How to choose the right size and good quality wires and cables for home decoration?

When choosing wires for home decoration, you should choose the right wire diameter according to your own power consumption, use, and branch, such as the wire diameter of the lamp can be selected according to your needs, and the general socket is used, and the air conditioner, kitchen, and bathroom socket are used for 4cm.

Zhongbang wire and cable only produces high-quality products, and the national standard is only our bottom line. Paying attention to the corporate philosophy and corporate culture is the ultimate test of product quality!

Home Improvement Choice Wire: 1The indoor lamps are squared; The socket is 4 square. 2.It is best to choose brand refractory BVR wire, such as Nanping Sun Wire, Shanghai Daike, Shanghai Gaoqiao, etc. The line of Lanzhou Zhongbang can also be used, but there are many fake ones in the market.

Be waterproof and durable.

The purchase of wires is generally considered from the following points:

1. Conductor wire diameter - consumers should pay attention to whether the conductor wire diameter is consistent with the cross-section indicated on the certificate, if the conductor cross-section is small, it is easy to cause short circuit due to wire heating. It is recommended that the wires used in household lighting lines should be square millimeters and above; Household appliances with large power such as air conditioners and microwave ovens should use wires with square millimeters or more.

2. Wire surface mark - according to the national standard, the wire surface should have the continuous mark of the manufacturer's name, product model and rated voltage. This is conducive to finding the manufacturer in time when problems occur during the use of wires, and consumers must pay attention to this when purchasing wires. At the same time, consumers should pay attention to whether the name of the manufacturer, product model, and rated voltage indicated on the certificate are consistent with the printed mark on the surface of the wire, so as to prevent counterfeit products.

3. Appearance of wires - consumers should pay attention to the appearance of wires when purchasing wires, the appearance of wires should be smooth and flat, the insulation and sheath layers should not be damaged, the logo printing should be clear, and there should be no greasy feeling when handmolding wires. From the cross-section of the wire, the thickness of the insulation or sheath should be uniform on the entire circumference of the wire, and the insulation or sheath should not be off-core, and the insulation or sheath should have a certain thickness.

The wires produced by Guangdong Suixing Cable meet the national standard, the length is 100 meters, and it is recommended to buy one for ten.

How to choose the cord for home decoration? How to distinguish the advantages and disadvantages of wires? Distinguish according to the total weight; For better cable products, the net weight is more uniform, that is, in a fixed and immovable category.

If the line section is flat, the net weight of 100 meters is about about kilograms. The total weight of 100 meters is about up and down. For example, if the cable is 4 flat, the total weight of 100 meters is about kilograms, on the contrary, if the net weight of the cable is not enough, indicating that the length is not enough, there may be too much residue.

.Observe the quality of electrical conductors; Metal conductors are the key cost of cables, so many manufacturers are shoddy from these aspects. A better cable is a better copper cable, which is dark purple and bright and soft to the touch.

On the contrary, if the core of the wire is black and purple, it is dark, indicating that there is a lot of residue, the compressive strength is not enough, and it is easy to break if it is brokenObserve the product information and then you can identify it on the outer packaging of the cable, the outer packaging of the better cable is sound, and the outer packaging has detailed product information. Such as the name of the manufacturer, the date of manufacture, the product model, the registered trademark and the working voltage and other information, and the handwriting is clear.

On the contrary, if the outer packaging of the cable is casual, and the product information; less, judged to be a fake and shoddy cable.

.Observe the eccentricity of the cable; You can extract a section of the cable to see if the core is vertically centered, and the core of the better cable is vertically centered, on the contrary, if the cable is eccentric, it indicates that the level of production and manufacturing is low, and once the power consumption is large, the thin surface is easy to penetrate. the length of the cable and the size of the core; Finally, it is distinguished from the length of the cable and the size of the cable diameter.

The length of the cable and the size of the cable diameter are all in line with the national industry standards. The length difference shall not exceed 2%, and the cross-sectional deviation shall not exceed. On the contrary, if the outer packaging of the cable indicates 100 meters, square meters, and the specific and accurate measurement is only 90 meters, 2 square meters, it indicates that it is a fake and shoddy cable.

