This part of GB/T 16895 gives the requirements for initial inspection and periodic inspection of electrical installations. Through inspection and testing, Chapter 6.4 gives the requirements for the initial inspection of electrical installations, as far as possible to determine whether the relevant requirements of other parts of GB/T 16895 can be met, and put forward the requirements for the report of the initial inspection results. After the completion of new installations or the completion of renovation and expansion of existing installations, the initial inspection shall be carried out. Chapter 6.5 gives periodic inspections of electrical installations to determine as much as possible whether the installation and all its ancillary equipment meet the conditions of use, as well as the requirements for periodic inspection results reports. 6.