【 Weak current College 】 Gulf equipment technical characteristics and parameters (7)---Power By 【 China power house network 】

● GST-DY-100-type power supply box
GST-DY-100-power box is a DC24V bulk power output equipment, fire alarm control system that can be used as a coordinated control system of power, as linkage control module and charged device power supply. Power supply unit to the AC 220V as main power, while the built-in DC24V/7Ah sealed lead batteries as backup power supply, switching power supply voltage circuits and maintain electrical floating charge, with output over-current protection, and standby power switch and the perfect preparation of electric power by automatically charging and over-discharge protection. At the same time, the intelligent power supply unit can be kept on the main, electrical and power output status monitoring, master, power failure, fault output, but also has an output voltage, output current display feature to visually observe power box working state.
The main technical indicators are as follows:
◎ Rated output capacity: DC24V, 4A
◎ Using environment: temperature: 0 ° c ~ + 40 ° c relative humidity ≤ 95%, no condensation
¡Ò main power for power: AC 220V, built-in DC24V7Ah sealed lead batteries be electro
◎ Dimensions: 310mm×400mm×115mm
● GST-DY-200-smart power box
GST-DY-200-smart power box is a DC24V bulk power output equipment, fire alarm control system that can be used as a coordinated control system of power, as linkage control module and charged device power supply. Power supply unit to the AC 220V as main power, while the built-in DC24V/24Ah sealed lead batteries as backup power supply, switching power supply voltage circuits and maintain electrical floating charge, with output over-current protection, and standby power switch and perfect automatic charging and prepared by electric over discharge protection. At the same time, the intelligent power supply unit can be kept on the main, electrical and power output status monitoring. When the input voltage is greater than or less than 260V 160V times main power failure; when preparing electrical battery damaged or undervoltage electrical fault when filing; when the output voltage is greater than the 28V or output current greater than 8A times output fault. The power box also has a main electrical voltage, output voltage, output current display feature to visually observe power box working state.
The main technical indicators are as follows:
◎ Rated output capacity: DC24V, 6A
◎ Using environment: temperature: 0 ° c ~ + 40 ° c relative humidity ≤ 95%, no condensation
¡Ò main power for power: AC 220V, built-in DC24V24Ah sealed lead batteries be electro
◎ Dimensions: 500mm×440mm×170mm
● GST-LD-D02-intelligent power-up
GST-LD-D02-intelligent power disk circuit by AC-DC conversion, standby power float control circuit and power control circuit is composed of three parts, specifically for the entire fire control system power supply.
GST-LD-D02-intelligent power up to AC 220V as main power, while the external battery DC24V/24Ah as preparation. Standby power normally accept main power charging, when the site AC power failure, the standby power supply automatically import external supply. Intelligent power supply tray can be on the main electrical faults and alarm output failure, when the input voltage is greater than or less than 160V 260V, reported main power failure; when the output voltage is greater than the 28V or output current greater than 8A, report output. At the same time it also has a battery overcharge and over discharge protection. Power monitor parts for indicating that what is currently being used by all the way to the power supply, AC input voltage and output voltage values, as well as various fault and status display. In a tank fire alarm controller (linkage) as the control core systems, the power-up as a coordinated control system power.
The main technical indicators are as follows:
◎ Output capacity: DC24V, 6A
◎ Using environment: temperature: 0 ° c ~ + 40 ° c humidity: ≤ 95%, no condensation
¡Ò main power for power: AC 220V, built-in DC24V24Ah sealed lead batteries be electro
(VII) fire broadcasting system
• Bus system fire emergency broadcasting system
Fire emergency broadcasting system belongs to the fire alarm control system supporting the use of equipment, through this system you can achieve communication building fire, command related layer evacuation capabilities throughout the fire control system plays an extremely important role.
Bus system fire emergency broadcasting system by the Hudson Bay Company production of fire control centre of the broadcast equipment, with the use of the bus system for fire alarm controller, LD-8305 fire radio module and playback devices. The fire control centre of the broadcast equipment including radio power amplifier, CD recording disc GST-CD type and GST-KZ-deck recording disk, you can set in the Cabinet. Live broadcast using roof and wall-mounted speakers. Use fire radio switch module LD-8305, scene playback device on the bus access controllers, sent by the radio device to the audio broadcast signals, but also through LD-8305 module passive normally open contact (fire broadcasting) and normally closed contact (normal broadcast) added to the playback device, a radio range may be a LD-8305 module to control. The module is equipped with auto-answer feature, when the module actions will generate an alarm signal is fed into the controller generates alerts indicating that normal broadcast and fire broadcasting switch successfully.
Fire emergency broadcasting system playback device can be private or share with the public broadcasting system; when combined with the public broadcasting system, the fire control centre must be fire evacuation level for the speakers and to public broadcasting amplifiers force fire emergency broadcast status while in the fire control centre monitors fire emergency radio amplifiers working state.
Fire broadcasting equipment together with other devices can also be individually assembled in fire control cabinets, equipment power unity by fire control system of power supply.
«More wire fire emergency broadcasting system
Fire emergency broadcasting system belongs to the fire alarm control systemCommission in supporting the use of equipment, through this system you can achieve communication building fire, command related layer evacuation capabilities throughout the fire control system plays an extremely important role.
More wire fire emergency broadcasting system by the Hudson Bay Company production of fire control centre of the broadcast equipment, fire alarm controller, LD-GBFP-100 multiple wire broadcast distribution and live broadcast speaker. The fire control centre of the broadcast equipment including radio power amplifier, CD recording disc GST-CD type and GST-KZ-deck recording disk, you can set in the Cabinet. Live broadcast using roof and wall-mounted speakers. More wire fire broadcasting system's output of broadcasting channels by broadcasting Division to design, each broadcasting a second root partition independent broadcasting channels and live playback devices are connected, the broadcast Division switching control by the fire control centre dedicated multi wire fire broadcast distribution (LD-GBFP-100 type). With this switch, you can complete manually on the broadcasting Division for normal or fire radio switch.
Fire emergency broadcasting system playback device can be private or share with the public broadcasting system; when combined with the public broadcasting system, the fire control centre must be fire evacuation level for the speakers and to public broadcasting amplifiers force fire emergency broadcast status while in the fire control centre monitors fire emergency radio amplifiers working state.
Fire broadcasting equipment together with other devices can also be individually assembled in fire control cabinets, equipment power unity by fire control system of power supply.
(8) fire telephone system
• Bus system fire telephone system
Fire telephone system is a dedicated communication systems for fire, this system can quickly achieve the fire of artificial confirmation, and may hold the fire site and carry out other necessary communications, to direct the fire suppression and recovery work. Telephone system host installation in the control center, the use of embedded installed in the alarm control stringed Cabinet.
The complete bus system fire telephone system consists of a set of fire control centre GST-TS-Z01A-bus system fire phone host and fire alarm controller, on-site LD-8304 module and LD-8312-phone jack and TS-100A fire telephone extension. The system has a design flexible, easy to use and so on.
GST-TS-Z01A-host with recording function, using digital voice memory chips up to record a 30-minute call to fire accident investigation.
LD-8304 module is a direct encoding module, and the fire alarm controller bus connection and need to be connected to the power bus DC24V. To achieve the delivery of telephone voice signal, you need to access the fire phone bus. LD-8304-module has a telephone jack, you can direct telephone extension for bus system.
LD-8312-phone jack and J-SAP-8402 type intelligent coding manual alarm button telephone jack parts are non-coding, direct bus connections with fire telephone constitute non-coded telephone jack, if-module connection with LD-8304, may constitute a coding style phone jack.
Fire telephone system telephone extension can call host without dialing, ringing when the host is the call until the host off-hook or extension to cancel the call; at the same time, the host may call any fixed extension (by fire alarm controller), the extension is ringing when the call until the extension off-hook or cancel the call of fire alarm controller; extension between host allows also can call; telephone jacks can be expanded. Pick a fixed telephone extension or extension plugged LD-8312-Jack and J-SAP-8402-Manual alarm button (including telephone socket) phone jacks are considered extensions caller host. The host calls fixed extension can fire alarm controller starts the appropriate LD-8304 modules allow extension ring. Host and extension, extensions and extension of the call, the call is completed by the host's own control without the need for other controllers.
«More wire fire telephone system
Fire telephone system is a dedicated communication systems for fire, this system can quickly achieve the fire of artificial confirmation, and may hold the fire site and carry out other necessary communications, to direct the fire suppression and recovery work. Telephone system host installation in the control center, the use of embedded installed in the alarm control stringed Cabinet.
Complete wire fire telephone system consists of a set of fire control centre TS-Z02A-multi wire fire phone host and fire alarm controller, LD-8312-phone jack and TS-200A stationary fire telephone extension and TS-200B hand-held fire telephone extension. The system has a design flexible, easy to use and so on.
More wire fire telephone system control core for multiple-line TS-Z02A-fire phone hosts. According to the actual demand, fire phone hosts capacity is not the same. Fire in a multiple-line telephone system, each Department TS-200A type fixed fire Ext. occupy all the way to fire phone hosts, separate two-wire and fire phone hosts connections. LD-8312-fire phone jack can be connected in parallel, parallel, or as many as you like, parallel telephone jack fire phone only occupies one of the host.
Fire telephone system telephone extension can call host without dialing, ringing when the host is the call until the host off-hook or extension to cancel the call; at the same time, the host may call any fixed extension (by fire alarm controller), the extension is ringing when the call until the extension off-hook or cancel the call of fire alarm controller; extension between host allows also can call; telephone jacks can be expanded. Pick a fixed telephone extension or extension plugged LD-8312-type jacks are considered extensions caller host.
More wire fire telephone system host and extension, extensions and extension of the call, the call is completed by the host's own control without the need for other controllers.
(9) gas extinguishing control
● LD-QKP06 type gas fire extinguishing Control Panel
LD-QKP06 gas extinguishing Control Panel is a project of the actual requirements of gas fire extinguishing control interface device, used to drive a gas fire extinguishing system of executive bodies, so as to constitute a complete gas fire control system. This control panel you can directly access fire alarm controller bus, and the company's production of linkage controller or fire alarm controller together with the completion of the gas cylinders, automatic control to control fire extinguishing gas spray.
The control panel can be independent of the linkage controller or fire alarm controller on the connected external device control. The fire alarm controller when an exception occurs, through on-site emergency start/stop-button or the gas fire extinguishing Control Panel on start and stop moving directly to the key realization on gas fire extinguishing equipment of control actions.
LD-QKP06 gas extinguishing Control Panel can be attached spraying led, emergency boot/shutdown action buttons, independent control linkage more wire devices. Extinguishing control panel with external line short circuit and open circuit check alarm function, and have an alternate number line output to ensure that the main gas fire extinguishing equipment maintenance or failure to use an alternate control output reached gas extinguishing purposes.
The main technical indicators are as follows:
◎ Capacity: maximum capacity of control 6 gas fire district (six control unit)
◎ 0s---45s adjustable delay time:
◎ Wire:
A. controller uses two bus connection (polarity signal second bus)
B. steel solenoid valve, pressure switch and spray led multiple wire 2-wire connection
C. emergency boot/shutdown dynamic buttons using multiple wire 3-wire connection
D. xiangqi with sound and light; adopts 2-wire connection
E. exterior with nonpolarized DC24V power
◎ Output: the output tray has 6 points, each group has two DC24V output (main and standby fire)
◎ Using environment: temperature: 0 ° c ~ + 40 ° c relative humidity ≤ 95%, no condensation
◎ Power: DC24V6V (for), you can connect with intelligent power-up or intelligent power box
◎ Monitor power consumption ≤ 10W
◎ Dimensions: 460mm270mm105mm

