WO2022153541A1

WO2022153541A1 - Safety system for disconnector operation

Info

Publication number: WO2022153541A1
Application number: PCT/JP2021/001511
Authority: WO
Inventors: 三輪和夫
Original assignee: 株式会社テクノミライ
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2022-07-21
Also published as: JPWO2022153541A1; JP6991635B1; WO2022153554A1

Abstract

When a power-supply-side circuit from the power supply side and load-side circuits toward destinations including loads such as illumination facility/equipment, air-conditioning facility/equipment, freezing/refrigerating facility/equipment, and production facility/equipment, which operate by being supplied with electric power, and outlets serving as electrical connection portions for supplying electric power to the loads and the like are electrically connected via electric power units such as a switchboard, a distribution board, a lighting panel, a power panel, a control panel, and a junction box, which are provided with electric equipment including a main breaker and a ground-fault circuit breaker, a system according to the present invention is capable of automatically switching on and off each of the loads and automatically checking the power usage of the loads for automatic power usage calculation, thereby achieving labor saving, and further prevents the occurrence of an electrical accident leading to a fire by, for example, detecting an electrical leakage and the like caused by a loose bolt at a bolt-fastened connection portion in the electric power device, incomplete plugging of the outlet, dust adhering to the bolt-fastened connection portion or other parts, and other factors.

Description

Descon Operation Safety System

The present invention includes a power supply side electric circuit from the power supply side, a load that operates by receiving power supply such as lighting equipment / equipment, air conditioning equipment / equipment, freezing / refrigerating equipment / equipment, and production equipment / equipment, and the above-mentioned load. The load-side electric circuit that goes to the outlet, which is the electrical connection that supplies power to, etc., is a distribution board, distribution board, light board, power board, control board, junction equipped with electrical equipment such as a main breaker and a leakage breaker. When electrically connected via a power device such as a box, the load can be automatically switched ON / OFF, and the amount of power used in the load is automatically read to obtain power. Labor saving is achieved by automatically calculating the usage amount, and further, loosening of bolts at the bolt screw tightening connection part of the power device, insufficient insertion of the outlet, leakage of electricity due to dust adhesion at the bolt screw tightening connection part, etc. are detected. It relates to a system that prevents the occurrence of electrical accidents that lead to fires.

The power supply side electric circuit from the power supply side and the load side electric circuit toward the load that operates by receiving power supply such as lighting equipment / equipment, air conditioning equipment / equipment, freezing / refrigerating equipment / equipment, production equipment / equipment, etc. Electricity that leads to fire when electrically connected via power devices such as distribution boards, distribution boards, light boards, power boards, control boards, and junction boxes equipped with electrical equipment such as main breakers and leakage breakers. Various systems have been conventionally proposed to prevent the occurrence of accidents.

The applicant of the present application has also proposed a "digital electric safety control system" (Patent Document 1).

The applicant of the present application receives power supply such as the power supply side electric circuit from the power supply side, lighting equipment / equipment, air conditioning equipment / equipment, freezing / refrigerating equipment / equipment, and production equipment / equipment proposed in Patent Document 1. The load-side electric circuit toward the working load is electric through a power device such as a distribution board, a distribution board, a light board, a power board, a control board, and a junction box equipped with electric equipment such as a main breaker and a leakage breaker. The digital electric safety control system, which is a system that prevents the occurrence of electrical accidents that lead to fire when the equipment is connected, has already been put into practice under the name of Descon.

Japanese Patent No. 6732278

The inventor of the present application further improves the invention described in Patent Document 1 so that ON / OFF switching of each of a plurality of loads to which the load side electric circuit is connected can be automatically performed, and the electric power in the load. The amount of electricity used is automatically read and the amount of electricity used can be calculated automatically to save labor. Furthermore, loosening of bolts at the bolt screw tightening connection part of the power device, insufficient insertion of the outlet, bolt screw tightening connection part, etc. We have developed a system to prevent the occurrence of electric accidents that lead to fires by detecting electric power leakage due to dust adhesion.

That is, the present invention includes an electric line on the power supply side from the power supply side, a load that operates by receiving power supply such as lighting equipment / equipment, air conditioning equipment / equipment, freezing / refrigerating equipment / equipment, and production equipment / equipment. The load-side electric path to the outlet, which is the electrical connection that supplies power to the load, etc., is a distribution board, distribution board, light board, power board, control board equipped with electrical equipment such as a main breaker and a leakage breaker. , When electrically connected via a power device such as a junction box, the load can be automatically switched ON / OFF, and the amount of power used in the load is automatically read. In addition to saving labor by automatically calculating the amount of electricity used, electricity leakage due to loosening of bolts at the bolt screw tightening connection part of the power device, insufficient insertion of the outlet, dust adhesion at the bolt screw tightening connection part, etc. The purpose is to propose a descon operation safety system, which is a system that prevents the occurrence of electrical accidents that lead to fires by detecting and so on.

[1]
A power device in which a power supply side electric circuit from the power supply side and a plurality of load side electric circuits heading for a plurality of loads are connected via an electric device arranged in a housing, and a power device.
A power supply that turns on / off the power supply to the plurality of loads via the load side electric circuit at a preset timing for a plurality of power ON / OFF switches provided in each of the plurality of load side electric circuits. Power ON / OFF switching signal output means for outputting ON / OFF switching signals, and
Detecting that each of the plurality of loads is in the operating / stopped state according to the power ON / OFF switching signal, and grasping and determining the operating / stopped state of each of the plurality of loads.・ Judgment means and
A power charge calculation means that detects the power consumption of each of the plurality of loads and calculates the power usage charge charged for each of the loads based on the detected power consumption of each of the loads.
Information on the temperature, voltage value, current value, and resistance value of each of the load-side electric circuits was constantly acquired and acquired from each of the plurality of load-side electric circuit information detecting means connected to each of the plurality of load-side electric circuits. Load-side electric circuit state determining means for determining whether any of the temperature, the voltage value, the current value, and the resistance value is within a preset allowable value range for each of the load-side electric circuits. When,
Any one of the temperature, the voltage value, the current value, and the resistance value acquired from each of the load-side electric circuit information detecting means by the load-side electric circuit state determining means is previously set for each of the load-side electric circuits. When it is determined that the range of the set allowable value is out of range, the first power cutoff means for outputting a signal for cutting off the power supply via the load-side electric circuit for which the determination is made, and the first power cutoff means.
Power supply side electric circuit / electric device bolt / screw connection between power supply side electric circuit and the electric device, load side electric circuit / electric device bolt / screw between each of the plurality of load side electric lines and the electric device The bolt tightening strength value at each of the load side electric circuit, the power ON / OFF switch bolt, and the screw connection part between each of the connection part and the plurality of load side electric lines and the power ON / OFF switch is acquired and acquired. A bolt tightening state determining means for determining whether or not the bolt tightening strength value is within a preset allowable bolt tightening value range, and
When it is determined by the bolt tightening state determining means that the acquired bolt tightening strength value is out of the preset allowable bolt tightening value range, the power supply side electric circuit / electricity for which the determination is made. Outputs a signal that cuts off the power supply via the device-to-device bolt / screw connection, load-side electric circuit / electrical device-to-equipment bolt / screw connection, load-side electric circuit / power ON / OFF switch-to-bolt / screw connection. Descon operation safety system with power cutoff means.

