Foreword

Specification for construction quality checkout and evaluation of electric equipment installation is a series of standards for construction quality checkout，acceptance and evaluation of electric equipment installation.

The set of standards is comprised of the following 17 parts:

—Part 1:General rules；

—Part 2:High-voltage electric equipments；

—Part 3:Power transformers，oil-immersed type reactors and instrument transformers；

—Part 4:Busbar equipments；

—Part 5:Power cable lines；

—Part 6:Grounding devices；

—Part 7:Rotating electrical machines；

—Part 8:Panels，cabinets and secondary circuit wirings；

—Part 9:Batteries；

—Part 10:35kV and below over-head power line installation；—Part 11:Elevator；

—Part 12:Low-voltage apparatus；

—Part 13:Power converter equipments；

—Part 14:Cranes；

—Part 15:Electric equipments in explosive or inflammable hazardous environment；

—Part 16:1kV and under feeder cable engineering；

—Part 17:Electric lighting devices.

This part is the eighth part of the standard series，namely"Panels，cabinets and secondary circuit wirings"，which is prepared on the basis of Notice on project confirmation of Electric Power Industry Standard Preparation and Revision in 1997（Electric Power［1998］No.28）confirmed by State Economic and Trade Commission.

This part is the tabular form of GB 50171 Electric equipment installation engineering code for construction and acceptance of panels，cabinets and secondary circuit wirings and related national standards and industry-standard，which is an electric power industry standard applied to quality checkout of panels，cabinets and secondary circuit wirings.

This part is proposed by and under the jurisdiction of China Electric Power Construction Research Institute.

Chief Development Organization:

　　　　　　China Electric Power Construction Research Institute

Participating Development Organizations:

　　　　　　The First Thermal Power Construction Company of Henan

　　　　　　The First Engineering Company of Shandong Electric Power Construction

　　　　　　Jilin Province Power Construction Corporation

Chief Drafting Staff:

　　　　　　Zhou Nanrong　Wei Guozhu　Chen Guiying　Chen Fayu　Zheng Kai

　　　　　　Liu Zhiliang　Dong Gang

China Electric Power Construction Research Institute is responsible for the explanation of this standard.