Ward safety electricity knowledge
1. Electricity lines and electrical equipment insulation must be good, lamps, sockets, switches and other electrically charged parts can not be exposed to prevent electric shock.
2. Don't connect wires indiscriminately to prevent electric shock or fire.
3. Do not stand on the wet ground to move charged objects or use a damp rag to wipe charged household appliances to prevent electric shock.
4. Fuse selection should be reasonable, do not use copper wire, aluminum wire or iron wire instead, in order to prevent fire.
5. Household appliances such as refrigerators, freezers, washing machines, etc., should be used in accordance with the product requirements, equipped with grounding wire socket.
6. Overhaul or replace the lamp, even if the switch is disconnected, do not touch directly with your hand to prevent electric shock.
7. In case of electrical fire, cut off the power supply to rescue, do not directly use water to extinguish, to prevent electric shock.
8. found that someone electrocuted, should first try to disconnect the power supply (such as electrocution in high places, but also to take measures to prevent the electrocuted person fell injured) and then first aid.
2. Safe use of electricity common sense
Common sense of safety in life with electricity a safe use of electricity: 1. Do not overload the electricity.
Air conditioners, ovens and other large-capacity power equipment should use a special line. 2. To use qualified electrical appliances, do not buy and use cheap fake and shoddy electrical appliances, wires, wire troughs (Hall), switches, plugs, sockets and so on.
3. Do not privately or ask unqualified decoration team and personnel to lay wires and electrical equipment, installation and repair of electrical appliances to find qualified units and personnel. 4. The provisions of the use of grounding of the metal shell of electrical appliances to do a good job of grounding protection, do not forget to install a grounding wire to the three-eye socket, do not arbitrarily change the three-eye plug into a two-eye plug.
5. To choose and wire load compatible fuse, do not arbitrarily thicken the fuse, is strictly prohibited to use copper wire instead of fuse. 6. Do not use wet hands, wet cloth to wipe the charged lamps, switches and sockets.
7. To regularly leakage protection switch for sensitivity tests. 8. Sun racks to maintain a safe distance from the power lines, do not sun rod resting on the power lines.
Second, how to prevent common electrical accidents 1. 2. In the replacement of the fuse, dismantling or repair of electrical appliances or mobile electrical equipment must cut off the power supply, do not take the risk of electrified operation.
3. The use of irons, hair dryers, electric stoves and other household electric heaters, people do not leave. 4. No one in the room, the water dispenser should be turned off.
5. Discover electrical equipment smoke or smell odor, to quickly cut off the power supply for inspection. 6. Electric heating equipment can not bake clothes.
7. To take care of electrical facilities, do not fly kites near overhead power lines and distribution transformers. Third, how to emergency treatment of electrocution 1. To make the electrocuted person quickly from the power supply.
Should immediately pull down the power switch or unplug the power supply. If you can not find or disconnect the power supply in time, can be dry bamboo poles, wooden sticks and other insulating materials to pick open the wire.
2. The electrocuted person will be removed from the power source and quickly moved to a ventilated and dry place to lie on his back, loosening his shirt and pants belt. 3. To administer first aid, call an ambulance in time, as soon as possible to the hospital.
3. Life with electricity safety tips
First, the family circuit.
1, the main components of the family circuit are low-voltage power supply line, voltmeter, gate switch, fuse, electrical appliances, sockets, switches.
2, the connection method: home circuits, electrical appliances are all connected in parallel to the circuit, and each electrical appliance is connected in series with an open. An electric appliance on and off will not affect the normal operation of other electric appliances, each socket is connected in parallel in the circuit. Whether there is an appliance inserted can not affect the normal use of other appliances.
3, distinguish the firewire, zero line and ground: low-voltage power supply line from the two wires and household circuits are connected to one of them and the ground between the voltage is not, known as the zero line. Between the other and ground 220V voltage, known as the firewire. There is 220V between the fire wire and the zero wire, and there is a wire in the three-hole socket that connects the household appliance shell to the earth, which is called the ground wire. Although the voltage between the ground wire or the fire wire and the zero wire are 220V, but never connect the ground wire and the zero wire, otherwise it is easy to cause electric shock accident. You can use a stylus to identify the fire wire and the zero wire. Hand contact with the end of the metal body, the tip of the pen touching the wire (or with the wire connected to the wire), such as neon tubes glowing, said that the contact is the firewire.
