Safety and security of any thing is of great importance and is also essential. Many systems have been designed for fire alert in which most demanding and effective system is ewis occupant warning system. Ewis occupant warning systems are fire alarms that are designed and installed on buildings to be used in case of emergency. Ewis occupant warning systems are generally used in huge buildings as in shopping malls, cinemas, stadiums and large and complex offices. Ewis occupant warning systems is designed in such a way which works zone by zone. The fire alarm is not directed in full building because if this is done people will afraid and start to run which may cause blockage for them to escape out from the building. The overcome this issue ewis occupant warning system is designed.
If fire or any hazardous material spreads out and there is a need to empty the place then ewis occupant warning system is activated. According to this system everything is handled manually. Information is transferred to one zone and then that place is made free, after that step by step places all places are made free from people. Ewis occupant warning system is the only one which gives alert in multiple languages. In case of severe emergency, there is a telephonic system designed in this system through which building wardens can communicate with each other and to the fire brigade system. To get control over bad conditions a fire indicator panel is designed which is responsible to navigate the environmental sensors which are fitted to sense the smoke and any change occurred in the environment within the building. These panels are responsible to call the fire brigade in time. This panel is usually located near the entrance to communicate with the respondents to locate the place of fire and hazardous material and assure the safe clearance.
When a fire caught out then to get control over it many good fire equipment have been proposed which must be available in such complex and large places. This fire equipment is used to extinguish fire. Most fire equipment is used by the trained fire fighters but some of this fire equipment could be handled easily by untrained persons. For fire extinguisher many materials can be used as water, carbon dioxide, foam, dry chemical powder, fire blankets, wet chemicals, water mist, clean agent and many other materials. In some organizations employees are trained to deal with fire in case of emergency to stop it from spreading all over and to extinguish it with technique to save lives and property from loss and damage. A fire can be extinguished by aiming it directly or indirectly as on its base or from the top. With the help of these techniques we can overcome the fire. Fire can be caused due to a little carelessness and its spreading depends upon the material that either it is combustible material or flammable liquid or gas. Fire can be caused due to little negligence in electrical appliances and electrical wires. Every type of fire is distinguished differently with the aid of fire equipment.