Common sense pictures of home safety electricity use

1. Common sense of household safe electricity use

Common sense of household electricity safety 1. What are the common sense of household electricity safety?

Knife switch, socket, switch, wire, etc. Installed at home should be intact, and the wires should not be defective or * * *.

Fuse specifications shall meet the requirements, and copper, iron and aluminum shall not be used as fuses instead of lead-tin fuses. Do not use medical tape such as rubber plaster instead of insulating tape.

Don't use the same socket for refrigerator and color TV. This is because the starting current of refrigerators and color TVs is very large. If the color TV and refrigerator are started at the same time, the socket and wires are unbearable, which will adversely affect the refrigerator and color TV. When the refrigerator starts running, it will produce electromagnetic waves, which will affect the audio-visual quality of color TV.

After checking the leakage prevention of electrical appliances for a period of time, if you want to know whether the equipment shell is hot, don't touch the equipment shell with your palm, but gently touch the shell with the back of your hand. Even if the shell leaks electricity, it is convenient to escape quickly. Use the electrical switches in sequence. When using electrical appliances, plug in the power supply first, and then turn on the electrical switch.

After use, turn off the electrical switch first, and then pull out the power plug. If the electrical equipment catches fire after the power failure, it is impossible to judge the cause at the moment. Do not unplug the plug or switch the knife by hand. Unplug the plug or insulated knife, and cut off the power supply before extinguishing the fire.

2. What is the common sense of safe electricity use in families?

1, the household power cord should not be overloaded, and the worn and aging power cord should be replaced in time to avoid accidents.

2. The total risk and risk of household power supply should be reasonably configured to protect household appliances. 3. When decorating the room, the power cord hidden in the wall should be placed in a special flame-retardant sheath, and the cross section of the power cord should meet the load requirements.

4, in case of household appliances on fire, should first cut off the power supply, and then put out the fire. 5. The wiring of household appliances must be correct.

If in doubt, you should ask a professional. 6, household electricity should be installed after voltage protection debugging qualified leakage protector.

Ensure personal safety when using household appliances. 7, wet hands can't touch the charged household appliances, can't use a wet cloth to wipe the household appliances in use, to repair household appliances must first stop the power supply.

8, household electric heating equipment, heating equipment must be far away from the gas tank. When the gas pipeline leaks, first open the window for ventilation, and never turn on the power switch.

9. When using electric irons, soldering irons and other electric heating devices, be sure to stay away from flammable materials. After use, cut off the power supply and unplug it to prevent accidents. 10. If household appliances are found damaged, please ask trained professionals to repair them. Don't disassemble it by yourself to avoid injury.

1 1. If someone gets an electric shock and can't directly contact the person who gets an electric shock, connect the power cord with a wooden stick or other insulation to disconnect the person who gets an electric shock from the power supply. 12, power plugs and sockets should be arranged where children can't reach, and often explain the common sense of safe electricity use at home to the elderly and children at home to enhance their self-protection ability.

3. What is the knowledge about safe use of electricity?

With the continuous improvement of living standards, there are more and more places to use electricity in life. Therefore, it is necessary to master the following basic common sense of safe electricity use: l. Know the main switch of power supply and learn to turn off the main power supply in an emergency. 2. Touch and test the inside of the power socket without hands or conductive objects (such as wires, nails, pins and other metal products). 3. Touch the appliance with wet hands and wipe it with a wet cloth. Don't pull the wire when plugging and unplugging the power plug to prevent the insulation of the wire from being damaged and causing electric shock; The insulation of the wire falls off, so it is necessary to replace the new wire or wrap it with insulating tape in time. 5. When someone gets an electric shock, try to turn off the power in time; Or use dry wooden sticks and other things to separate the electric shock victim from the charged electrical appliances, and don't save people directly by hand; Younger students should appeal to adults for help, and don't handle it by themselves to prevent electric shock. 6. Don't disassemble the power cord, socket and plug at will. Even if it is as simple as installing a light bulb, you should turn off the power first and finish it under the guidance of your parents. Nowadays, more and more household appliances, such as televisions, refrigerators, washing machines, electric irons, hair dryers and electric fans, are used at home. Besides paying attention to the safe use of electricity, we should also pay attention to the following points: 1. Various household appliances have different uses and methods of use, and some of them are more complicated. General household appliances should be studied and used under the guidance of parents, and those with greater risks should not be used by themselves. 2. If there is the smell of smoke, sparks and burning, immediately turn off the power switch and stop using it. At the same time, pay attention to avoid burns when using. 4. Avoid using electrical appliances in humid environment (such as toilet), and don't let electrical appliances get wet, which will not only damage electrical appliances, but also cause electric shock. 5. The fan blades of the electric fan and the dehydration cylinder of the washing machine are rotating at high speed when working, so you can't touch them with your hands or other objects to avoid injury. 6. Stop using TV in thunderstorm weather. Prevent being struck by lightning. 7. If the electric appliance is not used for a long time, it is easy to be damaged by moisture and corrosion, so it needs to be carefully checked before reuse. 8. When purchasing household appliances, you should choose qualified products with reliable quality.

