Management of temporary electricity use

Draw electrical distribution diagrams, count the number of electrical equipment on site, electrician attendance records, etc., and think about it yourself.

The main thing is to pay attention to some safety regulations. You can check the relevant information online, there is a lot.

Temporary Power Use Management Rules Temporary Power Use Management Rules 1. Measures for safe use of electricity: ⑴Strictly abide by and implement the JGJ46-2005 temporary electricity safety technical specifications for construction sites. ⑵The on-site power distribution adopts the TN-S power supply system. The working neutral line N and the special protection line PE are strictly separated at the power supply. There is no current on the special protection line. This line is specially designed to take over the faulty wire to ensure that its protection device operates. The PE line is not allowed to be disconnected. Repeat the grounding of the PE wire at the ends of the 1# and 2# sub-boxes. ⑶Three-level power distribution and two-level protection are implemented on site. ⑷The purchase of electrical equipment must be products recommended by the Ministry of Economic Affairs and the Province, and the quality must be strictly controlled. The five-core cables are from Cangzhou Cable, and the distribution boxes are from Sijian Machinery Factory. ⑸Before each electrical component in the power supply system is put into use, it must be tested and qualified before it can be put into use. ⑹ After the power line is put into use, the working performance of the leakage protection must be tested regularly. Check once a month. If any problems are found, deal with them immediately and fill in the test form carefully and truthfully. ⑺The cables are laid underground with a depth of not less than 0.6 meters. 50mm of fine sand is spread up, down, left and right, and then covered with bricks for protection. ⑻The setting of electrical equipment should meet the following requirements: ①There should be one machine and one gate in the switch box. Each electrical equipment should have its own switch box. It is strictly forbidden to use one switch to directly control two or more electrical equipment. ②The main distribution box should be located close to the power source, and the distribution box should be installed in areas where electrical equipment or loads are relatively concentrated. The distance between the distribution box and the switch box should not exceed 30 meters, and the horizontal distance between the switch box and the fixed electrical equipment it controls should not exceed 5 meters. ③There should be enough space around the distribution box and switch box for two people to work at the same time, and no items that would hinder operation or maintenance should be piled around them. ④The location of the distribution box should be reasonably set, and a protective shed should be set up. A 1.5-meter-high iron fence should be set up around it. The switch box and door lock should be handled by a dedicated person, and idle personnel are strictly prohibited from using it. ⑼Protection of electrical equipment: ①Projects under construction are not allowed to be constructed under high-voltage or low-voltage lines, and work sheds are not allowed to be built, living facilities are built, or components, racks, materials and other debris are piled up. ②The minimum vertical distance between motor vehicle lanes and external power overhead lines at the construction site is six meters. ⑽Operators and maintenance personnel of electrical equipment must meet the following requirements: ①The construction and maintenance of temporary electricity at the construction site must be completed by professional electricians who have been trained and obtained employment certificates. ②All types of electricity users should do: a Master the basic knowledge of safe electricity use and the performance of the equipment used. b Before using the equipment, you must wear and equip yourself with corresponding labor protection equipment as required. ； Check whether the electrical devices and protective facilities are in good condition, and it is strictly forbidden to operate the equipment when it is sick. c. Disabled equipment must be turned off and powered off, and the switch box must be locked. d. Relocation or moving of electrical equipment must be done after the electrician cuts off the power supply and handles it properly. ⑾Use and maintenance of electrical equipment: ①The name and purpose of each circuit should be marked on the inner panel of the distribution box, and branch signs should be made. ②No debris is allowed to be placed in various electrical boxes and should be kept clean. No other temporary electrical equipment is allowed to be mounted in the box. ③When replacing the fuse melt, it is strictly forbidden to replace it with melt that does not meet the original specifications. ⑿Indoor wire laying and lighting devices: ①Indoor wiring must use insulated copper wires or insulated aluminum wires and be laid in porcelain bottles. The height from the ground shall not be less than 25 meters. ②The entrance line should be fixed with insulators outdoors. The entrance line should pass through the wall through a casing. The distance from the ground should be more than 1 meter. A waterproof elbow should be made outdoors. ③The distance between outdoor lamps and lanterns should not be less than 1 meter from the ground, and the distance between indoor lamps and lanterns should not be less than 24 meters. The socket wiring should comply with the specification requirements. 