TWM646713U - Improved device for preventing accidental power outage during fire alarm, firefighting, and emergency equipment operation - Google Patents

Abstract

The main purpose of the present invention is to provide a device that can be used to prevent accidental power outage during the operation of fire alarms, firefighting, and emergency equipment. The improved device for preventing accidental power outage is connected to both the power and load sides of a main low-voltage circuit breaker. When the main circuit breaker is closed and the fire alarms, firefighting, and emergency equipment are activated, the device prevents power interruption caused by the circuit breaker tripping. If the fire alarms, firefighting, and emergency equipment return to normal operation without activation, the device will not cause tripping under loaded conditions when the main circuit breaker is closed and the improved device for preventing accidental power outage is enabled.

The improved device for preventing accidental power outage during fire alarms, firefighting, and emergency equipment operation includes improvements to the traditional practice of using a general low-voltage circuit breaker. In traditional practice, if there is a fault such as an overload or short circuit in the electrical circuit during a fire, the low-voltage circuit breaker would trip, causing power interruption. If an electromechanical automatic switching device were used as an isolation device, the fault would not trip and the accident could not be isolated. The present invention solves this problem by connecting a gate switch with an electric operator or a low-voltage switch with no tripping device to the main low-voltage circuit breaker, and setting up a fire alarm, firefighting, and emergency equipment power state control unit and an automatic switch control unit. When the main low-voltage circuit breaker is closed and a fire occurs, the low-voltage switch with no tripping device is closed. When the fire is extinguished and the main low-voltage circuit breaker is closed, the low-voltage switch with no tripping device is opened, meeting regulatory requirements and providing electrical safety. The present invention offers a simple, safe, and reliable design that ensures uninterrupted power supply and improves the safety of electrical equipment power supply and use.

Description

Improved devices for fire alarm and emergency equipment to prevent accidental power outages

The main purpose of this invention is to provide a device for preventing false power outages when fire alarm and emergency equipment is activated. The improved device for preventing false power outages for fire alarm and emergency equipment is connected to a main low-voltage circuit breaker. On the power side and the load side, when the main circuit breaker is closed and the fire alarm and emergency equipment is activated, it prevents power interruption caused by tripping of the main circuit breaker. When the fire alarm and emergency equipment does not operate and returns to normal, The main circuit breaker is closed and the improved device for fire alarm and emergency equipment to prevent erroneous power outages is turned on and off, and will not cause on-off under load. The improved device for fire alarm and emergency equipment to prevent erroneous power outages includes an improvement habit. In the art, ordinary low-voltage circuit breakers are used when a fire occurs. If there is a fault in the power circuit, such as overload or short circuit, the low-voltage circuit breaker will trip and cut off the power. If an exciting electric automatic transfer switch is used as the isolation device, the fault will not trip and cut off. The lack of electricity to isolate accidents is a main low-voltage circuit breaker connected in parallel with a knife switch with an electric operator or a non-trip function low-voltage switch without trip components to set up a fire alarm and emergency equipment power status control unit, and an automatic switching control unit is provided. When the main low-voltage circuit breaker is closed and a fire alarm occurs, the low-voltage switch without trip function will be turned on and closed. When the main low-voltage circuit breaker is closed, such as when the fire alarm is released, there will be no trip function. Function low voltage switch on and off, It meets the regulatory requirements and electrical safety functions, provides a simple, safe and reliable structure, ensures uninterrupted power supply, and improves the safety of power supply and use of electrical equipment.

