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06/21

Manufacturer Introduction and Installation Requirements for Siemens FS720 Fire Detectors

In fire engineering construction, do you know the installation requirements for fire detectors? Below, the Siemens FS720 series manufacturer will specifically explain to you. 　　I. Point-type Smoke and Heat Fire Detectors 　　1. The horizontal distance from the detector to the wall or beam edge should not be less than 0.5m. 　　2. There should be no obstructions within a horizontal distance of 0.5m around the detector. 　　3. The horizontal distance from the detector to the nearest edge of the air conditioning supply air outlet should not be less than 1.5m; to the multi-hole supply air ceiling hole, it should not be less than 0.5m. 　　4. When installing detectors on the ceiling of internal walkways with a width of less than 3m, they should be installed in the middle. The installation spacing of point-type temperature fire detectors should not exceed 10m; the installation spacing of point-type smoke fire detectors should not exceed 15m. The distance from the detector to the end wall should not be greater than half of the installation spacing. 　　5. Detectors should be installed horizontally. If inclined installation is necessary, the inclination angle should not exceed 45°. 　　II. Linear Infrared Beam Smoke Fire Detection 　　1. When the height of the detection area is not greater than 20m, the vertical distance from the beam axis to the ceiling should be 0.3~1.0m; when the height of the detection area is greater than 20m, the vertical distance from the beam axis to the ground (floor) of the detection area should not exceed 20m. 　　2. The length of the detection area between the transmitter and receiver should not exceed 100m. 　　3. The horizontal distance between the beam axes of adjacent pairs of detectors should not exceed 14m. The horizontal distance from the detector beam axis to the side wall should not exceed 7m and should not be less than 0.5m.

06/20

Introduction to Fire Alarm System: Common Faults and Solutions for Temperature Sensing Cables

Temperature sensing cables, as common linear temperature sensing fire detectors in fire alarm systems, inevitably encounter problems during use. So why do problems occur and how can they be resolved? Below, the fire alarm system manufacturer will explain to you. 　　Common Fault Handling: 　　1. When there is a fault in the detector, you can check the corresponding parts based on the display status of the LED indicator on the signal processing unit, and take appropriate measures. First, confirm whether it is a problem with the temperature sensing cable itself, or it may also be an issue with the input module connected to the temperature sensing cable. 　　2. When there is a joint in the detector, a temperature sensing cable junction box must be used, and the wiring must be installed as required to ensure the stable operation of the detector. This can prevent or reduce the occurrence of open circuit or short circuit in the temperature sensing cable. 　　3. For detectors with occasional false alarms or false fault alarms, records should be kept, and the following aspects should be investigated to identify and eliminate the faults: 　　- Check whether the signal processing unit, temperature sensing cable junction box, and terminal unit are well sealed. 　　- Check for any damage to the sheath of the temperature sensing cable. 　　- Check whether the terminal connections of the signal processing unit, temperature sensing cable junction box, and terminal unit are secure and reliable. The continuity of the temperature sensing cable can be measured with a multimeter. 　　4. If the detector fault cannot be eliminated, please contact us promptly. 　　Previous: Manufacturer's Requirements for Installation of Siemens FS720 Fire Detectors 　　Next: Main Components of Siemens Electrical Fire Manufacturer's Fire Protection System

06/19

Manufacturer Introduction to Fire Alarm System Main Components by Siemens Electrical Fire