2. Organizational measures for safe electricity use: ⑴Establish and improve the control system and set up a temporary power leadership group headed by the project manager. ⑵Establish a technical disclosure system, introduce the overall intention, technical content and precautions of temporary civilian construction organization design and safe electricity use technical measures to professional electricians and various types of electricity users, and perform the signature procedures of the submitter and the respondent on the technical disclosure written materials, and indicate the date of disclosure. ⑶Establish a safety inspection system. Starting from the completion of the temporary power project, the temporary power project will be inspected regularly. The main contents are:: Grounding resistance value, insulation resistance value of electrical equipment, leakage protector operating parameters, etc., to monitor whether temporary power projects are safe and reliable, and make detection records. ⑷Establish an electrical maintenance system, strengthen daily and regular maintenance work, promptly discover and eliminate hidden dangers, and establish maintenance work records to record maintenance time, location, equipment, content, technical measures, processing results, maintenance personnel, acceptance personnel, etc. ⑸Establish a project demolition system. After the construction project is completed, the dismantling of temporary power projects should be organized and directed in a unified manner, and the dismantling time, personnel, procedures, methods, precautions and protective measures must be specified. ⑹Establish a safety inspection and evaluation system. The construction management department must conduct regular inspections and assessments of on-site safety conditions in accordance with the JGJ59-88 construction safety inspection scoring standards. ⑺Establish a responsibility system for safe electricity use. The operation, supervision, and maintenance of temporary power projects and parts are divided into sections, blocks, and extensions are implemented by people, supplemented by necessary rewards and punishments. ⑻Establish a safety education and training system. Electricity safety education and training are regularly provided to professional electricians and various types of electricity users. All employees must hold employment certificates issued by the labor department. It is strictly prohibited to work without a certificate. 3. Electrical fire prevention measures: ⑴Correctly select the conductor cross-section according to the power consumption of the electrical equipment. ⑵Electrical operators must carefully implement specifications and connect wires correctly. ⑶It is strictly forbidden to use electric stoves in the construction site, and it is strictly forbidden to use light bulbs with a power of more than 100 watts indoors, and it is strictly forbidden to use bedside lamps. ⑷It is strictly forbidden to store debris and flammable objects in distribution boxes and switch boxes, and special personnel should be assigned to clean them regularly. ⑸Establish a fire prevention inspection system at the construction site, strengthen the electrical fire prevention leadership system, and establish an electrical fire prevention team. ⑹Once an electrical fire occurs at the construction site, the following matters should be paid attention to when extinguishing the electrical fire:: ①Cut off the power supply quickly to prevent the situation from escalating. Wear insulating gloves and use tools with insulating handles when cutting off the power supply. When the fire is far away from the switch, the wires need to be cut. The live and neutral wires should be cut separately and staggered to avoid short circuits at the jaws and to prevent the power cord from falling to the ground, causing short circuits and electric shocks. ②When the power cord cannot be cut off in time for other reasons, on the one hand, send people to the power supply end to pull the switch. On the other hand, when putting out a fire, all parts of the human body should be kept at a sufficient distance from live objects, and insulating supplies must be worn. ③When extinguishing electrical fires, use fire extinguishing agents with good insulation properties, such as: Dry powder fire extinguisher, carbon dioxide fire extinguisher. It is strictly prohibited to use conductive fire extinguishing agents for fire fighting. Technical measures for temporary electricity safety Technical measures for temporary electricity safety include two aspects:: First, technical measures taken for safe electricity use ； The second is the various organizational measures taken to ensure the safe use of electricity and the reliability of power supply, which includes the establishment of various systems, organizational management, and a series of other contents. Measures for safe use of electricity should include the following. 