According to Article 841 of the revised version of the Regulations on Consumer Electrical Equipment Installations, circuits supplying power to motor-driven fire pumps should be monitored to avoid inadvertent isolation of connections specified below: 3. Where the isolation equipment is exclusively dedicated to the load of the fire pump: (1) ) The isolation device used for regular power supply should be the user's master switch, and can be locked in the closed position. It should be located within the load equipment range of the fire pump, and away from other buildings or other fire pump power isolation equipment, and there should be sufficient distance to prevent Accidental simultaneous operation. (2) When an on-site standby generator is used as a backup power source, its wiring shall comply with the emergency power circuit regulations of Paragraph 2 of Article 976, and the isolation device shall be lockable in the closed position. For users, when a fire occurs, whether it is powered by the mains under normal conditions or by a backup generator when the mains fails, there must be electric energy to supply fire-fighting equipment to prevent the disaster from expanding and causing losses to people and property. Generally, most of the isolation equipment that supplies fire protection electricity uses low-voltage circuit breakers. This circuit breaker can protect over-current components during line short-circuit accidents and equipment overloads. When abnormal conditions occur, the circuit breaker will trip and cut off power to isolate. Therefore, when a fire breaks out, the low-voltage circuit breaker used in a traditional power circuit cannot be forced to close to supply power to the fire-fighting equipment. The above problem cannot be solved in the conventional technology.

According to Article 841 of the revised version of the Regulations on Consumer Electrical Equipment Installations, circuits supplying power to motor-driven fire pumps should be monitored to avoid inadvertent isolation of connections specified below: 3. Where the isolation equipment is exclusively dedicated to the load of the fire pump: (1) ) The isolation device used for regular power supply should be the user's master switch, and can be locked in the closed position. It should be located within the load equipment range of the fire pump, and away from other buildings or other fire pump power isolation equipment, and there should be sufficient distance to prevent Accidentally fucked at the same time do. (2) When an on-site standby generator is used as a backup power source, its wiring shall comply with the emergency power circuit regulations of Paragraph 2 of Article 976, and the isolation device shall be lockable in the closed position. In order to prevent the above-mentioned low-voltage circuit breaker from tripping and cutting off power due to the activation of internal protection components in the event of a fire, instantaneous excitation type automatic transfer switches are used on the market as switches between mains and standby generators. The advantage is that they will not be Overload or short-circuit conditions cause power outage, resulting in no power source for fire-fighting equipment. However, the instantaneous excitation automatic switch basically has a limited arc suppression function and cannot trip to isolate the accident when a short circuit occurs on the line. , or when the equipment is overloaded or overcurrent, it cannot trip to isolate the accident. However, the user's main switch or the switch of the backup generator has the function of protecting the fault state in the power system loop to protect the lines and equipment at that moment. Excitation-type automatic switching switches cannot solve the above problems in the conventional technology.

Units that have strict requirements on power supply quality, such as military and defense units, important government agencies, airports, wafer manufacturing plants, chemical plants, steel plants, mass transportation and other agencies and business units, in order to ensure the stability of power supply. Generally speaking, there are facilities and equipment with backup power supply, using dual power supply or more, or feeder loop power supply from multiple power sources. When planning the power system, there should be at least enough backup power supply such as generators, uninterruptible power supply systems, and storage battery banks. , solar power, wind power, etc. However, for general commercial and general community residential buildings, due to space and cost factors, it is generally impossible to require Taiwan Electric Power Company to provide a variety of feeder circuit power supply, nor to purchase expensive power generation equipment. Generally, Generally speaking, the main source of electricity for residential and commercial buildings is the Taiwan Electric Power Company. Then, in accordance with the requirements of fire regulations, backup generator equipment is set up under certain conditions. Under normal conditions, a low-voltage circuit breaker with a trip power-off protection function is used. The low-voltage circuit breaker is used as the main isolation device between the mains and the backup power supply. When the fault current on the line or the overload current of the equipment exceeds the characteristic curve of the low-voltage circuit breaker in the power circuit, the low-voltage circuit breaker will It performs the function of tripping and cutting off power to isolate accidents. Therefore, under the functional requirement of uninterruptible power in fire or emergency situations, ordinary low-voltage circuit breakers cannot achieve the function of forced power supply.

In the current technology, for equipment whose power supply cannot be interrupted, such as furnaces in steel plants, chemical plant processes, wafer factory processes, hospital operating rooms, etc., in order to achieve uninterrupted power supply, the isolation equipment switch has Used such as large blade switches, power distribution boxes, safety switch boxes, and low-voltage molded low-voltage circuit breakers without tripping power-off components. The above products can only perform simple closing and opening functions in the power circuit. The above products do not have sufficient arc extinguishing facilities in product design, which will result in the failure of opening, closing and closing under load. If operated under load, it may cause explosions or even fires. Although warning signs are posted, Misoperation or misoperation will cause serious accidents, not to mention that the isolating switch equipment does not have an overload trip protection function, which is a problem that cannot be solved by conventional techniques.

