Lighten your Christmas with solar powered Christmas lights!

Christmas time is just around the corner and every street and Solar powered Christmas lights have been bursting onto the scene for Christmas displays worldwide. Now it is also the time to think of the Renewable Green Energy and combine the Christmas spirit with the environmental spirit and use Solar LED Christmas lights. Every conscientious citizen of the world would like make their efforts to save energy and certainly reduce their electrical bills. For better understanding and capturing the whole picture of solar powered Christmas lights, we would like to share some basic knowledge here.

How Christmas Solar Lights Work

Christmas solar lights have several components that enable them to antomaticlly operate during the night. A solar panel, containing a photovoltaic cell converts sunlight into an electrical current. This current is then transferred to a battery, ensuring the Christmas lights can run all night long. The battery then transfers current and lights the LED bulbs, with a burn life fall longer than traditional incandescent bulbs.

Advantages of Solar Powered Christmas Lights

Solar Christmas lights are convenient for a number of reasons. Their batteries automatically recharge during the day, and the turn on and off at the onset of dusk and dawn, respectively. Also, you never have to worry about the lights going out. A bulb burns out? The rest keep shining.  Power outage? You’ll have the only lit house in the neighborhood!

A fully charged string of solar Christmas lights will run from six to eight hours, plenty of time to give people out viewing lights a good showing. Because the LED lights used in solar strings generate little or no heat, they are safer as decorations since there is practically no risk of fire, electrical shorts or overheating.

Solar Christmas lights offer almost every conceivable advantage over traditional Christmas lights. In addition to being more eco-friendly, solar Christmas lights have a longer bulb life, do not need extension cords, can be place where running electricity from an outlet is inconvenient or impossible, and significantly lower electricity bills during holiday months.

Are they perfect choice over traditional Christmas lights?

Relying on the sun’s rays for energy, solar powered Christmas lights must be placed where they will receive enough sunlight. Without enough sunlight, the batteries will not fully charge, causing the lights to shine dimly and for only a few hours. How to solve this problem? Yes, we could enlarge the solar panel to get a higher voltage to charge the battery even in the cloudy day, but there are still some area in which the heaven is not bright enough for charging, that is why solar Christmas lights are not perfect choice all over the world.

Tips of buying Solar Christmas Lights

Before buying solar powered lights, make sure the area in which you plan to place them has a direct view of sunlight for at least 4 to 5 hours a day or you need to clarify this to the supplier so that they could custmize the solar panel for the typical weather. Even though you can place the lights anywhere, the solar panels must have access to direct sunlight. Partial shade will influence the charging efficiency.

No matter where you live in, moisture can be a major issue with outdoor holiday light displays. Whether it’s raining or snowing, moisture will take a major toll on solar Christmas lights that aren’t waterproof or highly water resistant. Look for lights that are fully gasketed and have tightly sealed components (the switches, the connections, the LED bulbs themselves). Lower quality solar Christmas lights tend to chintz in these areas and after heavy rains, the products are damaged or destroyed.

In conclusion, if we really want to save money and contribute to the saving of the environment, it is our duty to get rid of old type Xmas lights and get the new and environmentally friendly Solar LED Xmas lights powered by one of the many types of renewable green energy.

Information source from https://electricalknowledge1.wordpress.com/2014/12/05/lighten-your-christmas-with-solar-powered-christmas-lights/.

What Are The Insulation Type for Power Cables And Wire?

The centre of a conductor has low-frequency signals, while the conductor’s surface has high frequency signals. As a result, high frequency signals are constrained to flow in a smaller area of conductors than low-frequency conductors. For this reason, effective cable resistance is important in high frequency signals compared to low-frequency signals. Furthermore, cable losses are frequency dependent, with high frequencies experiencing the most loss. Nevertheless, the conductor resistance increases because of the ‘skin effect’ happening at around 20 kHz.

Types of insulation

An insulator is a material that is resistant to the flow of electric current (a non-conductive material). It helps to resist the leakage of the electric current, preventing it from contacting other conductors. This helps to preserve the integrity of the wires against environmental threats like heat and water. Therefore, the effectiveness and safety of wires and power cables depend on their insulation. The common types of cable insulators include:

Plastics

The plastic insulators include PVC (Polyvinyl Chloride), SR-PVC (Semi-Rigid PVC), Plenum PVC (Plenum Polyvinyl Chloride), PE (Polyethylene), PP (Polypropylene), PUR (Polyurethane), CPE (Chlorinated Polyethylene) and Nylon.