Fire gas extinguishing systems generally consist of fire extinguishing agent storage bottle groups, liquid flow check valves, gas flow check valves, pressure switches, selector valves, valve driving devices, nozzles, manifold pipes, release pipe networks, and fire alarm extinguishing controllers. Below, Siemens electrical fire manufacturers will specifically discuss the main components of fire protection systems. 　　- Network-free (prefabricated) automatic fire extinguishing device is a cabinet-type fire extinguishing device that integrates fire extinguishing agent storage container components, pipelines, nozzles, valve driving devices, fire detection components, controllers, etc., capable of automatically detecting and implementing fire extinguishing. 　　- The main components of the cabinet-type low-pressure CO2 automatic fire extinguishing system include fire extinguishing agent storage device (including refrigeration unit, liquid level gauge, pressure indicator, safety relief valve, filling valve, balance valve, etc.), main valve, selector valve, maintenance valve, mechanical emergency start device, diaphragm safety relief valve, nozzle, pipeline, and pipeline accessories. 　　- The low-pressure CO2 automatic fire extinguishing system consists of fire extinguishing agent storage device (including refrigeration unit, liquid level gauge, pressure indicator, safety relief valve, filling valve, balance valve, etc.), device control cabinet, main valve, selector valve, maintenance valve, mechanical emergency start device, safety relief valve, nozzle, pipeline, and pipeline accessories. 　　Main Components of Fire Protection Systems: 　　1. Fire Extinguishing Agent Storage Container: 　　The fire extinguishing agent storage container is always under pressure and is one of the main components of the gas fire extinguishing system. It has a significant impact on whether the system can work normally. The fire extinguishing agent storage container not only stores the fire extinguishing agent but also serves as the power source for the system, providing sufficient pressure for the system to work properly. 　　2. Container Valve: 　　The container valve refers to the control valve installed at the outlet of the fire extinguishing agent storage container. Its function is to seal the fire extinguishing agent during normal times and automatically or manually open to release the fire extinguishing agent during a fire. 　　3. Solenoid Bottle Head Valve: 　　This valve is installed on the starting cylinder to seal the starting gas inside the cylinder. In the event of a fire, the controller sends out a fire extinguishing command, opens the solenoid valve, releases the starting gas, and opens the container valve and the corresponding selector valve on the fire extinguishing agent storage container. 　　4. Selector Valve: 　　The selector valve is a valve used in the combination distribution system to control the release of the fire extinguishing agent to the fire protection area. The selector valve is normally closed, and it can be pneumatically or electrically actuated. Whether it is an electric or pneumatic selector valve, it should have a manual operating mechanism so that the valve can still be opened in case of automatic failure. This selector valve is a pneumatic quick-opening valve, which works by controlling gas to push the drive cylinder piston, driving the crankshaft to rotate, and opening the main valve under the action of the fire extinguishing agent pressure, releasing the fire extinguishing agent. In emergencies, the selector valve can be directly operated by hand to release the fire extinguishing agent. 　　5. Check Valve: 　　Check valves are used to control the flow direction of the medium and are divided into liquid flow check valves and gas flow check valves. Liquid flow check valves prevent the fire extinguishing agent from flowing back to the empty bottle or leaking from the disconnected bottle interface. Gas flow check valves are used to control the starting gas to open the corresponding valve. 　　Previous: Introduction to Fire Alarm System: Common Faults and Solutions for Temperature Sensing Cables 　　Next: Advantages of Intelligent Background Music Systems

06/18

Advantages of Smart Background Music Systems

A smart background music system, as the name suggests, integrates music into the home environment, allowing every corner of the house to be filled with wonderful melodies. 　　If we only consider its definition, a smart background music system is just a device for playing music. Phones, MP3 players, computers... they can all play music, and its advantages are not particularly outstanding, making it difficult to convince people. 　　However, as a smart home product, it offers not only multiple functions but also meets various scene requirements, making it very worthy of study. 　　The smart background music system is flat and tablet-shaped, installed on the walls of homes without occupying any space. It blends in with various switches and is inconspicuous, easily overlooked for its powerful capabilities; the matching speakers can be completely hidden in the ceiling, emitting music from all directions, making it difficult to pinpoint the source of the sound without careful observation. 　　With an unremarkable appearance, it lurks in the corners of the home, heard but not seen. If viewed only from the perspective of background music, it may seem ordinary, but in terms of "intelligence," it is extraordinary! 　　Embracing intelligence with Tmall Genie, the smart background music system undergoes a comprehensive upgrade, with various types of hosts available, both wired and wireless; there are atmospheric and majestic tablet-style hosts, as well as compact and exquisite 86-type hosts; there are also KTV-style intelligent hosts, available in desktop or wired versions. It caters to various needs and households, whether you are in a new house or an existing one, you can find the smart background music host you need. 　　1. Multi-functional 　　The smart background music system can not only play background music but also serves as an intelligent home control system. It can also function as a home theater, and the detachable host can even be used for karaoke sessions at home. 　　Background Music 　　With a vast library of background music and HiFi sound quality, it makes you feel like you're on the scene. AI voice control allows you to control the playback of music and various audio resources. Whether you're in the kitchen, bathroom, or bedroom, doing chores or bathing, you can enjoy music, creating a pleasant atmosphere and a relaxed home environment. 　　Previous: Introduction to Fire Alarm System: Installation and Interlocking Debugging 　　Next: Introduction to the Advantages of Smart Background Music Systems