To sum up, in most power equipment on the market, low-voltage circuit breakers are generally used for isolation equipment. This low-voltage circuit breaker has the function of protecting lines and equipment from overload, and performs the functions of closing and opening. However, in Under special conditions, if the circuit requires forced closing for power supply, the general low-voltage circuit breaker cannot achieve the forced closing function. If a switch without tripping and power-off function is used, it will not trip and cut off the power during power transmission, but it will not trip when the load is on. If closing or opening is performed, sparks or even explosions may occur, causing industrial safety accidents. What's more, under normal conditions, there is no way to achieve the function of isolating equipment and protecting circuits and equipment. The above-mentioned deficiencies cannot be solved in the conventional art. problem.

In summary, the low-voltage switch of the isolation equipment has a trip element when it reaches the normal state, which can protect the lines and equipment, and can force the power supply to the fire protection equipment when a fire occurs. When backup power or emergency equipment is activated, the power supply of the isolating switch circuit can be forced not to be interrupted. This improved device for fire alarm and emergency equipment to prevent accidental power outages can have the functions of opening, closing, and protection by the low-voltage circuit breaker under normal conditions. However, in an emergency, it is necessary to provide a safe and reliable equipment that does not interrupt the power supply, to use electrical equipment to operate normally, to prevent accidents, to protect the safety of people's lives and to prevent damage to equipment and property, and to improve the safety of electricity.

In order to achieve the above purpose, an improved device for fire alarm and emergency equipment to prevent accidental power outages is provided in parallel with a main low-voltage circuit breaker. A low-voltage switch with an electric operator actuated by a non-trip function is provided. The electric operator actuates the non-trip function. The low-voltage switch with trip function achieves the functions of opening, breaking and closing. When the main low-voltage circuit breaker is in the closed state, when the fire alarm equipment is activated, the electric operator actuates the low-voltage switch without trip function to close, achieving the function of uninterrupted power supply. , similarly when the emergency equipment information is activated, the above-mentioned operating principle achieves the function of uninterrupted power supply. When the above-mentioned abnormal state is relieved and the main low-voltage circuit breaker is in the closed state, the electric operator activates the non-trip function low-voltage switch The on-off function achieves the function of not on-off under load.

In order to achieve the above purpose, the improved device for preventing accidental power outage of fire alarm and emergency equipment can be provided with an automatic switching control unit. The automatic switching control unit activates the electric operation according to the information of the power status control unit of the fire alarm and emergency equipment. device to achieve automatic closing and opening functions.

