to the 16th Edition IEE Regulations
   
   
   
 
 

chapter 5
Earthing

chapter 6
Circuits

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


8.8.1 - Why bother with paperwork?

When an installation is complete, including additions or alterations to an existing installation, the persons responsible for the work must report to the owner that it is complete and ready for service. This is in the form of an electrical installation certificate which must be separately signed to verify the design, the construction and the inspection and test aspects (see {8.8.2}) to confirm that the installation complies with BS7671.  Sometimes, the person ordering the work is not the user, in which case it must be ensured that the user has copies of the forms for inclusion in the installation manual.

This certificate will verify that the installation is safe to use and ready for service, and should be signed by a competent person who should preferably be one of the following:

1. - a professionally qualified electrical engineer, or

2. - a member of the ECA (Electrical Contractors' Association), or

3. - a member of the ECA of Scotland, or

4. - an approved contractor of the NICEIC (National Inspection Council for Electrical Installation       Contracting), or

5. - a qualified person acting on behalf of one of the above.

In all cases, the Certificates must state for whom the qualified person is acting. The installer should also compile an operational manual for the installation, which will include all the relevant data, including:

1. - a full set of circuit and schematic drawings,

2. - all design calculations for cable sizes, cable volt drop, earth-loop impedance, etc.

3. - leaflets or manufacturers' details for all the equipment installed,

4. - 'as fitted' drawings of the completed work where applicable,

5. - a full specification,

6. - copies of the electrical installation certificate, together with any other commissioning
--- --records,

7. - a schedule of dates for periodic inspection and testing,

8. - the names, addresses and telephone numbers of the designer, the installer, and the                    inspector/tester.

This requirement will be new to many electrical installation installers. Its rationale is to ensure that future owners or users of the installation, as well as those who maintain it or who may modify it, have full information. If difficulty is experienced in preparing the operational manual, reference to BS 4884 and to BS 4940, may be helpful.  Records of the results of all tests (in the form of Electrical Installation and Periodic Test and Inspection Certificates) should be kept, ideally with the Operational Manual, for the life of the installation.

 

 

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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