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Legislation
                                   
                                   
                                   

                                  Inspection and testing

                                   
                                   

                                  Part 6, chapters 61 to 63

                                  During testing, to ensure the regulation has been complied with, precautions shall be taken to avoid danger to persons, property and installed equipment.

                                   

                                  Residential Requirements

                                   
                                   

                                  Example
                                  The requirement for full inspection and testing has not changed, this should be carried out safely and by a skilled person. However, some details have changed and need to fully understood by the inspector.

                                  What it means
                                  Changes have been introduced such as: Inspection and testing Table 71A is now known as table 61.


                                  Minimum installation values changed to:

                                  • 0.5 MΩ Selv or Pelv at 250 volts
                                  • 1.0 MΩ for systems up to and including 500 volts with a test voltage of 500 volts.
                                  • For systems above 500 volts tested at 1000 volts the minimum is also 1.0 MΩ


                                  Solution
                                  Only a skilled person competent in such work should be used to conduct the inspection and testing. Proof of competence should be shown.

                                   

                                   
                                   

                                  Commercial Requirements

                                   
                                   

                                  Example
                                  The requirement for full inspection and testing has not changed, this should be carried out safely and by a skilled person. However, some details have changed and need to fully understood by the inspector.

                                  What it means
                                  Changes have been introduced such as:
                                  Inspection and testing Table 71A is now known as table 61.

                                  Minimum installation values changed to:

                                  • 0.5 MΩ Selv or Pelv at 250 volts
                                  • 1.0 MΩ for systems up to and including
                                    500 volts with a test voltage of 500 volts.
                                  • For systems above 500 volts tested at
                                    1000 volts the minimum is also 1.0 MΩ


                                  Solution
                                  Only a skilled person competent in such work should be used to conduct the inspection and testing. Proof of competence should be shown.

                                   

                                   
                                   
                                    
                                   
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                                  The 17th Edition explained...

                                  Read our bite-sized guides for a breakdown of the key changes within the 17th edition wiring regulations

                                  1. Scope of the BS7671:2008
                                  2. Definitions used in BS7671:2008
                                  3. Assessment of Characteristics
                                  4. Protection for Safety
                                  5. Erection of Equipment
                                  6. Inspection and Testing
                                  7. Special Installations
                                   

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