Three Uses of Halogen Free Cables

16 12 2011

Halogen free cables are an integral component designed to offer users increased safety and protection. Used within a range of industries as well as inside our homes, these components are multi-purposeful and efficient.

Why halogen free?

All cables are enclosed within a plastic casing and plastics which contain halogen can be dangerous when exposed to high temperatures and heat, such as in fires. This is because the materials release a poisonous gas in these instances. If this gas comes into contact with water then hydrochloric acid is formed – making the situation extremely volatile and dangerous for those involved.

For this reasons, halogen free cables are becoming a standard component in a number of industries but especially those which are widely connected with the general public. This makes the uses of these types of cable extremely varied and diverse.

Uses of halogen free cables

• Rail travel: both rail and aircraft travel and construction use halogen free cables. The added safety benefits make this an essential component, helping to ensure the public are protected. As electrical fires and other faults can arise on these machines, using cables which will not exasperate the situation is vital.

• Public buildings: as these will be frequented by a number of individuals on a regular basis, ensuring public safety is paramount. For this reason, halogen free cables are often used as they can reduce the risk of damage in the event of a fire. These buildings will often have an extensive supply of cables and leads and therefore investing in these products is highly important.

• Electricals: the fast majority of electrical items will be connected via cables and leads and, therefore, the potential for damaging effects occurring during fires is high. Using halogen free cables for these products will reduce this risk and will help to lower the dangers posed to individuals. As these devices will be found throughout personal homes, places of work and public areas it is vital that they use the safest possible cables.

For further details regarding halogen free cables, visit www.challengercomponents.com





Cross flow fans and axial fans profile

5 12 2011

Cross flow fans are otherwise known as Tangential Fans or Tubular Fans. It is generally tubular in shape with its length being more important than its diameter.

The air flow is in the tangential direction to the fan itself and hence the alternate name. Due to this, these fans are generally more efficient than a number of their counterparts.

Cross Flow Fans work by improving the dissipation of the heat generated by other components through circulation.

If the nearby component is already cool or the humidity is particularly high then these fans are not likely to make much of an impact.

Its advantages are that it is compact and runs without much noise amongst other things. It is mostly used in air conditioners, heating and cooling equipment to dissipate the heat generated in these components.

These fans have adjustable speed controllers and are more suited to use inside other main components.

In contrast, axial fans consist of a rotating arrangement of blades which act on the air. Usually contained within a casing, the blades used force the air to move parallel to the shaft about which the blades rotate.

The name of this specific fan comes from its propensity to blow air along the fan, and they have many modern day applications.

Within the electronics industry specifically, they are used to for cooling certain items of equipment. This is a vital cog within the whole process of constructing and transporting electrical connectors for example.

The larger varieties of axial fans are seen in mechanisms such as wind tunnels. Smaller types can be used for all manner of electronics work.

Given the size of some wind tunnels, it gives you an idea of how large certain axial fans can actually be.

For additional details on both of the antistatic products mentioned above, as well as the benefits of static training, visit www.challengercomponents.com

 





What does your business need from a connector?

11 11 2011

A recent report from Global Industry Analysts suggests that developments in technology and a marked increase in the production of miniaturised microprocessors could potentially lead to a sustained growth within the electronics industry over the coming years.

A recent report from Bishop and Associates found that, on average over the last five years, worldwide administrations have consistently spent 2.7% of their gross domestic product (GDP) on military expenditures. This suggests that demand within the military sector for specialist connectors is likely to stay strong.

Demand for cable connectors is also expected remain strong in the near future. Analysts expect the worldwide market for the military/aerospace cable assemblies market to have grown by approximately 2% by the end of 2011, to a total value of approximately $12.9 billion.

Reliability is, of course, a major consideration to bear in mind, as is easy identification (very important when working on complex electrical circuits and systems) and how easily it can be connected to other devices.

Price will also be a huge factor for a number of companies considering the economic climate which we are all operating in at the moment.

You may also want the connector to meet specific needs as well, such as the ability to withstand high vibrations. Several connector manufacturers have recently stated their desire to hear more defined specifications from companies prior to constructing products, in order to meet client expectations as accurately as possible.

Challenger Components has 50 years experience in providing electrical components to a variety of industries. They use a variety of recognised and globally trusted suppliers such as Amphenol and ebm-papst to provide connectors, industrial fans/blowers and static control solutions to customers all over the world.

To learn more about the products Challenger can provide and the companies they are associated with, visit www.challengercomponents.com





A-Z of electrical components – Fans

18 10 2011

The principal aim of an axial fan is to provide a sustainable cooling solution. Due to the versatility of the product though, this can translate to a ceiling fan within a household as well as a large piece of machinery in a busy industrial factory.

Different customers require axial fans for different functions.  Those who wish a fan to be used in the home for example, may require the fan to produce minimal noise.

For those working within a factory this may not be an issue of any real consequence.

ebm-papst is a well known axial fan manufacturer, renowned for producing high quality, energy efficient products.

Ceiling fans, table fans, compact fans, computer cooling fans, motor vehicle cooling fans can all be axial fans, depending on the manufacturer.

Fans in vehicles such as cars usually prevent the car from overheating by discarding hot air produced by the combustion in the engine. 

The same thing applies to computers, where a fan is encompassed into the design of the product to prevent it from overheating.

How do they work?

The blades within axial fans force the air to a shaft in a parallel direction. The air is then blown along the axis of the fan to produce a continuous flow of air. 

The cooling intensity of the fan depends on how quickly the blades move, or are set to move.