1. Technical measures for safe use of electricity (1) Protective grounding refers to making a reliable electrical connection between the uncharged metal shell of electrical equipment and the ground electrode. Its function is that when the metal shell of the electrical equipment is charged, if the human body touches the shell, most of the current flows through the ground body because the resistance of the human body is much greater than the resistance of the ground body. * * ground, and the current flowing through the human body is very small. At this time, as long as the grounding resistance is properly controlled (generally no more than 4Ω), the occurrence of electric shock accidents can be reduced. However, in the TT power supply system, the voltage of the equipment shell of this protection method is still quite dangerous to the human body. Therefore, this protection method is only suitable for construction sites of TT power supply systems. According to regulations, the resistance of the protective grounding is not greater than 4Ω. (2) Protective zero connection In a low-voltage power system where the neutral point of the power supply is directly grounded, the metal shell of the electrical equipment is directly electrically connected to the neutral line or the dedicated neutral line in the power supply system, which is called protective zero connection. Its function is that when the metal shell of the electrical equipment is charged, the short-circuit current forms a closed circuit through the neutral line, turning it into a single-phase short-circuit fault. Because the impedance of the neutral line is very small, the short-circuit current is very large, generally several times or even dozens of times greater than the rated current. Such a large single-phase short circuit will cause the protection device to act quickly and accurately, cut off the accident power supply, and ensure personal safety. Its power supply system is a zero-connection protection system, that is, TN system. Whether the protective neutral line is separated from the working neutral line, the TN power supply system can be divided into three power supply systems: TN-C, TN-S and TN-CS. 1) TN-C power supply system. Its working neutral line also serves as the zero protection line. This power supply system is commonly known as the three-phase four-wire system. However, if the three-phase load is unbalanced, there will be an unbalanced current on the neutral line, so the metal shell of the electrical equipment connected to the protective line has a certain potential. If the neutral wire is disconnected, the shell of the leakage equipment connected to zero will be charged. Therefore, this power supply system has certain shortcomings. 2) TN-S power supply system. It connects the working neutral line N and the dedicated protection line Pe. A power supply system that is strictly separated at the power supply, also known as a three-phase five-wire system. Its advantage is that there is no current in the dedicated protection line. This line is specially designed to bear the fault current to ensure that its protective device operates. It should be particularly pointed out that the PE wire is not allowed to be disconnected. The PE wire should be repeatedly grounded at the end of the power supply. 3) TN-CS power supply system. If the construction site shares a transformer with an outside unit or the neutral point of the transformer at the construction site does not have a PE line connected, it is a three-phase four-wire power supply. If the construction site must use a dedicated protective line PE, a dedicated PE line can be led out after repeated grounding of the neutral line in the main box at the construction site. This system is called a TN-CS power supply system. Attention should be paid during construction: Except for the main box, the N line and the PE line are not allowed to be connected anywhere else. Switches and fuses are not allowed to be installed on the PE line, and the ground is not allowed to double as the PE line. Pe wires must not enter the leakage protector, because the action of the leakage protector at the end of the line will cause the front-stage leakage protector to act. Regardless of whether protective grounding or protective zero connection is used, attention must be paid to: In the same system, it is not allowed to ground one part of the equipment and connect another part to zero. Because in the same system, if some equipment is grounded and some equipment is connected to zero, then when the equipment that is grounded collides with the shell, the potential of the neutral line will rise, causing all equipment shells connected to zero to carry dangerous voltages. (3) Install leakage protectors 1) The main distribution box and switch box at the construction site should be equipped with at least two-level leakage protectors, and the rated leakage action current and rated leakage action time of the two-level leakage protectors should be reasonably coordinated to enable them to have hierarchical protection functions. 