Rubber

The rubber insulators include TPR (Thermoplastic Rubber), Polychloroprene (Neoprene), SBR (Styrene Butadiene Rubber), Silicone, Fiberglass, EPR (Ethylene Propylene Rubber), Rubber, CSPE (Chlorosulfonated Polyethylene) and EPDM (Ethylene Propylene Diene Monomer).

Fluoropolymers

The Fluoropolymer insulators include PFA, PTFE (Polytetrafluoroethylene), FEP (Fluorinated Ethylene Propylene), ECTFE Halar, ETFE Tefzel, PVDF (Polyvinylidene Fluoride), TPE (Thermoplastic Elastomers).

Each of these types of insulators has typical uses, pros and cons. Furthermore, the degree of insulation is influenced by several factors such as the maximum voltage of the wire/cable and the temperatures the wire/cable has to withstand. Typically, this affects the type and quality of insulation, sheathings, coverings and insulating sleeves.

Importance of wire & cable insulation

The electrical properties in wires and cables are influenced significantly by the insulation. As a result, high-frequency communication cables would require Polyethylene (PE) insulation because the attenuation and capacitance are minimal when this type of insulation is used. Furthermore, factors such as heat & flame resistance, mechanical toughness, moisture resistance, resistance to ionization, usage life and flexibility determine the insulation.

When you choose the type of cables to use, it is important to bear in mind insulation and shielding factors. Insulation and shielding when combined, can offer effective protection, although they both play an independent role in coaxial cable functioning. While the insulation does not offer protection against electromagnetic interference, it helps the cable to work properly by maintaining the centre conductor and shielding materials from coming into contact with it. On the other hand, cable shielding acts like an electromagnetic energy interceptor that prevents electrical interference from travelling to the centre of the cable and disrupting data signals.

For more insulated cables products  information, Please visit www.qscable.com,www.huadongcable.com and www.hlcables.com.

Application of power cable in Power Engineering

One cable laying
Laying of cables are the following: buried in shallow groove, pipe laying, laying, cable trench laying, cable laying, tunnel overhead cable laying methods have advantages and disadvantages, the general should consider the city development planning, the density of existing buildings laying cable length of the number and the impact of the surrounding environment. More technically, cable tunnel and cable trench laying cable construction, easy maintenance and repair. In some developed countries in the city, city planning and construction, has considered public tunnel. Practice has proved that the running effect of utility tunnel is good, can greatly reduce the duplication of investment and the number of phenomenon repeated excavation of the road, but a huge initial investment, building materials consumption funds, in the domestic, restricted by various factors, the laying method is rare. In contrast, buried and shallow trench laying is laying mode belongs to the economy, the buried cable is the most economical and widely used in electric installation, it is applied to the suburbs and vehicle traffic not too frequent place. But it is not good for the maintenance and repair of the cable, if cable fault, even using the test to measure the point of failure, but also to re dug trenches, very inconvenient. Therefore the cable laying mode selection, combined with the actual situation, according to the engineering conditions, environmental characteristics, cable type and the number of such factors, with the eyes of development, to meet the operational reliability, convenient maintenance requirements and principles of technical and economic reasonable.

