How does an electrical fire monitoring system work? How it works

The electrical fire monitoring system is characterized by an early warning system in terms of leakage monitoring. Different from the traditional automatic fire alarm system, the electrical fire monitoring system gives early warning to avoid losses, while the traditional automatic fire alarm system is to reduce losses. Therefore, this is the fundamental reason why it is necessary to install an electrical fire monitoring system regardless of whether it is a new construction or renovation project, especially a unit that has already installed an automatic fire alarm system.

The basic principle is that when the current, temperature and other parameters in the electrical equipment are abnormal or abrupt, the terminal probe head (such as residual current transformer, temperature sensor, etc.) uses the electromagnetic field induction principle and the change of temperature effect to collect the information, and transmits it to the monitoring detector, and analyzes and judges the amplitude of the change through amplification, AD conversion and CPU, and compares it with the alarm set value, and once the set value is exceeded, the alarm signal is issued, and it is also transmitted to the monitoring equipment. After further identification and judgment by the monitoring equipment, when it is confirmed that a fire may occur, the monitoring host sends out a fire alarm signal, lights up the alarm indicator light, sends out an alarm sound, and displays fire alarm and other information on the LCD screen at the same time. According to the information displayed above, the personnel on duty will quickly go to the accident site for inspection and processing, and send the alarm information to the centralized console.

Electrical fire monitoring system: When the detected parameters in the protected line exceed the alarm set value, it can send out an alarm signal, control signal and indicate the alarm part of the system, which is composed of electrical fire monitoring equipment, electrical fire monitoring detector, residual current transformer, temperature detector, etc. The electrical fire monitoring system is characterized by the early warning system in terms of monitoring lines, which is different from the traditional automatic fire alarm system, the early alarm of the electrical fire monitoring system is to avoid losses, and the traditional automatic fire alarm system is to reduce losses.

The electrical fire monitoring detector is installed in the low-voltage power distribution system, which is used to monitor the electrical parameters related to the electrical fire hazards such as leakage current in the system, and when the parameters of the monitoring device in the protected line exceed the alarm set value, the alarm and control signals can occur, so as to eliminate the electrical fire hazards caused by the residual current.

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<> "What is an Electrical Fire Monitoring System? What does an electrical fire monitoring system consist of? As a non-expert, you may not know much about this. But don't worry, let me give you a brief introduction.

What does an electrical fire monitoring system include:

1. Electrical fire monitoring device.

2. Current detector.

3. Electrical fire monitoring detector.

4. Linear temperature sensing fire detector.

<> "What is an Electrical Fire Monitoring System?

Its advantage is that the leakage monitoring is an early warning system. The difference with the previous automatic fire alarm system is that the purpose of the electrical fire monitoring system is to prevent losses, while the purpose of the previous automatic fire alarm system is to reduce losses. Therefore, this is the fundamental factor why electrical fire monitoring systems must be installed in new construction or renovation projects, especially in institutions that have installed automatic fire alarm systems.

The electrical fire monitoring system is suitable for the environment.

1. The nearby air temperature is between 5 degrees Celsius and 40 degrees Celsius, and the average temperature within 24 hours does not exceed 35 degrees Celsius.

2. The maximum temperature is 40 degrees Celsius, and the corresponding humidity of the air does not exceed 50%.

3. In the absence of **, no corrosion, no rain and snow invasion, no gas that damages the insulation and conductive dust.

4. The external magnetic field of the resettlement site shall not exceed five times of the geomagnetic field in any direction.

Precautions for the use of electrical fire monitoring systems.

Depending on the scale of the project and the location of the electrical fire to be detected, the decision is made to use a stand-alone detector or a non-stand-alone detector.

According to the specific situation of electrical laying and electrical devices, confirm the method and installation place of the electrical fire monitoring detector.

When there is no fire control room and the number of electrical fire monitoring detectors is not more than eight, a stand-alone electrical fire monitoring detector can be used.

The establishment of the electrical fire monitoring system shall not affect the normal use of the power supply system.

1. Definitions. Electrical fire monitoring detector refers to a detector that detects changes in electrical fire hazard parameters such as residual current and temperature in the protected line.

2. Applicable area.

It is suitable for factories, large warehouses, offices, commercial buildings, hotels, residences and entertainment venues with the largest probability of electrical fires.

3. Product features.

1. Residual current monitoring.

2. Temperature monitoring.

3. Fault diagnosis, high alarm accuracy.

4. Power bus communication.

5. High reliability (can effectively prevent false positives and false negatives).

Fourth, supporting equipment.

