Fire accidents occurs very month, every day,even every hour. In this situation,it is necessary to regularly check and repair household appliances and replace aging household electrical wires in time to effectively reduce the incidence of fires.
Wiring of the meter box in the house is aging, and there are too many debris on the wires near the meter box. It is very likely that the fire caused by the short circuit of the wire.
Many fires were caused by the aging of Electrical Wire . Firefighters remind that the electricity consumption in summer is large, and attention should be paid to the safety of electricity and fire prevention. In addition to regular maintenance of circuits and timely replacement of aging wires, daily electricity usage habits can also effectively prevent home fires. For example, if you don’t use electrical appliances, you must cut off the power in time, and you must turn off the main circuit switch when you travel for a long time. In summer, the temperature is high, and it is critical for TVs and computers to run for a long time. Try to avoid starting at the same time; the meter is exposed to rain, which may cause fire, etc. In addition, the electrical wire must not be extinguished with water to avoid the risk of leakage.
Attention should be paid to household wire and cable to avoid potential safety hazards:
In the process of home decoration, circuit modification is usually necessary, and there are many safety problems caused by the modification. The modification of electrical wiring is now almost a common phenomenon, mostly because of the common problems considered by the original building, and when specific to each family, the circuit must be modified according to its own use.
Generally speaking, the changes of electrical facilities are mainly manifested in the aspects of increasing the load and changing the line direction. When it comes to the original pipeline, be careful not to damage it during picking.
The problem of unsafe electricity use in the decoration can easily cause accidents by overloading,heating of the electricity and connectors, as well as line leakage and short circuit. In addition, most of the materials used in the decoration are flammable, so you should be cautious when changing electrical facilities, otherwise it will leave a fire hazard.
In addition to potential fire hazards, electrical wiring changes can also cause problems such as weak television signals and interference with telephone reception if not paid attention, which will often have a long-term adverse effect on the life of the owners.
In order to avoid hidden dangers caused by household electrical wiring changes pay attention to the following issues.
1. Choose copper wire as wire
Generally speaking, copper wire should be used when selecting wires, and aluminum wire should not be used. Due to the poor conductivity of the aluminum wire, the wire is prone to heat during the electrification process and even cause a fire.
When wiring, you must consider that wires of different specifications have different rated currents, and pay attention to their rated currents to avoid “small horse-drawn carts”, which may cause hidden dangers caused by long-term overloading of the line.
Because laying wires belongs to the category of concealed projects, the industry mainly checks and accepts wire laying procedures in time, and every circuit must be carefully checked to reduce hidden dangers.
2. Wiring should use threading pipe
The power supply is directly hidden in the wall, which is equivalent to a time bomb lurking in the home, which may leak electricity at any time and cause danger.
Therefore, during construction, attention should be paid to not directly digging grooves in the wall to bury the wires, and the threading tube set produced by a regular manufacturer should be used. The threading pipe is designed to protect the hidden line from being damaged. If the threading pipe is not covered or used inappropriately, the possible damage to the line cannot be better avoided during construction or in future use. This may leave hidden dangers.
In order to avoid hidden dangers caused by threading pipes, several issues should be paid attention to during construction. First of all, the concealed line of the wall uses PVC hard line pipe, pay attention to matching with the line number. Secondly, the ground routing should consider that it will be under pressure for a long time in the future and will be affected during construction. Therefore, it is better to use galvanized iron pipes and fix them well.
It is also important to note that when using threading pipes, different lines cannot run the same pipeline. If the TV antenna, telephone line and power distribution line are threaded into the same conduit, the reception of TV and telephone will be interfered, and the use of these devices will be affected. TV antenna lines and telephone lines must go through separate conduits.
3. Be cautious when handling joints
Too many line joints and improper handling of joints can cause hidden dangers. Some lines are too long, and some joints will inevitably be produced during construction. As the construction personnel are affected by their technical level, coupled with the reason of not having a strong sense of responsibility, they may not handle the wiring, insulation and moisture-proof treatment on the street, which may cause open circuit, short circuit and other phenomena. If the wall is wet, the wall becomes charged, which can cause serious danger to people.
In order to avoid such hidden dangers, it is generally necessary to minimize the number of joints in the circuit. If wiring is necessary, the power distribution line must be well connected, insulated and moisture-proof. If conditions permit (subject to the appropriate engineering quotation), you can also “wash tin” or use wiring terminals. In addition, it is better to use a splitter or junction box for the coaxial cable connection of the TV antenna, and the telephone line is similar to the TV line.
It should be noted that it is not advisable to use “convenient black tape” to connect decoration wires. If you want to be safe in the future, throw out the black tape.