4. What problems should be paid attention to when using electricity safely in family life?

The safety of electricity use involves thousands of households. Only by paying attention to the safe use of electricity can we avoid electric leakage and electric shock accidents.

As a professional electrician, we should actively publicize the following common sense of safe electricity use to the masses: ① Don't wipe electrical equipment or household appliances with wet rags. ② Do not use copper wire instead of fuse.

③ Don't hook the flexible cord of mobile appliances on the power cord. (4) The phase line of the screw lamp holder shall be installed on the central tongue, and a safety cover shall be installed.

⑤ When the shell of electrical equipment is damaged, it should be replaced and repaired in time. ⑥ High-power household appliances (such as electric heaters and air conditioners). ) should be equipped with a dedicated power cord. When they stop working, in addition to turning off the switch, they should also be unplugged in time.

⑦ Don't use high-power electrical appliances on the lighting circuit, and don't plug the electric stove into an ordinary socket; Multiple high-power appliances are not allowed to be plugged into the same socket. ⑧ When cleaning or encountering an indoor fire, close the master brake in time, and do not use water or general fire extinguishers to extinguish the fire before pulling down the master brake.

5. What are the contents of common sense about home safe electricity use?

Common sense of home safety electricity consumption is as follows: 1.

Every family must have some necessary appliances, such as test pens, screwdrivers, rubber pliers, etc. There must also be fuse boxes and fuses of various specifications suitable for household appliances. 2。

Every household must be equipped with master insurance before the meter, and master breaker and leakage protection switch should be installed after the meter. 3。

In any case, it is forbidden to use copper or iron wire instead of fuse. The size of the fuse must match the capacitance.

When replacing the fuse, remove the porcelain box cover and replace it. It is not allowed to overlap the fuse directly in the porcelain box, and it is not allowed to replace the fuse with electricity (without opening the circuit breaker). 4。

After the fuse is blown or the leakage switch acts, it is necessary to find out the reason before turning on the switching power supply. Under any circumstances, it is not allowed to use the short-circuit insurance of wires or the tripping mechanism of forced leakage switch to send electricity.

5。 When buying household appliances, you should carefully check the technical parameters (such as frequency and voltage, etc.). ) meet the local power consumption requirements.

It is necessary to know how much electricity is used and whether the existing power supply capacity of the family meets the requirements, especially whether the wiring capacity, plugs, sockets, fuses and meters meet the requirements. 6。

When household power distribution equipment cannot meet the capacity requirements of household appliances, it should be replaced and modified, and it is strictly forbidden to make do with it. Otherwise, overload operation will damage electrical equipment and may also cause electrical fire.

7。 When buying household appliances, you should also know their insulation performance: general insulation, reinforced insulation or double insulation.

If grounding is used for leakage protection, grounding wire is essential. Even for electrical equipment with reinforced insulation or double insulation, it is beneficial to do protective grounding or protective grounding.

8。 Household appliances with motors (such as electric fans). ) you should also know the heat resistance grade and whether they run continuously for a long time.

