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Analysis of the construction of photovoltaic cables need to pay attention to three issues

Photovoltaic cable laying construction is an extremely important project, in order to ensure its normal operation, from time to time, if there is a failure, it must be laid to exclude the possibility of problems, and the premise of excluding the problem lies in the construction of the cable, the next, XSD cable will help you solve the problem, and for you to solve the problems encountered when laying the cable, take a look. 1, The current caused by eddy current problems Photovoltaic cable in the construction process, some use steel bracket, some use steel sheath, some use cable clamps and overhead laying. Can form any steel (iron) closed loop around the photovoltaic cable, the above phenomena are likely to produce eddy currents, especially worth mentioning is that in the high current photovoltaic cable system, eddy currents are greater, in the construction process, measures must be taken to prevent the formation of steel (iron) closed loop around the cable and thus prevent the cable from eddy current phenomenon. 2, The cable rotation caused by mechanical damage Individual type specifications too large photovoltaic cable because of the larger outside diameter and thus lead to transport and laying difficulties, at the same time, the requirements of the turning radius is also very strict, if the corner amplitude is too large, it is very likely to make the conductor internal mechanical damage, and mechanical damage is caused by the insulation strength of the cable until the failure, in the equipment connection, the appropriate shortening of the connection length of the middle phase cable head, so that the three-phase cable head is not subject to external force. Practice has proved that the operation of good results. 3, The low-voltage photovoltaic cable grounding problems In the public low-voltage photovoltaic cable, due to the three-phase load is not equal, if the use of metal-sheathed cable, must consider the grounding of the metal sheath, at the same time, and should ensure that the metal sheath at any point is not grounded, the normal induction voltage should not be greater than 100V, I think, in the low-voltage cable network, all cable joints should be set up grounding pole (network), the metal sheath should be reliably grounded. Well, said three points about the construction of photovoltaic cables worth noting the three issues, you get it, at the same time, you also want to know more related news and information, we recommend to continue to pay attention to our company XSD Cable official website, the follow-up will also push you more related information, please look forward to.

2023

08/15

Among the materials with strong conductivity, which one is the best choice for wire conductors

If you're working on a home improvement project or large construction job, one of the most important materials you'll need to find is electrical wire. A great deal of modern life depends on electricity and the devices, appliances, appliances and machines that use it. While few people can go a full day without encountering or needing electricity, most people around the world use it hundreds of times in a day. Just think about everything in your home. Your TV, refrigerator, microwave, and dishwasher all need electricity and wires to run. Chances are, you have a washer, dryer, and automatic garage door. Along with all these bigger appliances and devices, our lives are filled with electronics. Americans rely on laptops, cell phones, tablets and other portable devices. Modems, servers and hard drives power our business. There is no denying the importance of wires to our lives. What is a good conductor of electricity? As we know, there are so many items that are essential to sustain life, moving forward, wire manufacturers must use better materials; usually, good copper materials can be used as wires with better electrical conductivity, and electrical conductors are defined For materials with mobile charged particles, we call these electrons. When electricity hits a metal, those electrons start moving very fast. Electricity will flow through the wire conductor, thus conducting electricity. Therefore, the best metallic conductors are those with good electron mobility. Conversely, metals that make poor conductors will have low electron mobility. The two best conductors are silver and copper. For this reason, electricians, construction workers, developers and those in the telecommunications industry prefer to use both materials in their wires. Can silver be used in wires today? Silver is the best conductor of electricity. Despite silver's tremendous ability to conduct electricity, it's not typically used in wires. The reason is that silver is much more expensive than the other option, copper. Instead, silver is used in high-end specialized devices where impressive electrical conductivity is required and price is not a concern. For example, silver is used in satellites and circuit boards. Silver is also used in small amounts in some of our common devices. Instead of forming the entire cable or wire, silver is used in electrical switches to connect the contacts of the switch, it is one, and separates the contacts when it is closed. When used in such small amounts, it is still an economical choice. Silver contacts can be found in the wires of cars, trucks, SUVs, and other vehicles. The same style of contacts is also popular in industrial machines. What are the uses of aluminum? While copper and silver are considered the two main conductive materials, aluminum is not far behind. Also, this metal has properties that set it apart from copper when it comes to everyday wires. This characteristic is weight. While copper can be heavy, despite its malleable properties, aluminum is very light. This makes it an ideal material for overhead telephone lines and similar projects. In fact, when comparing wire conductor materials per unit weight, aluminum is less expensive than copper and conducts electricity quite well. However, aluminum has certain properties that make it unusable in many situations. Aluminum forms an anti-electron oxide on its surface. At first, this will just cause the device to overheat, but if the aluminum is exposed to the elements for an extended period of time, it will stop conducting electricity completely. This would be a nightmare for portables, modems and similar. Additionally, it protects the aluminum from use in any environment exposed to salt or heat. Instead, the better wires are usually copper, because not only can it be easily coiled into electrical coils, but it is also resistant to corrosion from salt, heat, and other harsh environments. What about steel as a conductor? Steel is generally considered a construction material. It is heavy, durable and inflexible. These qualities make it the most common choice for building skyscrapers and warehouses. Any structure that needs to be large, immovable and strong will likely contain some steel beams. However, steel is an alloy of iron that conducts electricity. The problem is that it's nearly impossible to get steel into the shape and size needed to make wire. Steel is often used to wrap wire or other conductors, which is a much better use of a durable material. How to find the suitable wire? At XSD Wire and Cable, we offer wire in a variety of lengths, diameters and sizes. Our goal is to provide any builder, renovator or electrician with the exact wiring they need to complete their project. Regardless of size or experience, we are happy to discuss wiring sold through XSD Wire and Cable and a more suitable option for your project.