06/17

Installation and Interlocking Debugging of Fire Alarm Systems

With the accelerating pace of urbanization and the rapid development of modern society and economy, the increasing demand for housing construction by the population has made ensuring the safety of lives and property of residents a top priority. Therefore, fire safety is a very important issue that needs to be emphasized in every building. The safety, stability, and adequacy of the power supply system for fire-fighting electrical equipment are directly related to whether fire-fighting equipment can be used in a timely and effective manner. This power supply system must be carefully studied and debugged in the line. The installation of fire-fighting electrical equipment is of great significance to the electrical equipment system, as it can effectively guarantee the safety performance and reliability of the electrical equipment system. Installing the power supply system for fire-fighting equipment is a very important task, so the installation personnel and later debugging personnel must pay high attention to this project. Before carrying out the installation and debugging work, rigorous technical exchanges must be conducted, and the construction plan must be continuously reviewed, improved, and revised. The installation and debugging of the power supply system for fire-fighting electrical equipment should be carried out under the supervision of highly knowledgeable and professional technical personnel. This can not only reduce the occurrence of safety accidents but also ensure the full protection of the working performance of various fire-fighting electrical equipment, thereby efficiently guaranteeing the safety of residents' lives and property in the event of a fire.

06/14

Introduction to Siemens Fire Alarm System: Principle of Temperature Sensor Detectors

The principle of operation of temperature sensor detectors mainly relies on the use of thermosensitive components to detect fires. In the initial stages of a fire, large amounts of smoke are generated, and materials release significant amounts of heat during combustion, causing a rapid increase in ambient temperature. The thermosensitive components in the detector undergo physical changes, converting temperature signals into electrical signals, which are then processed for alarm purposes. Below, Siemens fire alarm manufacturers will specifically explain: 　　There are various types of heat detectors, which can be classified into fixed temperature, rate-of-rise, and combination fixed-temperature/rate-of-rise detectors based on their thermal sensitivity and structural types. In the design of electronic combination detectors, two thermistors with similar performance are generally used. One is placed inside a metal shield, while the other is placed externally. The external thermistor has a faster response speed, while the internal one has a slower response due to thermal insulation. The temperature difference between them is utilized to achieve rate-of-rise alarm, while the external thermistor is set at a fixed temperature (62°C for level 1 sensitivity, 70°C for level 2 sensitivity, and 78°C for level 3 sensitivity) to achieve fixed-temperature alarm. Apart from signal acquisition and amplification, the other components of the circuit are essentially the same as those of ionization smoke detectors. 　　According to the principle of operation of temperature sensor detectors, they can be divided into three categories: 　　1. Fixed temperature detectors: These detectors trigger an alarm when the temperature rise caused by a fire exceeds a certain fixed value within a specified time. They come in linear and point structures. In linear detectors, the insulation material melts when the local ambient temperature reaches a specified value, causing the two conductors to short circuit and generate a fire alarm signal. Point-type fixed temperature detectors utilize components such as bimetallic strips, fusible metals, thermocouples, and thermosensitive semiconductor resistors to generate fire alarm signals at specified temperature values. 　　2. Rate-of-rise detectors: These detectors trigger an alarm when the rate of temperature rise caused by a fire exceeds a certain specified value within a specified time. They also come in linear and point structures. Linear rate-of-rise detectors operate based on the widespread thermal effect, while point-type detectors operate based on local thermal effects. The main sensing devices are air chambers and thermosensitive semiconductor resistor elements. 　　3. Combination fixed-temperature/rate-of-rise detectors: These detectors combine the principles of fixed temperature and rate-of-rise detection and integrate both detector structures. They are generally point-type combination detectors, such as membrane box or thermosensitive semiconductor resistor-type detectors. 　　Previous: Installation and Interlocking Debugging of Fire Alarm Systems 　　Next: Installation Requirements for Automatic Alarm Systems