Pay attention to the heat dissipation of household appliances. 9。

Before installing household appliances, you should check the requirements of the product manual for the installation environment, and pay special attention not to install household appliances in an environment with damp heat, dust or flammable, explosive and corrosive gases as much as possible. 10。

When wiring indoors, the phase line and the neutral line should be clearly marked, which should be consistent with the wiring of household appliances and must not be connected by mistake. 1 1。

When household appliances are connected to the power supply, you must use a breakable switch or plug. It is forbidden to insert the wire directly into the socket hole. 12。

All household appliances that require protective grounding or protective grounding should use three-pin plugs and three-eye sockets, instead of two-pin plugs and two-eye sockets, resulting in neutral grounding (or grounding) wires. 13。

It is best not to have connectors in the middle of wiring at home. If there must be a joint, it should be firmly contacted, wrapped with insulating tape, or a porcelain junction box.

Wrap the connector with insulating tape. 14。

Wires and switches, circuit breakers, fuse boxes, lamp holders, etc. Should be connected firmly and reliably, good contact. The multi-rubber flexible copper wire connector should be twisted first, and then placed under the connector screw gasket to prevent the thin strands from spreading and contacting another connector and causing short circuit.

15。 Household wiring shall not be directly laid on flammable building materials, and porcelain beads or clamps must be used for wiring on wood; Porcelain sleeves must be used to penetrate the board.

Flammable plastics and other flammable materials shall not be used as decorative materials. 16。

Although the grounding or neutral wire is not normally charged, the electrical shell will be charged in case of leakage after disconnection; In the case of short circuit, the grounding wire also passes a large current. For the sake of safety, the specification of the grounding (neutral) wire shall not be lower than that of the phase wire, and no switch, fuse or connector shall be installed on it.

17。 Do not connect the grounding wire to the water pipe (because the existing water pipe joints are blocked with insulating tape, which has no grounding effect); Do not connect it to the gas pipe (in case of gas explosion caused by electric spark); Don't connect it to the ground wire of the telephone line (in case of strong current and weak current); Nor shall it be connected to the down lead of lightning rod (to prevent lightning strike).

18。 All switches, knife switches and fuse boxes must be covered.

Bakelite cover plate is aging and incomplete and must be replaced. Dirty and wet people must be wiped clean before use after power failure.

19。 Do not drag the power cord on the ground to prevent the power cord from tripping and damaging the insulation.

20。 Before the trial use of household appliances, all switches and buttons should be placed in the original stop position according to the requirements of the manual, and then operated according to the start-stop operation sequence required by the manual.

If there are moving parts, such as a head-shaking fan, sufficient motion space should be considered in advance. 2 1。

When household appliances are found to spark, smoke or burn after being electrified, they should stop immediately and cut off the power supply for inspection. 22。

Be sure to cut off the power supply when moving household appliances to prevent electric shock. 23。

Around the heating equipment must be away from flammable materials. Electric stove, heating stove, electric iron and other heating appliances should not be placed directly on the board to avoid fire.

24。 It is forbidden to touch the live switch with wet hands; It is forbidden to plug the power supply with wet hands; When unplugging the power plug, fingers must not touch the metal part of the contact; Never replace electrical components or light bulbs with wet hands.

25。 For household appliances (such as hair dryer, electric soldering iron, etc. ) It is often used in your hands, and it is forbidden to wrap wires around your hands.

26。 Household appliances used in contact with human body, such as electric blankets, electric oil caps, electric shoes, etc. Before use, it should be electrified and tested, and it can only touch the human body after no leakage.

27。 It is forbidden to move household appliances by dragging wires; It is forbidden to pull the plug by dragging the wire.

28。 When using household appliances, plug in the dead side socket first, then close the knife switch or plug in the live side socket; On the contrary, when stopping the use of household appliances, first open the circuit breaker on the live side or pull out the socket on the live side, and then pull out the socket on the dead side (if necessary).

29。 When the power cord must be cut off in an emergency, insulated electrician tongs or knives with insulated handles must be used.

30。 When rescuing people who get an electric shock, you should first disconnect the power supply or open the power cord with wooden boards and insulating rods. Never drag the person who gets an electric shock directly by hand, so as to avoid serial electric shock.

3 1。 Household appliances, except refrigerators, should be turned off at will, especially electrical appliances, to prevent fires caused by long-term heating.

32。 It is forbidden to use bed switch.

Except for electric blankets, don't lead charged electrical equipment to the bed, close to the sleeping human body. Even if an electric blanket is used, it is recommended to turn off the power supply after heating to ensure safety if it is not necessary to keep warm all night.