2023

08/15

After getting the lowest ex-factory price when purchasing wires and cables, how to ensure the value for money?

When you are looking for photovoltaic cables for your project, whether it is an industrial, commercial or residential project, don't just look for the price list, but choose the photovoltaic cable manufacturer that offers the lowest price. We'll tell you why you need to move beyond the "lowest cost is always best" mentality. Sometimes, you can get the lowest prices for PV cables from high-quality manufacturers. It's just a matter of knowing what to look for. Read on as we tell you how to kill two birds with one stone! Finding low-price suppliers can be a trap Most electrical engineering or mechanical projects require some form of wiring or wiring. Typically, sponsors of these projects start by sourcing low-cost components and supplies to figure out the cost of their programs. While this can be a good strategy for managing your budget, it can also end up costing you more than you thought possible. The reasons are as follows: 1. You will not manufacture PV cables by yourself, usually you will only get the lowest price from PV cable suppliers 2. Sometimes, if you are lucky enough to find cheap OEM photovoltaic cable manufacturers, they are likely to be start-up companies or fledgling companies 3. And, in rare cases, you will contact a low-cost photovoltaic cable manufacturer that has been in business for five years or more, and they are generally a single-product manufacturer. So, when you put all three of these traits together and suddenly none of them are what you want, sucks? Here's why. Dealing with non-manufacturers When you look at a non-manufacturer as your sole source for PV cables and nylon wires, they are likely to be sourcing stock from multiple PV cable manufacturers. Why is this a bad thing? If your project relies on a large or long-term supply of PV cables of a specific quality standard, you are out of luck! To reduce risk in their own supply chain, 3rd party suppliers usually only source limited inventory (quantity) of products from multiple manufacturers. That way, if one partner is unable to supply them with PV cables, they can rely on others to do so. The problem is that even if the PV cables offered are the same price, a project or product that used manufacturer A PV cables in the last month may end up using PV cables of slightly different quality and standard (lower or higher!) from manufacturer B -this month. The result: lack of consistency in product quality from batch to batch. Worse, it can even lead to inconsistencies between PV cables used in the same product or project! You have even bigger problems when dealing with companies that are not producers or manufacturers. They do not speak or understand the language of the PV cable manufacturer. So if there is a problem with the PV cables or nylon wires they provide you, you most likely won't be able to fix the problem quickly. Your retail supplier will escalate the problem to a 3rd party wholesaler who will raise the issue with the manufacturer... who would raise such a problem in their manufacturing department... blah blah blah! If you want to solve PV cable quality problems quickly - it is better not to buy PV cables from non-manufacturer partners! Trust Your Fate to Startups and Newbies As a respected manufacturer of products, be it washing machines, toasters, electric heaters or vacuum cleaners, you can rely on a partner who can guarantee the quality of the raw materials you buy from them. However, when you deal with newbies or start-up companies to provide you with these components, such as photovoltaic cables, you put your own reputation at risk. First, unlike photovoltaic cable manufacturers with a proven track record, novices have no experience or expertise in producing high-quality nylon wires and photovoltaic cables. While they may compete with lower prices, they don't really live up to the high standards your customers expect from you. Is it worth risking your reputation dealing with these PV cable manufacturers? The greater risk is that a relatively new player in the PV cable manufacturing business could close down, fold or declare bankruptcy at any time. They often can't compete with established companies on quality, so they continue to beat down on pricing. At some point, when they can't break even -- because of price wars -- they go bankrupt. When this happens, your company desperately tries to arrange an alternative supplier. In this case, your bankrupt PV cable manufacturer's established competitors will resort to price gouging because they sense your desperation. Therefore, the price they charge you for PV cables may be much higher than what they charge your competitors! Another challenge for small PV cable producers is the staff. Because they can't pay much (in terms of salary and benefits), they can't attract the best and