2) A leakage protector must be installed in the switch box. All electrical equipment at the construction site must be installed with a leakage protector at the head end of the equipment load line, except for zero protection. 3) The leakage protector should be installed on the load side of the power isolation switch of the distribution box and the load side of the power isolation switch of the switch box. 4) The selection of leakage protectors should comply with the requirements of the national standard GB6829-86 "Leakage Current Action Protectors (Residual Current Action Protectors)". The rated leakage action current of the leakage protector in the switch box should not be greater than 30mA, and the rated leakage action time should be less than 0.1s. Leakage protectors used in places with humid and corrosive media should use splash-proof products. Its rated leakage action current should not be greater than 15mA, and its rated leakage action time should be less than 0.1s. (4) Safety voltage Safety voltage refers to the voltage that does not cause any damage to various parts of the human body when in contact without wearing any protective equipment. our country * * Standard GB3805--83 "Safety Voltage" stipulates that there are five levels of safe voltage values: 42, 36, 24, 12, and 6V. It also stipulates: When electrical equipment uses more than 24V, protective measures must be taken to prevent direct contact with live objects. Safety voltage illuminators should be used in the following special places:: 1) For lighting in tunnels, civil air defense projects, places where there is high temperature, conductive dust, or the height of the lamp from the ground is less than 2.m, the power supply voltage should not be greater than 36V. 2) The lighting power supply voltage in humid and easily accessible places with live objects shall not be greater than 24V. 3) In particularly humid places, the lighting power supply voltage working on the ground, boiler or metal container with good conductivity shall not be greater than 12V. (5) The setting of electrical equipment should meet the following requirements: 1) The power distribution system should be equipped with an indoor main distribution panel and an outdoor distribution box or an outdoor main distribution box and a distribution box to implement hierarchical power distribution. 2) The power distribution box and lighting distribution box should be set up separately. If they are placed in the same distribution box, the power and lighting lines should be set up separately, and the lighting line wiring should be connected to the upper side of the power switch. 3) The switch box should be powered by the final distribution box. There should be one machine and one gate in the switch box. Each electrical equipment should have its own switch box. It is strictly forbidden to use one switch to directly control two or more electrical equipment. 4) The main distribution box should be located close to the power supply, and the distribution box should be installed in areas where electrical equipment or loads are relatively concentrated. The distance between the distribution box and the switch box should not exceed 30m, and the horizontal distance between the switch box and the fixed electrical equipment it controls should not exceed 3m. 5) Distribution boxes and switch boxes should be installed in dry, ventilated and room-temperature places. It shall not be installed in gas, smoke, steam, liquid and other harmful media that may cause serious damage. It must not be installed in a place that is susceptible to impact from foreign solid objects, strong vibration, liquid splashing or heat source baking. There should be enough space around the distribution box and switch box for two people to work at the same time, and no items that may hinder operation or maintenance should be piled around them. 6) The distribution box and switch box should be installed correctly and firmly, and the mobile box should be installed on a solid bracket. The vertical distance between the lower skin of fixed distribution boxes and switch boxes and the ground should be greater than 1.3m and less than 1.5m. The vertical distance between the lower skin of the mobile distribution box and switch box and the ground is 0.6 to 1.5m. Distribution boxes and switch boxes are made of iron plates or high-quality insulating materials. The thickness of the iron plates should be greater than 0.5mm. 7) The inlet and outlet of the wires in the distribution box and switch box should be located on the bottom surface of the box. It is strictly prohibited to be located on the top, side, back or door of the box. (6) Installation of electrical equipment 1) The electrical appliances in the distribution box should first be installed on a metal or non-wood insulated electrical installation plate, and then the whole body should be fastened to the distribution box. The metal plate and the distribution box should be electrically connected. 