16th Edition (reference only) – NOW superseded by the 17th Edition IEE Regulations.

chapter 5

chapter 6

Inspection and Testing
  8.1 - Introduction 8.5 - Insulation tests
  8.2 - Inspection 8.6 - Earth testing
  8.3 - Testing sequence 8.7 - Test instrument requirements
8.4 - Continuity tests 8.8 - Supporting paperwork

8.5.3 - Tests of barriers and enclosures

Throughout the Regulations reference is made to the use of barriers and enclosures to prevent contact with live parts (direct contact). If manufactured equipment's comply with the British Standards concerned, they will not need further testing, but where barriers and enclosures have been provided during erection of the installation, they must be tested. Full details of the IP classification system will be found in {Table 2.1}, but the two most common tests are for:

1. - IP2X - no contact can be made with a probe 12 mm in diameter and 80 mm long
   - in other words, a human finger

2. - IP4X - no contact can be made with a rod of diameter 1 mm.


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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