[2]
The plurality of such loads are deployed in the building where the water supply equipment and the gas-using equipment are installed.
A water charge calculation means that detects the amount of water used in the water equipment and calculates the water charge charged to the water equipment based on the detected amount of water used.
It is further provided with a gas charge calculation means that detects the amount of gas used in the gas-using device and calculates the gas usage charge charged to the gas-using device based on the detected gas usage [1]. ] Deathcon Operation Safety System.

[3]
The power charge calculating means charges the power usage for all of the plurality of loads deployed in the building based on the total power consumption of the plurality of loads deployed in the building. Descon operation safety system of [2] to calculate the charge.

[4]
An administrator terminal and a plurality of manager terminals used by a plurality of managers who manage the load, and information on the operation / stop state of each of the plurality of loads grasped by the operation / stop state grasping / determining means. The descon operation safety system of [1] to [3], which is provided with the operation / stop state information providing means provided to the person in charge terminal used by the person in charge of managing the load.

According to the present invention, an electric line on the power supply side from the power supply side, a load that operates by receiving power supply such as lighting equipment / equipment, air conditioning equipment / equipment, freezing / refrigerating equipment / equipment, and production equipment / equipment, and the above. The load-side electric path to the outlet, which is the electrical connection that supplies power to the load, etc., is a distribution board, distribution board, light board, power board, control board equipped with electrical equipment such as a main breaker and a leakage breaker. , When electrically connected via a power device such as a junction box, the load can be automatically switched ON / OFF, and the amount of power used in the load is automatically read. In addition to saving labor by automatically calculating the amount of electricity used, electricity leakage due to loosening of bolts at the bolt screw tightening connection part of the power device, insufficient insertion of the outlet, dust adhesion at the bolt screw tightening connection part, etc. It is possible to provide a descon operation safety system, which is a system for preventing the occurrence of an electric accident leading to a fire by detecting the above.

The conceptual diagram explaining the structure of one Embodiment of the descon operation safety system which concerns on this invention. The block diagram explaining an example of the system structure of one Embodiment of the descon operation safety system which concerns on this invention. The block diagram explaining another example of the system structure of one Embodiment of the death control operation safety system which concerns on this invention. The block diagram explaining an example of the flow of collecting the tightening torque measurement data in the bolt screw tightening connection part in one Embodiment of the descon operation safety system which concerns on this invention.

<Social structure and death control safety system in the 21st century>
In the social structure of the 21st century, the values of information, transportation, economy, and culture have dramatically accelerated the fluidization of global perspectives and scale movements due to borderlessness, and especially in developed countries, the birthrate is declining and the population is aging. In the economic industry, it seems that it is becoming difficult to secure skilled engineers and skilled workers every year.

With the advanced development of IT / AI in information technology, the momentum of digitization is intensifying worldwide rather than the real analog lifestyle, and along with this, consumer trends are also digitized from real stores. The reality is that online shopping has become the mainstream of society.

With the digitalization of social infrastructure, the demand for electricity from energy sources is accelerating due to the construction and expansion of information centers, distribution centers, commercial facilities, complex facilities, etc., and the consumption of electricity and items for robots, computers, and electrical equipment. The number of electrical engineers is increasing, and the shortage of human resources is progressing. ..

<Labor saving by automating power ON / OFF of electrical equipment by Descon Operation Safety System>
Lighting of electric lighting equipment, which is the energy source of building equipment, air conditioning / ventilation of power equipment such as outlets, elevators, shutters, automatic doors, refrigeration / freezing equipment, process equipment for producing products, kitchen equipment, etc. and distribution centers For example, the work of turning on the power at the start, opening, and starting of work, and the work of turning off the power at the end of work, closing, and finishing of work, such as the transportation and storage of goods, the power supply of goods delivery equipment, and the power supply of computers, have been conventionally performed by electrical engineers. Or it seems that the administrator is responding.

In this case, for example, a large-scale commercial facility has a large area and has 3 to 4 floors, and preparatory work before opening, 60 minutes before opening, 30 minutes before opening, lighting, operation of air conditioning and ventilation equipment, It is necessary to turn on the power for each area, kitchen work room and number of floors even on the same floor as the customer elevator 10 minutes before the store closes, and it is human management to check whether the above power-on equipment is operating normally. It is necessary to check with a control board etc. by visual inspection on site.

At the start and end of work at distribution centers, etc., it is necessary to turn on the power of lighting, air conditioning, ventilation, conveyors, picking, storage, lifting lifters, etc., and to turn off the power at the end. In addition, it seems necessary for factories that operate 24 hours a day to confirm whether or not the power supply of the relevant equipment is normal.

In the Descon Operation Safety System, the opening and opening hours of the relevant building are assigned to the server device consisting of the computers that make up this system, for example, by floor, area, room, equipment, etc. The operating time, closing time, closing time, etc. of the system are input and stored in the program in advance, and the magnets of the relevant equipment installed on the above-mentioned floor, area, room, equipment, etc., for example, on the distribution board and control board. The power is turned on by a switch or a computer switch, and the corresponding distribution board and control board are operated, enabling system operation that does not require human work.

When the building is closed or closed, the distribution board, the magnet switch installed on the control panel, or the descon switch is turned off, and human operations are required to turn off the lights, stop the equipment, close the shutter, etc. It is a system operation that does not.

