Thursday, 6 November 2014

Voice Evacuation System

Voice Evacuation System is a multi-function supervised paging, messaging, background music delivery and emergency voice evacuation system with 24 VDC battery backup.it is also like a fire Warning System.Voice Evacuation Systems provide a tremendous advantage in an emergency situation. And they are simpleto use, making them even more effective. The Voice-Plus systems deploy clear and loud evacuation instructions in up to four-minute segments.Voice Evacuation and Messaging system is designed for distributed intelligence and ultimate survivability.it can utilice pre-recorded emergency voice messages,warning that emergency has been reported.Voice Evacuation System operates in conjunction with the Fire Alarm Control Panel (FACP) in a building to provide automatic response to life safety emergencies.
                                                       

Requirements For Voice Alarm Systems
  • A voice alarm system, which is used with fire alarm panels, provides a manually or automatically activated acoustic fire alarm signal in the building.
  • A fire alarm system with voice alarm requires a voice system controller for the control of alarm signals and fire alarm announcements. 
  • The voice alarm system can be a seperate unit or a physical combination with the fire alarm panel.

Features Of Voice Alarm Systems
  • Complete range
  • Extensive built-in functionality
  • State-of-the-art audio technology
  • Reliable operation
  • Easy to install
  • Economic solution for many applications                                                


Applications Of Voice Alarm Systems
  • Integration of analog and addressable hardwired circuits allows system engineers to customize panels and maximize efficiency for a given application.
  • Up to five field-programmable messages
  • Expandable to 50 watts

Tuesday, 4 November 2014

Standard Spray Sprinklers

A fire sprinkler operates the water stream discharging from the orif ce impacts a deflector, which produces a specific spray discharge pattern.discharge pattern of standard spray upright and pendent sprinklers is a half paraboloid (umbrel a shaped) pattern completely filled with water droplets.The intent of a standard spray sprinkler is to wet as much of the floor as possible. They are listed for their ability to control various fire hazards and have specific areas of coverage.
                                                          

Standerd response Dry sprinklers are thermosensitive spray sprinklers suitable for use in area subject to freezing.the sprinklers are designed for dry systems and preaction system where it is necessary to prevent water or condensation from entering the drop nipple before sprinkler operation.Spray sprinklers are intended for use in the sprinkler systems designed in accordance with the standard installation rules recognized by the applicable listing or approval agency. They are available in pendent, upright, recessed, horizontal sidewall styles.The sprinkler heads used for residential and small commercial irrigation versus large turf rotors is their actuation.  On smaller sights sprinkler heads are laid out in a block formation and several heads are actuated at one time when either a manual or electric valve is opened.Standard spray sprinklers are designed to produce large discharge capacity in a hemispherical pattern standard in commercial applications.  Available in pendent, recessed pendent and upright configurations for most commercial applications.
                                                                    

Wednesday, 29 October 2014

Dry Pipe Sprinkler System

Dry pipe system is a sprinkler system employing automatic sprinklers installed on a piping system containing air. systems provide automatic protection in spaces where freezing is possible. dry pipe systems are the second most common sprinkler system type. In regions using NFPA regulations, dry pipe systems cannot be installed unless the range of ambient temperatures reaches above 40F.The dry pipe valve and related equipment must be in a heated location.sprinkler system.The sprinkler heads in a deluge system are open, meaning they don't have a trigger function and are activated simultaneously.They are most often used in unheated buildings, in parking garages, in outside canopies attached to heated buildings, or in refrigerated coolers.dry systems have a slower response time, they should be converted to wet-pipe systems as soon as sufficient heat becomes available. 

      

Dry Pipe Fire Sprinkler Systems Include

Retail and residential parking garages
Industrial warehouses
Loading docks
Commercial freezers
Residential attics

                                               

Advantageous for protection of collections and other water sensitive areas. This perceived benefit is due to a fear that wet system piping may leak, while dry pipe systems will not. However, the same potential for accidental water damage exists, as dry pipe systems will only provide a slight delay prior to water discharge while the air in the piping is released from the pipe.                      

Wednesday, 8 October 2014

Safety Fire Alarm System in india

The Alarm System has varied applications and is used across many industries for security purpose.The Fire Alarm panel is the component, the hub of the system monitoring inputs and system integrity, control outputs and relays information.Primary Power supply Commonly the non-switched 120 Volt Alternating Current source supplied from a commercial power utility. In non-residential applications, a branch circuit is dedicated to the fire alarm system and its constituents. "Dedicated branch circuits" should not be confused with"Individual branch circuits" which supply energy to a single appliance.Secondary (backup) Power supplies component commonly sealed, lead-acid storage batteries or other emergency sources including generators, is used to supply energy in the event of a primary power failure.Initiating Devices component acts as input to the fire alarm control unit and are either manually or automatically activated.


