Application of intelligent safety distribution device in bank distribution system

1 Necessity analysis of bank electricity safety supervision

In recent years, the banking industry has firmly grasped the concept of innovative development, actively embraced new technologies to promote intelligent upgrading, carried out in-depth data innovation to promote service transformation, scientifically and steadily used AI, 5G, blockchain, cloud computing, artificial intelligence, big data and other cutting-edge technologies to optimize financial service processes, strengthen financial risk prevention and control, and extend the reach of smart services. To provide the majority of financial consumers with intelligent, scenario-based, convenient, refined consumer financial products and services.

Up to now, the intelligent transformation rate of China's bank outlets has reached 80%, and information technology has become an important means to enhance the core competitiveness of banks. Under this trend, more and more types of electronic equipment are used in the financial industry, and the use intensity of electronic equipment is greatly enhanced. However, safe electricity consumption is often ignored in the process of electrical system design, construction, operation and use. Lack of corresponding network management means.

In 2016, the China Banking Regulatory Commission issued the Notice of the General Office of the China Banking Regulatory Commission on Effectively Strengthening the Work of Fire Safety Management (2016) No. 159), requiring the establishment of a working mechanism for fire safety self-inspection, self-removal of fire hazards, self-responsibility for fire control, self-management, self-assessment and self-improvement. Ensure fire safety of the unit.

In 2017, the Work Safety Committee of The State Council issued the Notice of the Work Safety Committee of The State Council on the comprehensive control of electrical fires (Safety Commission [2017] No. 4), emphasizing that it will take three years to comprehensively control electrical fires, improve the ability of social units to discover and dispose of fire electrical safety hazards, and promote the institutionalization and standardization of electrical safety management. Consolidate the effectiveness of comprehensive management, strengthen assessment, ensure effectiveness, and improve the electrical fire prevention management level of local governments at all levels, relevant departments and social units.

In 2017, the Agricultural Bank of China Office (Agricultural Bank of China Office issued [2017] No. 695) "Notice on the Comprehensive control of Electrical Fires" made standard requirements and time requirements for the establishment of an in-line safe electricity consumption monitoring system.

In 2019, the Agricultural Bank of China Office (Agricultural Bank of China Office issued [2019] 364) "Notice on the Construction of Electrical Fire Monitoring System" made clear standard requirements and work plan progress requirements for the system.

In 2020, Postal Savings Bank of China Office (Postal Silver Fa (2020) No. 48) "Postal Savings Bank of China Security work upgrading activities 2020 work plan" also requires comprehensive prevention and control of fire safety and fire hazards in the bank scene, strengthen self-management, evaluation and promotion of the working mechanism. Ensure fire safety of all units.

2. Case analysis of electrical accidents in typical bank branches

At 5 PM on July 26, 2015, 23-year-old Xiao Liu was withdrawing money from an ATM in the Nanyaotou West district of Xi 'an City. When her fingers were just placed on the password keyboard, she suddenly suffered an electric shock. The girl shook her hands and screamed for an instant, and later found that the fingernails of two fingers were broken. After receiving the alarm, the staff of the electronic banking department of the Xi 'an branch of Everbright Bank rushed to the scene and tested the ATM with an electric pen and found that it was really live. Relevant experts and maintenance personnel believe that there is a problem with the ATM UPS or the aging of the machine wire, and it is easy to leak electricity in rainy days.

At around 20:00 on June 21, 2018, the building of the Construction Bank in Xi 'an, Shaanxi Province, caught fire, sending flames to the sky and accompanied by a lot of black smoke. The fire, which killed one person, was caused by welding work on the building's facade and burned an area of nearly 300 square meters.

At around 10 o 'clock on January 20, 2021, smoke billowed from a high-rise building in Yuhua District of Changsha City, and an open flame was visible. Changsha fire and rescue detachment command center received an alarm, Yuhua District People's middle Road and Ziyuan Road interchange of a bank upstairs fire, immediately dispatched 8 fire engines 44 people rushed to the scene. At 10:10, rescue forces arrived at the scene, after half an hour of fire rescue, the fire has been controlled. It is reported that the rescue people at the fire scene initially judged that the air conditioning unit caused the fire.