In the Descon Operation Safety System, the equipment is lit, and the equipment is operated by skilled engineers or managers by floor, area, room, etc. for air conditioning / ventilation, elevators, shutters, manufacturing process, and transportation. , Picking, storage lifter, etc. had to be visually checked on site or on the control panel, etc., which required considerable labor and securing the necessary personnel, but the lighting of the electric lighting equipment was turned on and off. With regard to the outage of equipment, the program can detect, collate, and determine whether the equipment is operating normally or not according to the program for the set time, floor, area, room, and so on.

In the Descon Operation Safety System, voices, images, and numerical values are sent to the PCs, tablets, and smartphones of the parties concerned to determine whether the above-mentioned lighting equipment is turned on and off and the operating and stopped states of the power equipment are normal or abnormal. Is fully automatic and can be judged and controlled so that the status of building equipment can be remotely monitored and confirmed. In the Descon Operation Safety System, digital cameras are installed on the power receiving / transforming equipment, distribution board, distribution board, or each equipment, and on the specified floor, area, place, room, position, etc., and at a predetermined time and when necessary. Arbitrarily, it is a system that can be judged and controlled so that the parties concerned can remotely monitor and confirm the status fully automatically.

In the Descon Operation Safety System, a digital camera is installed in a predetermined place, and whether or not the power ON / OFF of each of the above equipments is operating normally according to the program is voiced to the personal computers, tablets, and smartphones of the persons concerned. , You can send images, check remote monitoring, and record.

<Meter reading of electricity, gas, and water usage of utility bills by the Descon Operation Safety System, calculation of usage fees, and billing to each department and business partner>
In the Descon Operation Safety System, the server device consisting of the computers that make up this system is used for the amount of electricity, gas, and water consumed by the floor, area, room, equipment, etc. of the building, as well as by business partners and departments. Meter reading and unit price, charge, consumption tax, etc. are calculated, and the office, department, business partner and headquarters computer, tablet, smartphone of the relevant building, tenant, business partner, etc. Images and numerical values can be transmitted and linked to a printer, for example, the billing amount can be calculated and created based on the usage amount at the end of the month, printed by the linked printer of the other party, and billed at the beginning of the month.

In the Descon Operation Safety System, the meter reading power amount kW / h and unit price of the electricity meter, the meter reading gas amount of the microcomputer gas meter etc. ㎥ / h and the unit price, the meter reading water volume of the electronic water meter etc. ㎥ / h There are programs for consumption tax and the unit price stipulated by law, the usage amount of the building, the unit price, the usage amount by business partner, the unit price, the usage amount by department, the unit price and the consumption tax. Calculate the billing amount, add the consumption tax, and send the exact billing amount and voice, image, and numerical value to the personal computer, tablet, and smartphone, and print them with a connected printer. It is possible to read the meter by floor, area, room, equipment, etc. of the amount and water volume, calculate the invoice, create the documents, and save all the human and mailing costs that were invoiced by mail. That is, as described above, electronic information can be delivered to the other party's personal computer, tablet, or smartphone by processing using a computer and network using a computer program, and can be printed in the form of an invoice. By storing it as information, it is possible to save labor and mailing costs, which were conventionally invoiced by meter reading, invoice calculation, document creation, and mailing.

In the Descon Operation Safety System, the amount of electricity, gas, and water for each of the buildings, tenants, business partners, departments, facilities, etc. mentioned above are read, and the usage amount, unit price, and consumption tax billing amount for each item are determined. It is automatically sent at the time when it is sent, and voice, image, and numerical value are sent to the related party's PC, tablet, and smartphone by VPN communication to confirm whether the other party has received and confirmed the billed usage amount and billed amount, and the related party. Is received, it features a means of functioning to send a confirmed notification to the sender. Receiving parties can check the state of meter reading by floor, area, room, equipment, etc. with image information via a digital camera installed at a predetermined position in the vicinity of these. System.

If the other party does not confirm the usage amount, unit price, amount, and consumption tax charge amount for utility bills, a control means for transmitting voice, image, and numerical value to the other party for confirmation of the billed amount with a personal computer, tablet, or smartphone It can be configured as provided.

The Descon Operation Safety System is a system that allows the other party who receives the total amount of usage, unit price, amount, and consumption tax to print automatically with a printer.

In the Descon Operation Safety System, a digital camera is installed on each meter reading meter and images are recorded to determine whether the meter reading power, gas, and water meter reading meters are operating normally. It is a system that can send voice and images to personal computers, tablets, and smartphones for remote monitoring confirmation and recording.

<Characteristics of Death Control Safety System>
Information centers, distribution centers, advanced complex buildings due to the global expansion of socio-economy and the development of information and communications, transportation, etc., to speed up the flow of people and goods, and the expansion of advanced fluidization of digital systems from the real world. , Commercial facilities, factories, offices, high-rise condominiums, hospitals, advanced medical buildings, etc., people's lifestyles are becoming more digital, and the demand for electricity as an energy source for building facilities and items such as electrical equipment and appliances are dramatically reduced. It seems that the consumption of electric power is increasing and proportional to the industrial structure, and the number of burning and electric fire accidents is increasing due to the factors of electrical equipment.

One of the direct causes of electric fire accidents is the bolts, connectors, screws, etc. of high-voltage power receiving and transforming equipment and connection fittings for electrical equipment such as distribution boards, distribution boards, control boards and trunk lines, branch trunk lines, and wiring of low-voltage equipment. Due to factors such as tightening, aging deterioration of the insertion part and terminal outlet, switch insertion fittings, metal fatigue and damage to the insulation of the main line and branch main line wiring, tracking phenomenon, and accidents of products and electrical equipment products. It appears to be.

Among the factors of the above-mentioned electric fire accident and burning accident, the occurrence rate is high, it is structurally difficult to find due to the cabinet that is always concealed, and it is generally scattered from about 4 to 6 years, for example, 5 to 7 years or more. If the same time elapses, the incidence will increase. For example, power distribution boards, distribution boards, control boards, terminal outlets, and bolts, connectors, taps, screws, etc. of electrical connection fittings for electrical products are expanded due to heat generation when the power is turned on / off or when the electrical connection equipment is energized, and the power supply. The temperature at OFF drops and loosening due to shrinkage of the metal fittings, separation distances such as gaps occur, and current arcs, tracking phenomena, etc. occur due to loosening, gaps, separation distances, etc., and the corresponding metal fittings due to melting of the insulating material. Heats up and becomes high temperature, and the distribution board, distribution board, control board, terminal outlet, etc. and the main line, branch main line, wiring, etc. burn, which is thought to be the cause of an electric fire accident.