06/13

Installation Requirements for Automatic Alarm Systems

1. Conventional Smoke and Heat Detectors 　　The installation spacing of smoke detectors and heat detectors should be determined based on the protected area and coverage radius of the detectors. Generally, for smoke detectors, the protected area is 80 square meters when the height is greater than 6 meters and less than or equal to 12 meters, and 60 square meters when the height is less than or equal to 6 meters. For heat detectors, with an installation height of less than or equal to 8 meters, the protected area is typically between 20 to 30 square meters. 　　2. Infrared Beam Smoke Detectors 　　The vertical distance from the optical axis of the infrared beam smoke detector to the ceiling should be between 0.3 to 1.0 meters, and the height from the ground should not exceed 20 meters. The horizontal distance between adjacent pairs of infrared beam smoke detectors should not exceed 14 meters. The horizontal distance from the detector to the side wall should not exceed 7 meters and should not be less than 0.5 meters. The distance between the emitter and receiver of the detector should not exceed 100 meters. 　　3. Manual Fire Alarm Buttons 　　At least one manual fire alarm button should be installed in each fire compartment, and the distance from any location within a fire compartment to the nearest manual fire alarm button should not exceed 30 meters. Manual fire alarm buttons should be installed at the entrances and exits of public activity areas. They should be placed in obvious and easily accessible locations. When mounted on the wall, the bottom edge of the button should be positioned at a height of 1.3 to 1.5 meters above the ground and should be clearly marked. 　　The above are the installation requirements for automatic alarm systems compiled by automatic alarm system manufacturers. We hope this information is helpful to you. For further information on automatic alarm systems, please feel free to contact us. 　　Previous: Introduction to Siemens Fire Alarm System Explaining the Working Principle of Temperature Sensor Detectors 　　Next: Fire Alarm System Manufacturer Introduces Fire Prevention Precautions for Home Decoration

06/12

Fire Alarm System Manufacturers Introduce Fire Safety Precautions for Home Decoration

Fire alarm system manufacturers emphasize several aspects of fire safety precautions for home decoration: 　　1. Choose the Right Decoration Materials: When decorating homes, not only should practicality and aesthetics be considered, but safety should also be a priority. Avoid using combustible materials that produce large amounts of smoke or toxic gases during combustion to minimize the fire load. 　　2. Be Cautious When Altering Gas Pipelines: In many households, water, electricity, and gas pipelines are already installed. During the decoration process, avoid modifying gas pipelines without professional guidance, even for the sake of convenience, aesthetics, or practicality. If alterations are necessary, they must adhere to relevant regulations and be conducted by qualified professionals. When working near gas pipelines, take extra care not to damage the pipelines or valve switches to prevent gas leaks and potential fire or explosion accidents. 　　3. Guard Against Electrical Circuit Faults: Proper installation of electrical circuits is crucial during home decoration. When laying electrical wires, ensure that certified electricians handle the installation. Choose high-quality flame-retardant insulated copper core wires for wiring. When laying electrical wires in suspended ceilings or mezzanines, use insulated metal conduits or flame-retardant rigid plastic conduits with an oxygen index not lower than 35, and avoid making joints. 　　4. Choose the Correct Construction Methods: Strictly adhere to technical specifications for designing and constructing wiring, adhesive usage, and the dimensions of various fasteners. Consider aspects such as circuit inspection, repairing damaged insulation layers, and replacing aging wires during decoration to promptly eliminate hazards in case of unexpected incidents. 　　Previous: Installation Requirements for Automatic Alarm Systems 　　Next: Daily Management and Maintenance of Fire Alarm Systems