Two, the selection of cable
Used in power cables with oil filled cable, PVC insulated cables, XLPE cables, according to the use of different occasions, but also extends to the special different types of cable. At present, with the production technology and production process of continuous improvement, XLPE cable products has become the most widely used, the cable selection, should be based on the use of different environments and conditions, combined with the specific situation of choice, to reduce pass through all kinds of tube side of railway, highway and communication cable; such as the use of buried and shallow trench laying way, should consider the use of cable with steel armor.
Three, the selection of the cable section
The selection of the cable section, related to how much investment, line loss and voltage quality, the service life of the cable. Such as the use of cross-sectional area is too small, will cause the voltage quality, line loss is too large, will make the initial investment is too high. So we should development plan according to the prediction results, select the appropriate load, cross-sectional area, the power cable to meet requirements of cable core temperature maximum working current and voltage drop, thermal stabilization of the maximum short-circuit current. Because the load forecasting work difficulty is high, low accuracy, therefore, selection of cable section, but also meet the requirements of low and medium voltage distribution network in city “transformation” and “technical guidelines for city power network planning guidelines”.
In three-phase four wire power cables of low voltage power network, but also consider the zero line cross sectional area of choice, in public low-voltage network, as affected by the factors of users, the three-phase load balance is difficult to control, to improve the quality of voltage, reduce the loss, the zero line cross section area should be the same with the phase wire cross-sectional area.
Four, a cable network and cable network automation
With the constant promotion and use of electric power cables in the distribution network, the distribution network can be divided into cable network and network (including overhead, overhead cable mixed network). “A city ‘in the low voltage distribution network reconstruction for the implementation of the’ and supplementary comments” for the cable distribution network automation put forward specific requirements. Therefore, the cable network in distribution network of regional network, should be in accordance with the requirements of power distribution automation, adopting new technology, new equipment, has the condition to consider the pilot work automation, the conditions are not ripe also in supporting the selection of equipment, the full room, in order to realize the self foundation dynamic scheme.
FiveShould pay attention to problems in construction, power cable
1, the eddy current problem caused by high current power cable
Power cable in the construction, the steel bracket, a steel protection tube, a cable card and overhead, usually in the form of power cable around the steel (iron) closed loop, are likely to form a vortex, particularly in the large current power cable system, higher eddy current.
In the power cable construction, measures must be taken to make the cable around, cannot form the steel (iron) closed loop, prevent the cable caused by eddy current phenomenon.
2, is the mechanical damage caused by power cable turns
Because the power cable diameter is bigger, transport, installation is difficult, power cable to the requirements of turning radius is strictly. Power cable in the construction, if the turning angle is too large, may make internal conductor by mechanical damage, and mechanical damage because the cable insulation strength decreased, until the emergence of fault, in construction of a cable head fault, in making cable head, three cable head same length, and equipment connected due to topographical constraints in, head of the cable is too long and become the root of arch, cable head damaged discharge. After taking measures, the equipment connection, shorten appropriately in cable connection length of head, make cable head are not affected by external force, the practice proved well. Thus, the cable in the construction process, to minimize the cables are subjected to torsion, in cable turns and Yu left cable, so the cable in the natural bent, put an end to the internal mechanical damage phenomenon.
3, is the electric power cable moistureproof problem
Operating experience shows that, in low voltage power cable fault, most cable middle connector and terminal fault, while the middle connector and terminal fault is mostly due to poor sealing, moisture intrusion caused by insulation strength decreased, while in low voltage power cable network, the dendritic power supply mode, more cable terminal number, so good cable terminals and joints plugging close off is one of the important measures to ensure safe and reliable operation of the cable.
4, is in the low voltage power cables, grounding problem
In the low voltage power cable public, online, because the three-phase load is not equal, therefore, if the metal jacket cables, must consider the grounding metal protecting layer problem, and to ensure that at any point metal protecting layer of non normal induction voltage grounding position shall not be greater than 100V. I think, in the low and medium voltage cable nets, all cable joints shall set grounding (Network), and the metal shield reliably grounded.
For more wire and cable product information, Please visit www.qscable.com andwww.huadongcable.com.

Find the Right Solar Light

Now that you have made a decision to use solar lights for your landscaping beautification and display needs you are already avoiding many other more difficult potential roadblocks and expenses. By installing traditional lighting you need to worry about proper use of electricity and how to arrange your display according to the electrical considerations. Selecting solar adds a lot more flexibility to your display options and without having to hire an electrician for a small ransom to make sure that you meet code and to insure the safety of your home Solar lights are becoming very popular in our eco-conscious society and many solar light fixtures are very reasonably priced, typically paying for themselves with ease when considering there will never be a power bill associated with your solar landscape lights. Solar lights are easily installed and offer plenty of flexibility as they can be relocated with ease. You determine where they are to be set, not your proximity to an outlet.

