1. Water and electricity safety knowledge news (safety knowledge of water and electricity consumption)
Water and electricity safety knowledge news (safety knowledge of water and electricity consumption) 1. Safety knowledge of water and electricity consumption
L. Know the main switch of power supply and learn to turn off the main power supply in an emergency.
2. Touch and probe the inside of the power socket without hands or conductive objects (such as wires, nails, pins and other metal products). 3. Do not touch the appliance with wet hands or wipe it with wet cloth.
4, electrical appliances should be unplugged after use; Don't pull the wire hard 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 is peeling off, so it is necessary to replace the new wire in time or wrap it with insulating tape. 5, found that someone get an electric shock to try to turn off the power supply in time; Or use dry wooden sticks and other things to separate the electrocuted person from the charged electrical appliances, and don't use your hands to save people directly; Younger students should call adults for help when they encounter this situation, and don't handle it by themselves to prevent electric shock.
6. Do not disassemble or install power lines, sockets and plugs at will. Even simple things such as installing a light bulb should be turned off first and carried out under the guidance of parents.
7. It is forbidden to move running household appliances by hand, such as desk fans, washing machines, televisions, etc. 8. It is forbidden to repair live lines or equipment in the home with bare hands and feet.
9. It is forbidden to touch with wet hands or wipe lamps, switches and other electrical appliances with wet cloth. 11. It is forbidden to change the three-eye plug into two-eye plug at will.
11. it is forbidden to pull or connect wires in disorder. 12. It is forbidden to increase electrical appliances on the original line without permission.
2. Safety knowledge of water and electricity use
1. Place electrical appliances correctly to avoid over-time use
Electrical appliances should be placed in a place without direct sunlight or darkness, keep good ventilation, let them rest properly for a period of time, try to avoid continuous use for a long time, and it is forbidden to place flammable items around electrical appliances.
2. It is strictly forbidden to use the electrical appliance "with illness"
When the electrical appliance has abnormal conditions, it should be stopped immediately, such as odor, smoke, vibration, increased noise and temperature rise. The power supply should be cut off immediately, and professionals should be asked to repair it. Don't disassemble the electrical appliance by yourself to prevent damage to the internal components of the electrical appliance.
3. Don't touch the live lamp holder, switch and socket with wet hands and wet cloth
When using electric appliances such as iron and hair dryer, people should not leave. Do not privately or ask unqualified decoration teams and personnel to lay wires and connect electrical equipment.
4. The refrigerator should avoid being placed close to the wall.
In humid weather, the wall is heavily wetted, and the parts inside the refrigerator are affected by the small holes in the refrigerator, thus causing the refrigerator to be wetted. Therefore, it is necessary to pay attention to the location of the refrigerator, keep a certain distance between the refrigerator and the wall, and give priority to the location.
5. Don't put the clothes drying rod on the wire
When drying clothes outdoors, don't put the clothes drying rod on the wire or transformer bracket, let alone hang the clothes directly on the wire or transformer bracket; Do not climb the tower or erect power lines, communication lines and broadcasting lines on the tower without authorization, and install broadcasting speakers.
6. Don't build a building in the power facility protection zone
Overhead power lines may be discharged or disconnected. Once an accident occurs, residents under and near the lines will be in danger of electric shock. Moreover, cranes, excavators, pump trucks and other construction machines and tools in the construction process are likely to cause line collision and personal injury accidents.
People's Daily Online-Tips for Safe Electricity Use in Winter
People's Daily Online-If you don't pay attention to the common knowledge of safe electricity use, you may lose your life sometimes!
3. Write six common words about safe electricity use
1. The insulation of power lines and electrical equipment must be good, and the live parts such as lamp holders, sockets and switches must never be exposed to prevent electric shock.
2. Don't pull and connect wires randomly to prevent electric shock or fire.
3. Don't stand on the wet ground and move charged objects or wipe the charged household appliances with a damp rag to prevent electric shock.
4, fuse selection should be reasonable, avoid using copper wire, aluminum wire or iron wire instead, in case of fire.
5. Household appliances used, such as refrigerators, freezers, washing machines, etc., should be equipped with grounding wire sockets according to the requirements of product use.
6. When repairing or replacing the lamp holder, even if the switch is off, do not touch it directly by hand to prevent electric shock
4. Common sense of electricity safety
tips on safe electricity use in life
11. Every family must have some necessary electrical appliances. Such as test pens, screwdrivers, rubber tongs, etc. It is also necessary to have various specifications of fuses and fuses suitable for household appliances.
12. Every household electric meter must be equipped with a master fuse, and a master breaker and a leakage protection switch should be installed behind the electric meter.
13. It is forbidden to replace the fuse with copper or iron wire under any circumstances. The size of the fuse must match the capacitance. When replacing the fuse, remove the porcelain box cover and replace it. Do not tie the fuse directly in the porcelain box, and do not replace the fuse when it is live (without opening the breaker).
