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ABB – Electrical Installation Handbook PART I
ABB – Electrical Installation Handbook PART I

Scope and objectives

The scope of this electrical installation handbook is to provide the designer and user of electrical plants with a quick reference, immediate-use working tool.

This is not intended to be a theoretical document, nor a technical catalogue, but, in addition to the latter, aims to be of help in the correct definition of equipment, in numerous practical installation situations.

The dimensioning of an electrical plant requires knowledge of different factors relating to, for example, installation utilities, the electrical conductors and other components; this knowledge leads the design engineer to consult numerous documents and technical catalogues.

This electrical installation handbook, however, aims to supply, in a single document, tables for the quick definition of the main parameters of the components of an electrical plant and for the selection of the protection devices for a wide range of installations.

Some application examples are included to aid comprehension of the selection tables.


Protection and control devices

The main definitions regarding LV switchgear and controlgear are included in the international Standards IEC 60947-1, IEC 60947-2 and IEC 60947-3.

Circuit-breaker

A mechanical switching device, capable of making, carrying and breaking currents under normal circuit conditions and also making, carrying for a specified time and breaking currents under specified abnormal circuit conditions such as those of short-circuit.

Current-limiting circuit-breaker

A circuit-breaker with a break-time short enough to prevent the short-circuit current reaching its otherwise attainable peak value.

Plug-in circuit-breaker

A circuit-breaker which, in addition to its interrupting contacts, has a set of contacts which enable the circuit-breaker to be removed.

Withdrawable circuit-breaker

A circuit-breaker which, in addition to its interrupting contacts, has a set of isolating contacts which enable the circuit-breaker to be disconnected from the main circuit, in the withdrawn position, to achieve an isolating distance in accordance with specified requirements.

Moulded-case circuit-breaker

A circuit-breaker having a supporting housing of moulded insulating material forming an integral part of the circuit-breaker.

Disconnector

A mechanical switching device which, in the open position, complies with the requirements specified for the isolating function.

Release

A device, mechanically connected to a mechanical switching device, which releases the holding means and permits the opening or the closing of the switching device.

Title:Electrical Installation Handbook PART I – ABB
Format:PDF
Size:1.5MB
Pages:168
Download:Right here | Get Download Updates | Get Technical articles
ABB – Electrical Installation Handbook PART I
ABB – Electrical Installation Handbook PART I

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Page edited by E.C. (Google).

9 Comments


  1. Benson
    Dec 26, 2013

    I cant find the way to download files from this website. Can someone please guide me with a step by step procedure. I am accessing this website from my mobile.

    • Edvard
      Edvard
      Dec 26, 2013

      Take a look at the table below title ‘Guide information’. There’s field named ‘Download’ and link ‘Right here’.

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    Sep 14, 2011

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