【 Weak current College 】 fire engineering installation technology gives the low-down-Power By 【 China power house network 】

Technology gives the low-down the records table C2-1 number, project name gives the low-down on the construction unit sub-item project name to give the low-down the feeds low-down: fire engineering installation of universal scope 1 this craft standard applicable to industrial and civil building fire equipment installation engineering. 2 construction preparation 2.1 construction design of fire design drawings, you must have the appropriate design qualification certificate of design unit design. The construction drawings and information will be sent to public security and fire fighting supervisory body audit, approved by the audit. 2.2 engaged in fire-fighting facilities construction units, should have the appropriate qualification, their qualification by the public security fire agencies with the relevant departments to jointly approved and issued a fire protection engineering construction Enterprise qualification certificate. 2.3 construction field of fire safety by the construction of the units responsible. Pre-construction and construction units must be reported to the police and fire agencies, the public security agency issuance of permits for the construction site before construction of fire safety. 2.4 construction units must be in accordance with the approved design drawings, not tampered with. 2.5 installed fire products, mechanical and electrical products and materials to meet the following criteria: version 2.5.1 of the city of fire Eagle, should have a production license issued by the State. Foreign or foreign to local sales of fire protection products, must have a validity period of the sales control certificate in Beijing. Selection to the Tribunal that the products listed in the certificate is in line with the desired product. 2.5.2 fixed fire extinguishing systems and fire-resistant components and refractory coatings should have effective national quality inspection center of inspection reports. 2.5.3 fire electronic products to have a valid national fire electronic products quality inspection report. 2.5.4 selection of high-voltage Cabinet and cage screen must follow the machinery Department and Ministry-approved designated plant production products; import of electrical products must have a verification certificate, they have a certificate that the device has a nameplate. 2.5.5 construction electrical construction-to-use products such as wire and cable, switches, etc., should be consistent with the safety of China electrical Certification Committee, its certification requirements for electrical product safety certification Committee on should a security certification requirements, its electrical product safety certification mark shall carry, and has a certificate that has a nameplate on your device. 2.5.6 selection of various types of steel, shall meet the relevant standards and design requirements, manufacturers to produce material certificates and certificate. 2.5.7 various main accessories, pipes, welding rods, paint, etc., should have the certificate of quality. Selection of the machines must 2.6 meets the technical requirements of the construction site, the use of mandatory testing and non-mandatory testing of the measuring instrument shall be adjusted according to the national measurement Act at the request of management. 2.7 construction management personnel, such as construction, quality inspector, materials such as operationalizing certificates. Special types, such as electricians, welders, etc. should also be done certificates. 2.8 construction should accept firefighting supervisory authority and quality supervision authorities and other superior unit check instructions to ensure the quality of the project. 2.9 construction should be strictly in accordance with the approved design drawings, conscientiously implement the relevant fire design specifications, construction approval standard, construction technology and related Atlas, manufacturer information, and other construction requirements. 2.10 construction records and data collection, arrangement and fill out the form, you should do and engineering, project completion and acceptance of delivery time should be directed to the construction of a complete set of project information, and in accordance with the contract requirements, draw the as-built drawings. 2.11 fire engineering installation and debugging all completed, construction unit should be from a qualified surveyor, then please construction units (supervision), design units for acceptance, acceptance certificate of completion. 2.12 building units or construction unit should be entrusted to qualified building fire facilities detection unit tests and submit the technical test report. 2.13 construction unit should fire supervision agencies submit an application to and acceptance of the relevant information, the public security fire agencies, the fire engineering acceptance inspection issued to fire facilities only allow acceptance certificate, otherwise, the unqualified acceptance or non-acceptance shall be permitted to use. Person who accept to give the low-down the person gives the low-down