14. After blowing the fuse or taking care of the leakage, You must find out the reason before turning on the power switch again. Under no circumstances should you use wires to short-circuit the safety or force the tripping mechanism of the leakage switch to send electricity.
15. When buying household appliances, you should carefully check whether the technical parameters (such as frequency and voltage) in the product manual meet the local power consumption requirements. It is necessary to know how much power is consumed and whether the existing power supply capacity of the family meets the requirements. In particular, whether the wiring capacity, plugs, sockets, fuses and meters meet the requirements.
16. When household distribution equipment cannot meet the capacity requirements of household appliances, it should be replaced and modified, and it is forbidden to make do with it. Otherwise, overload operation will damage electrical equipment and may also cause electrical fires.
17. When purchasing household appliances, you should also know their insulation performance: general insulation, reinforced insulation or double insulation. If grounding is used for leakage. Grounding wire is essential. Even for electrical equipment with enhanced insulation or double insulation, it is beneficial to do protective grounding or zero connection.
18. For household appliances with motors (such as electric fans, etc.), you should also know their heat resistance level and whether they can run continuously for a long time. Pay attention to the heat dissipation conditions of household appliances.
19. Before installing household appliances, you should check the requirements of the product manual on the installation environment, paying special attention to the possible conditions. Don't install household appliances in an environment with damp heat, dust or flammable, explosive and corrosive gases.
11. When distributing electricity indoors, the phase line and the zero line should be clearly marked, and they should be consistent with the wiring of household appliances, and they should not be connected wrong.
5. Common sense of electricity safety
1. Avoid overloading the household power cord, and replace the worn and aging power cord in time to avoid accidents.
2. The general insurance of household power supply and household insurance should be equipped with a desk to protect household appliances.
3. To connect the temporary power supply, use qualified power cord, power plug and socket to be safe and reliable, and the damaged ones cannot be used. The power cord connector should be wrapped with adhesive tape.
4. when the temporary power cord is close to the high-voltage transmission line, it should keep a sufficient safe distance from the high-voltage transmission line (1.7m below 11KV, 1.5m below 35KV1, 1.111kVI.5m, 221KV3 and 511KV5).
5. It is forbidden to connect wires from public lines without permission.
6. The line connector shall ensure good contact and reliable connection.
7. For room decoration, 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.
8. When using electric tools such as electric drills, insulating gloves must be worn.
9. When household appliances catch fire, cut off the power supply before putting out the fire.
11. The wiring of household appliances must be ensured to be correct. When in doubt, you should ask a professional.
11, household electricity should be installed with over-voltage protection debugging qualified leakage protector. To ensure the personal safety when using household appliances.
12. When household appliances are used, they should have a good shell grounding, and a public ground wire should be installed indoors.
13, wet hands can't touch live household appliances, can't wipe household appliances in use with wet cloth, and you must stop the power supply before repairing household appliances.
14, household electric heating equipment, heating equipment must be far away from gas tanks. When the gas pipeline finds gas leakage, it should be ventilated by opening the window first, and the power supply cannot be turned on, and professionals should be asked to repair it in time.
15. When using electric irons, soldering irons and other electric heating devices, you must stay away from flammable materials. After use, cut off the power supply and unplug the bolt to prevent accidents.
16. If household appliances are found to be damaged, please ask trained professionals to repair them. Don't disassemble them yourself to prevent electric injury.
17. It is forbidden to drill wells, erect TV antennas and fish under high and low voltage wires.
18. When a broken wire is found, whether it is charged or not, it should be regarded as charged. You should keep a sufficient safe distance from the broken point of the wire and report it to the relevant departments in time.
19. If someone gets an electric shock and can't directly touch the person who gets an electric shock, use a wooden stick or other insulation to pick up the power cord, so that the person who gets an electric shock can be separated from the power supply.
21. The power plugs and sockets should be arranged out of the reach of children, and the common sense of safe electricity use at home should be often explained to the elderly and children at home to enhance their self-protection ability.
21. If the entrance line is found in direct contact with trees and buildings, in order to prevent the wires from being worn out, trees should be cut down in time, or insulating sleeves should be added to the entrance line.
22. When walking on urban sidewalks in a thunderstorm, don't touch trees, poles and pole stays with your hands to prevent electric shock.
23. Don't get close to or touch the live parts of any electrical household appliances, especially the high-voltage output parts of black-and-white and color TV sets, so as to avoid electric injury.
24. If the power switch shell and wire insulation are damaged or incomplete or the live part is exposed, you should immediately find an electrician to repair it, otherwise it is not allowed to be used.
25. Don't use the same cable for the convenience of the telephone line and the power line, but use different wires or cables respectively, and lay them at a certain distance.
26. You can't use a steel tape measure, a tape measure or a wire ruler to measure live household appliances or around worn wires.
