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  • PublisherCIBSE
  • Product CodeAM18.1
  • Number of pages50
  • Publication DateMar 2022
  • ISBN9781912034987

AM18.1 Medium voltage distribution: Methods

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AM18.1 Medium voltage distribution: Methods

This Applications Manual on medium voltage distribution has been produced to help fill the gap in electrical knowledge in respect of how to safely employ medium voltage for the distribution of electrical power.

Our aim is to provide an understanding of a number of key aspects at different design and construction stages of a medium voltage (11 kV) power distribution system to buildings. Consideration is given to system design and to the selection and erection of equipment, including the associated practical aspects.

It is intended that this Applications Manual will be used by practitioners in conjunction with established international wiring standards and relevant codes of practice. It will also be of interest to designers and authorities who, while not directly concerned with the design or installation of electrical systems, must understand the advice offered to them by specialists.

Further, the manual should be of value to those who wish to enhance their knowledge of electrical power and building services engineering.

Medium voltage distribution is a specialised area of power engineering. This first part, Methods, introduces the basic principles; it also provides the most common medium voltage distribution techniques relevant to building services engineers. Upcoming parts will include:

  • AM18.2: Equipment
  • AM18.3: Protection
  • AM18.4: Fault calculations
  • AM18.5: Grading

These will explore protection devices and equipment in greater detail. They will provide typical application calculations and solutions for the protection of transformers, distribution cables, busbars, generators and motors, and will provide examples so that these calculations are clear.

This Applications Manual will not cover high voltage systems (that is, those using power supplies greater than 33 kV). This means that we will not go into any detail regarding transmission and distribution, or specialist power applications within the industry (such as the protection of power factor correction capacitors, harmonic snubber circuits, high-voltage direct current, high-power static conversion, battery storage or smart grids). For information regarding possible solutions to these applications, it is best to refer to manufacturers’ literature.