【 Weak current College 】 mechanical smoke extraction facilities in fire acceptance of problem---Power By 【 China power house network 】

As China's economic construction fast development, high-rise buildings, underground works in some big cities like mushrooms and prospered. Modern high-rise buildings often makes extensive use of plastic decoration, the chemical fiber rug and furniture with foam padding. In the event of fire, Interior fuel and construction materials, decoration materials, flammable furniture, clothing and other combustible materials, such as in the combustion process produces a large amount of toxic smoke and heat, smoke does great harm to the human body, suffocating, poisoning still to death. According to a recent fire deaths statistics indicate that the fire deaths due to smoke smoked death accounted for about 50% to 70%, and burned to death in the majority of first asphyxia collapsed after burned to death. Construction of smoke control facilities in the fire for the safe evacuation and fire fighting created favorable conditions for, and control the fire from spreading. Therefore, the setting is very important for smoke control facilities. In order to design and install smoke control facilities, play, make sure that the State and people's lives and property. Author mechanical smoke extraction facilities in fire acceptance of several opinions on. For reference purposes only.
First, review the settings part of smoke control facility complies with the specifications
(A) mechanical smoke settings parts. Under the high civil building design fire protection standard section 8.3.1 bis provides for the following positions should set the mechanical pressurization smoke control facilities:
1, do not have conditions of natural smoke exhaust smoke fire stairs, elevator room or room before use;
2. adopt the measures of natural smoke exhaust smoke staircases, its does not have natural smoke conditions before the Chamber;
3, closed asylum bed (room).
(B) mechanical smoke extraction settings parts.
1, according to the design of tall building fire code provisions of section 8.4.1: a class of high-rise buildings and building height exceeding 32m II the following parts of high-rise building, you should set the mechanical smoke extraction facilities:
(1) no direct natural ventilation, and longer than the inner passages or 20m although direct natural ventilation, but longer than the inner passages 60m;
(2) more than 100m2, and often someone stay or fuel more ground and set the windowless room or room with a fixed window;
(3) does not have natural smoke conditions or headroom above the Atrium 12m;
(4) in addition to using window wells, and other fenestration for natural smoke rooms, each room has a total area of more than one room area 200m2 or exceed 50m2, and often someone stay or so of more basement.
2, according to the civil air defense air engineering design fire protection standard law, the following part shall be located mechanical smoke extraction facilities:
(1) building area greater than 50m2, and often someone stay or so in more rooms, lobby and c. "workshop;
(2) total length exceeds 20m evacuation aisle;
(3) film and stage.
3, according to the garage, garage, yard design fire protection standard stipulates: over 2000m2 of underground garage should set mechanical smoke extraction system.
(3) dance installstion smoke, smoke extraction facilities set parts. According to the architectural design fire protection standard article 5.1.1 and tall buildings design fire protection standard of 4.1.5A bis, these parts should be fortified to smoke, smoke extraction facilities:
(1) dance installstion located in multi-story building and including four stories above a windowless room or room-room window, underground rooms, as well as more than 20m and no natural smoke evacuation aisle or directly on the natural ventilation, but longer than 40m evacuation in aisle;
(2) dance installstion located in high-rise building of the first floor, second floor, the third layer, the area over the windowless room 100m2 or supposes a fixed window of the room and over 20m and no natural smoke evacuation aisle or directly on the natural ventilation, but longer than 60m evacuation in aisle;
(3) dance installstion located in high-rise buildings up to and including four stories above a windowless room or room-room window, underground rooms, open the window size is smaller than the room area of more than 2%, and with no natural 20m smoke evacuation aisle or directly on the natural ventilation, but longer than 60m evacuation in the aisle.
2. check the system settings for conformance to specifications
(A) of the pressurization system for smoke: 1, more than 32 storey high-rise building is segmentation settings ventilation system; 2, smoke staircases and combined with former rooms are separately set the air supply system, when you must share a system, whether on the way to the front room with air duct pressure difference set on automatic control device; 3, refuge layer is a separate ventilation system; 4, scissors staircase is set independently for the air duct, with the wind as second staircase; 5 ways to determine if the pressure to meet the requirements.
(B) mechanical smoke extraction system: 1, ground and underground is common exhaust system; and 2 whether the individual settings of the Atrium, the exhaust system; 3, mechanical ventilation and smoke extraction system, air-conditioning system and, when combined, whether or not to take the reliable security measures; 4, aisle and room exhaust system is set separately; 5, each exhaust system with exhaust port number is more than 30; 6, basement room is also equipped with air intake system (air mechanical air or natural) into the air should be not less than 50% of the exhaust gas volume and reasonable airflow should be organized so that the smooth discharge of flue gas.
3. view the fan selection is justified.
(A) the smoke pressurization system air supply available look-up or calculation method to determine when the calculated value and the tall buildings design fire protection standard of table 1, table 8.3.2-8.3.2-2, table 3, table 8.3.2-8.3.2-4 inconsistent, whichever the greater value. Then select according to the air or in axial flow fan and low-pressure centrifugal fan.
(B) mechanical smoke extraction system exhaust fan choice whether: 1, when the burden of an exhaust fan for smoke partition, you should press the smoke partition area per square meter than 60m2/h; 2.When the burden of two or more smoke partition should be maximum preventing smoke partition area per square meter than 120m2/h; 3, the volume is less than 17000m3 Atrium, the exhaust gas volume by volume of 6/h ventilation calculation; the Atrium volume greater than 17000m3, its exhaust volume according to the volume of the 4th/h ventilation; but most small amount should not be less than smoke 102000m3/h. According to the size of the calculated value, you can select the centrifugal fans, axial fans, smoke, or you can choose to bring the power of a dedicated exhaust fan.
4. view the air or exhaust port settings location is appropriate
(A) positive-pressure supply outlet: 1, smoke stairway supply outlet is every two to three-layer settings, former room air is layer sets; 2, each supply outlet area size meets the design requirements.
(B) mechanical exhaust outlet: 1, each smoke partition is at least one smoke exhaust vents; 2, smoke partition from the exhaust port within the furthest point of the horizontal distance is more than 30m; 3, exhaust port is located in the ceiling or wall near the ceiling; 4, each exhaust port area size meets the design requirements.
5. test smoke system feature is complete
(A) positive pressure ventilation system: 1, fan distribution meets the requirements, in the last level distribution box office is set up automatic switching devices; 2, fans in fire control room is one of the Start button, in the event of fire, pressure blowers can be started immediately; 3, supply outlet (except for opening pressure air) is set to manually, and automatic opening device, if there are any smoke detector chain of automatic opening device or fire control centre distance control of opening device; 4, smoke staircases, front room, shared room, fire before the elevator room, closed asylum bed (room) residual pressure value is reached the high civil building design fire protection standard article 8.3.7 bis regulations.
(B) mechanical smoke extraction system: 1, fan distribution meets the requirements, in the last level distribution box office is set up automatic switching devices; 2 whether the exhaust outlet, closed weekdays is set manually and automatic opening device, if there are any smoke detector chain of automatic opening device or fire control centre distance control of opening device; 3, in fire control room if there is a fan of one-to-one manual operation button;; 4, when any of the exhaust vents or exhaust valve is opened, the exhaust fan is able to boot; 5, in the exhaust pipes and exhaust fan room entrance is there when the gas temperature of more than 280 ° c, could itself off smoke fire dampers; 6, same smoke partition settings of exhaust port, can be opened simultaneously all exhaust port.
VI. other issues
1. smoke fan downlead of distribution lines with fire performance requirements;
2. air wind speed is not greater than 7m/s, the exhaust vents should not be greater than the wind speed 10m/s;
3, galvanized metal duct, the wind speed should not exceed 20m/s when using concrete block or asbestos Board other non-metallic materials, duct, the wind speed should not exceed 15m/s.
4, headroom than indoor Atrium 12m, vertical exhaust port is 2 to 3 layers of a smoke exhaust vents or segmentation settings;
5¡ ¢ exhaust fan is set in the exhaust system up to the upper part of the exhaust gas outlet does not use the upper to the lower deck of flue gas duct of the arrangement;
6. pressure blower is set free from building fire blower room, it is best to set on the bottom of the system, and the pressurization system of pipes should not be installed for fire dampers.

