Saturday, January 22, 2011

【 Weak current College 】 05D2005 General version electrical fire zhuanpian-national standard model of the picture for description



Automatic fire alarm and fire control system (fire)
1, protection grade: this project is a class of fire building, automatic fire alarm system of protection level according to the level set.
2. system composition:
A an automatic fire alarm system;
A a fire control system;
A a fire emergency broadcasting system;
A dedicated telephone system a fire;
One elevator surveillance control system;
A an emergency lighting control and fire control system grounding.
3, fire control rooms
Fire control room located in the floor, the walls and floor of the fire resistance rating of not less than the respectively, and to separate it from other sites and settings directly into the outdoor security exports.
Fire control room is equipped with automatic fire alarm controller, deep-linked control GmbH, emergency broadcasting equipment, central computer, CRT monitor, printer, elevator operation monitoring disk and fire private telephone exchange, UPS Electronic control equipment, etc.
Fire control room located directly outside the phone alarm.
4. automatic fire alarm system:
This project uses the alarm system, on the floor of the fire signal and fire-fighting equipment monitoring and control:
1) in the Office, meeting room, stairs, passageways, restaurants and other places set smoke detectors; in hot water, kitchen, garage, etc. usually smoke a larger place setting thermal detectors; in the gas meter, kitchen sets, such as combustible gas detector; Central Hall (big room) set IR barrier or dual-band flame detector.
2) on particularly important telecom room, computer room and other places with air sampling early smoke detection system, its detection system with following | electrical can achieve and fire automatic controller and fire control facilities of linkage control, are also available through open protocol interface device to connect with the traditional alarm system.
3) point-smoke detector, flame detector, combustible gas detector, infrared beam probes and cables of wire-line fixed temperature detector selection should be consistent with GB50116-98 the automatic fire alarm system design code requirements.
4) during the construction of the main entrances and staircases mouth etc (from a fire anywhere within a partition to the adjacent one manual alarm button from dry 30 m, according to the specific circumstances of the appropriate increased set manual alarm button and fire intercom phone jack, sound and light alarms.
Each fire partitions should at least set a manual fire alarm button and speaking into the phone jack.
5) fire hydrant box set fire hydrant alarm button.
6) fire auto-alarm controller can receive smoke, heat, flame, combustible gas, air sampling of early smoke detectors and fire alarm signal flow indicator, maintenance of valve, wet alarm valve, Manual alarm button, the action signal fire hydrant button; also may receive exhaust valve, pressure valve, 70 ° c to 280 ° c, the action signal fire damper.
5. fire control:
In the layers of fire control room at the Piano Bench linkage console, its control mode to manual control, manually hard line direct control, through linkage console, can implement fire hydrant fire extinguishing systems, automatic sprinkler systems and smoke control system, the positive pressure ventilation system, fire shutter, elevators, fire emergency broadcast, fire, emergency lighting, such as monitoring the evacuation instructions and control, fire occur can be manual/automatic cut off the air-conditioning units, fan and general lighting, and other non-fire power.
1) fire hydrant system of monitoring and control:
A a fire hydrant compression pump cycle, stop control; running status and fault display;
A pump for a fire hydrant, fire hydrant regulators pumps can be pressure switch automatic/manual control;
A a fire hydrant button actions directly start a fire hydrant booster pumps: fire hydrant Kai pump button displays;
One by one manually through the hard line direct starting fire hydrant booster pumps;
A fire pump to a manually initiate fire hydrant booster pumps;
A a fire control room display fire hydrant pump power status.
2) on the sprinkler system of monitoring and control:
A a spray pressure pump start-up and shutdown control; running status and fault display;
A a monitor flow indicator, wet alarm valve, safety valve work status signals;
An a-alarm valve pressure switch actions directly start spraying pump;
One by one through direct starting hard wire manual pump spray full;
A fire pump to a manually start spraying pump;
A a fire control room display fire pressure pump power status.
3) on the positive pressure ventilation system of monitoring and control:
A positive pressure ventilator for start-up and shutdown control: running status and fault display;
A a control positive pressure air opening and status display.
One by one through direct starting hard wire manual pressure blower;
4) exhaust systems and control:
A) on a dedicated exhaust fan control:
A a smoke of start-up and shutdown control: health status and fault display;
A a control exhaust valve opens and the status is displayed;
One by one through direct starting hard wire manual; exhaust fan
B) exhaust fan control:
Normally the air blower for ventilation manually by using the in-place or DDC control: fire occurs by fire control rooms and control, and have the right to control the priority and its control is the same as with special exhaust fan.
5) fire control room to display all the exhaust valve, exhaust vents, 280 degrees centigrade fire dampers, 70 degrees centigrade fire dampers, positive-pressure blowers, positive pressure air movements signal.
6) on fire shutter control:
Fire a) for rolling doors next fall, by one side or both sides of the smoke detection, automatic control;
B) used for channel shutter two steps down, from both sides of the smoke, automatic control temperature sensor detection;
C) shutter movements signal to send to the control room can be:
D) in the roll-front side are equipped with sound and light alarm device:
e) Shutter should be set for melting device and is powered by a manual device;
7) on the control of fire door;
The automatic fire alarm controller automatically controls the closing of fire doors; fire control snap-action for release, normally open fire door closed automatically. And the action signal-to-control room.
8) Elevator monitoring and control:
A) in the fire control rooms set elevator monitoring disk, can show the power of the ladder of quilted status: normal, fault, opening, closing and the floor position display:
B) when the fire broke out, according to the fire situation and places, by fire control rooms elevator control Panel issued a directive. Command to run the program by the fire of elevator: on all or any one of the elevators for intercom, changed to run the program instructions; in addition to the fire service lift running, the other lifts to force back mesh first floor and the cabin door open.
C) electric elevator monitoring control panel and the corresponding control cable provided by elevator manufacturers.
D) lifts fire instruction switch with key switch, the fire control rooms for the elevator control fire.
9) on the control of fire-extinguishing systems:
A) on the requirements of the fire alarm system: gas fire extinguishing system as a relatively independent of the system. Individual configuration of the automatic control of the required fire detector, you can complete the entire fire extinguishing process independently.
B) can be automatic control: control room receives a gas fire extinguishing system in the alarm, injection stage sound and light signal. Close the corresponding fire doors, Windows, ventilation and air conditioning systems related to stop, close the relevant parts of the fire damper.
C) the system with manual control and emergency operation capabilities.
6, fire, emergency broadcasting system:
In fire control rooms set fire emergency broadcast (and public broadcast, soundtrack plus) Cabinet, boiler pressure-type output. Output power, fire emergency broadcasting should be building or fire partitions tap, each layer or for each fire partition all the way.
Conference room a), in the large dining-room, corridor, staircase, Elevator halls, ballrooms, garage and other public places set fire emergency radio speakers.
B) fires, fire control room watchkeeping officer under fire, auto or manual fire emergency broadcast, timely command, grooming evacuated the scene of the fire;
Playback control procedures for evacuation instructions are as follows:
A a second-tier and second-tier above floor fire, you should connect the burning layer and its adjacent lower level;
A a first floor there is a fire, you should reach this layer, Layer II and underground floors;
A fire in a basement, on the ground floor and first floor level;
A fire in a multiple-partition-story building, you should connect the burning fire prevention Division and the adjacent fire partitions.
C) emergency broadcasting should set alternate amplifiers, capacity not less than the emergency broadcast speaker maximum capacity totals 1.5 times.
7, fire dedicated telephone system:
In fire control indoor setting fire dedicated Express talk telephone exchange; in addition to Manual alarm button sets fire dedicated phone plug hole: the fire pump room, transformation and distribution Chamber, a standby generator room, smoke wind room, elevator machine room, computer room, boiler room, frozen Security Center, construction equipment monitoring center, guard duty, etc also has fire dedicated telephone extension; fire control rooms set can be directly outside line telephones, fire protection specifically left the telephone network shall be independent of fire communication system.
8, emergency lighting and fire system earthing:
Power supply: 1)
Fire fighting fish are used for the head road dual supply, and in the Terminal Setup automatic switching device, fire control room equipment is also equipped with batteries as a standby power full. This power supply is provided by the equipment the contractor is responsible for.
This project is part of the low pressure outlet head road and the various layers of docking boxes are equipped with seperate can release, fire control rooms in fire confirmed cut off power to the non-fire related.
2) system earthing:
Fire system grounding use building integrated grounding device as its next floor, separate down lead, cited the following line. Requires comprehensive grounding resistance must not be greater than ohms (when using special ground equipment, grounding resistance not larger than 1 ohm).
3) emergency lighting system:
Emergency lighting, evacuation instructions lighting using special circuit dual power distribution, and at the end of the changeover; evacuation instructions lighting and emergency lighting with regional centralized power supply (EPS) emergency lighting system, its continuous power ask not less than minutes, emergency lighting system route using fire-resistant or flame-retardant cable (wire) in-current, hanging in the downlead fire in the metal Groove. Extension with refractory or flame retardant wire wear brass SC or flame retardant treatment of hard plastic branch pipes laid in not burning darkness structural layers. And protection layer thickness not less than 30 mm, all staircases and elevator front room, fire, evacuation aisle Po, mating electrical room, pump room, smoke, fire in the engine room control room, the communications room, multi-function room, Hall and other places set emergency lighting, emergency lighting in public places is generally normal lighting of 10-15 per set.
In the large space with a bedroom, corridor, staircase, safe export and its first room, elevator and the first room, main entrance, and other places set evacuation instructions lighting, illumination of not less than 0.5Lx.
Emergency lighting usually use fear to control or by building devices monitoring system for unified management, fire control room by fire automatically control force on all emergency lighting.
4) fire control system, way of selecting and laying:

Signal transmission lines, power lines, power line. Phone line using the broadcast wire. Transmission line using fireproof trunkings, weak current, suspended ceiling in the downlead, extension used to wear steel SC or flame retardant treatment of hard plastic protect dark laid in otherwise burned body structural layer, and did not declare a protection layer thickness less than 30 mm, from roof junction box and fire-fighting equipment segment wear metal fire (flame retardant) bellows.
9, other:
1) fire hydrant pump, automatic sprinkler pump should be set to automatically detecting device, periodic fire hydrant pump, automatic spray testing live pump, Test, in order to ensure that the fire occurred when the pump is running correctly.
2) automatic fire alarm system in each circuit address coding should be reserved for the General teaching 15 ~ 20% of the allowance.
3) gas meter rooms, boiler rooms and other places gas shut-off valve control, determined by the gas company.
4) system. Includes automatic fire alarm controller, fire linkage console, emergency broadcasting equipment, central computer, CRT monitor, printer, elevator operation monitoring disk and fire private telephone exchange, intercom recording telephone, UPS power supplies are set by the contractor. And is responsible for installation, commissioning.



No comments:

Post a Comment