How to Download IEC 60439-2 PDF for Free
IEC 60439-2 is an international standard that specifies the particular requirements for busbar trunking systems (busways) that are used for low-voltage switchgear and controlgear assemblies. Busbar trunking systems are metal-enclosed prefabricated electrical distribution systems that consist of busbars, fittings, and accessories.
If you are looking for a way to download IEC 60439-2 PDF for free, you may be disappointed to find out that this standard is not available for free online. The official publisher of IEC standards is the International Electrotechnical Commission (IEC), which sells the PDF version of IEC 60439-2 for 352 Swiss francs (about 385 US dollars) on its website.
However, there are some alternative ways to access IEC 60439-2 PDF for free or at a lower cost. Here are some of them:
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Check if your organization has a subscription to an online standards database, such as GlobalSpec, IEEE Xplore, or SAI Global. These databases allow you to view and download various standards, including IEC 60439-2, for a monthly or annual fee.
Check if your local library has a copy of IEC 60439-2 in print or electronic format. You may be able to borrow it or request it through interlibrary loan.
Check if there are any free or open-source versions of IEC 60439-2 available online. Some websites may offer unofficial or outdated versions of IEC standards for free download. However, be careful about the quality and legality of these sources, as they may not comply with the latest revisions or regulations.
In conclusion, IEC 60439-2 is a useful standard for busbar trunking systems, but it is not easy to find it online for free. You may have to pay a high price to get the official PDF version from the IEC website, or you may have to look for other sources that may offer it for free or at a lower cost. However, always make sure that the source you use is reliable and legitimate.
Advantages of Busbar Trunking Systems
Busbar trunking systems have many advantages over traditional cable installations, especially for large-scale and complex power distribution projects. Some of the main benefits are:
Space-saving: Busbar trunking systems use less space than cable systems, as they have compact dimensions and can be installed in various orientations. This can save valuable floor and ceiling space, as well as reduce the fire load and fire risk.[^1^] [^2^] [^5^]
Flexibility: Busbar trunking systems offer flexibility in design and installation, as they can be easily adapted to different layouts and configurations. They also allow for easy and fast tap-off installation and modification, as they have multiple tap-off points along the trunking. This can reduce the need for junction boxes, cable trays, and conduits.[^1^] [^2^] [^3^]
Performance: Busbar trunking systems have high performance and efficiency, as they have low voltage drop, low impedance, low losses, and high short-circuit strength. They also have excellent heat dissipation, which can improve the thermal rating and lifespan of the system. They can also reduce electromagnetic interference (EMI) and harmonics, which can affect sensitive electronic equipment.[^1^] [^2^] [^3^]
Safety: Busbar trunking systems have high safety standards, as they are enclosed in metal casings that provide protection against mechanical damage, dust, moisture, and corrosion. They also have high degrees of protection (IP) against ingress of foreign objects and water. They can also prevent electric shock hazards, as they have no exposed live parts.[^1^] [^2^] [^4^]
Cost-effectiveness: Busbar trunking systems can reduce the overall cost of power distribution, as they have lower installation and maintenance costs than cable systems. They can also save on material costs, as they use less conductor material (especially if aluminium is used instead of copper) and less accessories. They can also save on energy costs, as they have lower losses and higher efficiency.[^1^] [^2^] [^5^]
In summary, busbar trunking systems are a space-saving, flexible, high-performance, safe, and cost-effective solution for power distribution. They can be used for various applications, such as industrial plants, data centers, commercial buildings, hospitals, airports, etc. They can also be integrated with other components of the power distribution system, such as transformers, switchboards, generators, etc. 29c81ba772
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