【 Weak current College 】 smoke control in high-rise building facilities design and construction analysis of and solutions to common problems

Summary: on the tall buildings of smoke control system design and construction issues analysis and countermeasure
Keywords: tall buildings, natural smoke exhaust system
Usually tall buildings of smoke control facilities include smoke staircase and vestibule, fire the elevator room, combined with front room, enclosed stairway, refuge layer (room), and other places set of smoke, the basement, in the aisle, Atrium, no form or with fixed window room and set the smoke extraction facilities, smoke partition between the vertical wall of smoke. Smoke management facilities is tall buildings to protect life and property safety indispensable fire safety facilities, but as part of the design and construction personnel on smoke control facilities of structure, function, performance, lack of awareness, understanding of national regulatory standards, not often leads to the design, construction, there are some problems, mainly in the following areas:
A, natural smoke extraction facilities up to exhaust purpose
Natural gas is an economical, simple and easy operation, maintenance, management convenience of exhaust smoke, but as part of the works in the design and construction process is not carried out according to specifications, often lead to project completion, natural smoke extraction facilities do not have the effect of its smoke causes mainly has following several aspects:
A is the set of natural smoke exhaust was misaligned window. From natural smoke effect, exhaust window should be as close as possible to the top of the wall, there are a considerable number of natural smoke exhaust window is set in the upper part of the wall, but is lower, from the roof, the greater the distance from the ceiling, is not conducive to natural gas.
Second, natural smoke exhaust window window area does not meet specifications. National standards for the design of tall building fire safety norms on the use of natural smoke exhaust parts of fenestration area shall be clearly defined, but due to some designers do not press specifications carefully calculated, or the fixed window area within the exhaust window area, causing some projects don't exhaust window area to the specification requires that directly affect the smoke effect.
The third is the natural structure of exhaust window. Have made the smoke exhaust window is not open, fixed window, the upper portion of the form to make a fixed window, the window can be opened by the smoke in the lower portion of the window, seriously affect the smoke extraction functionality.
4. installation height high exhaust window missing easy to open the operating organization. According to specification, exhaust window should have opened the device easily, but some of the installation height high, difficult exhaust window are not installed on the negative operating device, fire smoke exhaust window opens.
2. set the mechanical pressurization smoke control equipment parts required to form a top pressure value, mechanical smoke extraction facilities of smoke effect is not evident.
Air and exhaust air, port Yu ya value does not meet the regulatory requirements of the phenomenon is more prevalent in the project, some air, exhaust port speed or even close to zero, this might be caused by more complex, mainly has following several aspects:
1. improper fan selection. According to specification, smoke staircase and vestibule, combined with front room and fire the elevator room of mechanical pressurization air flow, the calculation should be identified, when the calculated values and norms stipulated values do not match, whichever the greater value determines the design directly, according to the specification for a given value determines that often lead to the selection of the blower air flow, pressure is small, can not meet the requirements of the design uses combined ventilation and smoke extraction system, construction was not as designed selection two-speed fan; construction units not complying with the design of the fan model ordering, purchasing power specifications smaller fan, led to a serious shortage of fan.
2. mechanical pressurization system and natural gas facilities in the repeat settings. For building height more than 50 meters of a class of public buildings and buildings of more than 100 meters of residential buildings, in accordance with the requirements of the regulations should set mechanical pressurization system, some projects in this area while using natural gas, resulting in fire, mechanical pressurization system for smoke control window with nature while opening, smoke stairs difficult to form a positive pressure, can not reach the smoke effect.
3, combined with the positive pressure ventilation system was not designed pressure regulation device. According to specification, mechanical pressurization for smoke control staircase and combined with former room, to independently set the air supply system, when you must share a system should be on the way to the front room with air duct pressure difference set on automatic control device. There are many design combined with the positive pressure ventilation system does not have design pressure regulation device, unable to form a staircase of residual pressure is higher than the front room.
4. smoke partition not complying with the specifications set smoke facilities. A considerable part of the project, especially the large shopping centres set up smoke part not specifications set down in the ceiling smoke vertical walls, basement while using architecture beam for smoke, smoke extraction system in the exhaust vent is not according to specification, located in the ceiling or wall near the ceiling, which is located below the beam.
5. air settings do not meet the requirements. Some vertical smoke control system for air fixed louvres-normally open air outlet, outlet sizes basically the same, caused by the layer of air volume and air speed serious imbalances, far away from the fan supply outlet of the air flow is inadequate, even at the end of the diffuser of wind speed, wind rate close to zero.
6, duct shaft construction, air quality is poor. A considerable number of works by ventilation shafts not plastering, plumbing connections are not closed position, normally closed air leakage is not tightly closed, causing very serious air, exhaust air flow of wind speed, the specification requirements, construction unit or even cancel the shaft connection ceiling diffusers for air pipe, use ceiling stuffy air duct space instead of a top, often causing air duct outlet wind speed close to zero.
While some will exhaust system fan exhaust port is set in the Interior, fire smoke from indoor Interior to not only lose the smoke effect, but also may cause the spread of fire.
3. smoke fan of distribution does not conform to specification
One is the fan's power supply to the load level of tall buildings. Some of the power supply line not received since the fire power, but rather add to floor lighting, power distribution box, some design uses single circuit distribution lines, design is not set at the end of the power supply automatic switching device, not a secondary power supply load requirements, exclusive dual-circuit, located at the end of the automatic switching device.
Second, the downlead distributionInstallation of electric lines does not meet the requirements. Some smoke fan distribution line wear PVC plastic pipe, some wear metal tube not brushing fire retardant coating, does not comply with the wearing of fire performance requirements.
4. setting up machinery parts of smoke control facilities specifications set by
1, with podium of smoke control in high-rise building stairwell and front room, fire the elevator room or shared room, when the podium above use can be opened for natural smoke outside Windows, podium section does not have natural smoke condition, its front room or room is not in accordance with the former specifications set positive pressure ventilation system.
2. no more than 20 meters of natural gas in the aisle, some designers who connected smoke before room stairs have natural smoke, think it has the natural smoke conditions, according to the specifications set mechanical smoke extraction facilities.
5. strategies
In view of the above problems, I think the Fire Department should be from the following aspects to strengthen building smoke facilities design and construction supervision:
1, should strengthen smoke facilities design and construction of business mentoring and training. Around the Fire Department for fire alarm and General Electric, fixed (automatic) fire-fighting facilities design and construction of business mentoring and training attaches great importance to the training process often overlooked smoke facilities design and construction professionals.
2. should implement smoke facilities construction by fire facilities construction unit of the system. Smoke management facilities is building automatic fire-fighting facilities, an important part, in accordance with the provisions of its construction by fire facilities construction units, but there are many items of smoke control facilities construction by air conditioning unit is responsible for the installation of construction professionals.
3, fire supervision departments of the examination staff at construction drawing examination, should focus on smoke control facilities design review should focus on the natural smoke exhaust window settings, window size, mechanical smoke extraction facilities set parts, fan selection, the air exhaust port settings, smoke partition until the review, while in construction should be strengthened to smoke the supervision and management of facilities, smoke control facilities as construction supervision and inspection of important content, make timely detection of problems, guidance, supervision and construction units for rectification.