33。 If household appliances burn, smoke or catch fire, the power supply must be disconnected immediately, and water or foam is not allowed to put out the fire.

6. Common sense of household electricity use

1. Why does the lighting switch have to be connected to the live wire? If the lighting switch is installed on the zero line, although the light is not on when it is turned off, the phase line of the lamp holder is still on, and people will think that the light is not on and will mistakenly think that it is in a power-off state.

In fact, the ground voltage of each point on the lamp is still a dangerous voltage of 220 volts. If people touch these actually charged parts when turning off the lights, it will cause an electric shock accident.

Therefore, all kinds of lighting switches or switches of single-phase small-capacity electrical equipment can only be connected in series on the live line to ensure safety. 2. How to correctly install the single-phase three hole socket? Why? Usually, single-phase electrical equipment, especially mobile electrical equipment, should use three-core plug and its supporting three hole socket.

There is a special protective zero (grounding) jack in three hole socket. When using zero protection, it is very dangerous for someone to directly connect the wiring pile head of this hole with the zero line that only leads into the socket at the bottom of the socket. Because in case the zero line of the power supply is disconnected, or the fire (phase) line and the zero line of the power supply are connected reversely, its shell and other metal parts will also bring the same voltage as the power supply, resulting in electric shock.

Therefore, when wiring, the special grounding jack should be connected with the special protective grounding wire. When zero protection is adopted, the zero line should be led out from the power supply side, and the zero line introduced into the socket should not be used nearby.

3. Why is it forbidden to bury plastic insulated wires directly in the wall? (1) Plastic insulated conductor will age and crack after long-term use, and the insulation level will be greatly reduced. When the line is overloaded or short-circuited, it is easier to accelerate the insulation damage. (2) Once the wall is damp, it will cause a large area of leakage and endanger personal safety.

(3) Plastic insulated wires are directly buried, which is not conducive to line maintenance and repair. 4. Why should I use a leakage protector? Leakage protector, also known as leakage protection switch, is a new type of electrical safety device. Its main purpose is: (1) to prevent electric shock accidents caused by leakage of electrical equipment and electrical lines.

(2) To prevent single-phase electric shock accidents in the process of electricity utilization. (3) Cut off the single-phase grounding fault in the operation of electrical equipment in time to prevent electrical fire accidents caused by leakage.

(4) With the improvement of people's living standards, the number of household appliances is increasing. In the process of using electricity, personal electric shock and fire accidents caused by defects in electrical equipment, improper use and unfavorable safety technical measures have brought undue losses to people's lives and property. The appearance of leakage protector provides a reliable and effective technical means for preventing all kinds of accidents, cutting off power supply in time and protecting equipment and personal safety. 5. What is the main cause of electric shock accident? Statistics show that the main causes of electric shock accidents are: (1) lack of knowledge about electricity safety, flying kites near high-voltage lines and climbing high-voltage poles to dig nests; After the low-voltage overhead line is disconnected, connect the fire line by hand without power failure; Touch the charged body by hand for live wiring at night; Touch the broken rubber knife switch with your hand.

(two) in violation of the operating rules, without taking necessary safety measures, unauthorized connection of lines or electrical equipment; Touch damaged equipment or wires; Wrong installation of live equipment; Electrified lighting; Online maintenance of power tools; Live mobile electrical equipment; Twist a light bulb, etc with wet hands. (3) The equipment is unqualified and the safety distance is not enough; The grounding resistance of two-wire and one-ground system is too large; The grounding wire is unqualified or disconnected; Insulation damage to wires, etc.

(4) The equipment is in disrepair, the line is blown off by strong wind or the pole is not repaired in time; Rubber breaker bakelite is damaged and not replaced in time; The damage of the motor lead makes the shell charged for a long time; The porcelain bottle is damaged, which makes the phase wire and the pull wire short-circuited, and the equipment shell is charged. (5) Due to other accidental reasons, I walked at night and ran into a broken live wire on the ground.

6. What rescue measures should be taken in case of electric shock? When an electric shock accident occurs, while ensuring the rescuer's own safety, we must first try to make the electric shock victim quickly get rid of the power supply, and then carry out the following emergency repair work. (1) Untie the tight clothes that hinder the breathing of the electrocuted person.

