Article 1.0.2 The scope of application of this specification is the national general specification, that is, the national standard, according to the provisions of the original National Capital Construction Commission (79) SGZ No. 7 document. It is applicable to the engineering design of 10kV and below substations in industries such as industry, transportation, power, post and telecommunications, finance and trade, culture and education, and civil construction. All walks of life (i.e. all departments and regions