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LV switchgear and controlgear assembly

This workbook contains general information and proposals for designing, planning and building low voltage switchgear and controlgear ASSEMBLIES in compliance with the applicable laws, directives and provisions.

The standard IEC 61439 workbook (LV switchgear and controlgear assembly in practice)
The standard IEC 61439 workbook (LV switchgear and controlgear assembly in practice) – photo credit: Lanela Power Solutions LTD

Basic knowledge in electrical engineering is essential for planning low voltage switchgear and controlgear ASSEMBLIES.

This workbook includes general and special information which is essential for safe, reliable and economical low voltage switchgear and controlgear ASSEMBLY operation. In addition, the topics designed to protect people and assets are being dealt with.


How are ASSEMBLIES dimensioned?

ASSEMBLIES are dimensioned through the definition of interface values.

ASSEMBLIES are dimensioned through the definition of interface values
ASSEMBLIES are dimensioned through the definition of interface values

1) Connection to the electrical system


2) Electrical circuits and loads

  • Distribution circuits for load-side sub-distribution panels
  • Final circuits

3) Installation and environmental conditions

  • Indoor installations
  • Outdoor installations
  • Dimensions for transport and installation

4) Operating and servicing

Operation through:

  • Device activation
  • Access control

Safety

The new standard does not only precisely define the responsibilities of the market participants, but also specifies the dimensions of low-voltage
switchgear and controlgear ASSEMBLIES.

In addition it presents the possibilities and limits for the market participants in order to guarantee to the user safe low-voltage switchgear and controlgear ASSEMBLIES. It is also designed to specify the documentation required for low-voltage switchgear and controlgear ASSEMBLIES and/or the required verifications.

Which are the dimensioning specifications enabling design verification? One important aspect emphasised in the IEC 61439 is the earthing system as this has important consequences for planing the electrical circuits.

Title: The standard IEC 61439 workbook (LV switchgear and controlgear assembly) – ABB
Format: PDF
Size: 2.70 MB
Pages: 170
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The standard IEC 61439 workbook (LV switchgear and controlgear assembly in practice)
The standard IEC 61439 workbook (LV switchgear and controlgear assembly in practice)

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3 Comments


  1. Terrell G Thompson
    Jun 27, 2019

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  2. Raj bir singh
    Jun 25, 2019

    Conduiting , wiring , cable laying , cable tray , earring , panel installation , and viewing all electrical activity at site. calient handling vendor problem short out .


  3. Biju Krishnan
    Jun 25, 2019

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