The dust adhering to the switchboard, distribution board, control panel, terminal outlet, etc., tracking phenomenon, etc. cause the separation of the insulation functions of (+) and (-) of the electrodes to energize (+) and (-). It is generally considered that the connection fittings of the dust-attached part ignite due to electric leakage, the relevant part generates heat and becomes high temperature, and the insulating materials such as the trunk line, branch trunk line, and wiring melt and burn to cause a fire. ..

In the Descon Operation Safety System, the current, voltage, and temperature of the above-mentioned switchboard, distribution board, control board, and loose connection fittings such as terminal outlet bolts, connectors, and screws are the normal current value, voltage value, and so on. The temperature value is input and stored, and the connection fittings are loosened, a separation distance is generated due to a gap, etc., dust adheres to the relevant part, the insulation function of the (+) and (-) electrodes deteriorates, and the current is turned on. For example, if the current value or voltage value is prominent, or if an abnormal value such as a temperature rise is detected, voice, image, or value is transmitted to the relevant personal computer, tablet, or smartphone, and the corresponding circuit is set to a magnet switch, descon switch, or descon. It is possible to control to automatically shut off with a breaker, current leakage breaker, etc.

In the Descon Operation Safety System, for metal connections of the trunk line of high-voltage power receiving and transforming equipment in buildings, for example, bolt diameters such as steel bolts M14 to M24 are generally used, and the strength classification of the torque of the maximum tightening strength of the bolt is M4 to M24 etc. are general strength categories.

For high-voltage power receiving and transforming equipment, for example, in the case of metal-connected steel bolts M16, the reference tightening torque of the bolts is about 180 Nm in the case of strength classification 6.8, and the strength values are loose bolts, gaps, etc. There is no separation distance and it is within the permissible value.

For example, in the case of hexagon bolt diameter M8, the reference tightening torque of the strength category 6.8 is about 5.19 Nm for the steel bolts of the distribution board and distribution board of low-pressure equipment, and the value of the strength is the looseness of the bolt and the gap. There is no separation distance such as, and it is within the permissible value.

For the screws for metal connection of the light board, power board, control board, terminal outlet branch trunk line and wiring of low-pressure equipment, for example, screw diameters of about M4 to M24 are mainly installed, and reference tightening of M4 strength classification 6.8. The torque is about 2.57 Nm, and the strength value is generally within the allowable value of about ± 5 to ± 10% for the tolerance of tightening torque such as loosening of bolts and screws and gaps.

In the Descon Operation Safety System, the above-mentioned high-voltage power receiving and transforming equipment, low-voltage distribution board, distribution board, control board, terminal outlet current value, voltage value, temperature and insulation resistance measurement value when the power is turned off are used as normal reference values. It is equipped with a judgment means for inputting and memorizing.

Combustible materials such as paper, cloth, dust, dust, etc. Due to poor insulation, gaps in the connection, looseness, disconnection of the branch trunk wiring, damage to the cord insulation member, etc., the temperature of the connection wiring between the distribution board, distribution board, control board, etc., the terminal outlet, and the electric appliance rises. It detects the leakage current and detects the current meter and temperature sensor installed in the distribution board, distribution board, and control board, and detects the above-mentioned monthly from January to December, 24 hours when the business is energized and when the power is turned off. If the current value and temperature for each hour are higher than the values stored in advance, and the insulation resistance value when the power is turned off and the normal value of insulation resistance are lower than the values stored in advance, the leakage current is generated due to the decrease in insulation resistance. , Equipped with means to judge.

For example, the insulation resistance of low-voltage indoor wiring is divided into an insulation resistance value of 0.1 MΩ and a working voltage of an electric circuit of 300 V or less when the working voltage of the electric circuit is divided into 300 V or less and the voltage to ground is 150 V or less. When the voltage exceeds 150 V, the insulation resistance value is 0.2 MΩ, and when the voltage to ground exceeds 300 V, the insulation resistance value is 0.4 MΩ.

If these insulation resistance values are set to normal values that can be tolerated and the detected insulation resistance value is lower than these values, it is judged that a leakage situation has occurred, and the administrator using the administrator. It is possible to notify the terminal and the person in charge terminal used by the person in charge.

If a leakage current occurs, it is equipped with a control means that transmits voice, images, and numerical values to the PCs, tablets, and smartphones of the parties concerned in real time, and the corresponding circuit magnet switch, descon switch, or descon breaker automatically shuts off.

If the temperature of the distribution board, distribution board, control board trunk line, branch trunk line connection fittings or terminal outlets and electrical appliances rises, voice, images and numerical values will be transmitted in real time to the PCs, tablets and smartphones of the parties concerned. It has the means to do it.

In the Descon Operation Safety System, it is possible to control to automatically shut off the above-mentioned leakage current, the corresponding distribution board of the temperature rise, the distribution board, the magnet switch of the control panel, the Descon switch, the Descon breaker, and the like.

In the Descon Operation Safety System, the reference tightening torque of the above-mentioned high-voltage power receiving and transforming equipment, for example, in the case of metal-connected steel bolts M16, in strength classification 6.8 is about 180 Nm, and that of the power distribution board and distribution board of low-pressure equipment. In the case of hexagon bolt diameter M8, the reference tightening torque of strength classification 6.8 is input and memorized, for example, by the person concerned, by building, by floor, during daily, weekly, monthly, and annual inspections. Enter the numerical values for each area, room, equipment, etc. and collate them with the memorized values. For example, if the tightening torque decreases and changes, the corresponding building, floor, area, room, equipment, etc. Separately, it is equipped with a means for transmitting voice, images, and numerical values in real time to the personal computers, tablets, and smartphones of the parties concerned.

The current value, voltage value, temperature and insulation resistance measurement value when the power is off are stored, and the current value, voltage value, temperature and insulation resistance measurement value when the power is off are stored. If it is a numerical value, the corresponding distribution board, distribution board, control board and the corresponding circuit magnet switch, descon switch, descon breaker, etc. are provided with control means for automatically shutting off.