When solar lights first hit the market many years ago they were generally very dim and frankly, not overly reliable. They have advanced remarkably with the development of ultra-bright LEDs (Light Emitting Diodes) which have replaced the original filaments bulbs that were traditional to solar fixtures. These LEDs are able to generate substantial amounts of light without emitting heat like their original predecessors. This allows for more efficient operation resulting in a reliable and long-lasting light bulb.

Additional advances in solar lighting include the efficient and cost conscious Photo Voltaic cell (PV Cells). This improved solar technology, with more efficient batteries, can generate light on a year-round basis despite colder weather and shorter days, without sacrificing performance. When you are ready to purchase solar lights remember that they have varying functions and intensities to match multiple purposes. There are three primary outside solar lighting categories to consider: accent lights, pathway lights, and spotlights.

Accent Lights

Accent lights are a great landscape accessory as they provide a simple glow to your landscape features. They are designed to provide a low level illumination not as a safety feature. With this lower output, accent lights often last longer than other styles of solar landscape lighting. Also these lights can often operate for multiple nights on a single day’s charge. Another bonus for these accent lights is their ability to charge even on cloudy days or in areas partially covered by shade. Another element to consider is the color or shade of the accent light’s LED.

White LEDs are brighter than amber colored lights which provide even softer lighting. As a result amber uses less electricity resulting in longer illumination times. Accent lights are very useful for many landscape features such as highlighting attractive features around your yard or property or to highlight possible hazards that could be stumbled upon at night. Overall accent lights provide the lowest output of all the solar lights and are the most affordable.

Pathway Lights

It’s obvious that the primary purpose of this solar light category is to illuminate pathways, driveways, sidewalks, and other elongated areas that are part of your landscape. These lights are often displayed in uniformity with multiple fixtures lining the edges of the specific path. Often these lights are installed or mounted on stakes that are inserted directly into the ground. Many will hang off the stakes or have a direct attachment for display.

Often there are multiple display options or positioning options but the purpose most often is to illuminate downwards. Some of the path style lights include on-off switches allowing for the conservation of energy and a lengthy run time. More sophisticated models may include color lenses, timers, or allow for varying levels power use. These lights fall in the medium range among solar lights for both light output and cost.

Spotlights

Spotlights are the brightest category of solar lights and are most often the most expensive. They are made to supply a bright beam of light on your home or landscape features. Although they are brighter and more intense than the other solar lights, they certainly are not as strong as an electric flood light. Top-quality solar lights with strong LEDs can produce a beam comparable to a 40-watt incandescent spotlight.

Not bad for a completely eco-friendly light that is free to operate. Many of these solar spotlights are flexible with multiple display or mounting options and should include the necessary hardware for all available options. Also the solar panel can be adjusted or mounted separately so the light may shine in any direction. With this application the solar panel can be mounted where sunlight is constant while the light fixture can be mounted where the light is needed after the sun sets. The spotlights are usually very durable with the most heavily constructed fixtures.

An added benefit of using solar lights featuring LEDs is their ability to emit brighter light as the temperature drops. This is due to the solid design of the LEDs. In this matter solar lights are a great choice compared to low voltage landscape lights or fluorescent lights which operate poorly as the temperature drops. LEDs also have an average life span of 100,000 hours compared to 3,000 hours for the typical incandescent light. Solar lighting is an outstanding option for the home gardener and the do-it-yourselfer. There are many brands and types that should meet all of your outdoor lighting needs.

For more solar lights products information,  Visit  http://goldsolarlight.com/.

