Buy Wire and Cable These Knowledge Points You Want to Know!

                                                      First tip: first understand the meaning of Aerial Bundled Cable (ABC) BS 7870 Standard

Use code: A installation line, B cloth wire, C Marine cable, R flexible cable, K control cable, N agricultural cable, M coal cable, U mine cable, JK overhead cable;ZC flame-retardant cable, NH fire-resistant cable, WD low smoke free halogen cable.

Characteristic code: B flat, R soft, C heavy duty, Q light duty, Z medium duty, S twin type, P shield, L aluminum core, V insulated polyvinyl chloride, YJ crosslinked J polyethylene, H welding machine.For example, WDZN-BYJ stands for polyethylene insulated low smoke no halogen flame retardant wire, its rated voltage is 450/750V.

 

                                                             Second recruit: choose PVC Sheathed Power Cable according to the purpose

When choosing wires and cables, use, laying conditions and safety should be considered.Such as:

According to the different electrical appliances, optional wire, power cord, twisted pair, red and black wire, video cable and so on.

According to the different uses, can choose power cable, fire cable, overhead insulated cable, control cable, etc.

According to different laying conditions, cross-linked cable, armoured cable, aluminum alloy cable, anti-corrosion cable and so on can be selected.

According to the safety requirements, can choose flame retardant cable, halogen-free flame retardant cable, fire resistant cable, etc.

 

 

                                                                            Third recruit: choose cross-sectional area namely specification

The specifications of home wiring have dozens of specifications such as BV2.5, BV1.5, BV4, BV6;BV is a national standard code, and the numbers are our traditional square number of wires. In general, the wires are used as:

1,The 6 square meters are suitable for households, because the demand for land used by households is high.

2, 4 square suitable for the kitchen switch socket separate line and air conditioning water heater line, after all, these are power consumption, the wire specification can carry more electrical appliances as far as possible;

3, 2.5 square wire used in the common switch, socket and lighting main line;

4, 1.5 square for lighting control circuit switch, etc.

The specification of wire and cable is not the bigger the better, choose the right one is good, the specification is too large will only waste electricity

                                                                              Fourth recruit: choose brand heavy service

The safety and reliability of wire and cable should be guaranteed as the common wire in life.Therefore, when purchasing wires and cables, we should start from our own actual situation and buy reliable old brands. We should consider more from the practical aspect, so that quality, price and after-sales service can be guaranteed.

Jin Hautai, Dongguan wire and cable dealer, I hope this article can help you.

National Standard Cable

In today’s wire and cable market, product quality levels are uneven, and production companies are mixed. Many Party A simply uses price as the procurement standard, which breeds a market for substandard products. So that when users are faced with different prices of “national standard cables”, they will be at a loss, not knowing how to identify and buy national standard cables. Today’s article mainly introduces the standards and identification of national standard cables. What kind of cables are produced in accordance with national standards? How to distinguish and distinguish cables of different qualities? What kind of quality is “enterprise standard/non-standard”, “market national standard” and “protected resistance national standard”? No matter you are selling cables , Or purchasing, I believe it will be helpful to you.

What is Aerial Bundled Cable (ABC) HD 626 S1 Standard

The national standard cable, literally understood, is the wire and cable produced in strict accordance with the national standard. my country has clear regulations on the appearance, mechanical strength, insulation of the sheath, pressure resistance, wire resistance and other aspects of the cable. Different types of cables have different national standards, mainly as follows:

Irradiation cross-linked power cable (0.6/1KV) executive standard: GB/T12706.1-2008

Medium voltage cross-linked cable (6/6KV-26/35KV) executive standard: GB/T12706.2-2008

High voltage cross-linked cable (64/110KV) executive standard: GB/T 11017-[/B]2002

Control cable (450/750V) executive standard: GB9330-88

Aluminum stranded wire and steel core aluminum stranded wire (0.6/1KV) executive standard: GB/T 1179-1999

How to identify the (ABC) SANS 1418 Standard

  1. It depends on

See if there is a quality system certification; see if the certificate is standardized; see if there is a factory name, site, inspection stamp, and date of production; see if there are trademarks, specifications, voltages, etc. printed on the wires. It also depends on the cross-section of the copper core of the wire. The high-quality copper is bright in color and soft in color, otherwise it is inferior.

  1. Try

It is recommended to bend a wire head repeatedly by hand. Anything with soft hand feeling, good fatigue resistance, elastic plastic or rubber hand feeling and no cracks on the wire insulator is the best product.