The reference tightening torque of the strength classification 6.8 of the above-mentioned high-pressure power receiving and transforming equipment, for example, in the case of a metal-connected steel bolt M16, is about 180 Nm, and in the case of a hexagon bolt diameter M8 of a low-voltage equipment distribution board or distribution board. Reference for strength classification 6.8 Tightening torque of about 5.19 Nm The system detects and collates if the tightening torque decreases and changes during daily, weekly, monthly, and annual inspections. It features a means of judging abnormal deterioration, and is equipped with a means of transmitting voice, images, and numerical values in real time to the personal computers, tablets, and smartphones of the parties concerned.

If the tightening torque value is decreasing and changing, for example, a magnet switch, a descon switch, or a descon breaker of the corresponding circuit is provided with a control means for automatically shutting off.

The reference tightening torque of the strength classification 6.8 of the above high-voltage power receiving and transforming equipment, for example, in the case of metal-connected steel bolt M16, is about 180 Nm, and in the case of the hexagon bolt diameter M8 of the low-voltage equipment distribution board and distribution board. The reference tightening torque of strength category 6.8 is about 5.19 Nm, and the screws of connecting equipment such as distribution boards, distribution boards, control boards, and terminal outlets of low-pressure equipment are usually about M4 to M20 in diameter. Is used, and the reference tightening torque of strength category 6.8 is about 2.57 to 357 Nm, and the value of the strength is the value that there is no looseness of bolts, screws, connectors, etc., and the separation distance such as gaps. The system memorizes the value and loosens it, and has a means for memorizing that the value is within the permissible value without a separation distance such as a gap.

The taps of the electrical connection fittings for the main line and branch main line wiring, the gaps between the connectors, and the separation distance are normal clearances that do not generate, for example, electrical sparks with a diameter of about 1 M / M or less. For example, the current value, voltage value, temperature and insulation resistance measurement value of the circuit changeover switch magnet switch or descon switch or descon breaker when the power is off, for example, in the morning and afternoon during business hours, and at night when the store is closed. Midnight, early morning, hourly from 1:00 to 24:00, and monthly current, voltage, temperature, and insulation resistance measurements when the power is off from April to March in spring, summer, autumn, and winter. Input and memorize the numerical values, and the current value, from the numerical values memorized in the daily, weekly, monthly, and annual inspections, the current value, voltage value, temperature, and insulation resistance measurement value when the power is turned off. If the voltage value, temperature, etc. are the numerical values of the protrusion increase and the insulation resistance value decrease, the means for transmitting the voice, the image, and the numerical value to the personal computers, tablets, and smartphones of the persons concerned in real time is provided.

In the Descon Operation Safety System, the values when tightening bolts, screws, connectors, etc. of distribution boards, distribution boards, control boards, junction boxes, outlets, electric appliances, process manufacturing machines, transport equipment, etc., insulation resistance values and the above, Leakage current will occur if a decrease in insulation resistance value is detected when the power is turned on and off before and after operation of distribution boards, distribution boards, control boards, junction boxes, outlets, electric appliances, process manufacturing machines, transport equipment, etc. It is equipped with a means to determine that it is present and send voice, images, and numerical values to the personal computers, tablets, and smartphones of the parties concerned in real time.

The insulation resistance value is, for example, 0.1 MΩ when the voltage to ground is 150 V or less at 300 V or less of the low voltage circuit, 0.2 MΩ or more when the voltage to ground exceeds 150 V, 0.4 MΩ or the like when the voltage exceeds 300 V, etc. And. If the insulation resistance is equal to or less than an allowable value, the circuit is characterized by, for example, a control means that automatically shuts off a magnet switch, a descon switch, or a descon breaker. Further, the high voltage circuit 600V or more is characterized by means for determining 6MΩ or more as an allowable value.

The Descon Operation Safety System installs a digital camera on the above-mentioned distribution board, distribution board, control board, etc. and the inspector's helmet, etc., and records images to transfer audio and images to the personal computers, tablets, and smartphones of the parties concerned. It is a system that can send, remotely monitor, check, and record.

The Descon Operation Safety System inputs and stores the predetermined current value, voltage value, temperature, and insulation resistance value of each of the above equipment, and insulates the detected current value, voltage value, temperature, and before and after the opening of the store and before and after the start of work when the power is turned off. It is equipped with a means for determining whether each facility is operating normally or abnormal based on the resistance value, and transmitting voice, images, and numerical values to the personal computers, tablets, and smartphones of the persons concerned on a regular basis and in the event of an abnormality.

<Embodiment of Descon Operation Safety System>
An embodiment of the Descon Operation Safety System will be described with reference to FIG.

The descon operation safety system shown in FIG. 1 includes a power device 1, a power ON / OFF switching signal output means 8, an operation / stop state grasping / determining means 9, a power charge calculating means 10, and a load-side electric circuit state determining means. 11, the bolt tightening state determination means 12, the operation / stop state information providing means 13, the first power cutoff means 14, the second power cutoff means 15, the water usage charge calculation means 16, and the gas usage charge. It is configured to include the calculation means 17.

In the power device 1, the power supply side electric circuit 3 from the power supply side and the load side electric circuit 4 toward the load are electrically connected via an electric device 2 provided in the housing. For example, various power receiving and transforming equipment, switchboards, distribution boards, light boards, power boards, control boards, remote control device boards, distribution boards and distribution boards, etc. Box etc.

The electric device 2 is provided in the housing constituting the power device 1 described above, and provides an electrical connection between the power supply side electric circuit 3 from the power supply side and the load side electric circuit 4 toward the load. For example, a main breaker, an electric leakage breaker, and the like can be mentioned.

The load that the load-side electric line 4 is heading is a load that operates by receiving power supply, such as lighting equipment / equipment, air conditioning equipment / equipment, freezing / refrigerating equipment / equipment, and production equipment / equipment. Motors, elevators, air conditioning equipment, ventilation equipment, lighting equipment, refrigeration / freezing cases, refrigerators / freezers, measuring instruments, computer equipment, surveillance cameras, medical equipment, communication equipment, etc. Equipment / equipment, electric power / electric equipment / equipment that is deployed and used inside and outside buildings, etc., and electric power / equipment that is deployed and used in vehicles / transportation means such as trains / cars / aircraft / ships. Includes electrical equipment, communication equipment, equipment, etc.

A digital camera 41 that shoots the power device 1 at all times or when a shooting start instruction input is received is provided in the vicinity of the power device 1.

The power ON / OFF switching signal output means 8 is displayed as a magnet switch in FIG. 2 and a magnet switch or a descon switch in FIG. A process of outputting a power ON / OFF switching signal for turning ON / OFF the power supply via the load side electric circuit 4 for the plurality of loads at a timing preset for the switch is performed.

