’ and ‘fire’ condition.
It monitors the temperature of the engine.

11. AUDIO VISUAL ALARM UNIT
Indicate over heat and fire .
It consist of-
Display and audio unit
Speaker
Flasher
Engine shut down mechanism

12. ALARM AND FLASHER CARD
It is a tone generator for generating fire siren
It contain-
audio amplifier
Timer NE555
Audio speaker

13. SQUIB CONNECTOR ASSEMBLY
Required for automatic operation of fire extinguisher.
Get electrical signal from MCU.
It is a actuating mechanism.

14. FIRE EXTINGUISHER
FIRE EXTINGUISHER 3.5 kg BTM(HALON 1301) SQUIB OPERATED.
FIRE EXTINGUISHER 2 kg BCF(HALON 1211)

15. FIRE EXTINGUISHER 3.5KG BTM(HALON 1301)
Extinguish agent is BTM(HALON 1301).
It consist of followimg assembly-
Cylinder
Squib opeared valve
Rupture disc
Sta-kul assembly

16. FIRE EXTINGUISHER 2kg BCF(HALON1211)
Extinguish agent is BCF(HALON 1211).
Super pressurised to 150 psi with the help of dry nitrogen.
It consist following assembly-
Cylinder
Valve adopter

17. Various switches and tests
Status Indicator Test
Sys test
Check status of led’s , AVAU , detectors etc .
Normal /combat mode Switch.
Data ret

18. Thank You