  1. Weighing

Good quality wires are generally within the specified weight range. For example, the commonly used plastic insulated single-strand copper core wire with a cross-sectional area of ​​1.5mm² has a weight of 1.8~1.9 kg per 100 meters; a 2.5mm² plastic insulated single-strand copper core wire has a weight of 3~3.1 kg per 100 meters; poor quality The weight of the wire is insufficient, or the length is not enough, or the copper core of the wire is too much impurity

  1. Look at copper

The copper core of the qualified copper core wire should be purple-red, shiny, and soft to the touch.

The fake and inferior copper core wires are purple-black, yellowish or white, with many impurities, poor mechanical strength, poor toughness, and will break with a little force, and there are often broken wires in the wires.

When checking, you only need to peel off the wire 2cm, and rub a piece of white paper on the copper core. If there are black substances on the white paper, it means that there are more impurities in the copper core. In addition, the insulating layer of fake wires seems to be very thick, but in fact, most of them are made of recycled plastics. Over time, the insulating layer will age and cause leakage.

  1. Look at the price.

Due to the low production cost of counterfeit and shoddy wires, vendors often sell them at low prices under the guise of low prices and good quality when selling.

“Non-standard/enterprise standard/market national standard” and “protected resistance national standard”?

When many sales companies are asked whether they are national standard cables, they often hear words like “market national standard” and “resistance protection national standard”. Many people have a little understanding. What do these vague words mean?

National standard for resistance protection: The cable is used to energize, and the resistance value of the conductor directly affects the conductivity. If the conductor resistance is too large, the conductivity will be poor, and a large amount of heat will be generated when a large current passes, which will cause a fire. At the same time, due to the large resistance, heat will be generated and the power will be consumed inaction.

The resistance-protected cable is to ensure that the resistance value of the cable is in compliance with the national standard, but it does not guarantee that the component materials of the cable are produced in full accordance with the national standard, such as the number of conductor squares, insulation, and sheath. To put it bluntly, it means that the manufacturer can achieve safe use of cables under the premise of reducing material costs through various technological innovations (or means).

Note that two words are used here: innovation and means. Innovation refers to reducing costs through technological innovation, such as current aluminum alloy conductors, special-shaped conductors, etc., such cables reduce the price on the premise of ensuring safe use. Some manufacturers use some illegal means to reduce costs, such as using second-generation materials, reducing conductor purity, etc. Even if the resistance value of such a cable is within the standard range, its use is extremely unsafe. The cable must be checked again and again.

Classification of home improvement wires

BV wire, full name copper core PVC insulated wire, referred to as plastic copper wire. That is, a general-purpose single-core hard conductor non-sheathed cable with a diameter of 1mm or more.
It is suitable for wires used in power installations, household appliances, meters and telecommunication equipment with AC voltage of 450/750 and below. It has the characteristics of acid and alkali resistance, oil resistance, moisture resistance, mildew resistance, and long service life. Because it has a certain degree of hardness, it is more convenient in straightening and folding corners.


BVR wire is generally a wire twisted together by 19 copper wires with a diameter of less than 1mm. It is a copper core PVC insulated flexible wire.
The letter B stands for wiring (for example: make an indoor power line and tack it on the wall);
The letter V-polyvinyl chloride plastic sheath (a V stands for one layer of insulation and two V stands for double insulation), which is a plastic insulation layer.


L stands for aluminum wire, without L stands for copper wire.
The letter R stands for soft wire. To be soft, it means to increase the number of conductors and reduce the diameter of each wire.
It is suitable for the occasions where flexibility is required for wiring and the rated voltage is lower than 450/750 with slight movement. When multiple pipes are pierced at the same time, due to the low hardness, it is easy to turn and convenient for construction. Compared with the hard wire, the production is more complicated, and the high-frequency circuit has a larger carrying capacity than the hard wire.
Classification of common specifications and models of wires
Common specifications of wires are 1.5 square, 2.5 square, 4 square, 6 square, and 10 square. The square of the wire is square millimeters, which is the size of the cross-sectional area of ​​the wire.

Factors restricting the development of the cable industry

The cable industry has developed to now, and the overall size is very large, with a large number of companies. China has surpassed the United States to become the world’s largest cable manufacturer. However, in this rapid development process, many problems have gradually been exposed.
The first problem is that there are few large domestic cable companies, and they lack competitiveness with foreign cable companies in high-end products. Even in 2018 or so, the annual output value of the top ten companies in  ACSR cable production scale is not as good as the total output value of the industry. 20% of the total, which is in sharp contrast with developed countries. However, it is roughly the same as my country’s current economic structure, and it is basically the same as that of other industries.