Look at the appearance of the cable, the better cable is packaged in a coil, and the appearance also has a certificate of conformity and specifications. Accurate measurement, use vernier calipers to measure the core, such as a flat cable wire, with a core aperture of . Flame retardant grade, take the lighter to ignite the cable, if the flame will automatically go out, indicating that the cable sheath is up to standard, on the contrary, it is not passing.

The quality of the core is that the copper wire of the better cable is dark purple and the material is soft. On the contrary, the copper wire of the cable is black and purple, which is easy to break.

It is recommended to purchase according to the principles of health and environmental protection, safety and fire prevention, energy saving and application, and comprehensively consider the brand, model specification, quantity, performance, color and other factors.

According to the cross-sectional area of the copper wire, it can be put.

Wires are divided into different types, but how should we choose in the specific decoration process? Today we will take the kitchen as an example to explain the choice of wires.

There are many electrical appliances needed in the kitchen, so there are many small electrical appliances in the kitchen, and the square or square is enough for a small electrical appliance, but in actual life, multiple electrical appliances are generally turned on at the same time, and the square can not meet the demand, so I recommend that the kitchen line choose 4 square meters, because it is not only enough, but also to prepare for the high-power electrical appliances that may be used in the future.

Small appliances like rice cookers are pretty much the same, but you can connect 4 square wires to the main line and square wires to the branch wires, which can save both costs and electricity.

Some families will also put high-power appliances such as refrigerators in the kitchen, it needs independent branches, because it runs around the clock, if it shares a line with other appliances, the current at the moment of switching will become larger, and the refrigerator branch line will be affected, and this situation will reduce the life of the refrigerator in the long run.

Therefore, it is best to use a separate branch line for high-power appliances such as refrigerators.

Although there are not many lighting facilities in the kitchen, they also need to be separated separately, and they cannot be connected with the socket, and there will be a ground wire in the socket, and it will be very wasteful if the lighting is connected.

Some households have a lot of household appliances, and there are many high-power appliances. I recommend setting up a separate distribution box in the kitchen, so that even if there is a short circuit, the other wiring will not be affected.

CCC certification.

There must be CCC certification mark on the mark wire, wire and cable products are national compulsory safety certification products, all production enterprises must obtain the "CCC" certification certified by the China Electrical Products Certification Committee, obtain the "CCC" certification mark, and have the "CCC" certification mark on the certificate or product. The wire is related to the safety of electricity, and the bad wire will affect the safety of our life and property, so we must choose the wire product with the CCC certification mark.

Wire appearance. The appearance of a good wire product should be smooth and round, and the color is uniform, so we should disassemble and check the wire when purchasing to see if the appearance is uniform.

Product Certificate.

The wire product certificate will be the "CCC" certification logo, trademark, model specification, rated voltage, length, inspection, manufacturing date, implementation standard, factory name, factory address, ** and other logos are printed clearly, and in line with the product, these will be the production products of regular manufacturers, we should see clearly when purchasing.

Wire conductors. The conductor of the wire should be shiny, and the DC resistance and conductor structure size should meet the requirements of the national standard. The wire and cable products that meet the requirements of the national standard, whether it is an aluminum conductor or a copper conductor, are relatively bright and oil-free, so the DC resistance of the conductor is fully in line with the national standard, with good conductivity and high safety. How to purchase wires.

Wire specifications. Wire specifications are very important, and generally household power cords should use BVV2 and BVV2 type wires. BVV is the national standard code, which is the copper sheathed wire BVV2 and BVV2, which represent 2 cores square millimeters and 2 cores square millimeters respectively. In general, BVV2 is used as the main line and trunk line, and BVV2 is used as a single electrical branch line and switch line.

BVV2 4 for one-way air-conditioning line, with dedicated ground wire.

Of course, the thickness of the wire is selected according to the current of the electrical equipment and the current carrying capacity of the wire, and the wire laying method (such as whether it is pipe-wearing, overhead, etc.), the environment and temperature of use should also be considered.

When we choose the thickness of the wire, we must first know an important parameter is the current, the current is determined according to the power and voltage of the electrical equipment, the formula of the current:

Current calculation of common single-phase pure resistance loads (such as electric water heaters, incandescent lamps, etc.): i p u p represents power, u represents voltage, and i represents current.

Current calculation for single-phase inductive loads (e.g. single-phase motors, single-phase transformers): COS represents the power factor.