06/11

Fire Alarm System Daily Management and Maintenance

Personnel responsible for system management and maintenance must undergo specialized training and pass exams. When the system is updated, retraining of personnel is necessary to ensure familiarity with the new system's principles and procedures. 　　- Documents required upon formal operation include completion drawings, technical specifications, operating procedures, duties of personnel, and records of operations and usage. 　　- Technical archives should be established, including design drawings, construction details, testing records, and operational maintenance information. 　　- Continuous normal operation of the fire alarm system is essential to avoid serious consequences.

06/10

Introduction to Emergency Rescue System Construction in Small and Medium-sized Airports by Fire Alarm System Manufacturers

Safety is relative, and absolute safety is unattainable. When accidents or disasters are inevitable, effective emergency rescue actions are the only powerful measures to resist the spread of accidents or disasters and mitigate their consequences. Emergency rescue work is of great significance for airports to establish effective emergency response mechanisms, promptly deal with various emergencies, and avoid or reduce casualties and property losses, thereby minimizing the impact on the normal operation of the airport. Below, fire alarm system manufacturers will specifically discuss the construction of emergency rescue systems in small and medium-sized airports. 　　1. Sound System and Implementation of Regulations: 　　- The formulation, modification, and implementation of emergency rescue manuals are the primary focus of this work. These manuals specify the emergency rescue organizational structure, clarify the types of emergencies and emergency response levels, define the responsibilities of each emergency rescue unit, and explain the rescue command during emergencies. 　　2. Construction of Management Systems: 　　- The construction, management, and personnel training of emergency rescue equipment and facilities at airports are requirements for the improvement of hardware and software. The command center of the airport is the leading department and organizer for emergency rescue work. Commanders must thoroughly understand and grasp the contents of the manual to enhance their ability to carry out emergency rescue work effectively. 　　3. Personnel Training: 　　- Strengthening the training of airport emergency rescue personnel is an important measure to establish a long-term emergency mechanism. Training should be tailored to different departments involved in emergency rescue, ensuring their ability to respond effectively to various emergencies. 　　4. Drill Situations: 　　- Emergency rescue drills at airports are important means to exercise and improve the capabilities and levels of various participating emergency rescue units in information transmission, emergency response, rescue disposal, coordination, decision-making, and command. After each drill, a summary should be conducted to identify deficiencies and continuously improve the operability of emergency plans. 　　5. Current Situation Analysis: 　　- Strengthening the training of emergency rescue personnel at airports is crucial for effective rescue and minimizing losses. Additionally, ensuring that firefighting and rescue equipment and facilities meet international civil aviation organization requirements and national civil aviation industry standards is essential. 　　- Ensure that the firefighting and rescue equipment and facilities at each airport meet the requirements of the International Civil Aviation Organization (ICAO) and the civil aviation industry standards of China. When equipping emergency rescue equipment and facilities, small and medium-sized airports should consider both the requirements of the International Civil Aviation Organization (ICAO) and the civil aviation industry standards of China. According to the recommended measures of the International Civil Aviation Organization, the number of firefighting vehicles is determined based on the width and length of the largest aircraft body used at the airport. In China's civil aviation industry standards issued in 1993, the number of firefighting and rescue vehicles is determined based on the technical grade of the flight area and the annual passenger throughput. These two standards may be inconsistent in certain situations. 　　- Due to financial constraints, some large equipment is difficult to purchase for small and medium-sized airports, which cannot afford the huge expenses. It is recommended to centrally purchase large equipment and tools in a regional-centered manner, radiating to nearby small and medium-sized airports. This approach facilitates centralized management and unified deployment. 　　Previous: Daily Management and Maintenance of Fire Alarm Systems 　　Next: Jiangsu Beiertaike Building Technology Co., Ltd. Talks about Fire Protection Signs in Ancient Chinese Architecture

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