The second problem is that the homogeneity of products is serious and the market competition is fierce. There are a large number of cable companies in China, most of which are small and medium-sized enterprises. The operation mode, management and technical level of these companies present serious homogeneity problems. The problem of homogenization has aggravated overcapacity. In a homogeneous product market, users are mainly concerned with price, and competition is almost entirely concentrated on price. The greater the surplus of homogenized production capacity, the fiercer the price competition, the thinner the profit, and the more difficult it is for a company to survive.


The third problem is that the pressure of funds is huge. The xlpe cable industry is a typical heavy-material and light-industry industry and a capital-intensive industry. Therefore, the cable industry is always facing the pressure of the capital chain. The most significant phenomenon is the application of many companies. The total amount of money collected accounts for a high percentage of annual revenue, many of which are 30%. This also leads to financial difficulties for companies, and China’s cable industry is mostly small and medium-sized enterprises, so these companies are generally facing financial pressures. The problems of difficult financing, expensive financing, and high financing costs have sharply increased the risks in the capital chain of enterprises. In the past two years, due to the tightening of the entire financial system, many companies have found it difficult to cope and shut down and revert.

Ingenious use of aluminum alloy cables for photovoltaic systems(2)

In the era of low-cost Internet access, the cost of the control system is critical. In the past ten years, the prices of modules and inverters have fallen by 90%, which has contributed greatly to the overall cost reduction of photovoltaic systems, but the cost of cables has not been reduced. In large-scale projects, cables account for 10% of the system, which is even higher than that of inverters. In fact, as long as the design and installation are proper, under the premise of ensuring the normal operation and safety of the system, some AC cables are made of aluminum alloy cables, which can reduce part of the cost.
Rare earth aluminum alloy cable uses high elongation aluminum alloy material. By adding boron and other rare earth trace element materials to pure aluminum, and processed by rolling technology and special annealing process, the cable has good flexibility. When the surface is in contact with air, a thin and strong oxide layer can be formed, which can withstand various corrosions. Even when overloaded or overheated for a long time, the stability of the connection can be guaranteed, and the cost is slightly higher than that of ordinary aluminum alloy cables by about 10%.
The application range of aluminum cables: long-distance overhead lines, underground cable trenches with a relatively large space, and places with reliable fixed bridges, aluminum cables may be considered.


Precautions for the use of aluminum cables:
The melting point of copper is 1080°C, while the melting point of aluminum and aluminum alloy is 660°C, so copper conductors are a better choice for fire-resistant cables. Now some aluminum alloy cable manufacturers claim that they can produce fire-resistant aluminum alloy cables and have passed the relevant national standard tests, but there is no difference between aluminum alloy cables and aluminum cables in this respect. No matter what kind of heat insulation measures the cable adopts, the cable will melt in a short time and lose its conductive function. Therefore, aluminum alloy is not suitable for fire-resistant cable conductors, nor is it suitable for use in densely populated urban distribution networks, buildings, factories and mines.


Compared with the aluminum core cable, the copper core is flexible, the allowable bend radius is small, and it is not easy to break after repeated bending. Therefore, the aluminum cable is not suitable for the occasions with many turns, more pipes, or complicated lines.
Since the terminals of the electrical switch equipment are all made of copper, the copper and aluminum are directly connected, and the chemical reaction of the galvanic battery will occur after power on: the more active aluminum will accelerate the oxidation, resulting in higher resistance at the joints and current carrying capacity. Therefore, some measures need to be taken when the copper and aluminum are connected, such as the use of copper-aluminum transition terminals or copper-aluminum transition terminals to eliminate electrochemical reactions.

Ingenious use of AAAC Conductors for photovoltaic systems(1)

In the era of low-cost Internet access, the cost of the control system is critical. In the past ten years, the prices of modules and inverters have fallen by 90%, which has contributed greatly to the overall cost reduction of photovoltaic systems, but the cost of cables has not been reduced. In large-scale projects, cables account for 10% of the system, which is even higher than that of inverters. In fact, as long as the design and installation are proper, under the premise of ensuring the normal operation and safety of the system, some AC cables are made of aluminum alloy cables, which can reduce part of the cost.