For example, the opening and opening hours of a building managed by the Descon Operation Safety System, etc., can be set on the device displayed as a cloud server in FIGS. Data such as lighting time of electric lighting equipment, operating time of equipment, etc. are input and stored for each, area, room, equipment, etc., and data such as closing time, closing time, etc. are input and stored, and the above floors and areas are used. By turning the power on or off by using the power ON / OFF switch (magnet switch, descon switch, etc.) of the relevant equipment installed on the distribution board or control panel, for example, by room or equipment. By operating or stopping the distribution panel and control panel, management that does not require human work is possible.

The operation / stop state grasping / determining means 9 detects that each of the plurality of loads is in the operation / stop state according to the power ON / OFF switching signal, and detects the operation / stop state of each of the plurality of loads. Is grasped and judged.

The operating status of each of the loads to which each of the load-side electric circuits 4 is connected (for example, the lamp load (1F lighting), the lamp load (1F outlet), the lamp load (1F air conditioner), etc. in FIG. 3) is detected. Each load status (operating status or stopped status) is applied to the device displayed as a cloud server in FIGS. 2 and 3 consisting of computers constituting the descon operation safety system via a wired or wireless network. It can be configured to be equipped with an operation / stop status notification means for notifying / outputting.

Based on the information (information about the operating status of each load) acquired from the operating / stopped status notification means deployed for each load, the operating / stopped status grasping / determining means 9 is used to control each of the plurality of the loads. It detects that it is in the operating / stopped state according to the power ON / OFF switching signal, and performs a process of grasping and determining the operating / stopped state of each of the plurality of loads.

For example, it is connected to a load-side electric circuit 4 in which a power ON / OFF switch (magnet switch, descon switch, etc.) for which a switching signal from OFF to ON is output by the power ON / OFF switching signal output means 8 is provided. If a signal indicating that the load is in the operating state is received from the existing load, the operating / stopped state grasping / determining means 9 determines that the load is operating normally.

On the other hand, it is connected to the load side electric circuit 4 in which the power ON / OFF switch (magnet switch, descon switch, etc.) for which the ON / OFF switching signal is output by the power ON / OFF switching signal output means 8 is provided. A power ON / OFF switch (magnet switch or descon switch) that receives a signal indicating that it is in an operating state from an existing load, or outputs a switch signal from OFF to ON by the power ON / OFF switching signal output means 8. When a signal indicating that the load is not in the operating state is received from the load connected to the load-side electric circuit 4 in which the etc.) is deployed, the operating / stopped state grasping / determining means 9 indicates that the load is operating normally. It will be judged that there is no such thing.

The operation / stop state information providing means 13 is provided by an administrator who manages a plurality of the loads to obtain information on the operation / stop states of each of the plurality of loads grasped by the operation / stop state grasping / determining means 9. The process provided to the administrator terminal 31 in use and the person in

charge terminals

32a, 32b, 32c, 32d used by the person in charge of managing the plurality of loads is performed.

The administrator terminal 31 can be configured by a personal computer or the like provided with image information display means such as a monitor. The person-in-

charge terminals

32a, 32b, 32c, and 32d can be configured by a mobile terminal such as a smartphone to which the application for system operation of the present invention is downloaded.

The operation / stop state information providing means 13 provides information on the operation / stop state of the load only when the operation / stop state grasping / determining means 9 determines that the load is not operating normally. (Information that it is not operating normally) is used by the administrator terminal 31 that manages the load and the person in charge terminal that is used by the person in charge of managing the load. The processing provided for 32a, 32b, 32c, and 32d can be performed.

In this case, a digital camera is provided in the vicinity of each load, and the image information and video information acquired by the digital camera are collected via a wired or wireless network to form a computer that constitutes a descon operation safety system. The device displayed as a cloud server in FIG. 3 is used to acquire the video information at that time of the load determined to be "not operating normally", together with the administrator terminal 31 and the person in charge terminal 32a. It can also be provided to.

The power charge calculating means 10 detects the power consumption of each of the plurality of loads, and calculates the power usage charge charged for each of the loads based on the detected power usage of each of the loads. I do.

For example, as shown in FIGS. 2 and 3, a watt hour meter is provided in each load-side electric circuit 4 that supplies power to each load, thereby detecting the amount of power used in each load and detecting the amount of power used in each load. , The device shown as a cloud server in FIGS. 2 and 3 consisting of computers constituting the descon operation safety system via a wired or wireless network, or a power meter for each load itself. By deploying it, the amount of power used in each load is detected, and it is displayed as a cloud server in FIGS. 2 and 3 consisting of computers that make up the descon operation safety system via a wired or wireless network. The device is made to acquire the power, and the power charge calculating means 10 detects the power consumption of each of the plurality of loads based on the acquired power amount, and the load is based on the detected power consumption of each of the loads. It is possible to calculate the electricity usage fee charged for each.

When the plurality of loads described above are deployed in the building, the power charge calculating means 10 is deployed in the building based on the total power consumption of the plurality of loads deployed in the building. It is also possible to perform a process of calculating the power usage charge charged for the entire plurality of the above-mentioned loads.

That is, in the descon operation safety system of this embodiment, the server device consisting of the computers constituting this system is loaded with multiple loads by floor, area, room, equipment, etc. and the business partner. Calculate the power usage fee and consumption tax from the meter reading result of the amount of power consumed by each department and the unit price of the power fee, and assign the relevant building, tenant, business partner, etc. to the relevant building's office, department, business partner, etc. The electric power charge for each can be calculated by the electric power charge calculating means 10. The power charge calculated by the power charge calculation means 10 is transmitted to the administrator terminal 31 (computer, tablet, smartphone, etc. of the headquarters) of the business partner, etc. via a wired or wireless network, and the descon operation safety of this embodiment. The system can be in the form of providing information words from a server device consisting of computers constituting this system. In this case, it can be provided as electronic information that can be printed in the form of an invoice on the administrator terminal 31 (personal computer, tablet, smartphone, etc. of the headquarters) of the business partner or the like.

The load-side electric circuit state determining means 11 is a plurality of load-side electric circuit information detecting means (wire temperature sensor 6 illustrated in FIG. 1, voltage / current / resistance measuring instrument) connected to each of the plurality of load-side electric circuits 4. Information on each of the temperature, voltage value, current value, and resistance value in each of the load-side electric circuits 4 is constantly acquired from each of 5), and any one of the acquired temperature, voltage value, current value, and resistance value is obtained. Is performed to determine whether or not is within the range of the allowable value set in advance for each of the load-side electric circuits 4.