【 Weak current College 】 automatic fire alarm system and linkage control device distribution requirements and routing features

First, the system power supply

1, automatic fire alarm system of main power to the load according to the first or second class. Because the installation of automatic fire alarm system places are important buildings or places, automatic fire alarm system such as timely, correct alarm, you can make people's lives and property protected or less affected by losses. Therefore requires its main power of high reliability, there are two or more power, in fire control rooms for automatic switching. At the same time also have DC standby power supply, to ensure its effective and reliable power supply. DC standby power use fire alarm controller dedicated battery or battery Central setting. When the DC standby power use of fire-fighting system centrally set of batteries, the fire alarm controller should be using a separate power supply circuit, and should ensure that the fire-fighting system at maximum load condition does not affect the normal work of alarm controller.

2. automatic fire alarm system of main and backup power supply, its size should be consistent with the requirements of the existing relevant national standards, in the standby power for charging and discharging 3 times, the main and standby power supply should be automatically converted. Using the main power and standby power supply, automatic fire alarm system control function and linkage function should be fine. Fire alarm controller power to automatically convert and backup power supply automatic charger, the standby power to undervoltage and overvoltage alarm function.

3. automatic fire alarm system with a CRT monitor, computer host, fire communications equipment, emergency broadcasting system is its main power use UPS power, this requirement is to prevent a sudden power loss resulted above device does not work properly.

4. disaster alarm system main power switch should not be a residual current protection switch. The reason for this is that the leakage current and ensure that device reliability to compare, the latter as the first. Controller's main power inlet, should direct and fire power connections, is strictly prohibited to use the power plug. The main power supply should be clearly marked.

5. fire-fighting appliances should use separate power supply circuit, and when the fire cut off production, consumption of electricity, should still be able to ensure the fire power, its power distribution equipment should be clearly marked. Its distribution lines and control loop should press the fire district.

6, high-rise buildings in fire control, fire pumps, fire service lift, smoke exhaust fan, power supply, should be the last level distribution box office set up automatic switching device.

7, a high-rise building electric power generation equipment, should be set to automatically start the installation, and in the 30s in the power supply. The second class of high-rise building electric power generation equipment, when the use of automatic startup difficulties, you can manually start the installation.

2. grounding

1, automatic fire alarm system grounding resistance value should meet the following requirements: the use of dedicated grounding, grounding resistance value should not be greater than 4 Ω, this value is the grounding requirements relating to your computer for unanimous. Use of common grounding equipment, grounding resistance value should not be greater than 1 Ω, and national electrical grounding specification for lightning protection and earthing system common grounding equipment, grounding resistance values called consistent. For grounding device is private or shared, to create a new project, generally try to use as well, where it is not possible to reach a private sharing can also be used.

2. automatic fire alarm system should be set dedicated grounding line and fire control rooms set up a dedicated add-floor. Dedicated grounding line should meet fire control rooms dedicated to grounding on the floor. Dedicated grounding link should use copper conductor insulated conductors, their core cross section area should not be less than 25 mm square. Dedicated grounding link should wear rigid plastic pipe laying to the grounding. Provides automatic fire alarm system should be in the fire control rooms set up dedicated next floor is necessary, this will help to ensure the system is working properly. Dedicated grounding link is received from fire control room floor to grounding that paragraph, if dedicated grounding refers to the floor from the received outside this period of grounding line. Computer and electronic equipment grounding line of general introduction paragraph cannot take flat or bare copper wire, etc., mainly in order separated with thunder, there is a need to avoid direct contact with the insulation, impact fire electronic equipment grounding effect. To do this requires dedicated grounding link should use copper conductor insulated conductors, their core area should not be less than 25 mm square, this requirement is a reference to the "IEC" standard, which is primarily intended to improve the reliability and minimize the conductor resistance.