brightest. As a result, employees -- even their best -- keep leaving to join bigger (and better paid!) competitors. This ongoing staffing upheaval has resulted in a reduction in the number of trained and inexperienced technicians working on the production line, ultimately affecting quality. Work with a single product manufacturer The biggest mistake an established engineering or electrical project company, or product manufacturer like yours can make, is tying your company's fate to a single product manufacturer. The diversity of today's manufacturing environments requires that you use an equally diverse range of photovoltaic cables and nylon wires in your projects or products. Unfortunately, a single photovoltaic cable and nylon wire manufacturer cannot meet this demand. Why is this a bad thing? Well, when you enter into a supplier relationship with one supplier, your company spends a lot of time and effort maintaining that relationship. So instead of having multiple single relationships that will cover all your PV cable needs, you now have to create multiple partnerships, all of which take time, effort and money to maintain! Dealing with single window PV cable manufacturers is the best supply chain management strategy in the long run. Not only does it guarantee the variety of materials and supplies you need; it also reduces supplier management costs. High quality and low price can coexist From everything you've probably read so far, it sounds like the only solution is to work with a PV cable producer who sells their product at a premium. Not true at all! In fact, if you know to look for better quality photovoltaic cables, you can find high quality, stable supply and low prices in one photovoltaic cable manufacturer! 1. Track record: A company like XSD Cable, which has been around for over 10 years, is a better partner than those that have been in business for 5 years or less. 2. Various types of products: the company provides a variety of photovoltaic cables, including single-core photovoltaic cables, medium-voltage power photovoltaic cables, low-voltage power photovoltaic cables, armored photovoltaic cables and nylon photovoltaic cables. The company is in a better position to meet terminal needs . Customer's terminal needs. 3.OEM: As an original photovoltaic cable manufacturer, not a distributor or reseller, the company has greater flexibility as a photovoltaic cable wire expert and invents newer nylon wires and photovoltaic cables to meet customers' changing needs. Most importantly, these three characteristics of a good PV cable manufacturer allow flexibility in pricing. With a factory capacity of more than 6000 square meters, and more than 60 sets of photovoltaic cable and nylon wire manufacturing and production equipment, they can bring economies of scale when pricing photovoltaic cables. That's because they already have a large number of international customers using their products. Therefore, when market conditions dictate, their PV cable prices can easily match market demand without compromising the viability of the company. Standardization is another cost determinant. High-quality manufacturing stems from the adoption of international standards. Most new manufacturing facilities are not certified to global standards. That's because the cost of certification is very high. And, if a start-up invests in global certification now, they pass the cost of standardization on to customers, which translates into a per-product cost and beyond. As an ISO, USL and CCC approved manufacturer, XSD Cable has invested in certification. And because they spread the cost over more customers, they can offer a lower cost product to all customers. With a strong workbench of more than 100 experienced technicians, XSD Cable invests in continuous training and development of its workforce. Since the staff is well taken care of, he can serve as motivation to provide the best service. A motivated workforce also breeds innovation, which is not only good for the company, but also for customers. When you add these three elements together: a history of delivering high quality, a large manufacturing facility, and an experienced, dedicated and loyal workforce, it translates into one thing: lower PV cable prices for customers. But that's not all. Lower prices usually come with lower quality. However, when you cooperate with a well-known PV cable producer who has a wide customer base; owns its own production facilities; invests in research and development; and produces to high international standards, the unit price drops. This is how productivity economics works. Therefore, if you need various special photovoltaic cables and nylon wires, why not contact Dongguan XSD Cable Technology Co., Ltd. to understand your requirements. A photovoltaic cable manufacturing specialist will be happy to answer your questions or put you in touch with someone who can advise you better.