The first power cutoff means 14 has any one of the temperature, the voltage value, the current value, and the resistance value acquired from each of the load side electric circuit information detecting means by the load side electric circuit state determining means 11. When it is determined that the load side electric circuit 4 is out of the preset allowable value range, a process of outputting a signal for cutting off the power supply through the load side electric circuit 4 for which the determination is made is performed.

The allowable electric wire temperature value, voltage value, current value, and resistance value are set in advance according to each load to which the load side electric circuit 4 is connected. For example, the permissible electric wire temperature value, voltage value, current value, and resistance value differ depending on whether the load is an air conditioner, a prime mover, a precision device such as a computer, a medical device, or the like. .. If this allowable value is exceeded, equipment damage or malfunction may occur. Therefore, the load-side electric circuit monitoring temperature, voltage, current, and resistance value are set in advance according to the load to which the load-side electric circuit 4 is connected, and comparison with these is performed.

Insulation failure of combustible materials such as paper, cloth, dust, dust, etc., and gaps in the connection part of the above-mentioned distribution board, distribution board, control board trunk line, branch trunk line connection fittings or terminal outlets and electrical appliances In the event of loosening, disconnection of the branch trunk wiring, damage to the cord insulation member, etc., the load is preset (that is, allowed) according to the load to which the load side electric circuit 4 is connected. Side electric circuit monitoring A situation may occur that deviates from the range of temperature, voltage, current, and resistance value.

For example, the resistance value among the wire temperature value, voltage value, current value, and resistance value allowed according to the load to which the load side electric circuit 4 is connected depends on the load to which the load side electric circuit 4 is connected. If the allowable insulation resistance normal value is lower than the pre-stored insulation resistance normal value when the load is turned off, the load-side electric circuit state determination means is used as a leakage current. 11 determines, and the first power cutoff means 14 outputs a signal to switch to OFF to the ON / OFF changeover switch provided in the load side electric circuit 4, and the power supply is cut off.

As a result, the above-mentioned distribution board, distribution board, control board trunk line, branch trunk line connection fittings or terminal outlets and electrical appliances are connected to combustible materials such as paper, cloth, dust, dust, etc. due to poor insulation of the electrical appliances. It is possible to prevent such a situation from occurring when there is a possibility that a gap or looseness of the portion, a disconnection of the branch trunk line wiring, a breakage of the cord insulating member, or the like may occur.

The bolt tightening state determining means 12 is used between the power supply side electric line 3 and the electric device 2 at the power supply side electric line / between electric device bolt / screw connection portions, and between each of the plurality of load side electric lines 4 and the electric device 2. Bolt tightening at each of the load side electric line / power ON / OFF switch bolt / screw connection part, the load side electric line / power ON / OFF switch bolt / screw connection part between each of the multiple load side electric lines 4 and the power ON / OFF switch. A process is performed in which the attached strength value is acquired and it is determined whether or not the acquired bolt tightening strength value is within the preset allowable bolt tightening value range.

When the bolt tightening state determining means 13 determines that the acquired bolt tightening strength value is out of the preset allowable bolt tightening value range, the second power shutoff means 15 makes the determination. Power is supplied via the power supply side electric circuit / electric device bolt / screw connection, load side electric circuit / electric device bolt / screw connection, load side electric path / power ON / OFF switch bolt / screw connection. Performs processing to output a signal to be cut off.

The bolt tightening strength values for each of the power supply side electric circuit / electric device bolt / screw connection, load side electric circuit / electric device bolt / screw connection, and load side electric circuit / power ON / OFF switch bolt / screw connection are as follows. As shown in FIG. 4, the measurement is performed once a day, once a week, once a month, etc. using a torque wrench or the like.

The bolt tightening strength value obtained by the measurement is acquired by a device displayed as a cloud server in FIGS. 2 and 3 consisting of computers constituting the descon operation safety system via a wired or wireless network. The bolt tightening state determining means 12 determines whether or not the bolt / screw connection portion is within the preset allowable tightening strength range. For example, the measured tightening strength is higher than the allowable tightening strength, for example. If it is reduced by more than -10%, it is judged that the tightening strength is insufficient. In this way, the signal for cutting off the power supply via the electric device and the power ON / OFF switch in which the bolt / screw connection portion determined to be insufficient in tightening strength exists is turned ON by the second power cutoff means 15. Output to the / OFF selector switch.

In the present embodiment, the above-mentioned plurality of loads may be deployed in a building in which a water supply facility and a gas user device are deployed.

In such a case, the water charge calculation means 16 and the gas usage charge calculation means 17 can be further deployed.

The water charge calculation means 16 detects the amount of water used in the water equipment and performs a process of calculating the water charge charged to the water equipment based on the detected amount of water used.

The gas usage charge calculation means 17 detects the gas usage amount in the gas usage device and performs a process of calculating the gas usage charge charged to the gas usage equipment based on the detected gas usage amount.

For example, when a water supply facility is installed in a building in which a plurality of loads are deployed as described above, the water service meter (electronic water meter for meter reading in FIG. 3) deployed for the water service facility is wired or wired. Information on the amount of water used by the water supply facility is obtained wirelessly by the device displayed as the cloud server in FIGS. 2 and 3 consisting of the computers that make up the descon operation safety system, and is based on the unit price of the water charge. Then, the water charge calculation means 16 detects the amount of water used in the water equipment and calculates the water charge charged to the water equipment based on the detected amount of water used.

In addition, when a gas-using device is deployed in the building where a plurality of loads are deployed as described above, the gas meter (microcomputer gas meter for meter reading in FIG. 3) deployed for the gas-using device is wired or wireless. Then, the information on the amount of gas used by the gas-using device is acquired by the device displayed as the cloud server in FIGS. 2 and 3 consisting of the computers constituting the descon operation safety system, and the unit price of the gas usage fee is calculated. Based on this, the gas usage charge calculating means 17 detects the gas usage amount in the gas usage device and calculates the gas usage fee charged to the gas usage device based on the detected gas usage amount. I do.