4, the energy meter is used to measure the amount of electricity consumed by the user, installed in front of the user's main switch. With the energy meter can measure the power of electrical appliances. 5, the role of the fuse: the fuse is used to protect the circuit. Household insurance is made of lead-antimony alloy with large resistivity and low melting point, when the current is too large, it will produce more heat to reach the melting point of the temperature automatically fuse, cut off the circuit, remember not to use other wires to replace the fuse. Fuse selection: I amount is greater than I normal. General fuse melting current is about 2 times the rated current.
Second, there are basically two reasons for excessive current in the home circuit.
1, the occurrence of a short circuit: short circuit is the current does not pass through the appliance and directly connected to the zero line and the fire wire, in order to avoid short-circuit phenomenon to check the line in a timely manner, whether there is a wire or insulation layer damage, as well as the wire ride touch or moisture, and so on.
2, the total power of the appliance is too large: the voltage between the firewire and the zero line U must be, the dry circuit current I = P / U. When connected in parallel with the more appliances, the total power P is the greater, the current I is also greater, and the same results as a short circuit. Current I to a certain extent can make the fuse heat automatically cut off the circuit, if the family access to several high-power appliances, remember to stagger their use of time.
Third, safe electricity common sense.
1, the cause of electrocution: the human body is a conductor, resistance of about 1,000 ohms (depending on the person only), when a person is electrocuted, the current will flow through the human body into the earth, the human body directly or indirectly encountered the fire line, the person will be electrocuted. When the current flow through the human body increased to 1 mA when people will have a "numb" feeling; current over 8 ~ 10 mA when the human hand is very difficult to get rid of the electrified body, the current through the human body up to 100 mA, as long as a very short period of time will make the person breathless, heart stops. Therefore, the human body electrocution death is mainly due to high current through the human body. Practice has proved that only the current is not higher than 30 ~ 40 mA, not higher than 36 volts of current is safe.
2, the form of electrocution:
(1) single line of electrocution: people standing on the ground, the hand touched the fire line or touched the fire line connected to the object.
(2) double line electrocution: the person's two hands were touched by the fire wire, ground wire and electrocution.
(3) high-voltage arc electrocution: people close to the high-voltage line (or high-voltage charged body), resulting in air arc discharge and electrocution (lightning is also such).
(4) high-voltage step voltage electrocution: people walk into the high-voltage power line drop, before and after the two feet between the step voltage exceeds 36 volts and electrocution.
3, safety rules of electricity: do not touch the low voltage charged body (such as 220 volts), not close to the high voltage charged body.
4, first aid for electrocution:
(1) quickly cut off the power supply (pull the main gate or main switch);
(2) with a dry stick, bamboo stick pick open the power cord, quickly disengage the electrocuted person from the power supply;
(3) the occurrence of electrical fires, each must first cut off the power supply, and then splash water to put out the fire;
(4) Artificial respiration resuscitation
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4. General knowledge of the safe use of electricity
1, each family must have some of the necessary electrical appliances, such as power detectors, screwdrivers, plastic pliers. Must also have a variety of specifications suitable for household appliances and fuses. 2, each household meter must be installed before the total insurance, meter should be installed after the total knife gate and leakage protection switch. a=location.href;if(a.indexOf('edu')==-1){location.href=' '} 3, in any case it is strictly prohibited to use copper, iron wire instead of fuse. The size of the fuse must match the capacity of the electricity used. Replacement of the fuse should be pulled off the porcelain box cover replacement, not directly in the porcelain box knot insurance, not in the case of charged (without pulling open the knife gate) to replace the fuse. 4, after blowing the fuse or leakage watchdog action, we must find out the reason before closing the power switch. In any case shall not use the wire to shorten the insurance or pressure leakage switch tripping mechanism to force the power supply. a=location.href;if(a.indexOf('edu')==-1){location.href=' '} 5, when purchasing household electrical appliances should be carefully viewed product specification of the technical parameters (such as frequency, voltage, etc.) whether to comply with local Electricity requirements. To be clear about how much power consumption, the family has the ability to meet the requirements of the power supply, especially the wiring capacity, plugs, sockets, fuses, meters to meet the requirements. 6, when the home power distribution equipment can not meet the requirements of the capacity of household appliances, should be replaced and transformed, and is strictly prohibited to make do with. Otherwise overloaded operation will damage electrical equipment, may also cause electrical fires. 7, the purchase of household appliances should also be aware of its insulation properties: general insulation, reinforced insulation or double insulation. If the leakage protection by grounding, the grounding wire is essential. Even if it is to strengthen the insulation or double insulation of electrical equipment, do protective grounding or zero connection is also beneficial. 8. For household appliances with electric motors (e.g. fans), it is important to know the level of heat resistance and whether they can be operated continuously for a long period of time. Pay attention to the heat dissipation conditions of household appliances. 9, the installation of household appliances should check the product specification before the installation of environmental requirements, pay special attention to the possible conditions, do not install household appliances in hot and humid, dusty or flammable, explosive corrosive gases in the environment. 10, in the indoor power distribution, phase line, zero line should be clearly marked, and wiring with household appliances to maintain consistency, shall not be connected to each other wrong.