High Voltage Cable Types

Technology has evolved a great deal in the last 20 years, but with all the changes, the transfer of power in its purest form hasn’t changed all that much. There are three main high voltage cable types or functions that one can use, the same today as it was thirty years ago or more. While insulation standards have evolved to better protect against electricity leakage and deterioration, the uses are largely the same. If you plan to use a high voltage cable, it will more than likely be for one of the following uses:
Instrument cables
Electricity powered instruments are all around you in such abundance that you may not even be aware they are using any. Consider the following instrument options: clocks, chronometers, electrometers, voltmeters, and multimeters, all used for different forms of measurement, serve engineers and electricians every day in the support of infrastructure. Without high voltage cables to take care of these functions, it would be very difficult for society to grow at the pace that it has managed over the last 100 years. Many people don’t think about the use of cables in the functionality of these things, because they are seamless in how they work.
AC/DC power transmission Cable
Consider all the home entertainment technology that powers your fun and leisure these days. Without high voltage cables, it would be difficult to fire up and log on to the Internet. It would be impossible to use wireless devices for an extended length of time. Wifi Internet connections would be non existent, and all the amazing advancements that the World Wide Web has brought with it would be rendered moot. Lack of AC/DC power transmission would result in probably the most obvious awareness in the average person’s daily life. High voltage cables once again are there working seamlessly behind the scenes to bring out all these functions.
Ignition systems
The automobile has been in use for around 100 years now, and it has revolutionized the way people travel. Each year new makes and models of cars are coming out to deliver even more horsepower and quicker and more reliable travel. Without the use of high voltage cables, however, the entire world would still be traveling by inferior steam based power sources or by horse and buggy. Each time that you turn the key to start your engine, thank years of advancement in electrical technology for the convenience of your daily travel.
High voltage cables offer a high degree of functionality and use that you just cannot get through other forms of power. As technology continues to improve, high voltage power cables will continue to grow in importance. If you are looking to keep up with the times, then buy only the safest and most powerful.
An xlpe cable manufacturer can give you the power and connectivity that you need. For more information on the best high voltage cable manufacturer companies, visit our site today: www.qscable.com or www.huadongcable.com!

Basic information of Aerial bundled cable(ABC cable)

Aerial bundled cables (also aerial bundled conductors or simply ABC) are overhead power lines using several insulated phase conductors bundled tightly together, usually with a bare neutral conductor. This contrasts with the traditional practice of using uninsulated conductors separated by air gaps.

The main objections to the traditional design are that the multiple conductors are considered ugly, and external forces (such as high winds) can cause them to touch and short circuit. The resultant sparks have been a cause of bushfires in drier climates. In the UK where some supplies to rural property are converted to PME/MEN from TT Earthing system concerns have been expressed that the lower conductor alone may be broken, (by high vehicle or falling tree for example) but with the upper phase conductors intact. This is a potentially dangerous fault condition. With ABC, a simultaneous disconnection of all conductors is more likely.

In moister climates, tree growth is a significant problem for overhead power lines. Aerial bundled cables will not arc over if touched by tree branches. Although persistent rubbing is still a problem, tree-trimming costs can be reduced.

Areas with large trees and branches falling on lines are a problem for aerial bundled cables as the line degrades over time. Due to the very large strain forces cracking and breaking insulation can lead to short circuit failures which can then lead to ground fires due to dripping of molten insulation.

Aerial bundled cable Advantages

• Relative immunity to short circuits caused by external forces (wind, fallen branches), unless they abrade the insulation.
• Can stand in close proximity to trees and will not generate sparks if touched.
• Simpler installation, as crossbars and insulators are not required.
• Less cluttered appearance.
• Can be installed in a narrower right-of-way.
• At junction poles, insulating bridging wires are needed to connect non-insulated wires at either side. ABC can dispense with one of these splices.
• Less risk of a neutral-only break from tree or vehicle damage, increasing safety with TNC-s systems.
• Electricity theft is made harder, and more obvious to detect.

Aerial bundled cable Disadvantages

• Additional cost for the cable itself.
• Insulation degrades due to sun exposure, though the critical insulation between the wires is somewhat shielded from the sun.
• Shorter spans and more poles due to increased weight.
• Can lead to much longer repair times for installations in hilly areas due to much higher line weights requiring bigger and more specialized equipment to repair.
• Older installations are known to cause fires in areas where falling large trees or branches regularly cause breaks in lines and or in insulation leading to short circuits which can then lead to burning insulation dripping to ground and starting ground fires.

Information sorce from: http://en.wikipedia.org/wiki/Aerial_bundled_cable. For more ABC cable products (like duplex cable, triplex cable, quedruplex cable etc.) details, Please visit  htttp://www.qscable.com or http://www.huadongcable.com.