3. use of common grounding device, generally add to the bottom floor in the basement of the reinforced concrete pile foundation for shared add-in location and not from fire control indoor pole directly welded wire leads, as private meet the floor.

4. work grounding line and protection earthing connection, you must separate the protection of the grounding conductor must not use the metal hose. Work grounding line should be used copper conductor insulated conductors or cables, not to use galvanized flat iron or metal hose.

5. fire control room to the next floor fire electronic devices dedicated grounding line should use copper conductor insulated conductors, their core wire cross section area should not be less than 4 mm square.

6, fire electronic equipment where the AC power supply, equipment, metal shell and metal brackets, etc. should be made to protect the Earth, Earth wire with electric protection earthing (PE) route. The power supply line should adopt single-phase and three-wire power supply system.

7. fire control room to the grounding of grounding line, through walls, into the pipe or other sturdy protective tube.

III. wiring

1, automatic fire alarm system cabling, should be consistent with existing national standards for the electrical installation work construction and acceptance. Wiring, according to the existing national standards of the automatic fire alarm system design code of conductor types, voltage level. Automatic fire alarm system of transmission lines and power control circuit below 50V, should adopt the voltage level not lower than AC 250V insulated conductors of copper or copper cable. Using AC power supply 220/380V or control lineShould be not less than the AC voltage 500V for copper conductor insulated conductors or cables with copper conductor.

2. automatic fire alarm system of transmission line stringing catheter and low-voltage power distribution systems for threading conduit, should adopt the metal pipe, flame treatment of hard plastic or closed several trunking etc., laying a downlead or concealed. When using rigid plastic tube, the application of the flame retardant, its oxygen index requires not less than 30, such as wiring trunking, trunking using closed fire safety requirements. If using ordinary trunking, trunking cable for trunk system, this cable use fire-type. When using Express installation, you should adopt the metal pipe or trunkings protection and should be a metal pipe or trunkings on fire protection measures. Adopted by retarding cable can not wear metal pipe protection, but should be laying in cable shaft or ceiling with fire protection measures within closed Groove.

3, fire control, communications, and alert line and automatic fire alarm system of transmission line, more important, so this part of the thread a catheter choice more demanding, concealed is allowed to use retardant rigid plastic, other cases only using a metal pipe or trunkings. Fire control, communications, and alert line of catheter, General requirements for laying in non-combustion of structural layer, its thickness should not be less than 30 mm, for a pipeline in the concrete can afford to protection role in preventing fires and fire control, communications, and alert line break, so that the fire-fighting work can be done, resulting in greater economic losses. When using the downlead should be using a metal pipe or trunkings protection and should be a metal pipe or take fire on trunkings. From the mesh line, the main fire prevention measures are in metal tubes, trunkings surface with fire retardant paint.

4. automatic fire alarm system cable shaft, and electricity, lighting, low-voltage distribution lines and cable shaft set. If unconditional must be combined, the two cable should be arranged either side of the shaft. Main purpose is to prevent the strong electricity system on the current system of automatic fire alarm equipment. Should not be automatic fire alarm system of cables and HV power cables on the same vertical laying.

5. fire detectors of transmission line, to select a different color of insulated wires or cables. Cathode "+" line should be red, anode "-" line should be blue. The same project in the same color you should use wires, terminals should have a label. Primarily for ease of wiring and servicing. Practice, some manufacturers of auto alarm system transfer bus no longer divided into polarity, this construction is convenient, but transfer bus and 24 v power supply cable and chain equipment line or difference between the colors, will bring to the construction and commissioning is very convenient.

6, terminal box on terminations should select crimping or Tin solder point Terminal Board, its terminals should have the appropriate label. At present construction crimp technology has been widely adopted, the press can improve the reliability of operation.

7. the different systems and different voltage level, different current categories of line, and should not be worn in the same tubes or Groove within the same slot.

8, automatic fire alarm system, conductors with each circuit conductors 500V insulation resistance measurement of a megohmmeter, on his insulation resistance value should not be less than 20 M Ω. This is according to the current standard GB4717 on controller insulation requirements accordingly.

9, introducing controller cable or wire, should meet the following requirements: wiring should be neat, avoiding overlapping, and should be fixed firmly; cable and equipped to the end of the wire should be marked with the numbers, and in line with the drawing, writing clearly not fade; Terminal Board of each terminal, the terminal may not exceed 2 root; cable cores and conductors, should have not less than the margin 20cm; wire strands should be binding; wire inlet thread after plugging in the service should be carried out.

10, fire hydrant pump, spray pumps and other wiring: water pump motor power distribution lines often use flame-retardant cable wear metal tube and placed in the non-burning body structure, or use a fire-resistant cable with fireproof cable tray, or choose mineral insulated cable. Pumping supply General direct from high-rise building substation; when the substation and pump house nearby and belong to the same fire partitions, use fire-resistant cables or refractory bus along fire-type cable bridge downlead; when the substation and pumping distance and across the different fire partitions, you can use mineral insulated cable.

11, smoke control equipment wiring: smoke control equipment distribution lines, use downlead crosslinked fire-or low-voltage cables, mineral insulated cable may be concealed when General fire-resistant cable. Smoke control equipment of linkage and control line, the use of fire-resistant cable. Smoke control equipment for line in laying length should be as short as possible, avoid passing through different fire partitions.

12, fire shutter wiring: fire shutter power usually cited with dual power switch floor distribution box, fire shutter dedicated distribution box with radial or ring-type power supply to the control box. When fire shutter level distribution line is long, the use of fire-resistant cable and ceiling using fireproof Cable Tray downlead.

13, fire elevator wiring: fire lift by building the underlying substation laying two road green power distribution to the top of the elevator machine room, because lines are long and routing is complex, fire lift power distribution lines should be fire-resistant cable; when there are special requirements for reliability, two-channel distribution line all the way in the use of mineral insulated cable.

14, fire emergency lighting wiring: generally use flame retardant wire wear metal tube concealed within the structure of the inflammable and protective layer thickness (30mm, decoration engineering, emergency lighting line only within the downlead suspended ceiling, you should use heat-resistant type or refractory-wire and fire-resistant wiring into account.

15, other fire equipment wiring: fire incidents in broadcasting, fire telephone, fire alarm and other equipment for electrical wiring, when the conditions allow to give priority to the use of flame retardant wire wear protective tube concealed; when using MingPacking line, the corresponding lines do fire-resistive dealing or take into account the aforementioned measures heat-resistant wires.