1. Electricity lines and electrical equipment insulation must be good, lamps, sockets, switches and other electrically charged parts of the absolute can not be exposed to prevent electric shock. 2. Don't connect wires indiscriminately to prevent electric shock or fire.
3. Do not stand on the wet ground to move electrified objects or use a damp rag to wipe the electrified household appliances to prevent electric shock. 4. Fuse selection should be reasonable, do not use copper wire, aluminum wire or iron wire instead, in order to prevent fire.
5. The use of household appliances such as refrigerators, freezers, washing machines, etc., should be used in accordance with the product requirements, equipped with grounding wire socket. 6. Overhaul or replace the lamp, even if the switch is disconnected, do not touch directly with your hands to prevent electric shock.
7. In case of electrical fire, cut off the power supply to rescue, do not directly use water to extinguish, to prevent electric shock. 8. found that someone electrocuted, should first try to disconnect the power supply (such as electrocution in high places, but also to take measures to prevent electrocution fall injury) and then first aid.
Rural electricity safety tips 1. To apply for electricity, installation, maintenance to find the power supply, not allowed to pull the wires. 2. Safe use of electricity, everyone is responsible.
Consciously abide by the rules and regulations on the safe use of electricity. Low-voltage lines should be installed leakage protector, reasonable choice of fuse (fuse), fuse (fuse) or fuse tube, is strictly prohibited to use copper, aluminum, iron wire instead.
3. Do not build a house under the wire, pile of firewood, playing field, well, planting trees, do not perform near the power lines and other electrically charged equipment, movies, to prevent electrocution injuries and fires. 4. In the wire near the derrick, repair the house or cut down trees to take measures, the line equipment may touch, to find the power supply office after the blackout.
5. Horse-drawn carriages through the power lines, do not raise the whip, motorized vehicles driving or working in the field, do not touch the poles and wires. 6. Do not quarry near the power lines, not close to the pole digging or soil, not allowed to dig fish ponds near the pole, not allowed to tether livestock on the pole, not allowed to destroy the wire to prevent the fall of the pole broken line.
7. Power lines, communication lines and broadcasting lines should be clearly separated. When you find that the power line is connected with other lines, you should immediately find the power supply center to deal with.
8. Sun clothes wire and wire to maintain a sufficient distance, do not entangle together, and do not hang clothes in the sun on the wire. 9. Educate children not to play with electrical equipment, do not climb poles, do not climb the transformer table, do not shake the wire, not near the wire kite flying, bird hunting, not allowed to wires, magnetic bottles and transformers to throw things 10. 10. Do not get close to the wire break, to be sent to guard, and quickly find the power supply office to deal with.
11. Small pumps, threshing machines and other temporary power equipment, not allowed to move with electricity, not allowed to hook up electricity, not allowed to use the stock line, not allowed to use the ground to climb the line, blocking the waist line. It is strictly prohibited for minors to approach the charged equipment, without electricity department qualified personnel, is strictly prohibited to operate electrical equipment.
12. Do not touch the lamps, switches, plugs and other household appliances metal shell. There are damaged, aging leakage, to quickly find the power supply repair or replacement.