Fire detectors must be coupled with alarms. Alarm systems provide notice to at least the building occupants and usually transmit a signal to a staffed monitoring station either on or off site. In some cases, alarms may go directly to the fire department, although in most locations this is no longer the typical approach.
                                                        

Tuesday, 30 September 2014

Burglar alarm system kerala

Burglar alarm system consist of diverse sensors (detectors) and alarm control panel, with the function of intrusion detection and smoke detection, as well as summon aid in an emergency.The work of the home security system begins with the sensors and motion detectors. These devices are installed in different places that they monitor in their own ways. However, they send emergency signals to the control panel once they detect something that surpasses their tolerance level.The control panel of the system works like the brain and decide the next step of action. Basically, there are two different things that the control panel performs. It can set off an alarm located near the house to alert the     homeowner and the neighbors.The keyboard provided with the home security system enables the users to arm, disarm andprogram the security system according to their wish. Most of the time, users are given multiple keyboards so that they don't have to rush from one place to another to find the keyboard in emergency.
                                                 
                                                     
  

Applications

Hotel and Hospitality
Retail & Leisure
Finance & Data Centers
Industries
Education
Healthcare
Utilities
Transport and Distribution
Local & Regional Government

Saturday, 23 August 2014

Emergency Lighting System


Emergency lighting is a self-descriptive term and is lighting for an emergency situation when the main power supply fails. The loss of mains electricity could be the result of a fire or a power cut and the normal lighting supplies fail. This may lead to sudden darkness and a possible danger to the occupants, either through physical danger or panic.


Emergency lighting is normally required to operate fully automatically and give illumination of a sufficiently high level to enable persons of all ages to evacuate the premises safely. Most new buildings now have emergency lighting installed during construction, the design and type of equipment is normally specified by the relevant local authority, architect or consultant.

The British Standard provides the emergency lighting designer with laid down guide lines which form the general basis for the designer to work to. British Standard BS 5266: Part 1: 2005 includes in its scope residential hotels, clubs, hospitals, nursing homes, schools and colleges, licensed premises, offices, museums, shops, multi-storey dwellings etc. Although this standard recommends the types and durations of emergency lighting systems relating to each category of premise it should be remembered that the standards are minimum safe standards for the types of premises and that a higher standard may be needed for a particular installation.

Type of system
Most emergency lighting schemes fall into one of the following categories : 
  •  Non-maintained - The emergency light units only illuminate in the event of a mains failure
  •  Maintained - The emergency light units are illuminated at all times using the same lamps for both normal and emergency operation
  •  Sustained - The emergency light units are fitted with two lamps or two sets of lamps. One of which operates on mains 240V AC supply, the other which operates from the battery supply in the event of mains failure. It is basically a non-maintained system with the addition of mains lamps which should be illuminated whenever the premises are occupied

Tuesday, 8 July 2014

Fire Fighting System India


A fire fighting system is probably the most important of the building services, as its aim is to protect human life and property, strictly in that order.  

It consists of three basic parts:
  •  fire storage tanks
  • a specialised pumping system,  
  • a large network of pipes ending in either hydrants or sprinklers 
fire hydrant is a vertical steel pipe with an outlet, close to which two fire hoses are stored . During a fire, firefighters will go to the outlet, break open the hoses, attach one to the outlet, and manually open it so that water rushes out of the nozzle of the hose. The quantity and speed of the water is so great that it can knock over the firefighter holding the hose if he is not standing in the correct way.  As soon as the fire fighter opens the hydrant, water will gush out, and sensors will detect a drop in pressure in the system. This drop in pressure will trigger the fire pumps to turn on and start pumping water at a tremendous flowrate.




sprinkler is a nozzle attached to a network of pipes, and installed just below the ceiling of a room. Every sprinkler has a small glass bulb with a liquid in it. This bulb normally blocks the flow of water. In a fire, the liquid in the bulb will become hot. It will then expand, and shatter the glass bulb, removing the obstacle and causing water to spray from the sprinkler. The main difference between a hydrant and a sprinkler is that a sprinkler will come on automatically in a fire. A fire hydrant has to be operated manually by trained firefighters - it cannot be operated by laymen. A sprinkler will usually be activated very quickly in a fire - possibly before the fire station has been informed of the fire - and therefore is very effective at putting out a fire in the early stages, before it grows into a large fire.  For this reason, a sprinkler system is considered very good at putting out fires before they spread and become unmanageable.