The cables of the power station are divided into DC cables and AC cables. Among them, the DC cables between the components and the DC cables between the components and the inverter are generally required to use photovoltaic special DC cables, and from the inverter to the AC distribution There is no requirement for cables between electric cabinets and cables between distribution cabinets and transformers.
What is aluminum alloy cable: Aluminum alloy cconductor is a new material power cable with AA8030 series aluminum alloy material as the conductor. The resistivity of aluminum alloy is between aluminum and copper, higher than copper, and slightly lower than aluminum. Under the premise of the same current carrying capacity, the weight of the aluminum alloy conductor of the same length is only half of that of copper.
In terms of service life: after the metal surface reacts with oxygen, different metal oxides are formed. Aluminum oxide can form a dense surface protective film with a certain hardness. Copper oxide, commonly known as patina, is between the above two and is a toxic substance.


The cost of aluminum alloy cable is about 25% to 50% of that of copper core cable, and the cost advantage of using aaac cable is relatively large. We can make a comparison. In a 400kW village-level poverty alleviation power station, the distance from the AC distribution cabinet to the step-up transformer is 1500 meters, and the maximum output current of the 400kW power station is 580A. If copper cables are used, two cables are required for each phase. 150 square meters, 3 phases need 6 pieces, the total length is 9000 meters, the price is 864,000; if you use aluminum alloy with two 240 square meters, the total length is also 9,000 meters, the price is 450,000, you can save 414,000 yuan, and 240 A square aluminum wire has lower loss than a 150 square copper wire.

Industry Standard for high-strength aluminum alloy conductor overhead insulated cables

Aluminum power cable is a new type of power cable, which is made of AA8030 series aluminum alloy material and adopts the advanced technology such as special roll-forming wire stranding and annealing treatment. The alloy power cable makes up the deficiency of the traditional pure aluminum cable. Although the electric conductivity of the cable has not been improved, the bending, creep and corrosion resistance of the cable have been greatly improved, the AA-8030 series aluminum alloy conductor can improve the electric conductivity and high temperature resistance of the aluminum alloy cable, at the same time, the problems of pure aluminum conductor and creep are solved.

The electrical conductivity of aluminum alloy is 61.8% of copper IACS, and the current carrying capacity is 79% of copper, which is superior to pure aluminum standard. But at the same volume, aluminum alloys actually weigh about a third as much as copper. Therefore, at the same ampacity, the weight of the aluminum alloy cable is about half that of the copper cable. Using aluminum alloy cable instead of copper cable can reduce cable weight, reduce installation cost, reduce equipment and cable wear, make installation work easier. The new standard specifies the terms and definitions, specifications, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of medium strength aluminum alloy core insulated overhead cables. The Standard Product is suitable for the aluminum alloy conductor overhead insulated cables with rated AC voltage of 20kV or less for fixed overhead laying in cities, forests, scenic spots and other power distribution fields. The main technical contents include medium strength aluminum alloy conductor structure, conductor DC resistance, insulation thickness, AC voltage level and test items and methods. The medium strength aluminum alloy conductor overhead insulated cable has the characteristics of light weight, large breaking force and low resistance. It is a kind of overhead insulated cable with excellent comprehensive performance and better economical operation in the whole life cycle. The establishment of the industry standard further promotes the progress of this technology, and unifies the structural design and manufacturing process of Medium Strength Aluminum Alloy conductors, which is of great significance to the development and application of medium strength aluminum alloy core overhead insulated cables, on the basis of this, international standards can be formed to promote China technological progress, promote industrial transformation, and substantially participate in international standard activities.

Do you know what are the advantages of superconducting cables

At present, the long-distance large-capacity power transmission generally uses overhead bare aluminum cable and wires, and the power transmission in large cities generally uses underground cables, and the conductors are copper wires or aluminum wires. Using these traditional wires or cables, electrical energy will lose 5% to 10% during the transmission process. In order to reduce the loss of electric energy during the transmission process, the voltage should be increased as much as possible during long-distance transmission, such as using 500kV or 750kV and above ultra-high voltage lines. UHV lines have very high requirements on the insulating porcelain bottles of transmission towers and the use of space, especially the materials and production technology requirements of line terminal accessories, which greatly increase the construction cost of UHV lines. At present, my country cannot produce terminal accessories for ultra-high voltage lines, and imported ultra-high voltage line terminal accessories are very expensive.