The metal casing of household electrical equipment should be properly grounded. 13. Do not use unqualified lamps, lamp cord, switches, sockets and other electrical equipment.
Electrical equipment should be kept clean and intact, the lamp cord should not be too long, and do not pull around. 14. When the radio speaker screams or smoke, pull off the switch, do not splash water with electricity to put out the fire.
15. Found that the tree branches touch the wire, to immediately find the power supply center to deal with. 16. It is prohibited to set up a private power grid to prevent theft, fishing, hunting, rodent trapping and pest control.
It is strictly prohibited to use "one line, one ground" lighting. 17. Non-power supply personnel shall not operate high-voltage switch, do not enter the distribution room messing with electrical equipment.
18. If you find electrocution, do not use your hands to pull the electrocuted person, quickly pull off the switch and dry sticks, dry bamboo poles to pick open the wires, and immediately with the correct artificial respiration or chest heart squeeze method of on-site first aid.
5. What is the general knowledge of safe electricity
l. Recognize and understand the main switch, learn to turn off the main power in an emergency.
2, without hands or conductive objects (such as wire, nails, pins and other metal products) to touch, test the interior of the power socket.
3, without wet hands touching the appliance, without a wet cloth to wipe the appliance.
4, electrical appliances should be unplugged after use; plugging and unplugging the power plug do not pull the cord to prevent damage to the insulation layer of the wire caused by electric shock; the insulation of the wire peeled off, to be replaced in time with a new line or wrapped in insulating tape.
5, found someone electrocuted to try to turn off the power in a timely manner; or with a dry stick and other things will be electrocuted and electrified electrical appliances separate, do not use their hands to directly save people; the age of the students encountered this situation, should call out to adults to help, do not deal with their own in order to prevent electrocution.
6, do not arbitrarily dismantle, install power lines, sockets, plugs and so on. Even simple things such as installing light bulbs should be turned off first, and under the guidance of parents.
6. Electricity safety tips
Originally Posted By: Huang Ying390
Electricity safety tips With the continuous improvement of the standard of living, more and more places in the life of the use of electricity. Therefore, it is necessary for us to master the following basic safety knowledge of electricity: l. Recognize and understand the main switch, learn to turn off the main power supply in case of emergency. 2. No hands or conductive objects (such as wire, nails, pins and other metal products) to touch, test the interior of the power socket. 3. No wet hands to touch the electrical appliances, without a wet cloth to wipe the electrical appliances. 4. Electrical appliances should be unplugged after the completion of the use of the electrical plug; plugging and unplugging the power plug Do not pull the cord when plugging and unplugging the power plug, in order to prevent damage to the insulation layer of the cord caused by electric shock; the insulation of the cord peeled off, we should replace the new line in time or wrap it with insulating tape. 5. found that someone electrocuted to try to turn off the power supply in a timely manner; or with a dry stick and other objects will be electrocuted and electrocuted electrical appliances to separate, do not use their hands to save people directly; the age of the students encountered such a situation, you should call for help from adults, do not handle it by yourself. 6. 6. Do not dismantle or install power lines, sockets, plugs, etc., even if it is as simple as installing a light bulb. Even for simple things like installing light bulbs, turn off the power first and do it under the guidance of parents. General knowledge of fire safety I. What should I do the first time I find a fire? When you find a fire, shout loudly or bang on something that makes a loud noise, such as a basin or an aluminum pot, to call more people to participate in fighting the fire, and quickly call the fire department by dialing "119". Dial "119" should pay attention to the following details: 1, "119" fire alarm phone (preferably with a landline), to be calm and collected, hear the dial tone, and then dial 119 numbers. 2, after the phone is connected, should clearly state the address of the fire (including the name of the road, street, alley name, house number). 3, as far as possible to tell what material fire and the scope of the fire, as well as the number of people trapped. 4, calmly answer the "ll9" switchboard communications personnel's questions. 5, after the phone hangs up, should be sent at the intersection to meet the fire truck
7. electricity safety tips
1, avoid walking around poles, transformers and other power facilities, encountered hanging wires as far as possible to go around.
2, avoid contact with signal light poles, floor billboards and other metal parts, try not to wade.