Some axial fans are used in air conditioning applications, both for consumer purposes, and within the electronics manufacturing industry.

Axial fans come in a variety of sizes to accommodate all these different settings. However, standard diameters for axial fans range from 300-400 mm and 1800-2000 mm.

For additional details on axial fans, as well as number of other products available from ebm-papst and other manufacturers, visit www.challengercomponents.com





What is EC Technology?

23 09 2011

Find out more about EC technology, ebm-papst products and forthcoming EU regulations that will have a major impact on thermal management and electrical components in the near future.

Did you know that EC motors for fans consume on average about 30% less electricity than conventional AC motors? EC stands for Electronically Commutated which means it’s a fan with a permanent magnet motor (PMM).

EC motors have been around for many years and are more efficient than AC motors because they use permanent magnets rather than induce a secondary magnetic field in the rotor.

EU Regulations on Energy Efficient Fans

Launched as part of the European Union’s plans to reduce CO2 emissions by up to 20 percent by 2020, the Energy-related Products Directive (ErP) will have a significant impact on businesses that rely on many types of fans, especially industries such as refrigeration, IT manufacturing and air conditioning units.

The ErP Directive comes into force in two stages – in 2013 and 2015 – with stringent requirements for fans and their efficiency in the power range of 125 watts to 500 kilowatts.

There will be minimum efficiency requirements, which could see as many as 30 percent of all currently available fans failing to satisfy the new regulations. By 2015, when the second round of energy efficiency measures come into force, as many as 50 percent of the fans in operation today could no longer meet efficiency standards.

Fans and Blowers are commonly used in electrical power production, metal manufacturing, mining, food processing and any industrial setting which requires controlled conditions.

They can also be used as a low cost replacement for air conditioning, particularly where a commercial or industrial building requires a specific set temperature.

Blowers are usually used to exhaust foul air and replace it with fresh air while fans simply fan highly pressurised areas. There are number of different fans and blowers that are used for specific jobs. These include: axial fans; mixed flow or diagonal fans; radial fans and cross flow blowers.

Ebm-Papst EC Technology

One of the leaders in the production of energy efficient fans that meet the ErP Directive is Ebm-Papst. Ebm-Papst has developed GreenTech EC technology, which already exceed the 2015 ErP efficiency targets.

Their range of RadiCal EC fan systems are 50 per cent quieter than previous models and use 50 per cent less energy, too.

Challenger Components Ltd is the approved distributors for ebm-papst UK who have many years of experience in Thermal Management and Cooling Solutions, as well as fan and blower applications.

Visit: www.challengercomponents.com for more information and to discuss your requirements in more detail.





ebm-papst produces innovative technology for electrical fans

30 08 2011

Having been one of the market leaders in the creation of electrical fans and motors for some time, ebm-papst have now come up with EC technology. When compared to conventional fans with asynchronous motors, EC Technology achieves an efficiency of more than 90%.

That means energy consumption up to 50% lower compared to AC solutions. The speed of fans driven by EC technology can be controlled so that the air volume can be adapted to suit the specific requirements, which also results in further substantial energy savings.

The ‘In from the Cold 2010-2020’ strategy report has identified ways to potentially reduce energy consumption and lifecycle costs. The main ideas discussed included increasing the uptake of more efficient fan motors in all new equipment and as replacements in existing equipment.

It further identifies a strong role for MEPS in raising the efficiency level of the lowest performing units.

EC technology by ebm-papst will be able to meet future requirements.

ebm-papst currently offers an energy-efficient alternative in the shape of GreenTech EC technology. This not only meets but exceeds energy-efficiency requirements by some distance.

Thanks to the successful interaction of motor, electronics and aerodynamics, ebm-papst’s EC technology fans do not just convince with respect to their energy efficiency.

The fans also work extremely quietly thanks to their optimised commutation techniques and the aerodynamic configuration of the impellers. And on top of everything, they are also extremely reliable and durable.

Ebm-papst offer over 14,500 different products, all of which are designed to aid all air technology and drive engineering tasks.

For details of all the products available from Ebm-papst, as well as a number of other leading providers, visit www.challengercomponents.com





Axial fans – How many uses do they have?

29 07 2011

Axial fans consist of a rotating arrangement of blades which act on the air. Usually contained within a casing, the blades used force the air to move parallel to the shaft about which the blades rotate.

The name of this specific fan comes from its propensity to blow air along the fan, and they have many modern day applications.

The larger varieties of axial fans are seen in mechanisms such as wind tunnels. Smaller types can be used for all manner of electronics work.

Given the size of some wind tunnels, it gives you an idea of how large certain axial fans can actually be.

They are also regularly used for air conditioning and industrial process applications.

Within the electronics industry specifically, they are used to for cooling certain items of equipment. This is a vital cog within the whole process of constructing and transporting electrical connectors for example.

In fact the list of practical applications for axial fans and this very specific mechanism really is endless;

-Ceiling fans

-Table fans

-Variable pitch fans

-Computer cooling fans

Another one of the more interesting applications for a modern day axial fan is to use it within a vehicle. The most impact an axial fan will have is the ability to such air though a coolant filled radiator.

This ensures the engine does not overheat and anybody who drives knows how important that engine cooling facility can be.

It is usually powered by an electric fan which is, in turn, controlled by a thermostatic switch.

It should also be remembered that an axial fan is not the only option in this particular sphere. There are three main types of fans used for moving air.

Aside from axial fans, the other two are commonly known as centrifugal and cross flow fans.

 








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