(2) Check the mouth of the person who gets an electric shock and clean up the mucus in the mouth. If there are any dentures, remove them. (3) immediately on-site rescue. If breathing stops, rescue with mouth-to-mouth artificial respiration. If the heart stops beating or vibrates irregularly, use artificial chest compression to rescue it.

Never interrupt for no reason. If there is a second person besides the rescuer at the scene, the following work should be done immediately: 1) Provide first aid tools and equipment.

2) convince others at the scene. 3) Keep sufficient lighting and air circulation at the site.

4) Report to the leader and ask the doctor to come to the rescue. Experimental research and statistics show that 90% patients can be saved if treatment is started from 1 min after electric shock. Only 10% chance can save lives if rescue is started 6 minutes after electric shock; But from 12 minutes after electric shock, the possibility of saving lives is extremely small.

So if you find someone getting an electric shock, you should race against time and take all possible measures. 7. What measures are there to use electricity safely at home? With the popularization and application of household appliances, it is very important to correctly master the knowledge of safe electricity use and ensure the safety of electricity use.

(1) Don't buy fake and shoddy "three noes" household products. (2) When using household appliances, there should be a complete and reliable power cord plug.

Household appliances with metal shell should be protected by grounding. (3) Switches and fuses cannot be installed on the ground wire and zero wire.

It is forbidden to connect the ground wire to the tap water and gas pipeline. (4) Don't touch the live equipment with wet hands, and don't wipe the live equipment with wet cloth.

(5) Don't connect wires privately, and don't move live equipment casually. (6) When repairing household appliances, you must first disconnect the power supply.

(7) When the power cord of household appliances is damaged, it should be replaced immediately or wrapped with insulating cloth. (8) When household appliances or wires catch fire, disconnect the power supply first, and then put out the fire.

8. How to prevent burning household appliances? The rated voltage of common household appliances is 220 volts, and the normal power supply voltage is around 220 volts. If the voltage in the power supply line rises instantly due to natural disasters such as lightning strike, the zero line of the three-phase unbalanced household line is disconnected due to disrepair, or the phase voltage rises due to human misconnection, the current will increase, and household appliances will burn out due to overheating.

To prevent the burning of household appliances, we should start from the following aspects: First, try to disconnect the power supply when the electrical equipment is not in use; The second is to transform the old and disrepair connecting lines; The third is to install with overvoltage.

7. Small knowledge of household electricity safety

First, the home circuit.

1. The main components of household circuits are low-voltage power supply lines, voltmeters, knives, fuses, electrical appliances, sockets and switches. 2. Connection mode: All electrical appliances in the home circuit are connected in parallel, and each electrical appliance is connected in series with an open circuit.

The on-off of one electrical appliance will not affect the normal work of other electrical appliances, and each socket in the circuit is connected in parallel. The insertion of useful electrical appliances will not affect the normal use of other electrical appliances.

3. Distinguish between live wire, neutral wire and ground wire: The low-voltage power supply line is connected to the household circuit by two wires, and there is no voltage between one wire and the ground, which is called zero wire. There is a voltage of 220V between the other one and the ground, which is called the live wire.

The voltage between live wire and neutral wire is 220 volts. In three hole socket, there is a wire connecting the shell of household appliances with the earth, which is called grounding wire. Although the voltage between the ground wire or live wire and the zero line is 220V, the ground wire and the zero line must not be connected, otherwise it is easy to cause an electric shock accident.

You can use a test pen to distinguish between live wire and zero wire. Touch the metal body at the end of the pen with your hand, and the tip of the pen touches the wire (or the wire connected with the wire). If the neon tube glows, it means it is in contact with the fire line.

4. The watt-hour meter is used to measure how much electricity users use, and it is installed in front of the user's main switch. Electric energy meters can be used to measure the power of electrical appliances.

5. Function of fuse: fuse is used to protect the circuit. Lead-antimony alloy is used for household insurance, with high resistivity and low melting point. When the current is too large, it will generate more heat to make the temperature reach the melting point and automatically fuse and cut off the circuit. Remember not to use other wires instead of fuses.

Selection of fuse: it is normal that the amount of I is greater than I. The fusing current of a general fuse is about twice the rated current.