1. Residual current transformer (round).

2. Residual current transformer (rectangular).

3. Temperature detector.

4. Smart circuit breaker.

It can monitor air quality in real time, and places prone to fires.

Summary. The electrical fire monitoring system is an industrial-grade hardware and software system that is used to receive the signals of field equipment such as residual current electrical fire monitoring detectors to realize the alarm, monitoring, control and management of the protected electrical circuits. This system is suitable for intelligent buildings, high-rise apartments, hotels, restaurants, commercial buildings, industrial and mining enterprises, national key fire protection units, petrochemical, cultural, educational and health, finance, telecommunications and other fields, and carries out telemetry, remote adjustment, remote control and remote signaling of detectors scattered in the building, so as to facilitate monitoring and management.

What are the components of an electrical fire monitoring system?

The electrical fire monitoring system is an industrial-grade hardware and software system that is used to receive the signals of field equipment such as residual current electrical fire monitoring detectors to realize the alarm, monitoring, control and management of the protected electrical circuits. This system is suitable for intelligent buildings, high-rise apartments, hotels, restaurants, commercial buildings, industrial and mining enterprises, national key fire protection units, petrochemical, cultural, educational and health, finance, telecommunications and other fields, and carries out telemetry, remote adjustment, remote control and remote signaling of detectors scattered in the building, so as to facilitate monitoring and management.

What are the components.

The electrical fire monitoring and early warning system integrates computer image analysis, automatic early warning, alarm management and other technologies, the system is seamlessly connected with the first monitoring system, through the system active warning push mode, the specific scene of smoke and flame in the monitoring area is real-time through the computer client alarm prompt, and at the same time can be linked to the scene of police lights, speakers, speakers and other equipment, and the alarm can also be pushed to the relevant management personnel through the mobile phone WeChat client.

According to Article 3 of the "Technical Standard for Advanced Warning Electrical Fire Monitoring System" (T CASA-0005-2022) issued by the Anhui Civil Engineering and Architecture Society on January 20, 2022, the advanced warning electrical fire monitoring system should be able to identify potential electrical fire hazards at various stages such as early, middle and late stages. This is the basic requirement of the electrical fire monitoring and early warning system.

In terms of system composition, according to the system architecture of the Internet of Things, it is divided into three levels: the sensing device layer, the network layer and the application layer.

In terms of deployment types, it can be divided into three types: cloud deployment, on-premise deployment, and enhanced deployment.

The system can monitor hidden dangers in the middle and late stages, and should be able to send corresponding sound and light alarm signals on site, remote clients, and locally deployed and enhanced fire control rooms.

The basic function of the electrical fire monitoring and early warning system, the standard has a total of 15 provisions, and the specific ones are not.

Its working principle is that the terminal collects electricity-related parameters, and then conducts big data analysis, and through special algorithms, judges whether the monitored circuit is normal or has risks and hidden dangers such as line aging, equipment aging, and non-standard wiring.

The biggest difference between the electrical fire monitoring and early warning system and the traditional electrical fire alarm system is that the early warning tells the user the fault situation when the accident does not occur, which can effectively prevent the occurrence of fire accidents, and the alarm is to notify the user in time after the failure, and it is possible that the electrical fire accident has occurred.

1. The purpose of setting is different.

1) The fire power supply monitoring system is a real-time monitoring of the power supply of the fire-fighting equipment, and the power supply of the fire-fighting equipment is always in a normal state by detecting the working status of the current and voltage value of the power supply, so as to ensure the reliable operation of the fire-fighting equipment.

2) The electrical fire monitoring system belongs to the fire early warning system, which eliminates the fire hazard of electrical equipment by detecting the residual current value of the power line or detecting the abnormal temperature rise of the electrical components.

2. The setting method is different.

1) In the electrical fire monitoring system, whether it is a single-phase or three-phase power circuit, the line must pass through the residual current sensor at the same time. The residual current sensor detects the leakage current, and when the leakage current reaches a predetermined value, it sends an alarm signal.

2) In the fire power monitoring system, each phase line passes through the current sensor separately. The current sensor detects the current in each phase individually and sends out an alarm signal when the current value deviates from the normal value.

3. The installation position is different.

1) In the installation position, the residual current electrical fire monitoring detector should be set at the head of the low-voltage distribution system as the basic principle, and be set at the outlet end of the first-level distribution cabinet (box) (when the leakage current of the power supply line is greater than 500mA, it will be set up in the next-level distribution cabinet).

2) The voltage and current sensor of the fire power monitoring system is usually installed at the end of the electrical circuit, such as the on-site distribution box, dual power switching cabinet or starting cabinet and other parts of the hail.