Inspection And Testing Of Electrical Installations – Chapter The Legal Requirements – Building Regulation Part P – Section Design, Installation, Inspection And – Testing – Section Extensions, Material Alterations And – Material Changes Of Use – Section Information About Other Legislation – Compliance With Building Regulations Part P – Earthing And Bonding To Comply With Part P – Registered Domestic Installer – Unregistered Competent Person – Diy Installer – Summary – Chapter Types Of Certifi Cation Required For The – Inspecting And Testing Of Electrical – Installations – Certifi Cation Required For Domestic Installers (Part P) – Minor Electrical Installation Works Certificate – Part P Domestic Electrical Installation Certifi Cate – Periodic Inspection, Testing And Reporting – Certifi Cation Required For The Inspecting And Testing – Of Installations Other Than Domestic – Minor Electrical Installation Works Certifi Cate – Electrical Installation Certifi Cate – Chapter Initial Verification Inspection – Initial Verifi Cation Testing – Sequence Of Tests – Periodic Inspection – Extent And Limitations – Visual Inspection – Contents – What Are We Looking For During A Periodic – Inspection? – Three Phase Circuits/Systems – Chapter Periodic Testing – Voltage Drop In Conductors – Testing Of Electrical Installations – Safe Isolation – Safe Isolation Procedure – Testing Of Protective Bonding Conductors .