Effect of water on the properties of XLPE cable products

With the development of market economy, the increasingly fierce competition, the competition between enterprises in the final analysis is the competition of product quality and service. As everyone knows, the product quality is the life of enterprise, good product quality will enable enterprises to remain invincible in the market competition, is the source of enterprise sustainable development. High voltage XLPE cable (XLPE cable) as the main products of Huadong power cable limited company, its quality level will directly affect the success or failure of the company in the market competition.
The company since its inception, through the joint efforts of all staff, the quality of our XLPE cable is in a higher level, then mainly discusses the harm of water generated by the XLPE cable. XLPE cable inlet consists of water inlet and a sheath for conductor (including internal protection), water or moisture for cables for use in polymer materials, can produce hydrolysis, reducing the strength and softness of the material, the moisture is polymer adsorption, absorption and diffusion, the electrical properties of serious deterioration, the surface resistance, volume resistivity and the breakdown strength decreases, the capacitance and dielectric loss tangent increase; cable inlet, under the action of the electric field, the product will have water treeing phenomenon, the higher relative humidity, the higher the temperature, the higher the voltage, the ion containing more water, water tree growth is faster; of these, will lead to the shortening of product life, serious breakdown products in the short term.

XLPE cable in the production process of water mainly concentrated in two steps: step crosslinking process and sheath. In the crosslinking process, because the cable waterproof joint untreated good reasons leads to cross-linking insulated wire core inlet, water or moisture once into the insulated wire core, it is difficult to deal with, cross-linking wire cut only water, waste materials, increase the cost of delay in delivery, even in the cable; sheath production process, because the operator working responsibility heart is not strong or operational errors, caused by the cable head fell into the water in the traction cable or not good control of cable outer sheath thickness and eccentricity in the production process, resulting in the sheath hole after the water into the inside of cable, such as head of water will only head inlet cable cut, influence cable delivery meters; such as cable sheath hole due to water, it is difficult to deal with dry, use hairdryer blowing, it is difficult to dry, once the cable delivery, in actual operation, cable inlet become potential risks of safe operation of cables, may ultimately lead to the breakdown of the cable or return, the consequences are very serious. In addition, in the middle of a packaging and transportation also have cable inlet phenomenon, once the cable head not sealed or cable sheath damage due to storage and transportation, can also cause the cable end inlet, customers to accept.XLPE cable inlet influence on the quality of the products you already know, how to avoid the cable inlet is in front of us, we need every staff strict control, strengthen the sense of responsibility, improve the operation level, the strict implementation of various operating procedures, methods, to avoid quality problems cable inlet, improve product quality, to improve the company’s market share and lay a solid.
For more cable product information, Please visit www.qscable.com orwww.huadongcable.com.

Power Cable Manufacturers A Range Of Quality Production

Power cables are now a day available in a huge range. Power cables are available as per the uses in a variety of sizes, types and materials in the market. The major components required for the manufacturing of cables are insulation, conductor, protective jackets. The making of individual cables varies from application to application. An experienced power cable manufacturer consider some factors for determining the construction and material like the capacity to carry, working voltage, environmental conditions responsible for determining the composition and form of the cable jacket.

Within an overall sheath the assembly of two or more conductors held together is called power supply. Sometimes even plastic or metal sheath is used for enclosing the conductors. The electric power is transmitted through those assembly only. Power cable can be used in many ways like by running it overhead, buried in ground or as permanent wiring within the buildings. The large single insulated conductors are also known as power cables many a time.

Power cable accessories are required for the purpose for facilitating termination & joint whereas Electrical Power Jointing Kits helps in maintaining the continuity of long cables. A numerous manufacturing companies claims to produce the best quality electric power cables and jointing kits.

Small power cables use solid conductors. However Stranded aluminum or copper conductors are generally used by cables. Many a time uninsulated conductors are used for ground connection or circuit neutral. Whereas the materials used for making sheath for enclosing conductors are selected carefully. Only the materials which have the power to resist sunlight, water, oil, chemical vapors, high temperatures are taken into consideration.

Paper insulated lead covered (PILC) cables and Cross linked polyethylene ethylene (XLPE) cables are the two main competitors. XLPE cable have unique features like lighter weight, less maintenance, easier procedure for termination & jointing, better properties for both electrical as well as thermal which raises its demand and thus is gradually replacing PILC. However XPLE cables are widely used all over the world. The voltage range of PILC is from 1.1KV to 750KV AC.