Current calculation for three-phase inductive loads (e.g. three-phase motors): i p u 3 cos

For example, for a 30kw motor mains three-phase power supply, how big wire should be used first? According to the formula i p u 3 cos i = 30000 380 The current carrying capacity of 380 wires is selected with 10 square copper core wires.

If the ambient temperature is high and the pipe is protected, the current carrying capacity of the selected wire is calculated at a 20% discount.

It is recommended to buy the national standard CCC certified line. Because the current domestic wire standard is CCC certification.

It is recommended to go to the official store to buy the purchase channel, and ask whether it is the national standard foot flat rice when buying. In this way, after buying it back, you can use calipers to measure the outer diameter of the cable and the number of copper wires, and you can refer to the number of standard copper wires on the Internet for comparison.

The correct selection of household power cords not only directly affects the use effect and life of various household appliances, but also relates to the safety of life and property of each family, so it is necessary to understand the correct selection of household power cords. Common household power cords include RVB-70 PVC insulated parallel cord and twisted pair cord, RVZ-70 PVC insulated sheathed cord, RFB RFS type nitrile PVC composite insulated parallel cord and twisted pair cord, RHF type neoprene cord, etc. Different power cords should be used for different household appliances.

The core wires of the above-mentioned types of wires are multi-strand copper wires, and the nominal cross-sectional area ranges from 0 2 to 2 5mm2. The integrated plug wire for general lighting, cassette recorder and TV should be selected RVB-70 and RVZ-70 parallel or twisted pair, and its cross-sectional area should be within the range of 0 75 - 1 0mm2;Rice cookers, air conditioners, ventilation fans, electric fans, refrigerators, washing machines and other electrical appliances that need to be protected and grounded and have a large electrical load, the power cord and active socket should be selected RVZ-70 three-core sheathed wire, and its cross-sectional area should be 0 75-1 5mm2;Electric irons, about 100W solder electric ferrochrome, hand drills and other mobile electrical appliances and mobile sockets with strong mobility and heat source or electric sparks, it is advisable to choose rhf type wire, and its cross-sectional area should be 0 75-1 0mm2. When decorating the house, the buried pipe dark wire needs to be BV-70 PVC insulated copper core hard wire, and its cross-sectional area is about 1 0-2 0mm2 to ensure a long enough safe service lifeAs for the mobile socket connection used in humid environments such as kitchens and bathrooms, it is advisable to choose RVZ-70 sheathed cable.

Choose the production of regular manufacturers, check whether the rubber of the line is uniform and the rubber is not easy to burn, and there is no cracking. Copper wire has good toughness. Think carefully about the length, and choose different lengths of the whole reel of wire when purchasing.

The choice of wire is standardized, and it needs to be related to the power used.

Now the general lighting is squared. The air conditioner and socket are generally squared.

The general approximation is that 1 square wire can be subjected to 1 kW of power, and so on.

Lighting wires in your home.

Lighting wires are squared. Generally, the power of home lighting load is not too large, and there are almost 6-8 lamps in the dining room, living room, main and secondary bedrooms, balconies, kitchens, and bathrooms, which are controlled within 1500 watts, and the square national standard copper wire is enough.

2] Wire for water heater socket.

The water heater is relatively large in household appliances, it is recommended to use 4 square wires, 4 square copper core wires can allow a maximum load of 7000-8000 watts, and the limit value is 8000 watts. Therefore, even if the water heater or bath bomb is turned on at the same time, there will be no major problems, and even if it is overloaded, it will only trip.

3] Wires for air conditioner outlets.

The air conditioner is also a high-power electrical appliance at home, so the socket is also a 4 square wire, of course, you can also use 6 square wires, but the construction difficulty of doing so will increase, and the area occupied by the socket bottom box will also become larger, and the wiring will become a very troublesome thing.

4] Wires for ordinary sockets.

The ordinary socket at home can use square wires, and the general load is controlled within 2500 watts. However, if you often use high-power electrical appliances, it is still recommended that you choose a 4 square wire.

5] Wires for kitchen outlets.

It is recommended to use 4 square wires for kitchen sockets, on the one hand, because there are many appliances in the kitchen, and on the other hand, because of the high frequency of use. Some kitchens are a square line to the top, and then arrange the socket below, with a square wire to connect the fire, all the sockets are connected from the square line separately, therefore, this practice is no problem.