27. It is forbidden to tie animals, ropes and cool things on the stay wires of electric poles, so as not to cause electric shock.
28. It is forbidden to use 221V power supply voltage for household doorbells and hair clippers, and safe voltage below 36V should be used.
29. When taking a bath, the household electric shower must first disconnect the power supply and have reliable measures to prevent sudden electrification.
31. We should advocate civilized and law-abiding use of electricity, and put an end to electric shock in all forms of illegal and illegal stealing.
6. What are the common knowledge of household electricity safety?
(1) Use the power cord correctly. The main line of household power cord should be at least 4mm2 copper core wire, aluminum skin wire or plastic sheath line, and good quality flexible cord should be used for frequently moving electrical equipment. The wires with serious aging should be replaced in time.
(2). Do not touch electricity with metal; Don't touch the power when your hands are wet.
Metal objects are conductive. At any time, we should not touch the power supply with metal objects, such as screwdrivers and nails, to avoid electric shock. It is dangerous for us to touch the power supply with our hands with water, including wet towels, and it is not acceptable.
(3) Use household appliances correctly. Read the instruction manual of electrical appliances carefully, and pay attention to its precautions and maintenance requirements. Generally, household appliances should not be turned on and off frequently. After use, not only should they be turned off, but also the power plug should be unplugged. If the temperature is abnormal, the power should be cut off for inspection and troubleshooting, and a voltage stabilizing device should be added in the line.
(4) form good habits;
It means that when plugging and unplugging the power supply, you should hold the power supply with your hands instead, which is very dangerous. If the power supply is aging, it is easy to get an electric shock.
(5) do a good job of fire prevention and extinguishing. When people leave home or sleep, check whether the electrical appliances are cut off. In the event of an electrical fire, don't panic. First, switch off the power in time, call the neighbors for help loudly, dial the fire alarm number 119, and at the same time, use water, wet quilts or fire extinguishers prepared at ordinary times to extinguish the fire quickly.
I hope our answer is helpful to you.
7. Basic knowledge of water and electricity
Complete edition of basic knowledge of water and electricity installation 1. Before construction, there must be electrical (strong current and weak current) and water supply and drainage design and construction drawings.
2. It is forbidden to directly lay the conductor in the wall, floor, floor or ceiling without any protection. 3, different voltage, different circuit, different signal lines are strictly prohibited to wear in the same threading pipe.
4, the installation of lamps and lanterns should be carried out after the completion of painting. When installing lamps on brick-concrete structures, it is forbidden to use wooden wedges, and use hooks, bolts or expansion bolts.
there should be no less than 2 bolts (or screws) for fixing lamps. Lamps and lanterns shall not be installed on combustible components.
5. The switches of lamps and electrical equipment must be installed on the "phase line" (that is, the control phase line), otherwise, after the switch is turned off, the lamps and electrical equipment will still be charged, which may easily cause electric shock. 6. There are two protection methods for power system: grounding protection and neutral protection. At present, grounding protection is generally adopted in China.
note that it is forbidden to adopt two protection methods at the same time in the same system, otherwise it will cause safety accidents. 7. It is forbidden to use the mobile switch at the bedside.
if the lamp uses a screw cap, the central spring tongue of the screw cap should be connected to the control phase line. 8, the line interface should be smooth, even the board connection should be firm.
the interface box of the power inlet box should be protected by a protective ring (lock nut). 9. In order to update and maintain the conductor in the future, the radian (i.e. cold bending radius) of the elbow at the corner of the conduit buried in the wall, underground or ceiling should be 5~11 times the diameter of the conduit.
11, it is forbidden to connect wires in the threading tube, that is, if the length of wires is not enough and needs to be extended, the joint of wires cannot be in the threading tube, and wires should generally be connected in junction boxes such as switches, sockets and lamp holders. 11, threading pipe should choose a certain size (thickness), not only to make the wire wear in, but also to leave enough space, so that the heat generated by the wire when passing through a large current can be dissipated.
the ratio of the cross-sectional area of general conductor to the cross-sectional area of threading tube is 1/3~1/2. It is forbidden to block the threading pipe with wires.
12. PP-R pipes and copper pipes can be used as water supply pipes. 13, dark apply water supply pipeline must strictly check whether all connection parts are installed tightly, firmly, in the right direction, and then do water pressure test, test the water for a period of time before being buried.
the pressure test index is generally between 1.8 MPa and 1.1 MPa. 14. The horizontal pipes of drainage pipes shall have a certain slope, and the sockets shall be tightly connected to ensure no leakage.
the spacing between brackets and elevators for fixing pipelines is reasonable and firm. 15, sanitary ware installation position should be accurate, branch, bracket installation level off, firm.
the floor drain should be installed at the lowest point of the ground and recessed into the ground by 5 mm. Oil sludge or silica gel should be used to seal the connection between the toilet and the ground or the nozzle, but cement should not be used, which will expand and cause the toilet.