At about 20:50 on January 5, 2023, a self-service banking service room of a construction bank caught fire in Xiayi County, Shangqiu City, Henan Province, with thick smoke billowing from the scene. Witnesses at the scene said that the self-service equipment in the self-service room caused the fire and the interior decorations were ignited. No casualties were reported.

The number of fires caused by violations of electrical installation and use regulations accounted for 34.6% of the total number of fires in the year. Fires caused by careless use of fire accounted for 21.5% of the total number of fires in the year. Smoking accounts for 7.3% of all fires in the year. Spontaneous combustion accounted for 4.8% of all fires in the year. Fires caused by careless production operations accounted for 4.1% of the total number of fires in the year. Fires caused by playing with fire accounted for 2.9% of all fires in the year. Of the 67 larger fires, 37 were electrical. Of the four major fire accidents, three were electrical fire accidents.

Combining the above typical cases and the data from the fire statistics yearbook of the public security fire department over the years, we can find that: With the enhancement of the people's awareness of fire prevention, the proportion of fire accidents caused by human factors has gradually decreased, but the electrical fire accidents with strong concealment and low visualization degree have been high, so it is necessary and urgent to adopt advanced technical prevention means to realize the visualization of electrical fire safety hazards and the intelligent supervision of the distribution system.

Analysis of hidden dangers of bank electricity use

1) The power distribution system is old and low in intelligence

At present, the power consumption system of some bank business places (business outlets, self-service banks and office buildings, etc.) is still in a state of no network, no intelligent stand-alone decentralized independent operation, mainly adopting traditional protection measures, with circuit breakers, fuses, leakage protection, timers and other methods as the mainstream, unable to achieve remote real-time monitoring and management of the front-end power system.

2) There is the problem of non-standard construction wiring

The pre-planning and design of some network points are inconsistent with the actual application, the distribution lines are not laid properly, and some PDC ground cables are missing. As a result, equipment and personal safety cannot be guaranteed.

3) There are hidden dangers of overload and three-phase imbalance

The lack of modern technical means supervision in the operation process of some outlets makes it difficult to prevent unreasonable application. Protection and load does not match, load randomly added and non-standard shard leads, electrical appliances are not standardized, are major causes of fire.

4) Can not prevent cable aging arc failure

In the use of some network equipment, there are mainly random installation, disorderly placement, messy wiring, messy wiring and other phenomena. At the same time, non-24-hour equipment due to personnel do not pull the brake in time, resulting in 24-hour start-up operation, and there may be problems such as insulation aging in buildings with a longer age, which are fire safety hazards.

5) Power loss and waste, security risks

70% of the electricity used in the business premises of some branches belongs to business electricity, such as lighting, computers, air conditioners, drinking fountains, LED screens and other equipment, which need to be switched off after work. However, there will still be non-implementation in the actual implementation of the phenomenon, resulting in a large amount of energy waste, there are safety and fire hazards, so it is necessary to classify and differentiate the electrical circuit of the bank branch.

3Ankerui AISD series intelligent safety distribution device overview

Fire safety, one connected with thousands of households, one connected with social and economic development, related to the safety of people's lives and property, related to the overall situation of the national economy and people's livelihood, the responsibility is heavier than Mount Tai, how to prevent fire is the key!

The common traditional safety electric protection means in life is to cut off the line power supply in time when the arc spark is caused by the circuit short circuit, but at this time the arc spark has been generated, if there are flammable items such as paper and carpet around, a fire will be difficult to avoid.