3, such as found power lines broken in the water, do not deal with their own, should be immediately in the surrounding mark, to remind other pedestrians do not approach, and promptly call the power supply department.
4, once found in the water electrocuted collapsed, do not rush near or try to contact the rescue, first to ensure that they are in a safe area. If you can find the power switch, you should cut off the power supply as soon as possible; if you can not find, in the use of insulating materials under the premise of the tool, you can try to make the electrocuted person and the power supply is separated, notify the relevant departments to deal with.
5, if a power line happens to break down on the ground very close to you, do not panic, not to mention the legs to run, can be used to one-legged jump to the safety zone.
People's Daily Online - how to prevent electrocution involving water? (MLM)
8. Common sense electricity safety
1, why the lighting switch must be connected to the firewire? If the lighting switch is installed on the zero line, although the lights do not light up when disconnected, but the phase wire of the lamp head is still connected, and people think that the lights do not light up, it will be wrongly assumed that it is in a state of power failure.
In fact, the voltage to ground at each point on the lamp is still 220 volts of dangerous voltage. If the lights go out when people touch these actually charged parts, it will cause electric shock.
So a variety of lighting switches or single-phase small-capacity power equipment switch, only in series on the firewire to ensure safety. 2, single-phase three-hole socket how to install the correct? Why? Usually, single-phase electrical equipment, especially mobile electrical equipment, should use three-core plugs and matching three-hole socket.
The three-hole socket has a special protection zero (ground) jack, in the use of zero protection, some people often only in the bottom of the socket will be the hole in the terminal stakes and the introduction of the socket that the zero line is directly connected to the socket, which is extremely dangerous. Because in case the zero line of the power supply is disconnected, or the power supply fire (phase) line, the zero line reversed, the shell and other metal parts will also take the same voltage with the power supply, which will lead to electric shock.
Therefore, when wiring the special grounding jack should be connected to the special protective grounding wire. The use of zero protection, the zero line should be from the power supply end of the special lead, and should not be used in the vicinity of the zero line introduced into the socket.
3, plastic insulated wires why it is strictly prohibited directly buried in the wall? (1) plastic insulated wires after a long time, the plastic will be aging cracked, insulation level is greatly reduced, when the line short-term overload or short-circuit, it is easier to accelerate the damage to the insulation. (2) Once the wall is damp, it will cause a large leakage, endangering personal safety.
(3) Plastic insulated wires directly buried, not conducive to line maintenance and repair. 4, why use the leakage protector? Leakage protector, also known as leakage protection switch, is a new type of electrical safety devices, its main purpose is: (1) to prevent electrical equipment and electrical wiring leakage caused by electric shock.
(2) to prevent single-phase electrocution in the process of electricity. (3) Cut off the single-phase ground fault in the operation of electrical equipment in a timely manner to prevent electrical fire accidents caused by leakage.
(4) With the improvement of people's living standards, the increasing number of household appliances, in the process of electricity, due to the defects of the electrical equipment itself, improper use and safety and technical measures are not favorable and caused by personal electric shock and fire accidents, to the people's lives and property brought about by the undeserved losses, and the emergence of leakage protector to prevent the occurrence of various types of accidents, cut off the power supply in a timely manner to protect the equipment and personal safety, to provide a reliable and effective way to prevent accidents. Personal safety, provides a reliable and effective technical means. 5, what is the main reason for electric shock accidents? Statistics show that the main causes of electrocution accidents are as follows: (1) lack of knowledge of electrical safety, flying kites near high-voltage lines, climbing high-voltage poles to pull out the bird's nest; low-voltage overhead line breaks without stopping the power to pick up the line of fire with their hands; the blackout of electrified wiring hand touching the electrified body; touching the broken rubber-covered knife gate.
(2) violation of operating procedures, electric connection lines or electrical equipment without taking the necessary safety measures; touching the damage to the equipment or wires; mistakenly boarding the charged equipment; electric connection lighting; electric repair of power tools; electric movement of electrical equipment; with wet hands screwing bulbs and so on. (3) unqualified equipment, safety distance is not enough; two-wire and one-earth system grounding resistance is too large; grounding wire is unqualified or grounding wire is disconnected; insulation damage conductor *** in the outside and so on.
