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  • PublisherCIBSE
  • Product CodeAM18.2
  • Number of pages80
  • Publication DateApr 2022
  • ISBN9781914543272

AM18.2 Medium voltage distribution: Equipment

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AM18.2 Medium voltage distribution: Equipment

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.The first part, AM18.1: Methods, introduced the basic principles and the common methods of medium voltage distribution. This second part, Equipment, explores in more detail the equipment necessary to deliver medium voltage supplies to buildings – cables, switchgear and transformers. Note: protective relays associated with the operation of circuit breakers and other protection equipment will be covered in the next part, AM18.3: Protection.

Parts already published:

  • AM18.1: Methods

Upcoming parts will include:

  • 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.