Application of Acrel-6000 Electrical Fire Monitoring System in Yuhu Minghao District C Project

This paper introduces the function and significance of the Acrel-6000 electrical fire monitoring system in commercial real estate projects through the introduction of the leakage fire system project in the C-zone of Yuhu Mingyang.

Ankerui Electric Co., Ltd. Shanghai Jiading




1. Project introduction

Located in Jinkeng Reservoir, Jinkeng Forest Park, Luogang District, Guangzhou City, Yuhu Minghao is a noble residential complex featuring mountainous architecture. The land is located on the hillside and slopeland on the south side of Jinkeng Reservoir in Luogang District, Guangzhou. On the north, Jinkeng Reservoir is adjacent to the Jinkeng Reservoir, adjacent to Jinkeng Forest Park. The land area is 230,000 m2, and the planned construction area is about 232,000 m2. The project is planned to be developed into a noble and leisure residential area. The Yuhu Minglu is to create a noble leisure house. The planning and design idea consists of four groups: A, B, C, and D. This paper mainly predicts and monitors the power distribution circuit in the distribution box of Yuhu Minghao C area due to leakage and fire caused by leakage, accurately monitors the fault and abnormal state of the electric line, finds the fire hazard of the electric fire, and promptly alerts the personnel. To eliminate these hidden dangers. Help the property save labor costs and improve work efficiency.

The system detects the leakage current and overcurrent of each power circuit in the field, and promptly reminds the staff of the location of the line fault in the way of sound and light alarm, and monitors the change of the fault point. Store various faults and operation test signals, and display the system power status to effectively prevent common electrical fire accidents caused by electric leakage and ensure the safety of people's lives and property.

2. Design basis for leakage fire monitoring system

This system complies with the National Standard of the People's Republic of China GB14287.1-2005 "Electrical Fire Monitoring System Part 1: Electrical Fire Monitoring Equipment". In addition, the "Fire Protection Code for High-rise Civil Buildings" GB50045-1995 (revised in 2005) 9.5.1 stipulates that the fire alarm system should be installed in high-rise buildings with high fire risk and dense personnel; "Code for Fire Protection of Building Design" GB50016-2006 11.2.7 shops, theaters, cinemas, stadiums and other densely populated places should be equipped with leakage fire alarm system

3. Design, installation and wiring design of the monitoring system

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Figure 1 system topology

The electrical fire monitoring equipment and the alarm signal of the system shall be located in the fire control room or on the place where someone is on duty. The main unit "target=_blank> machine power should be taken from the fire power supply (AC220V) of the control center.

Each monitoring detector is powered on site, and the power access point should be at the upper end of the circuit breaker.

1) Installation design of the internal form of the power distribution cabinet

This project is a new construction project. All monitoring detectors are installed in the distribution box of the power distribution room, and are installed in the panel of the power distribution cabinet by embedded installation. Staff can view the leakage and temperature information of each circuit through the panel button. The residual current transformer is installed on the A, B, C three-phase power line and the N line. The PE line must not pass through the transformer and be firmly fixed. The connection between the detector and the transformer should be shielded. The temperature sensor is A thermistor NTC can provide a temperature reference of -10-120 ° C, and the thermistor can be connected to the leakage fire monitoring detector through a wire.

2) Installation design of the entire leakage fire monitoring system

Each leakage monitoring detector on the site has a 485 communication interface. All the detectors in the field must be connected in series by hand through the shielded twisted pair. When connecting, it should be noted that the number of 485 bus connections is not more than 32, and It is appropriate to be around 20.

The project consists of 1 building with a total of 27 distribution boxes. According to the relevant provisions of “Building Electrical Fire Prevention Requirements and Test Methods”, “To prevent electrical equipment and line leakage fires, the power supply line should be automatically cut off or Alarm residual current action protector". Therefore, in this project, three ARCM200BL-J1, 24 ARCM300-J1 and 27 residual current transformers AKH-0.66L are installed in the incoming line of each distribution box, and a wall-mounted electrical fire monitoring system is set up in the control room. Acrel-6000/B. The distribution box module is connected to the background through a 485 bus, and the leakage and temperature information of each place is monitored centrally, which is convenient for the staff to carry out unified management.

4, system software interface

This set of PC software Acrel-6000 electrical fire system. Mainly has the following features: friendly human-machine interface, real-time and timed collection of residual current data and temperature of field devices, and alarm prompt sound and light alarm and other functions. The customer can set the alarm temperature value and leakage current value according to actual needs. When the alarm fault is released, the alarm can be reset remotely. The system can record alarm events, dates, alarm values, and crossing values, and generate reports.

4.1 software operation main interface

The main interface of the system displays the status of the current device, including operation, fault, alarm, and power status. In normal operation, faults and alarm indications are not displayed; when faults are detected and alarms occur, faults and alarm indications are displayed; after faults and alarms are eliminated, faults and alarm indications are automatically hidden; in the power status bar, the display is currently the master Power supply or backup power supply.

The interface displays the current alarm and fault information of the system in real time. The information includes: the time of occurrence, the number of the alarm, the fault detector (or module), the area and location where the detector is located, the alarm, and the type of fault.

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Figure 2 system main interface

4.2 Status interface

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Figure 3 detector status display interface

In the status interface, the operator can visually see the status of all detectors connected to the monitoring device. The status of the detector is distinguished by color. Green indicates normal, yellow indicates failure, and red indicates alarm.

You can query the information of the detector by clicking the icon representing each detector. The main contents include: the number and type of the detector, the monitoring area where it is located, and the value of each electrical parameter in the detector.

4.3 Event Interface

In this interface, the user can query the records of the corresponding alarms, faults, and event types in any time period.

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Figure 4 event record query interface 1

4.4 Maintenance Interface Operation

You can view the configuration user, serial port, and detector module. The detector configuration interface can query the information of the detector currently connected to the monitoring device, or add and modify it according to the actual situation on site.

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Figure 5 detector configuration interface

5, the conclusion

With the development of intelligent buildings and the widespread use of electricity, people's awareness of safety is becoming higher and higher. Installation of leakage fire system in public buildings is an inevitable trend of intelligent construction. The electrical fire system is conducive to the detection of potential safety hazards, timely handling of safety hazards, and the importance of fire prevention and precaution. Since the system was put into operation, it has helped the property owners in Area C of Yuhu to discover and rectify many hidden dangers, greatly improving the work efficiency of the staff, ensuring the stable and orderly work of daily work, and ensuring the residence of the residents. Safety and provide a scientific basis for the company's fire management.



references

[1]. Ren Zhicheng Zhou Zhong. Principles and Application Guidelines of Power Electrical Measurement Digital Instrumentation [M]. Beijing. China Electric Power Press. 2007. 4

[2]. Wu Enyuan Zhou Zhong Electrical Fire Monitoring System Design and Application Atlas 2012. 8



About the author: Yang Junjun, female, undergraduate. Position: Now working for Ankerui Electric Co., Ltd., contact number, mobile phone, QQ
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn


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