If a superconducting cable is used, its AC impedance is only 1/10 of that of a conventional aerial bundled cable ASTM B231 standard, which can reduce the line loss of the power grid by about 50%; the application of superconducting cable will also reduce the system voltage for long-distance transmission, and the overall cost of other equipment in the system will follow It is reduced.In the long run, the application of superconducting cables also makes long-distance DC transmission technology easy and economical. For direct current transmission, superconducting cables will reduce the power grid line loss by more than 70%, showing better economic benefits. Since the power transmission capacity of superconducting cables is 3 to 5 times that of traditional conventional cables, the use of superconducting cables can also save the area and space of the power transmission system, save a lot of valuable land resources, and protect the ecological environment accordingly.

The smooth grid-connected operation of China’s first group of practical superconducting cables indicates that the technology of my country’s superconducting cables has become mature and has a profound impact on the development of my country’s power system. The application of superconducting cables in the main lines of my country’s power grids and transmission bottlenecks will help improve the safety and reliability of the power grid. In the long-distance and large-capacity transmission, superconducting cables have incomparable advantages in the overall performance of the system, and will fundamentally solve the problem of long-distance and large-capacity transmission such as my country’s “West-to-East Power Transmission” in the long run. In the near future, high-temperature superconducting cables may soon show advantages in the following aspects:

(1) In dense urban residential areas, skyscrapers, conventional cable capacity is insufficient, and there is no room for aerial bundled cables BS 7870;

(2) High current, short distance, and small space applications such as metal smelting equipment;

(3) High-current transmission bus in power stations and substations;

(4) In large cities with rapidly developing power demand, the required power supply capacity is constantly expanding. Due to the congestion of the city and the high cost of excavation, it is impossible to expand the scope of cable laying. With the help of superconducting cables, it can be replaced in the original pipeline to increase the power supply capacity. Increase 3-5 times.

Selection of power cables for home use

The decoration of the new house has many small and large details, and every detail needs to be taken seriously. This is because many decorative details are related to the comfort and safety of the house. However, there are many decorative materials on the market. Therefore, many friends do not know how to choose when choosing materials. Among them, everyone is more entangled. The question of material selection is: Should power cables be flexible wire? Or should I choose a hard line! What is the difference between hard wire and soft wire? Below, I will give you a brief explanation.
Before choosing hard wire or soft wire, we must first know what is hard wire? What kind of wire is a flexible wire?
The so-called flexible wire refers to strands of conductive solid wires with a diameter less than 1mm twisted together, that is, multiple strands of copper wires are twisted together. Therefore, the flexible cord is also called “sheathed cord”. Hard wire refers to a hard wire composed of several thick copper cores. Generally, hard wires of less than 10 square meters are single stranded.


So, what are the advantages and disadvantages of soft and hard wires? The details are as follows.
From the point of view of the service life of the wire, because the hard wire is thicker, it is not easy to oxidize; the flexible wire is composed of multiple thin copper wires, which are easily oxidized by the air, so the service life of the hard wire is much longer than that of the flexible wire From the perspective of the cost of the wire, since the flexible wire is relatively soft, it must be wound many times before use; the hard wire has only one copper wire, which can be passed directly. Therefore, compared with flexible wires, hard aaac conducors have less processing and are much cheaper; from the perspective of current-carrying capacity, flexible wires are composed of multiple strands of copper wire, and their current-carrying capacity is greater than that of a single copper wire. , But when it is suddenly loaded, the capacity of the current-carrying hard wire is greater than the capacity of the flexible wire; therefore, if it is used in general household appliances and the current does not exceed 100 A, single-stranded wire can be used.


2. From the perspective of the working process of the wire, use a soft wire at the connection of the hot tin or iron wire end, otherwise the multi-stranded wire may rise and connect with the next wire, which is very dangerous; and the hardness of the hard wire Very strong, its safety performance is relatively strong, from the perspective of whether it is convenient to repair the wire; although the hard wire is more difficult to replace, it can be completely pulled out of the threaded tube; if necessary, you can also replace the threading; but The cord is different, because the cord is prone to aging and breaks easily, so when the cord is replaced, the wire is likely to be damaged.
Generally, hard wires are more suitable for household use. However, it is worth noting that not all household wires need to use hard wires, and some places are more suitable for flexible wires. Therefore, when choosing wires, you should choose according to the location of the wires and the needs of your own home.