2) Various electrical appliances in the distribution box and switch box should be fastened to the mounting plate in the specified positions and must not be skewed or loose. And the distance between electrical equipment and between equipment and the board should comply with the requirements of relevant process standards. 3) The working neutral line in the distribution box and switch box should be connected through the terminal board and should be separated from the protective neutral line terminal board. 4) The connecting wires in distribution boxes and switch boxes should use insulated wires, and the types and cross-sections of the wires should strictly follow the marked cross-sections on the power supply drawings. The connecting wires between various instruments should use insulated copper core wires with a cross-section of not less than 2.5mm2. The wire joints must not be loose and there must be no exposed live parts. 5) The metal frames, metal boxes, metal electrical installation plates of various boxes, and the normally uncharged metal bases and shells of the electrical appliances in the boxes must be protected and connected to zero. The protective neutral line should be connected through the terminal board. 6) The cables behind the distribution box need to be arranged neatly, tied into bundles, and fixed on the panel with staples. Appropriate margin should be left for the wires leading out and incoming from behind the panel to facilitate maintenance. 7) The exposed area of ​​the wire should not damage the wire core and be too long. The wire crimp should be firm and reliable. Multi-stranded wires should not be coiled and crimped. Crimping terminals should be installed (except for crimping holes). If it is necessary to perforate and use a jack wire to crimp, the multi-stranded wire should be brushed with tin before crimping, and the number of wire strands must not be reduced. (7) Protection of electrical equipment 1) Construction under construction is not allowed under high and low voltage lines. No work sheds, living facilities, or components, racks, materials and other debris are allowed to be stacked under high and low voltage lines. 2) During construction, a safe operating distance must be maintained between the outer edges of various racks and the side lines of external power overhead lines. When the voltage of the external power line is below 1kV, the minimum safe operating distance is 4m ； When the voltage of external overhead lines is 1~10kV, the minimum safe operating distance is 6m ； When the voltage of external overhead lines is 35~110kV, the minimum safe operating distance is 8m. It is strictly forbidden to set up the ramps of the upper and lower scaffolding on the side with external power lines. The minimum horizontal distance between any part of the slewing jib crane or the edge of the hoisted object and the side line of an overhead line below 10kV shall not be less than 2m. 3) When the motor vehicle lane at the construction site intersects with external power overhead lines, the minimum vertical distance between the lowest point of the overhead line and the road surface should meet the following requirements: When the external power line voltage is below 1kV, the minimum vertical distance is 6m ； External power line ； When the voltage is l～35kV ； The minimum vertical distance is 7m. 4) When the minimum safe distance cannot be reached, protective measures must be taken at the construction site. Barriers, barriers, fences or protective nets can be added, and eye-catching warning signs must be hung. When erecting protective facilities, electrical engineering technicians or full-time safety personnel should be responsible for supervision. 5) For construction sites where the minimum safe distance cannot be reached and protective measures cannot be erected, the construction unit must consult with the relevant departments and take measures such as power outage, relocation of external wires, or change of project location, otherwise no construction is allowed. (8) The operators and maintenance personnel of electrical equipment must meet the following requirements: 1) The construction and maintenance of temporary electricity at the construction site must be completed by professional electricians who have received a certificate of employment after training. The grade of the electrician should be adapted to the difficulty and technical complexity of the project. Junior electricians are not allowed to perform the work of intermediate and senior electricians. 2) All types of electricity users should do: (a) Master the basic knowledge of safe electricity use and the performance of the equipment used ； (6) Before using the equipment, you must wear and equip yourself with corresponding labor protection equipment as required. ； And check whether the electrical installation and protective facilities are intact. It is strictly prohibited to operate the equipment with "disease" ； (a) Out of service equipment must be turned off and powered off, and the switch box must be locked. ； (b) Responsible for protecting the load line, protective neutral line and switch box of the equipment used. Discover problems and report them promptly for resolution ； (c) Relocation or moving of electrical equipment must be done after an electrician cuts off the power supply and handles it properly. (9) Use and maintenance of electrical equipment 1) All distribution boxes and switch boxes at the construction site should be inspected and repaired once a month. Inspection and maintenance personnel must be professional electricians. You must wear insulating supplies and use electrical insulating tools when working. 