IV. concluding remarks

From the above analysis, we found the automatic fire alarm system on power and cabling requirements than conventional lighting, power and other system requirements are higher, this is the automatic fire alarm system and joint facilities of the importance in modern architecture, design, construction must pay great attention to it and not for any reason without reducing the design standards, nor allow shoddy workmanship. The only way to effective automatic fire alarm system in modern architecture.


Reference documents:
The automatic fire alarm system design code (GB50166-98)
The automatic fire alarm system construction acceptance (GB50166-92)
The tall buildings design fire protection standard (GB50045-95) 2001 revision Board
The architectural design fire protection standard (GBJ16-87) 2001 revision Board

【 Weak current College 】 electrical fire detection conditions, means and content

First, the basic electrical fire detection conditions

1, should be in the electrical installation and wiring with 1n above-load operation, on entering the heat-stable State for detection and measurement.

2. should the client side for technicians on site support.

Second, the main electrical fire detection tools

The use of modern high-tech equipment, such as infrared thermometer temperature measurement, infrared TV scan, infrared camera shoot hot spectrogram and the use of ultrasound detectors measuring abnormal temperature, spark discharge and other phenomena and use conventional electric instruments, instruments such as voltmeters, ammeters, electroscope, grounding resistance tester, TRMS ampere meter, etc, on the operation of the electrical facilities of various operating parameters for measurement and use of Visual methods, control the relevant technical specifications, to run in high-voltage electrical equipment installation, use, maintenance, and maintenance of electric fire detection.

3. check (logging)

1, the transformer room

① Visual inspection of the set transformer room location, fireproof grade and hole sealing; transformer set, Visual quality, components, integrity and fire prevention measures; high-voltage cable (wire) installation, etc.

② with infrared series instruments detect the level transformer and cable (wire) contact temperature and beat the heat map.

2, high (low) voltage distribution equipment

① Visual inspection, high (low) pressure distribution equipment settings, installation quality, inside wiring, high (low) voltage cable (wire) connector, complete grounding, accessories and fire prevention measures, etc.

② with conventional Instrumentation (or read) the line voltage (flow) value, N lines of unbalanced current values, there is no exception PE line current and resistance values, etc.

Û infrared series instruments measuring wire and connection points, switch contact temperature and beat the heat map.

3. low-voltage power distribution box (spare)

① Visual inspection distribution box (spare) settings, material quality, installation quality, inside wiring, wiring terminal connection, Earth and fire prevention measures, etc.

② with conventional instruments measuring load current value, N line current value and there are no exceptional PE line.

⑶ infrared series instruments measuring box (spare) in the Terminal, the circuit breaker contact temperature and beat the heat map; the use of ultrasonic detector measurement has no spark discharge phenomena.

4. laying low-voltage distribution lines

Check the different places of power concealed, downlead, direct deposit and wear protection pipe line in the installation of electric fire hazard.

5, electrical lighting

Check the different places with electricity, a variety of lighting equipment in the installation of electric fire hazard.

6, switch, socket

Check in different places of installation of electricity, use of switches, outlets, electrical fire hazard exists.

Fire facilities detection content

First, the automatic fire alarm system

1. detection of automatic fire alarm system wiring insulation resistance, resistance, system grounding, pipeline installation and its protection status;

2. detection of fire detectors and alarm button settings, installation quality, protection RADIUS and surrounding Occluder distance, etc., and by 30 ~ 50% proportional sampling its alarm function;

3. detection of fire alarm controller installation quality, inside wiring, protection, earthing and standby power settings, the settings and transformation capabilities, and controller functions test;

4. detection of fire-fighting equipment control cabinet installation quality, inside wiring, hand, automatic control and the Panel accepted firefighting equipment signal feedback function;

5. detect elevator landing capabilities, fire elevators feature, cut off the non-fire-power functions and burning layer light display;

6. detection of fire control room, the fire protection equipment and fire hydrant button Office communication;

7, testing fire emergency broadcasting of audio features, manually selected layers and automatically broadcast, remote controlled opening and forcibly switches, and other functions;

8. detecting fire control room set location and clearly marked, indoor fire damper and independent pipeline set, double-circuit power settings and switching;

9, detection of fire emergency lighting and evacuation signs set, illumination, conversion time and graphic symbols;

Second, the fire service
1. check the nature of the fire water sources, the number of pipes and the diameter of the fire pool settings;

2. check the fire water tank volume, water level indicator and water facilities, ensure fire water and frost protection measures;

3. check the settings of the fire water tank, capacity, antifreeze, water and the State of the check valve;

4. detection of various fire pump performance, pipes, hand control, start time, and reserve and standby pump and power conversion functions, etc.;

5. detection combined with the pump set, signs and conveying fire-fighting water features, etc.;

3, indoor hydrant system
1. check the indoor hydrant installation, Assembly, specifications and spacing, etc.;

2. test the settings, the roof of a fire hydrant frozen Chan and enrich the water column length measures, etc.

3. check the settings of the indoor hydrant pipeline, pipe diameter, colors, ensure fire water and connect shapes;

4. detection of the first floor indoor hydrant and the most negative point of static and dynamic pressure and enrichment of the water column length;

5. check the manually restart the pump button's settings and functions;

4. automatic water spray (fog) fire control system
1. check the network install, connect, set the quantity and at the end of the nozzleEnd pipe diameter, etc.;

2. check the flow indicator and signal valve installation and function;

3. detection alarm valve group status of the installation, valve, various components and their functions;

4, detection spray head installed, appearance, protection and conservation area and the distance with nearby obstructions;

5. alarm function test valve sets;

6. automatic spray water (fog) system for functional test;

Fifth, smoke and air conditioning system
1. check the positive pressure air supply systems wind pipe, fans, air condition and measuring its set speed and value the positive pressure ventilation;

2. detection of smoke exhaust system fans, air, fire, air, and standby power settings and functions;

3. check the ventilation and air-conditioning system of the pipeline and fire damper setting conditions;

4. on the various systems for manual, automatic and linkage function test;

Six, fire doors, fire shutter and smoke vertical wall

1. on its appearance, installation, drive mechanism and action programs and manual and linkage function for detection;

7. gas fire extinguishing system

1. check the gas fire extinguishing system storage device between a bottle, components, extinguishing pipes and nozzles and protection zones set up and installation conditions;
2. gas extinguishing system simulation for the linkage experiment, view to the sound of the alarm after glow, procedures, and view the cut scene of power, auto-start, delay startup volume, fire valves and blower, injection process, gas emissions indicator, actions properly.