4. Destruction of subsequent construction
The completed circuit is damaged by subsequent construction, which will also cause hidden circuit problems. Common situations mainly include: the wall line is interrupted by an electrical hammer, and the air nail gun penetrates the PVC line pipe or sheath line when paving the floor. Although these problems do not seem to be the problems of electrical construction personnel from the surface, as electricians, in order to perform their duties more comprehensively, they must pay attention to this aspect. Nowadays, the usual practice is to mark the line as a reminder when the line is concealed, so as to avoid being inadvertently damaged by the construction personnel of the next process.
5. Closed main switch
Some owners think that the position of the master switch is obvious when decorating. It affects the appearance, so the main switch is hidden through some designs, leaving hidden fire hazards that are difficult to detect.
Owner Jack almost caused a disaster because of such hidden dangers.
When Jack was decorating, he felt that the main switch was too ugly in a conspicuous location, so the carpenter made a cabinet and sealed the main switch inside. Once, when Jack turned on the air conditioner, he heard a faint sound, and at the same time smelled a strong burning smell. Jack didn’t think about it, maybe the circuit was on fire, and immediately wanted to find the master switch. Next, she had forgotten that the main switch was in the cabinet door. After finally remembering, I couldn’t open the cabinet door anyhow. Later, when I opened the cabinet door and found the switch, a fire was avoided. After that incident, Jack insisted on dismantling the cabinet, letting the main switch be exposed, saying that this was safe. Thinking back to that terrible experience, Jack still has lingering fears.
6. The electrical concealed project must be accepted and signed.
Some owners often entrust all hydropower projects to decoration companies. The requirements for hydropower projects are very high, and the decoration staff of some decoration companies are not necessarily very professional. They are usually sloppy on concealed projects, leaving the owners unknowingly Hidden dangers. Generally speaking, wire concealed projects must insist on acceptance and signature to ensure that no safety hazards are left in the process. Checking these hidden circuit projects should pay attention to the materials and brands of the wires used, as well as the handling of the connectors and the quality of the threading pipes. If the owner is not proficient in circuit knowledge, it is better to hire a professional supervisor or electrical expert for acceptance. Don’t pretend to understand.
7. The circuit diagram is related to the safety of the circuit.
It is necessary to obtain the as-built drawing of the circuit project from the decoration company in time, which will help prevent hidden dangers of the circuit system within a certain limit. At the same time, if you have this circuit diagram, if you want to update or upgrade the circuit in the future, you will have a certain foundation for transformation. Nowadays, many savvy owners not only ask for the electrical as-built drawings when the construction is completed, but also at the beginning of the construction, they also need to see whether there are detailed circuit design drawings and calculate the relevant data.
8. Electrical materials should choose products from regular manufacturers.
Although the electrical engineering circuit does not play a big role in improving the beauty of the home, for the safety of living, it is still necessary to buy the products of those regular manufacturers. The quality of products produced by different manufacturers are generally quite different. When choosing materials such as threading pipes, wires, and junction boxes, it is better to buy them at regular supermarkets.
In short, the laying of electrical wiring is a process that is easy to leave hidden dangers, and the industry should pay enough attention to it.
Before the renovation of the new house, you should first understand the power configuration of the property project, how much the meter is, what is the capacity of the existing wire, and then make a plan for the number of electrical appliances that match it. overload. If your developer is a civil residence designed and constructed in accordance with the new national electricity standards, there is generally no major problem, but if it is an old house renovation, the circuit should be allocated reasonably.
In the process of home decoration, circuit modification is usually necessary, and there are many safety problems caused by the modification. Generally speaking, the changes of electrical facilities are mainly manifested in the aspects of increasing the load and changing the line direction. When it comes to the original pipeline, be careful not to damage it during picking. The problem of unsafe electricity use in the decoration can easily cause accidents caused by overloading of the load, causing heating of the electricity and connectors, as well as line leakage and short circuit. In addition, most of the materials used in the decoration are flammable, so you should be cautious when changing electrical facilities, otherwise it will leave a fire hazard.
Commonly used circuit distribution methods are: one socket, one lighting, and one air conditioner. Calculate the total electrical load according to the capacity of each circuit, and check the size of the home wire. For large-area rooms, you need to check whether the original wires meet the needs of modern life. If the cross-sectional size of the existing wires is less than 2 square millimeters of copper wires or less than 4 square millimeters of aluminum wires, all of them need to be replaced, otherwise Several air conditioners may switch off as soon as they are turned on at the same time, especially if users who have bought cabinet air conditioners, they will not be able to use them normally if they do not change their cables. For high-capacity electrical appliances above 1000W (such as air conditioners, refrigerators, microwave ovens, etc.), dedicated circuits and sockets should be used.
When decorating and wiring, find an electrician with a professional certificate to operate, the safety factor will increase a lot. In order to reduce the hidden dangers of no leakage, overload and electrical shock, it is necessary to install a “leakage circuit breaker” on the necessary circuit of the residential distribution panel. Most new properties have installed new electrical meters and “leakage circuit breakers” for the owners. “Circuit breaker”, but it is necessary to install a “leakage circuit breaker” to ensure safety and adapt to the ever-increasing electrical equipment.