Similar to the processing and operation performed by the power charge calculation means 10 described above, in the descon operation safety system of this embodiment, the server device composed of the computers constituting this system is deployed in a building in which a plurality of loads are deployed. Water supply equipment, gas usage equipment, floor, area, room, equipment, etc. and water consumption by business partner, department, etc. Meter reading result, water usage fee, gas usage fee unit price Calculate the water usage fee, gas usage fee, consumption tax from, and give the relevant building, tenant, business partner, etc. the water usage fee, gas usage fee for each office, department, and business partner of the building. It can be calculated by the calculation means 16 and the gas usage charge calculation means 17. The water usage charges and gas usage charges calculated by the water charge calculation means 16 and the gas usage charge calculation means 17 are wired or wireless to the administrator terminal 31 (computer, tablet, smartphone, etc. of the headquarters) of the business partner, etc. In the descon operation safety system of this embodiment via a network, information words can be provided from a server device composed of computers constituting this system. In this case, it can be provided as electronic information that can be printed in the form of an invoice on the administrator terminal 31 (personal computer, tablet, smartphone, etc. of the headquarters) of the business partner or the like.

The descon operation safety system 50 described above as an example of the configuration can be configured from a computer. In this case, although not shown, a CPU, an operating system, and various computers that control the operating system and a predetermined computer program installed or downloaded so as to realize various functions of the system of this embodiment. ROM as a storage unit that stores programs, etc., and stores data necessary for the CPU to execute processing for each control, and stores data necessary for the CPU to execute processing, depending on the CPU. It is equipped with a RAM, a hard disk, an information input / output unit such as a communication interface, which is also used as a work area where information can be appropriately rewritten, and is connected by a necessary bus line.

In the above, a server computer deployed at a location distant from the power device 1, for example, a server computer constructed on the cloud is a plurality of load-side electric line information detecting means (FIG.) deployed in the power device 1. Information on the temperature, voltage value, current value, and resistance value of each of the electric wire temperature sensor 6 and the voltage / current / resistance measuring instrument 5) shown in 1 via a wired or wireless network in each of the load-side electric lines 4. As shown in Fig. 4, the power supply side electric line is measured once a day, once a week, once a month, etc. using a torque wrench or the like. Wired or wireless information on bolt tightening strength values at each of the electrical equipment bolt / screw connection, load side electric line / electrical equipment bolt / screw connection, load side electric line / power ON / OFF switch bolt / screw connection It can be an embodiment of acquisition via the network of.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and can be variously modified within the technical scope grasped from the description of the claims.

The targets of the Descon Operation Safety System are, for example, buildings, trains, ships, cars, airplanes, elevators, factories, laboratories, power plants, substations, computer power supplies, motors, conveyors, production equipment, robots, air conditioning, ventilation, etc. Lighting, refrigeration / freezing cases, refrigerators / freezers, solar power generation, wind power generation, rockets, storage batteries, etc. and power supplies, transmission lines, trunk lines, wiring, connecting equipment, measuring instruments, etc. All buildings and equipment that use all power , Equipment, equipment, etc.

Therefore, it is thought that labor saving and economic effect will be great by introducing the following various types of targets of the Descon Operation Safety System.

Claims

A power device in which a power supply side electric circuit from the power supply side and a plurality of load side electric circuits heading for a plurality of loads are connected via an electric device arranged in a housing, and a power device.
A power supply that turns on / off the power supply to the plurality of loads via the load side electric circuit at a preset timing for a plurality of power ON / OFF switches provided in each of the plurality of load side electric circuits. Power ON / OFF switching signal output means for outputting ON / OFF switching signals, and
Detecting that each of the plurality of loads is in the operating / stopped state according to the power ON / OFF switching signal, and grasping and determining the operating / stopped state of each of the plurality of loads.・ Judgment means and
A power charge calculation means that detects the power consumption of each of the plurality of loads and calculates the power usage charge charged for each of the loads based on the detected power consumption of each of the loads.
Information on the temperature, voltage value, current value, and resistance value of each of the load-side electric circuits was constantly acquired and acquired from each of the plurality of load-side electric circuit information detecting means connected to each of the plurality of load-side electric circuits. Load-side electric circuit state determining means for determining whether any of the temperature, the voltage value, the current value, and the resistance value is within a preset allowable value range for each of the load-side electric circuits. When,
Any one of the temperature, the voltage value, the current value, and the resistance value acquired from each of the load-side electric circuit information detecting means by the load-side electric circuit state determining means is previously set for each of the load-side electric circuits. When it is determined that the range of the set allowable value is out of range, the first power cutoff means for outputting a signal for cutting off the power supply via the load-side electric circuit for which the determination is made, and the first power cutoff means.
Power supply side electric circuit / electric device bolt / screw connection between power supply side electric circuit and the electric device, load side electric circuit / electric device bolt / screw between each of the plurality of load side electric lines and the electric device The bolt tightening strength value at each of the load side electric circuit, the power ON / OFF switch bolt, and the screw connection part between each of the connection part and the plurality of load side electric lines and the power ON / OFF switch is acquired and acquired. A bolt tightening state determining means for determining whether or not the bolt tightening strength value is within a preset allowable bolt tightening value range, and
When it is determined by the bolt tightening state determining means that the acquired bolt tightening strength value is out of the preset allowable bolt tightening value range, the power supply side electric circuit / electricity for which the determination is made. Outputs a signal that cuts off the power supply via the device-to-device bolt / screw connection, load-side electric circuit / electrical device-to-equipment bolt / screw connection, load-side electric circuit / power ON / OFF switch-to-bolt / screw connection. Descon operation safety system with power cutoff means.
The plurality of such loads are deployed in the building where the water supply equipment and the gas-using equipment are installed.
A water charge calculation means that detects the amount of water used in the water equipment and calculates the water charge charged to the water equipment based on the detected amount of water used.
A claim further comprising a gas charge calculating means for detecting the amount of gas used in the gas-using device and calculating the gas-using charge charged to the gas-using equipment based on the detected amount of gas used. The descon operation safety system described in 1.
The power charge calculating means charges the power usage for all of the plurality of loads deployed in the building based on the total power usage of the plurality of loads deployed in the building. The descon operation safety system according to claim 2, which calculates the charge.
An administrator terminal and a plurality of manager terminals using information on the operation / stop state of each of the plurality of loads grasped by the operation / stop state grasping / determining means by the administrator who manages the plurality of loads. The descon operation safety system according to any one of claims 1 to 3, further comprising an operation / stop state information providing means provided to the person in charge terminal used by the person in charge of managing the load. ..