Is it safe to lay wires in the wall?
Electric wires are essential for every household and are used frequently in our daily lives, so their risk factor is relatively high. That is why we must choose good electric wires. So what are the precautions for buying electric wires?
1. Depend on the load capacity
The power consumption in the home is sometimes large and sometimes small, and is in a fluctuating state. When the power consumption is large, it may be used together with TV, air conditioner, computer, lamp, water dispenser, refrigerator, hair dryer, etc. At this time, if the purchased wire has a weak load capacity, and the weather is hot in summer, the wire will heat up when it is overloaded, which may cause serious consequences such as fire.
2. Waterproof
The outer packaging of some wires is not tight, and it is easy to deform and crack. If there is a rupture and leakage, it is likely to cause the electrical appliances to burn out, short circuit, and even cause fire and casualties. Therefore, the wire must be selected with a hard outer skin and good waterproof performance.
3. Conductivity
There are many types of wires on the market, and the conductors have copper cores and other materials. Among the many types, copper core wires are the most practical, especially for interior decoration. However, copper core wires can be subdivided into several types, including large radius copper cores and multi-wire copper cores.
4. The main line should be thick core
The main line refers to the two main wires from the main power supply to all electrical appliances. The main line must be made of thick copper core wire, because the main line carries the charge of each electrical appliance, and requires a thick copper wire with better performance. If it is a bypass, you can choose a multi-core wire.
So what are the tips for buying wires? 1. First of all, you have to see if the product has a certificate of conformity. For example, if you buy wire products in China, you have to see if there is a CCC certification mark, because wire and cable products are national mandatory safety certification products, and all manufacturers must obtain the "CCC" certification certified by the China Electrical Product Certification Committee. So as long as there is a "CCC" certification mark on the certificate of conformity or product, everyone can buy it with confidence. 2. You have to look at the inspection report. Wires and cables, as products that affect personal and property safety, have always been listed as the focus of government supervision and inspection. Regular manufacturers need to accept inspections by supervisory departments on a periodic basis. 3. Look at the packaging. All regular enterprises that produce products that meet national standards attach great importance to the packaging of the wires and cables they produce. When purchasing, pay attention to exquisite packaging, clear printing, and complete model specifications, factory name, and factory address.
When installing wires and cables, you should also pay attention to the following issues:
1. When installing wires, pay attention to the connection method. During the installation of wires, avoid the appearance of connectors. If the connectors appear, it will cause considerable resistance, and the wires will heat up. If the wire connector appears, in order to prevent accidents from happening again, the wire joints should be wrapped tightly with insulating tape.
2. When installing wires, pay attention to choosing the appropriate installation method. There are two different methods for installing wires: concealed installation and open installation. Concealed installation refers to the laying of wires in places such as ceilings or walls. At this time, for safety reasons, professional personnel must be asked to operate. Open installation refers to laying along the surface of walls and ceilings. When performing open installation, the wires cannot be folded or squeezed, and the wires must be fixed firmly.
3. When installing wires, pay attention to the correct use of ground wires. For example, when some household appliances: refrigerators, washing machines and other appliances use three-phase plugs, be sure to install reliable ground wires.