Second, there are basically two reasons for the excessive current in household circuits. 1. Short circuit: Short circuit means that the current directly connects the neutral line and the live line without going through the electrical appliance. In order to avoid short circuit, it is necessary to check the line in time to see whether the conductor or insulation layer is damaged, whether the wire is bumped or damp.

2. The total power of electrical appliances is too large: when the voltage between live wire and neutral wire is constant, the main current I = p/u ... When the more electrical appliances are connected in parallel, the greater the total power P and the greater the current I, which is the same as the result of short circuit.

The current I is large enough to heat the fuse and automatically cut off the circuit. If there are several high-power appliances connected at home, remember to stagger the use time. Third, the common sense of safe electricity use.

1, cause of electric shock: the human body is a conductor, and the resistance is about 1000 ohm (only varies from person to person). When people get an electric shock, the current will flow into the earth through the human body, and the human body will directly or indirectly touch the fire line, and people will get an electric shock accident. When the current flowing through human body increases to 1 mA, people will feel numb. When the current exceeds 8~ 10 mA, it is difficult for human hands to leave the charged body. When the current passing through the human body reaches 100 mA, people will suffocate and stop their heartbeat in a short time.

Therefore, the main cause of electric shock death in human body is that large current passes through human body. Practice has proved that only the current not higher than 30~40 mA and not higher than 36 volts is safe.

2. Form of electric shock: (1) Single-line electric shock: people standing on the ground touch the fire line or touch objects connected with the fire line. (2) Double-line electric shock: People get an electric shock when their hands touch the live wire and the ground wire respectively.

(3) High-voltage arc electric shock: People get close to high-voltage lines (or high-voltage charged bodies), causing air arc discharge and getting an electric shock (lightning is the same). (4) High-voltage step voltage electric shock: When a person walks into the place where the high-voltage line falls, the step voltage between the front and rear legs exceeds 36 volts and he gets an electric shock.

3. Rules for safe electricity use: Do not touch low-voltage charged bodies (such as 220 volts) and do not approach high-voltage charged bodies. 4. Electric shock first aid: (1) cut off the power supply quickly (turn on the main brake or switch); (2) Turn on the power cord with a dry stick and a bamboo stick, so that the person who gets an electric shock can quickly disconnect the power supply; (3) In case of electrical fire, all parties must cut off the power supply first, and then splash water to put out the fire; (4) Carry out artificial respiration rescue.

8. Common sense of safe electricity use in office buildings in summer (2000 words)

In hot, humid and rainy summer, we should pay attention to the safety of electricity consumption at home. The following matters should be paid attention to in the common sense of home safe electricity use in summer: 1. Don't buy fake and shoddy "three noes" household products. In family life, if electrical equipment, lamps and other electrical appliances need to be installed, they should be installed by qualified electricians. In the process of use, when electrical equipment fails, it should be repaired by qualified electricians. 2. Consciously observe the safe use. It is forbidden to pull wires and install electric furnaces privately. When repairing household appliances, you must first disconnect the power supply. Third, when using household appliances, there should be a complete and reliable power cord plug. All household appliances with metal shells should be protected by grounding. The electric light line should not be too long, and the lamp holder should not be less than 2 meters from the ground. The lamp holder should be fixed in one place to avoid electric shock. Four, air conditioning, electric fans, refrigerators and other electrical equipment with metal shell, should be grounded in accordance with the provisions. The installation and maintenance of grounding wire should be carried out by electrician. Don't touch live equipment with wet hands, and don't wipe live equipment with wet cloth. 5. Choose the fuse according to the wattage of the electrical equipment, and don't change the specification of the fuse without authorization because of the high power consumption in summer. If the fuse is blown frequently, a qualified electrician should find out the reason and eliminate the fault. 6. Don't pull the wires around. Don't touch live equipment casually. Switches and fuses can be installed on the ground wire and neutral wire. It is forbidden to connect the ground wire to the tap water and gas pipeline. 7. When the power cord of household appliances is damaged, it should be replaced immediately or wrapped with insulating cloth. When moving electrical equipment, you must turn off the switch first, and then move the equipment. It is not allowed to move with electricity. After the electrical equipment with metal shell such as motor is moved to a new location, the grounding wire should be installed first, and the equipment should be inspected to confirm the equipment.