The intelligent safety power distribution device of Ankeri Electric Co., Ltd. breaks the technical bottleneck of only "post-processing" in the field of traditional electric protection, converts the power distribution into safe electricity in advance, restrains the generation of arc sparks from the source, and greatly reduces the risk of fire. At the same time, the system monitors key data such as voltage, current, power, temperature, residual (leakage) current, and ground insulation resistance in the electrical line in real time, intelligently identifies circuit abnormal risks, timely transmits alarm information to the cloud management system, and reminds the user unit to conduct accurate troubleshooting in time. The system can not only meet the remote emergency treatment of managers in emergency situations, but also output management accounts such as historical fault types, alarm data, maintenance records, etc., to support the daily safe power consumption optimization management of user units, so as to effectively improve the discovery rate and processing rate of electrical safety hazards, and prevent the occurrence of electrical fires.

3.1 Introduction

AISD series intelligent safety power distribution device is an intelligent safety power product specially developed for the low-voltage power distribution side by Ankelui Electric Co., LTD. This product is mainly designed for the low-voltage power distribution side personal electric shock safety accident, line aging, electrical fire caused by leakage and other common hazards. The products are mainly used in schools, hospitals, nursing homes, rehabilitation centers, hotels, shopping malls, enterprises and institutions, household appliances and other low-voltage electricity occasions.

3.2 Function Features

1) Adopt integrated whole machine design, special user wiring and operation window to simplify user use.
2) Improve the continuity of power supply. When a single-phase grounding fault occurs in the power grid on the load side of the device, the power grid can supply power continuously, and the device will alarm, but the power will not be cut off, and the operation of the electrical equipment will not be affected.
3) Improve power supply security. When the load line on the output side of the device has a single-phase grounding fault, the ground point will not generate sparks to prevent electrical fire accidents.
4) Ensure personal safety. The device limits the leakage current of the load side power grid, and can protect the human body when the human body mistakenly touches a single power supply line, and will not cause electric shock accident.
5) Monitoring alarm function. When the output line of the back end is overloaded, over and under voltage, insulation, and the internal overtemperature fault of the device, the device will send an audible and visual alarm signal.
6) Measurement and display of electrical parameters. The device can measure the current, voltage, power, electric energy, device temperature and insulation resistance of the output line in real time, and display it on the touch screen in real time.
7) Event record. The device can store 20 event records, which can be queried by the user.
8) Communication function. The device is equipped with 1 RS485 communication, using the standard Modbus-RTU protocol. The wireless communication function can also be optional, and the data can be sent to the cloud platform through wired networking or wireless, and the user can use the browser, mobile phone APP or wechat user number to remotely monitor and control the device.
9) With emergency mains switching, surge protection and emergency button power off function.

3.3 Technical Specifications

Note: Please consult relevant engineers for specific capacity selection.

3.4 Typical application diagram

AISD series intelligent safety distribution device can be connected to the electrical fire monitoring host through wired communication, and can also be connected to the safe power management cloud platform or other cloud platforms through wireless communication, which is convenient for managers to maintain and manage all the places where intelligent safety distribution devices are installed.

4 Precautions

1) When selecting an intelligent safety distribution device, the rated capacity of the device should be consistent with the rated capacity of the rear electrical equipment. For example, when the rated capacity of the intelligent safety distribution device is 3kVA, the rated capacity of the rear electrical equipment should not exceed 3kVA, and it is strictly prohibited to use it in the distribution line whose rated capacity does not match.

2) The intelligent safety power distribution device adopts wall-mounted installation, can be installed on the wall without the bare machine, or can be installed on the ground. It should be ensured that the installation site is free of dripping, corrosive chemical gases and precipitating substances, and pay attention to the ambient temperature and ventilation and heat dissipation.

3) The wiring should be operated according to the wiring diagram, and in order to prevent the contact resistance at the junction from being too large and causing local overheating, and to avoid improper operation of the device due to poor contact, ensure that the corresponding terminal wiring of the device is tightened and compacted.

4) Non-professionals are strictly prohibited from opening the product shell without authorization.

5 Conclusion

The use of intelligent safety distribution devices in banks can greatly improve the efficiency and effectiveness of power safety management, avoid other aspects of safety problems caused by line problems, and ensure the safety, continuity and stability of power supply. Worth promoting!