Model of mobile rubber sheathed flexible cable

Mine cable is a general term for flame retardant cables for coal mines

Working voltage of mobile flexible cables for coal mines:

The rated current is indicated by U0/U, and the enterprise is kV. U0 indicates the effective value of the voltage between any main insulated conductor and the “ground” (metal material shielded, metal material sheath or surrounding material); U is the middle of a multi-core cable or a single-core cable system software. The effective value of the voltage.

In an AC system, the rated voltage of the cable should be at least equal to the nominal voltage of the system to which the cable is applied. This standard is applicable to both U0 and U values.

Shenyang coal mine mobile rubber sheathed flexible cable

Naming standards for mobile flexible cables:

The name of the mobile flexible cable is composed of seven parts: among them: the first, second, third, fourth, and fifth parts constitute the model specifications of the cable; the sixth, seventh, and eighth parts The specifications and models that make up the cable.

The first part: use English capital letter M to indicate the serial product number of cables for coal mines.

The second part: application application feature number, reflecting the place where the cable is applied,

C: For coal mining machine, D, for ultra-low temperature natural environment, M: for cap lamp, Y: for coal mining machinery and equipment (mobile), Z: for electric drill.

The third part: the characteristic number of the cable, B: manual braided lifting; J monitoring or auxiliary copper core cable; P: non-metallic material shielded; PT: metal material shielded; Q: light-shaped; R: wrapping and lifting.

The fourth part is the characteristic number of the raw material. Use E to indicate that the insulation layer or the sheath is made of polyurethane elastomer. This part is omitted when vulcanized rubber is used for both the insulating layer and the wire sheath. E, polyurethane elastomer raw materials

The fifth part: Indicate the rated current U0/U, the enterprise is KV (kV).

Part 6: Indicate the number of cores of the driving force * tolerance cross section, and the two are connected by “×”. Tolerance cross-section enterprise is square millimeter (mm2)

Part 7: Indicate the number of grounding wire cores*tolerable cross-section, and the two are connected by “×”. The tolerance cross-section enterprise is square millimeter (mm2).

The eighth part: Indicate the number of bisector cores*tolerable cross section, with “×” between them

Join. The tolerance cross-section enterprise is cubic millimeter (mm2).

The fourth part and the fifth part are connected by “-”; the sixth part, the seventh part, and the eighth part are connected by a “+”.

Mobile flexible cable core specifications: 1, 1.5, 2.5, 4, 6, 10, 16, 25, 35, 50, 70, 95, 120, 150, 185, 240, 300, 400,

MYPTJ — — -Mining mobile shielded metal material monitoring rubber sheathed flexible cable

MYP — — — -Mining mobile shielded rubber sheathed cable (0.66/1.14)

MCP — — — — Special cable for mining shearer (shearer shielded rubber sheathed flexible cable)

MYJV22 — — — -Mining polyethylene insulation layer HDPE sheathed double steel chain armored cable

Shenyang coal mine mobile rubber sheathed flexible cable

The use of ACSR conductor 

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Rubber sheathed cables are widely used in various electrical equipment, such as portable power cords for household appliances, electrical machinery, electrical equipment and appliances, and can be used in indoor or outdoor environmental conditions. According to the mechanical external force of the cable, the product structure is divided into three types: light, medium and heavy, and there is also an appropriate connection in the section. Generally, light-duty rubber-sheathed cables are used in household electrical appliances and small electric equipment, requiring softness, lightness, and good bending performance. In addition to industrial use, medium-duty rubber-sheathed cables are widely used in agricultural electrification, and heavy-duty cables are used in port machinery, searchlights, Large-scale hydraulic irrigation and drainage stations in the family business. This type of product has good versatility, complete series specifications, good performance and stability.

Waterproof rubber sheathed cables and AAC conductor for submersible pumps are mainly used for submersible motors. The model is JHS, JHSB.

For cables for radio devices, currently two types of acsr conductor (one shielded and one unshielded) are mainly produced, which can basically meet the requirements. The model is WYHD, WYHDP.

Photographic cable products, in line with the development of new light sources, have a small structure and good performance, while meeting the needs of indoor and outdoor work, and gradually replace some old products with heavy weight and poor heat resistance.

Rubber cable model

Rubber sheathed cables are divided into heavy rubber sheathed flexible cables (YC cables, YCW cables), medium-sized rubber sheathed flexible cables (YZ cables, YZW cables), light rubber sheathed flexible cables (YQ cables, YQW cables), and waterproof rubber sheathed flexible cables ( JHS cable, JHSB cable), welding machine cable (YH cable, YHF cable) and YHD cable are tin-plated power cables for field use.