In order to achieve the above purpose, an improved device for fire alarm and emergency equipment to prevent erroneous power outage is connected in parallel to the power side and load side of a main low-voltage circuit breaker. The improved device for fire alarm and emergency equipment to prevent erroneous power outage includes : A low-voltage switch without tripping function, an electric operator, a power status control unit for fire alarm and emergency equipment, and an automatic switching control unit; the low-voltage switch without tripping function is a low-voltage circuit breaker without tripping function, The low voltage switch without tripping function Connected in parallel with the power side and the load side of the main low-voltage circuit breaker, the non-trip function low-voltage circuit breaker is provided with an operating handle to actuate the electric operator according to the automatic switching control unit to achieve actuation closing and opening. Function; the electric operator is externally placed at the position of the non-trip function low-voltage switch. The electric operator is electrically connected to the automatic switching control unit according to the information of the fire alarm and emergency equipment power status control unit to operate the non-trip function. Disabled low-voltage switch; the fire alarm and emergency equipment power status control unit is provided with at least one of a fire alarm fire equipment detection signal receiving unit or an emergency equipment power status detection unit, and the fire alarm fire fighting equipment detection signal receiving unit The unit is electrically connected to an external fire alarm equipment. When the external fire alarm equipment is activated, the fire alarm equipment detection signal receiving unit receives the information and is electrically connected to the automatic switching control unit. The emergency equipment power status detection The unit is electrically connected to an emergency equipment forced actuation unit. When the emergency equipment forced actuation unit is activated, the emergency equipment power status detection unit receives information and is electrically connected to the automatic switching control unit; the automatic switching control unit is based on the The command information from the power status control unit of the fire alarm and emergency equipment activates the electric operator to make the low-voltage switch without a trip function perform the opening, closing and closing functions; wherein the improved device for preventing accidental power outage of the fire alarm and emergency equipment is the main When the low-voltage circuit breaker is not in the closed position, the low-voltage switch without tripping function will not operate the electric operator according to the information of the automatic switching control unit and cannot forcibly close the low-voltage switch without tripping function to prevent the low-voltage switch without tripping function from being alone. When power is transmitted under load, when the main low-voltage circuit breaker is in the closed position and the fire alarm and emergency equipment power status control unit is activated, a message is sent to activate the automatic switching control unit to activate the electric operator so that there is no trip function. The low-voltage switch is closed. When the main low-voltage circuit breaker is in the closed position, the fire alarm and emergency equipment power status control unit does not operate. The fire alarm, fire protection and emergency equipment power status control unit sends a message to activate the automatic switching control unit to enable the electric operator. Actuation causes the low-voltage switch without tripping function to turn on and off.

In order to achieve the above purpose, an improved device for fire alarm and emergency equipment to prevent erroneous power outage is connected in parallel to the power side and load side of a main low-voltage circuit breaker. The improved device for fire alarm and emergency equipment to prevent erroneous power outage includes : a knife switch, an electric operator, a fire alarm and emergency equipment power status control unit, and an automatic switching control unit; the knife switch is connected in parallel with the power side and the load side of the main low-voltage circuit breaker , the knife switch actuates the closing and opening functions of the electric operator according to the automatic switching control unit; the electric operator is externally placed at the position of the knife switch, and the electric operator operates according to the power of the fire alarm and emergency equipment The information of the status control unit is electrically connected to the automatic switching control unit to activate the knife switch; the fire alarm and emergency equipment power status control unit is provided with a fire alarm fire equipment detection signal receiving unit or an emergency equipment power status detection unit At least one of the above two, the fire alarm and firefighting equipment detection signal receiving unit is electrically connected to an external fire alarm equipment. When the external fire alarm equipment is activated, the fire alarm and firefighting equipment detection signal receiving unit receives the information and electrically Connected to the automatic switching control unit, the emergency equipment power status detection unit is electrically connected to an emergency equipment forced action unit. When the emergency equipment forced action unit is activated, the emergency equipment power status detection unit receives information and is electrically connected to The automatic switching control unit; the automatic switching control unit operates the electric operator according to the command information of the power status control unit of the fire alarm and emergency equipment to make the knife switch perform the opening and closing functions; wherein the fire alarm and emergency equipment An improved device for emergency equipment to prevent accidental power outages. When the main low-voltage circuit breaker is not in the closed position, the blade switch will not operate the electric operator according to the information of the automatic switching control unit and cannot forcibly close the blade switch to prevent the switch from being closed. The knife switch alone sends power under load. When the main low-voltage circuit breaker is in the closed position and the fire alarm and emergency equipment power status control unit is activated, it sends a message to activate the automatic switching control unit to activate the electric operator to activate the switch. The knife switch is closed, and when the main low-voltage circuit breaker is in the closed position, the fire alarm and emergency equipment If the power status control unit does not operate, the fire alarm and emergency equipment power status control unit sends a message to activate the automatic switching control unit to activate the electric operator to turn on and off the knife switch.

1: Improved device for fire alarm and emergency equipment to prevent accidental power outage

2: Main low voltage circuit breaker

3:Power side

4: Load side

5: Low voltage switch without trip function

6: Electric operator

7: Fire alarm and emergency equipment power status control unit

8: Automatic switching control unit

9: Low voltage circuit breaker without tripping function

10: Operating handle

11: Fire alarm and firefighting equipment detection signal receiving unit

12: Emergency equipment power status detection unit

13:External fire alarm equipment

14: Emergency equipment forced actuation unit

15: Knife switch

[Figure 1] This is a schematic configuration diagram of the first embodiment of an improved device for fire alarm and emergency equipment to prevent accidental power outages.