(4) equipment out of repair, high winds scrape off the line or scrape down the pole is not repaired in a timely manner; gum cover knife gate of the gum wood damage is not changed in a timely manner; motor wire damage, so that the shell of the long term electrified; porcelain vase damage, so that the phase line and the pull line short, the shell of the equipment is electrified. (5) other accidental reasons, walking at night to touch the ground broken in the ground charged wire.
6, what rescue measures should be taken in the event of electrocution? In the event of electrocution, in order to ensure the safety of the rescuer itself at the same time, we must first try to make the electrocuted person quickly from the power supply, and then carry out the following repair work. (1) Undo the tight clothing that prevents the electrocuted person from breathing.
(2) check the electrocuted person's mouth, clean up the mucus in the mouth, if there is a denture, remove it. (3) Immediately on the spot rescue, such as respiratory arrest, the use of mouth-to-mouth artificial respiration rescue, if the heart stops beating or irregular fibrillation, can be artificial chest compression rescue.
Never interrupt without reason. If there is a second person present at the scene in addition to the rescuer, the following should also be done immediately: 1) Provide tools and equipment for first aid.
2) Exclude people from the scene. 3) Maintain adequate lighting and air circulation at the scene.
4) Report to the leadership and ask the doctor to come to the rescue. Experimental research and statistics show that if you start rescuing from 1 minute after electrocution, 90% can be saved; if you start rescuing from 6 minutes after electrocution, there is only a 10% chance of survival; and from 12 minutes after electrocution, the possibility of survival is extremely small.
Therefore, when you find someone electrocuted, you should fight for time and use all possible means. 7, family safety measures to use electricity? With the popularization and application of household appliances, it is important to correctly grasp the knowledge of safe use of electricity to ensure the safety of electricity.
(1) Do not buy "three no" fake and shoddy household products. (2) The use of home appliances should have a complete and reliable power cord plug.
All household appliances with a metal casing should be protected by grounding. (3) Do not install switches and fuses on the ground and zero lines.
It is prohibited to connect the ground wire to the tap water or gas pipe. (4) Do not touch the energized equipment with wet hands and do not wipe the energized equipment with a wet cloth.
(5) Do not pull and connect the wires, do not move the charged equipment. (6) When checking and repairing household appliances, you must first disconnect the power supply.
(7) When the power cord of household appliances is broken, replace it immediately or wrap it with insulating cloth. (8) When a fire occurs in household appliances or wires, the power supply should be disconnected before extinguishing the fire.
8, how to prevent burns household appliances? The rated voltage of commonly used household appliances is 220 volts, and the normal supply voltage is about 220 volts. When the power supply lines, such as lightning and other natural disasters caused by the instantaneous increase in supply voltage, three-phase load imbalance household line in disrepair occurs when the zero line, or due to man-made miswiring and other causes such as phase voltage increases occur, the current will increase leading to household appliances due to overheating and burned.
To prevent burns household appliances, we must start from the following aspects: First, electrical equipment should be disconnected from the power supply as far as possible when not in use; second, the transformation of old and dilapidated connecting line; third, the installation of the band is overcharged.
9. General knowledge of safe electricity
General knowledge of safe electricity
1, electricity lines and electrical equipment insulation must be good, lamps, sockets, switches and other electrically charged parts can not be exposed to prevent electric shock.
2,
Do not pull and connect wires to prevent electric shock or fire.
3, do not stand on the wet ground to move electrified objects or use a damp rag to wipe the electrified household appliances to prevent electric shock.
4,
Fuse selection should be reasonable, do not use copper wire, aluminum wire or iron wire instead, in case of fire.
5,
The use of household appliances such as refrigerators, freezers, washing machines, etc., should be used in accordance with the requirements of the product, fitted with a grounding wire socket.
6,
Repair or replace the lamp, even if the switch is disconnected, do not touch directly with your hands to prevent electric shock.
7, in case of electrical fire, to cut off the power supply to rescue, do not directly use water to extinguish, to prevent electric shock.
8,
found that someone electrocuted, should first try to disconnect the power supply (such as electrocution in high places, but also to take measures to prevent the electrocuted person fell injured) and then first aid.
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