2023

08/15

A minute to take you to understand the difference between VV22 and YJV22

Difference one: the power cable outer skin packaging is different W: is polyvinyl chloride insulated PVC sheathed power cable; W22: is polyvinyl chloride insulated PVC sheathed steel belt armored power cable; YJV: is cross-linked polyethylene insulated PVC sheathed power cable; YJV22: is cross-linked polyethylene insulation polyvinyl chloride sheathed steel belt armored power cable. Difference two: the power cable application range is different VV22: laid indoors, tunnels and directly buried in the soil, the cable can withstand pressure and other external forces. YJV22: suitable for fire resistance requirements when buried, not suitable for laying in the pipeline. Insulation type: V-PVC; X-rubber; Y-Polyethylene. YJ-cross-linked polyethylene. Z-Oil-impregnated paper. Category, application code: A-Installation line; B-Insulated wire; C-Marine cables; K-Control cables; N-Agricultural cables; R-Flexible wire; U-Mining cables; Y-Mobile cables; JK-Insulated overhead cables. L-Coal mine; ZR-Fire-retardant type; NH-Refractory type. ZA-A-grade flame-retardant; ZB-Fire-retardant class B; ZC-C grade flame retardant; WD-Low smoke halogen-free type. Extended information: The model number of wire and cable for electrical equipment and power cable consists of the following seven parts: 1. category 2. Use code. 3. Conductor code. 4. Insulation layer code. 5. Sheath code. 6. Feature code. 7. Armor layer code. 8. Outer sheath code. Oil-filled power cable model consists of product series code and cable structure parts code; self-capacitating oil-filled cable product series code CY; outer sheath structure from inside to outside with the strengthening layer; armored layer; outer layer code combination; insulation type; conductor material; inner sheath code and the order of arrangement of the code and the product expression method is the same as 35kV and below power cable. Well, the above is the introduction of "a minute to take you to understand the difference between VV22 and YJV22", hope it can help you! We suggest to continue to pay attention to XSD Cable, to learn more information.

2023

08/15

6 Ways of Laying Power Cables

Power cable insulation in how thick also need to be laid intact, in the road, engineering construction, power cable buried about 0.7 meters deep, generally common in the use of cement cover to protect the power cable, after laying but also to repair the road, this method is less costly. Poor quality, if you want to lay the power cable more perfect, its method has 6.   1、Cable trench way The cable trench dug out under the pavement, put the cover, excavation construction, after the line only need to open the cover, more convenient, cable trench is also divided into two sides of the bracket cable trench and single-sided bracket cable trench; 1m deep, 2m wide, single-sided bracket cable trench 1.65m deep, 1.5m wide, generally including 12 cables. This can of course be increased or decreased depending on the specific situation. The advantage of this approach is that the cables are easier to release and easier to maintain. After one excavation, the cables can be laid one after the other, which is more effective, but slightly more expensive. 2、Cable tunnel method In many cables, cable tunnels should be constructed, the size of which can be arranged according to the construction conditions and needs. The tunnels are divided into round top tube type (general inner diameter 2-6cm), cast-in-place method (general internal size: 2m wide, 2.88m deep); about 36 cables can be placed. The pipe jacking method does not require excavation of the road, the cast-in-place method requires excavation of the road and the top of the tunnel is up to 2 metres deep. This way is the most expensive, the advantage is that the construction of the cable is convenient, the number of roots. 3、Hanging cable way Set up the laying method power cable rack generally using galvanized steel strand suspension. When the weight of the power cable is less than 2 tons per kilometre, the use of 35 square millimetres of steel wire, stranded 50 square millimetres of steel wire less than 3.99 tons per kilometre. The installation of fixed cables should take into account the following points: 1. On roads, power cables shall be suspended at a height of not less than 5.5m, and at a height of not less than 7.5m when suspended on railways. 2. Suspended cables are often used in buildings or related more places, should prevent direct contact with buildings or contact with trees. 3.3KV above the cable sheath should be reliably grounded, otherwise it can be regarded as an insulated line; can not be installed by means of hanging wire 4. The cable is usually hung on a sling, or can be tied to a pole. Armored cables are fixed every one metre. If it is unarmored armored cable, the hook distance will be shortened, generally hanging at 0.6m. A well laid power cable is safer for future use, not only to prevent gnawing by wild animals, but also to avoid damage by unknowing farmers' tools in their daily work, and to prevent oxidation and bad air attacks. Well, the above is the introduction of the "6 ways of laying electric power", I hope it can help you! Please continue to pay attention to XSD Cable, to learn more information.

2023

08/15

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