2) When inspecting and repairing distribution boxes and switch boxes, the corresponding power switch at the previous level must be opened and powered off, and a power outage sign must be hung. Live work is strictly prohibited. 3) The name and purpose of each circuit should be marked on the inner panel of the distribution box, and branch markings should be made. 4) The main and distribution box doors should be equipped with locks, and dedicated personnel should be designated to be responsible for the distribution box and switch box. When the construction site stops working for more than 1 hour, the power switch box should be locked. 5) No debris is allowed to be placed in various electrical boxes and should be kept clean. No other temporary electrical equipment is allowed inside the box. 6) When replacing the melt of the fuse, it is strictly forbidden to replace it with melt that does not meet the original specifications. (10) Distribution lines at the construction site 1) The conductors of all overhead lines at the site must be insulated copper wires or insulated aluminum wires. The wires are installed on special poles. 2) The minimum conductor cross-section of overhead lines shall not be less than the following cross-sections: When copper-core insulated wires are used for overhead lines, the conductor cross-section shall not be less than 10mm2 ； When aluminum-core insulated wires are used, the cross-section is not less than 16 mm2. The minimum cross-section of overhead insulated aluminum wires across railways, highways, rivers, and power lines is not less than 35 mm2, and the cross-section of insulated copper wires is not less than 16 mm2. 3) Wire joints for overhead lines: The number of connectors of each layer of overhead wires within a span shall not exceed 50% of the number of conductors on that layer, and a conductor is only allowed to have one connector. ； Lines shall not have joints within the distance across railways, highways, rivers, and power lines. 4) Arrangement of phase sequence of overhead lines: (a) When the TT system supplies power, its phase sequence arrangement: Facing the load, from left to right, they are L1, N, L2, L3 ； (b) When the TN-S system or TN-CS system supplies power, the phase sequence arrangement when the protective neutral line and the protective neutral line are installed on the same cross arm: Facing the load, from left to right, they are L1, N, L2, L3, PE ； (c) When the TN-S system or TN-CS system supplies power, the power lines and lighting lines are erected on the same pole and the upper and lower cross arms are arranged in phase sequence.: The upper cross arms, facing the load, are L1, L2, and 13 from left to right. ； The lower cross arm, facing the load, is L1, (12, L3), N, and PE from left to right. , when the lighting wire is set up on two cross arms, the lowermost cross arm faces the load, and the rightmost wire is the protective neutral line PE. 5) The span of overhead lines is generally 30m, and the maximum distance shall not be greater than 35m. ； The distance between lines should be greater than 0.3m. 6) The maximum sag distance between the conductor and the ground at the construction site shall not be less than 4m, and 6m when crossing the motorway. 7) The poles used for overhead lines should be special concrete poles or wooden poles. When using wooden poles, the wooden poles must not rot and their tip diameter should not be less than 130mm. 8) The cross arms, angle steel and other accessories on the poles used for overhead lines should be selected based on the conductor cross-section and type of pole. The burial of the poles and the setting of the stay wires should all comply with the relevant construction specifications. (11) Cable lines at the construction site 1) Cable lines should be buried in pipes or laid aerially along walls or poles. It is strictly prohibited to lay them openly along the ground. 2) The depth of cable laying directly buried outdoors should be no less than 0.6m, and fine sand no less than 50mm thick should be laid evenly above and below the cable, and then covered with a hard protective layer such as bricks. 3) Rubber cables should be fixed with insulators when laying along walls or poles. It is strictly prohibited to use bare metal wires for binding. The distance between fixed points should ensure that the rubber cable can withstand the load caused by its own weight. The maximum arc vertical distance of the rubber cable shall not be less than 2.5m. 4) The cable joints should be strong and reliable. The insulation-wrapped joints cannot reduce the original insulation strength and must not bear tension. 