[Figure 2] This is a schematic configuration diagram of the second embodiment of an improved device for fire alarm and emergency equipment to prevent accidental power outages.

The first implementation example of this invention's improved device 1 for fire alarm and emergency equipment to prevent erroneous power outage is shown in Figure 1. An improved device 1 for fire alarm and emergency equipment to prevent erroneous power outage is connected in parallel to a main low-voltage circuit breaker. The power side 3 and the load side 4 of the device 2. This improved device 1 for fire alarm and emergency equipment to prevent accidental power outages includes: a low-voltage switch 5 without tripping function, an electric operator 6, and a power supply for fire alarm and emergency equipment. The status control unit 7 and an automatic switching control unit 8; the non-trip function low-voltage switch 5 is a non-trip function low-voltage circuit breaker 9, the non-trip function low-voltage switch 5 and the main low-voltage circuit breaker 2 The power side 3 and the load side 4 are connected in parallel. The non-trip function low-voltage circuit breaker 9 is provided with an operating handle 10. The operating handle 10 is actuated according to the automatic switching control unit 8 to achieve the closing and opening functions of the electric operator 6. ; The electric operator 6 is externally installed at the position of the low-voltage switch without trip function 5. The electric operator 6 is electrically connected to the automatic switching control unit 8 according to the information of the fire alarm and emergency equipment power status control unit 7. Activate the non-trip function low-voltage switch 5; the fire alarm firefighting and emergency equipment power status control unit 7 is provided with at least one of a fire alarm firefighting equipment detection signal receiving unit 11 or an emergency equipment power status detection unit 12, The fire alarm equipment detection signal receiving unit 11 is electrically connected to an external fire alarm equipment 13 In conclusion, when the external fire alarm equipment 13 is activated, the fire alarm equipment detection signal receiving unit 11 receives the information and is electrically connected to the automatic switching control unit 8, and the emergency equipment power status detection unit 12 is electrically connected An emergency equipment forced activation unit 14. When the emergency equipment forced activation unit 14 is activated, the emergency equipment power status detection unit 12 receives information and is electrically connected to the automatic switching control unit 8; the automatic switching control unit 8 is The command information from the power status control unit 7 of the fire alarm and emergency equipment actuates the electric operator 6 to make the non-trip function low-voltage switch 5 perform the opening and closing functions; wherein the fire alarm and emergency equipment prevents the improvement of accidental power outage. Device 1 When the main low-voltage circuit breaker 2 is not in the closed position, the non-trip function low-voltage switch 5 makes the electric operator 6 inactive according to the information of the automatic switching control unit 8 and cannot forcibly close the non-trip function low-voltage switch 5 , to prevent the non-trip function low-voltage switch 5 from sending power alone under load. When the main low-voltage circuit breaker 2 is in the closed position and the fire alarm and emergency equipment power status control unit 7 is activated, it sends a message to activate the automatic switching control. The unit 8 operates the electric operator 6 to close the low-voltage switch 5 without a trip function. When the main low-voltage circuit breaker 2 is in the closed position, the fire alarm and emergency equipment power status control unit 7 does not operate. The equipment power status control unit 7 sends a message to activate the automatic switching control unit 8 to activate the electric operator 6 to turn on and off the non-trip function low-voltage switch 5 .