【 Weak current college 】 building fire facilities of content

First, the automatic fire alarm system
1. detection of automatic fire alarm system wiring insulation resistance, resistance, system grounding, pipeline installation and its protection status;
2. detection of fire detectors and alarm button settings, installation quality, protection RADIUS and surrounding Occluder distance, etc., and by 30 ~ 50% proportional sampling its alarm function;
3. detection of fire alarm controller installation quality, inside wiring, protection, earthing and standby power settings, the settings and transformation capabilities, and controller functions test;
4. detection of fire-fighting equipment control cabinet installation quality, inside wiring, hand, automatic control and the Panel accepted firefighting equipment signal feedback function;
5. detect elevator landing capabilities, fire elevators feature, cut off the non-fire-power functions and burning layer light display;
6. detection of fire control room, the fire protection equipment and fire hydrant button Office communication;
7, testing fire emergency broadcasting of audio features, manually selected layers and automatically broadcast, remote controlled opening and forcibly switches, and other functions;
8. detecting fire control room set location and clearly marked, indoor fire damper and independent pipeline set, double-circuit power settings and switching;
9, detection of fire emergency lighting and evacuation signs set, illumination, conversion time and graphic symbols;

Second, the fire service
1. check the nature of the fire water sources, the number of pipes and the diameter of the fire pool settings;
2. check the fire water tank volume, water level indicator and water facilities, ensure fire water and frost protection measures;
3. check the settings of the fire water tank, capacity, antifreeze, water and the State of the check valve;
4. detection of various fire pump performance, pipes, hand control, start time, and reserve and standby pump and power conversion functions, etc.;
5. detection combined with the pump set, signs and conveying fire-fighting water features, etc.;

3, indoor hydrant system
1. check the indoor hydrant installation, Assembly, specifications and spacing, etc.;
2. test the settings, the roof of a fire hydrant frozen Chan and enrich the water column length measures, etc.
3. check the settings of the indoor hydrant pipeline, pipe diameter, colors, ensure fire water and connect shapes;
4. detection of the first floor indoor hydrant and the most negative point of static and dynamic pressure and enrichment of the water column length;
5. check the manually restart the pump button's settings and functions;

4. automatic water spray (fog) fire control system
1. check the network install, connect, set the number to the end of the nozzle and pipe diameter, etc.;
2. check the flow indicator and signal valve installation and function;
3. detection alarm valve group status of the installation, valve, various components and their functions;
4, detection spray head installed, appearance, protection and conservation area and the distance with nearby obstructions;
5. alarm function test valve sets;
6. automatic spray water (fog) system for functional test;

Fifth, smoke and air conditioning system
1. check the positive pressure air supply systems wind pipe, fans, air condition and measuring its set speed and value the positive pressure ventilation;
2. detection of smoke exhaust system fans, air, fire, air, and standby power settings and functions;
3. check the ventilation and air-conditioning system of the pipeline and fire damper setting conditions;
4. on the various systems for manual, automatic and linkage function test;

Six, fire doors, fire shutter and smoke vertical wall

1. on its appearance, installation, drive mechanism and action programs and manual and linkage function for detection;

7. gas fire extinguishing system
1. check the gas fire extinguishing system storage device between a bottle, components, extinguishing pipes and nozzles and protection zones set up and installation conditions;
2. gas extinguishing system simulation for the linkage experiment, view to the sound of the alarm after glow, procedures, and view the cut scene of power, auto-start, delay startup volume, fire valves and blower, injection process, gas emissions indicator, actions properly.

Electrical fire detection conditions, methods and content

First, the basic electrical fire detection conditions
1, should be in the electrical installation and wiring by 1h above-load operation, on entering the heat-stable State for detection and measurement.
2. should the client side for technicians on site support.

Second, the main electrical fire detection tools
The use of modern high-tech equipment, such as infrared thermometer temperature measurement, infrared TV scan, infrared camera shoot hot spectrogram and the use of ultrasound detectors measuring abnormal temperature, spark discharge and other phenomena and use conventional electric instruments, instruments such as voltmeters, ammeters, electroscope, grounding resistance tester, TRMS ampere meter, etc, on the operation of the electrical facilities of various operating parameters for measurement and use of Visual methods, control the relevant technical specifications, to run in high-voltage electrical equipment installation, use, maintenance, and maintenance of electric fire detection.

3. check (logging)
1, the transformer room
① Visual inspection of the set transformer room location, fireproof grade and hole sealing; transformer set, Visual quality, components, integrity and fire prevention measures; high-voltage cable (wire) installation, etc.
② with infrared thermography transformer windings and high-low cable (wire) contact temperature and beat the heat map.
2, high (low) voltage distribution equipment
① Visual inspection, high (low) pressure distribution equipment settings, installation quality, inside wiring, high (low) voltage cable (wire) connector, complete grounding, accessories and fire prevention measures, etc.
② with conventional instruments to measure each phase line voltage (flow) value, N lines of unbalanced current value, PEThere are no abnormal current line and the grounding resistance values, etc.
Û infrared series instruments measuring wire and connection points, switch contact temperature and beat the heat map.
3. low-voltage power distribution box (spare)
① Visual inspection distribution box (spare) settings, material quality, installation quality, inside wiring, wiring terminal connection, Earth and fire prevention measures, etc.
② with conventional instruments measuring load current value, N line current value and there are no exceptional PE line.
Û infrared series instruments measuring box (spare) in the Terminal, the circuit breaker contact temperature and beat the heat map; the use of ultrasonic detector measurement has no spark discharge phenomena.
4. laying low-voltage distribution lines
Check the different places of power concealed, downlead, direct deposit and wear protection pipe line in the installation of electric fire hazard. 5, electrical lighting
Check the different places with electricity, a variety of lighting equipment in the installation of electric fire hazard.
6, switch, socket
Check in different places of installation of electricity, use of switches, outlets, electrical fire hazard exists.

Fire facilities maintenance content
This Center is the responsibility of running through the repair, maintenance of automatic fire alarm, sprinkler, fire hydrant, fire shutter, gas fire extinguishing systems, so that it is in a good and effective State. In peacetime to play the role of prevention, alarm, fire, timely alerts, cut off the power to isolate the source of fire, evacuation notices, fight fires, resolve customer concerns

Fire training

1. fire-fighting equipment in use such as: Manual alarm button, fire extinguishers, fire hydrant.
2. be familiar with to understand the composition of the fire-fighting system, function and role.
3, to be trained in understanding and mastering the fire alarm equipment operation and use

Fire protection engineering

Affordable automatic fire alarm systems, sprinkler systems, fire hydrant system, public broadcasting system, gas fire extinguisher system, safety engineering and fire protection engineering installation and construction.

Fire detector maintenance cleaning
Fire detector cleaning using the national key scientific research departments in the development of domestic and foreign latest technology and equipment, a good humidity and temperature control and measures against static electricity, modern cleaning technology, advanced cleaning equipment. Cleaning process using high-purity water as the medium, the ultrasonic cleaning process, closed-cycle system almost no pollution to the environment, while at the same time introduce and develop each kind of detector detection instruments, to ensure the quality of the detector after cleaning up the State page〈 GB50166 — 74G > standards.