5) In construction sites with high-rise buildings, temporary cables must be introduced underground. The vertical laying position of cables should make full use of the shafts, vertical holes, etc. of the project under construction, and should be close to the load center. There should be no less than one fixed point on each floor. The cables shall be laid horizontally and fixed along the wall, and the maximum arc vertical distance shall not be less than 18m. (12) Indoor wire laying and lighting devices 1) Indoor wiring must use insulated copper wires or insulated aluminum wires, and be laid using porcelain bottles, porcelain clips or plastic clips. The height from the ground shall not be less than 2.5m. 2) The entrance wire should be fixed with insulators outdoors. The entrance wire should pass through the wall and pass through a casing. The distance from the ground should be greater than 2.5m. A waterproof elbow should be made outdoors. 3) The cross-section of wires used for indoor wiring should be constructed according to the requirements of the drawings, but the minimum cross-section of aluminum wires should not be less than 2.5mm2, and the cross-section of copper wires should not be less than 1.5mm2. 4) The metal shell of lamps and lanterns must be protected and connected, and all accessories should be galvanized. 5) The distance between outdoor lamps and lanterns shall not be less than 3m from the ground, and the distance between indoor lamps and lanterns shall not be lower than 2.4m. The socket wiring should comply with the specification requirements. 6) The screw lamp holder and wiring should meet the following requirements: (a) The phase wire is connected to the end connected to the center contact, and the neutral wire is connected to the end connected to the threaded port. (b) The insulating shell of the lamp holder must not be damaged or leakage. 7) The phase wires of various electrical equipment and lamps must be controlled at the beginning, and the phase wires must not be directly introduced into the lamps. 8) For temporary indoor lighting fixtures, pull-cord switches should be used first. The height of the pull-cord switch from the ground should be 2 to 3 meters, the horizontal distance from the door should be 0.1 to 0.2 meters, and the pull cord exit should be downward. 9) It is strictly prohibited to install sockets and handle switches close to each other ； It is strictly prohibited to install switches on the bed. 2. Organizational measures for safe electricity use (1) Establish a preparation and approval system for temporary electricity construction organization design and technical measures for safe electricity use, and establish corresponding technical files. (2) Establish a technical disclosure system. Introduce the overall intention, technical content and precautions of the temporary power construction organization design and technical measures for safe power use to professional electricians and various types of electricity users. The technical disclosure documents should be signed by both the submitter and the respondent, and the date of the disclosure should be indicated. (3) Establish a safety inspection system. Starting from the completion of the temporary power project, the temporary power project will be inspected regularly. The main contents are:: Grounding resistance value, insulation resistance value of electrical equipment, leakage protector operating parameters, etc., to monitor whether the temporary power project is safe and reliable, and make detection records. (4) Establish an electrical maintenance system. Strengthen daily and regular maintenance work, promptly discover and eliminate hidden dangers, and establish maintenance work records to record maintenance time, location, equipment, content, technical measures, processing results, maintenance personnel, acceptance personnel, etc. (5) Establish a project demolition system. After the construction project is completed, the dismantling of temporary power projects should be organized and directed in a unified manner, and the dismantling time, personnel, procedures, methods, precautions and protective measures must be specified. (6) Establish a safety inspection and evaluation system. Construction management departments and enterprises must regularly inspect and evaluate on-site electricity safety conditions in accordance with JQ59-88 "Building Construction Safety Inspection and Scoring Standards". (7) Establish a responsibility system for safe electricity use. The operation, supervision, and maintenance of each part of the temporary power project shall be divided into sections, blocks, and substations, and shall be supplemented by necessary rewards and punishments. (8) Establish a safety education and training system. Electricity safety education and training are regularly provided to professional electricians and various types of electricity users. All employees must hold employment certificates issued by the labor department. It is strictly prohibited to work without a certificate.

It is necessary to improve employees' awareness of electricity safety and do a good job in shift handover work

The reason why temporary electricity consumption needs to be managed is to standardize temporary electricity consumption. This is what you electricians do.