The second implementation example of this invention's improved device 1 for fire alarm and emergency equipment to prevent erroneous power outages is shown in Figure 2. An improved device 1 for fire alarm and emergency equipment to prevent erroneous power outages is connected in parallel to a main low-voltage circuit breaker. The power side 3 and the load side 4 of the device 2. The improved device 1 for preventing accidental power outage of fire alarm and emergency equipment includes: a knife switch 15, an electric operator 6, and a fire alarm and emergency equipment power status control unit. 7. With an automatic switching control unit 8; the knife switch 15 is connected in parallel with the power side 3 and the load side 4 of the main low-voltage circuit breaker 2, and the knife switch 15 operates according to the automatic switching control unit 8 The electric operator 6 activates the closing and opening functions; the electric operator 6 The operator 6 is externally located at the position of the knife switch 15. The electric operator 6 is electrically connected to the automatic switching control unit 8 according to the information of the fire alarm and emergency equipment power status control unit 7 to actuate the knife switch 15. ; The fire alarm and emergency equipment power status control unit 7 is provided with at least one of a fire alarm and firefighting equipment detection signal receiving unit 11 or an emergency equipment power status detection unit 12. The fire alarm and firefighting equipment detection signal receiving unit 11 is electrically connected to an external fire alarm equipment 13. When the external fire alarm equipment 13 is activated, the fire alarm equipment detection signal receiving unit 11 receives the information and is electrically connected to the automatic switching control unit 8. The emergency equipment The power status detection unit 12 is electrically connected to an emergency equipment forced activation unit 14. When the emergency equipment forced activation unit 14 is activated, the emergency equipment power status detection unit 12 receives information and is electrically connected to the automatic switching control unit 8; The automatic switching control unit 8 operates the electric operator 6 according to the instruction information of the power status control unit 7 of the fire alarm and emergency equipment to make the blade switch 15 perform the opening and closing functions; wherein the fire alarm and emergency equipment prevents Improved device 1 for erroneous power outage. When the main low-voltage circuit breaker 2 is not in the closed position, the knife switch 15 makes the electric operator 6 inactive according to the information of the automatic switching control unit 8 and cannot forcibly close the knife switch 15. To prevent the knife switch 15 from transmitting power alone under load, when the main low-voltage circuit breaker 2 is in the closed position and the fire alarm and emergency equipment power status control unit 7 is activated, a message is sent to activate the automatic switching control unit 8 to cause the The electric operator 6 operates to close the blade switch 15. When the main low-voltage circuit breaker 2 is in the closed position, the fire alarm and emergency equipment power status control unit 7 does not operate, and the fire alarm, firefighting and emergency equipment power status control unit 7 issues an The information actuates the automatic switching control unit 8 to actuate the electric operator 6 to turn on and off the knife switch 15 .

To sum up, this invention has created an improved device for fire alarm and emergency equipment to prevent accidental power outages, which further improves the stability and safety of the power supply system and has deep industrial applications. sex. Furthermore, after checking the related products on the market and approved patent announcements, we found no products with the same essential technical features as this creation, which also meet the statutory patent application requirements of novelty and advancement. To file a patent application in accordance with the law, we sincerely request the review committee to grant the patent to this case as soon as possible to ensure the rights and interests of the applicant. However, what is disclosed in this case is only a preferred embodiment of this invention and cannot be used to limit the scope of rights of this invention. Any equivalent changes or modifications made in accordance with the spirit of this invention are still covered by the patent application scope of this invention. middle.

1: Improved device for fire alarm and emergency equipment to prevent accidental power outage

2: Main low voltage circuit breaker

3:Power side

4: Load side

5: Low voltage switch without trip function

6: Electric operator

7: Fire alarm and emergency equipment power status control unit

8: Automatic switching control unit

9: Low voltage circuit breaker without tripping function

10: Operating handle

11: Fire alarm and firefighting equipment detection signal receiving unit

12: Emergency equipment power status detection unit

13:External fire alarm equipment

14: Emergency equipment forced actuation unit

Claims (2)

