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Products   >   LED Based Emergency Light
LED BASED EMERGENCY LIGHT
 

The general lighting inside the coaches is provided by 110 V dc or 110V ac supply. The supply system is backed up by battery system 110V dc for self generation type coaches and Emergency battery back up 110V dc or 24V dc system for End On Generation system type of coaches. But during extreme emergencies like derailment and accidents etc. sometimes these supply system fail, causing total darkness inside the coach.

To facilitate easy exit of passengers and their immediate rescue during such emergencies, this emergency lighting system is developed to provide illumination during failure of all power supplies inside the coach. These emergency lights provided inside the coach and on doorways would switch ‘on’ automatically in the event of failure of normal supply system. Hence reliability of Emergency Light Unit is of paramount importance.
emargeny
 
FEATURES:
  • The Emergency Lighting system delivers full output for an initial period of 2 hours and with reduced power for the subsequent 10 hours and shall have sufficient battery capacity of 12 Ah to ensure working of emergency light continuously for 12 hours to provide the required illumination.

  • The equipment is sturdy and suitable up to train speed of 160 Kmph , relative humidity up to 98% during rainy season, altitude max 1200 meter above sea level

  • The equipment is designed to work in Coastal area i.e humid salt laden and corrosive atmosphere at maximum Ph value 8.5.

  • The system of wiring in the Rolling stock is two wire for 110V dc or 24V dc system.

  • Each emergency unit contains Sealed Lead Acid Maintenance Free type (SMF) Battery of 12 Ah capacity.

  • The battery is charged at 13.5V +/- 0.1V in floating mode.

  • In order to keep the battery in healthy condition the emergency light stops working as soon as the battery voltage reduces to 10.5V.

  • The actual current drawn by LEDs is such that AH drawn from the battery does not exceed 7AH for new emergency light unit.

  • The power supply circuit of the emergency light unit has the provision of auto reset in case of the following faults

    a.    Power supply output over current fault

    b.    Power supply short circuit fault

    c.    Stuck aginst transient & surge fault

    d.    Input overvoltage fault (over 200 volts)

  • The unit is fitted on the roof ceiling / partition wall of the coach. The battery portion of the light fitting will be concealed and only LED portion of the light fitting will be projecting outside.

  • Fire retardant, transparent polycarbonate sheet of thickness 0.75mm to 1mm is provided for protection of LED from external damage and ingress of dirt.

  • The emergency light switches ‘on’ automatically in case normal battery system of the coach fails during any unforeseen circumstances

  • The system works in extreme dusty, foggy, and desert terrain conditions in certain areas.

  • The electronic circuits, PCB and components meets the RDSO Spec.No. ELRS/SPEC/SI/0015 – OCT. 2001 (Rev.0) for reliability of Electronics in rolling stock application.
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