to the 16th Edition IEE Regulations
   
   
   
 
 

chapter 5
Earthing

chapter 6
Circuits

Installation requirements and characteristics
  2.1 - Introduction 2.5 - Low voltage generating sets
  2.2 - Safety requirements [Part 1] 2.6 - Standards
  2.3 - Definitions [Part 2] 2.7 - Undervoltage
2.4 - Assessment of general
-------characteristics [Part 3]
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2.4.1 -  Introductions

Before planning and carrying out an electrical installation, thought must be given to factors affecting its effective operation, but some basic information will be needed concerning the supply system. The Electricity Supply Company will provide information concerning the number of phases, phase sequence and voltage of the supply. They will also give information as to the prospective short circuit current {3.7.2}. Details of the supply protection and the external earth fault loop impedance {5.3) for the site concerned will be given.

The installation designer will also need to consider other matters, such as the purpose of the installation, the external influences which may affect it {2.4.3}, the compatibility of its equipment {2.4.4} and its maintainability {2.4.5}.

 

 

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Extracted from The Electricians Guide Fifth Edition
by John Whitfield
Published by EPA Press Click Here to order your Copy

Click here for list of abbreviations