Power Cable Jointing kits are another important accessories produced by Power Cable Manufacturer to maintain the continuity of cable especially of long length cables. A wide range of cable joints are manufactured now a day. A few points should be considered by the user while selecting an appropriate type of cable jointing system like site condition, voltage application, cable types and operating parameters. Pre-moulded, taped type, heat shrinkable and cold application are the few types of cable jointing kits available in the market.

UNDERGROUND VS OVERHEAD POWER LINES: WHICH IS BETTER?

When choosing between underground cables or overhead power lines, it’s important to know the advantages and disadvantages so you can better make an educated decision. Between the two, overhead electrical cables are more common and with good reason. Although some may consider them as an eyesore particularly in urban areas, in terms of cost they are three to four times less than an underground infrastructure.

Extra protection

Underground cabling may require additional insulation and cooling because the wires can overheat otherwise. Also, the wires will go the longer possible route between two lines, unlike overhead cables where the wires will just however above houses and buildings. When burying the wires in rocky areas for example, you need to clear the location with sharp and large boulders and fill it with soil to avoid damaging the cable. The reason it is quite expensive is because you need to install cable jointing structures every 500 meters as well as the extra insulation.

As already stated, electrical wires emit heat so they have to be kept away from marshes, bogs and the drainage. You also have to go around deeply rooted plants or buildings with deep foundations. It’s also not known if there’s an effect to the soil if the plastic sheathing on the cable wires have decomposed. Not to say that it’s not doable, however, as Singapore’s cable system is 100% underground.

Extra dangers

In contrast, overhead cables are very easy to maintain although the visual cacophony can be a challenge for urban areas. In an era where terrorism is a very real threat, conspicuous transformers and wires are very vulnerable to sabotage. The wires are also vulnerable to low-flying crafts or wayward birds, aside from external obstructions like extreme weather conditions which will cause shrinkage and stretching on the cables, snow which can accumulate on the wires, bush fires, and clearance or permit issues. A truck that smashes into the pole and damages it will also place undue stress to the transmission lines.

Government and states are advised to employ professional electrical reticulation services in order to minimise the risks. These companies specialising in overhead and underground electrification networks have a long experience in installing safety mechanisms to ensure that the system is insulated from unnecessary risks.

Shift to underground system

Because of the aforementioned risks of overhead cables, governments are seeing the advantages of choosing underground cable. Examples of countries using the underground system are The Netherlands, Berlin, London, Belgium and Singapore. France are also going in that direction, particularly after noting that in the year 2000, there were no deaths associated with underground wiring compared to the 19 deaths after getting into contact with overhead power lines

Underground cables are touted for their reliability and the cost of maintenance now is greatly decreased because of the available diagnostics so you can isolate the problem and you don’t have to dig through a large area. There are also few faults compared to the overhead system. Whether you need overhead cables or underground wiring, companies offering electrical reticulation services can meet your requirements.

Author knows the importance of electric power for home and business needs. Here he explains the difference between underground cabling and overhead power lines. For more information visit the links electrical reticulation services.

Erection hanging overhead cable

When laying hanging wire, you should first have a good choice of strand wire rack with a tray placed on the turntable device,
Then rotate the turntable to put line the shelves began to put the line:

Generally use the following three methods.

1. The hanging wire hanging wire resting on pole groove plywood inside and outside of the nut to tighten slightly, so as not to emerge hanging wire trunking for the degree, then you can use manual traction.

2 hanging wire on the poles and plywood between the nut, but in a straight line from the pole with all the tension every corner bar and turn on the 6 pole line (ie, outer corner pole), still the hanging wire on the inside groove plywood

3 wire cloth hanging on the ground first, then moved manually put on piecewise hanging wire nut between the poles and plywood (generally stick a fork). However, using this method must not make the hanging cord is damaged, do not hinder traffic, does not make the pole hanging wire can not be cited as the principle.

4 In the course of laying hanging wire should be possible to use the whole strand to reduce intermediate connector and ask in a bar file can not have more than one connector.

For more overhead cable information, Please visit www.qscable.com.