An improved device for fire alarm and emergency equipment to prevent erroneous power outages, which is connected in parallel to the power side and load side of a main low-voltage circuit breaker. The improved device for fire alarm and emergency equipment to prevent erroneous power outages includes: one without tripping Functional low-voltage switch, an electric operator, a fire alarm and emergency equipment power status control unit, and an automatic switching control unit; the non-trip function low-voltage switch is a non-trip function low-voltage circuit breaker, the non-trip function The low-voltage switch is connected in parallel with the power side and the load side of the main low-voltage circuit breaker. The non-trip function low-voltage circuit breaker is provided with an operating handle to actuate the electric operator according to the automatic switching control unit to achieve actuation and closing. On-off function; the electric operator is externally installed at the position of the low-voltage switch without tripping function. The electric operator is electrically connected to the automatic switching control unit to operate the automatic switching control unit according to the information of the fire alarm and emergency equipment power status control unit. Low-voltage switch without trip function; the fire alarm and emergency equipment power status control unit is equipped with at least one of a fire alarm fire equipment detection signal receiving unit or an emergency equipment power status detection unit. The fire alarm fire equipment detection unit The signal receiving unit is electrically connected to an external fire alarm equipment. When the external fire alarm equipment is activated, the fire alarm equipment detection signal receiving unit receives information and is electrically connected to the automatic switching control unit. The power status of the emergency equipment The detection unit is electrically connected to an emergency equipment forced action unit. When the emergency equipment forced action unit is activated, the emergency equipment power status detection unit receives information and is electrically connected to the automatic switching control unit; the automatic switching control unit Activate the electric operator according to the command information of the power status control unit of the fire alarm and emergency equipment to make the low-voltage switch without tripping function perform the functions of opening, closing and closing. Among them, the fire alarm and emergency equipment has an improved device to prevent accidental power outage. When the main low-voltage circuit breaker is not in the closed position, the low-voltage switch without trip function makes the electric operator inoperable according to the information of the automatic switching control unit. Forcibly close the low-voltage switch without a trip function to prevent the low-voltage switch without a trip function from transmitting power alone under load, and send a message when the main low-voltage circuit breaker is in the closed position and the fire alarm and emergency equipment power status control unit is activated. Activate the automatic switching control unit to activate the electric operator to close the low-voltage switch without trip function. When the main low-voltage circuit breaker is in the closed position, the fire alarm and emergency equipment power status control unit does not activate. The fire alarm and emergency equipment The equipment power status control unit sends a message to activate the automatic switching control unit to activate the electric operator to turn on and off the low-voltage switch without tripping function. An improved device for fire alarm and emergency equipment to prevent erroneous power outages, which is connected in parallel to the power side and load side of a main low-voltage circuit breaker. The improved device for fire alarm and emergency equipment to prevent erroneous power outages includes: a knife switch , an electric operator, a fire alarm and emergency equipment power status control unit, and an automatic switching control unit; the knife switch is connected in parallel with the power side and the load side of the main low-voltage circuit breaker, and the knife switch The electric operator activates the closing and opening functions according to the automatic switching control unit; the electric operator is externally placed at the position of the knife switch, and the electric operator operates according to the information of the power status control unit of the fire alarm and emergency equipment Electrically connected to the automatic switching control unit to activate the knife switch; the fire alarm and emergency equipment power status control unit is provided with at least one of a fire alarm fire equipment detection signal receiving unit or an emergency equipment power status detection unit. one item, The fire alarm and firefighting equipment detection signal receiving unit is electrically connected to an external fire alarm equipment. When the external fire alarm equipment is activated, the fire alarm and firefighting equipment detection signal receiving unit receives information and is electrically connected to the automatic switching control unit. , the emergency equipment power status detection unit is electrically connected to an emergency equipment forced actuation unit. When the emergency equipment forced action unit is activated, the emergency equipment power status detection unit receives information and is electrically connected to the automatic switching control unit; the The automatic switching control unit operates the electric operator according to the command information of the power status control unit of the fire alarm and emergency equipment to make the knife switch perform the opening and closing functions; wherein the fire alarm and emergency equipment prevents the improvement of accidental power outage. When the main low-voltage circuit breaker is not in the closed position, the electric operator is inactive according to the information of the automatic switching control unit and cannot be forcibly closed to prevent the knife switch from operating alone under load. When the main low-voltage circuit breaker is in the closed position and the fire alarm and emergency equipment power status control unit is activated, a message is sent to activate the automatic switching control unit to activate the electric operator to close the knife switch. When the circuit breaker is in the closed position, the power status control unit of the fire alarm and emergency equipment does not operate. The power status control unit of the fire alarm and emergency equipment sends a message to activate the automatic switching control unit to activate the electric operator to turn on and off the knife switch. .

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