GB/T 16895.18-2010Electrical installations of buildings -- Part 5-51: Selection and erection of electrical equipment -- Common rules (English PDF)

Foreword

(Low-Voltage) Electrical Installations of Buildings consists of 5 parts; each part is divided into

several sub-parts.

--- Part 1.Fundamental principles, assessment of general characteristics, definitions;

--- Part 4.Protection for safety;

--- Part 5.Selection and erection of electrical equipment;

--- Part 6.Verification;

--- Part 7.Requirements for special installations or locations.

This Part is Part 5.Part 5-51 in selection and erection of electrical equipment.

This Part was drafted as per the rules specified in GB/T 1.1-2009 Directives for Standardization

- Part 1.Structure and Drafting of Standards and GB/T 20000.2-2009 Guidelines for

Standardization - Part 2.Adoption of International Standards.

This Part replaced GB/T 16895.18-2002 Electrical Installations of Buildings - Part 5.Selection

and Erection of Electrical Equipment - Chapter 51.Common Rules.

Compared with GB/T 16895.18-2002, the major technical changes of this Part are as follows.

--- Add more detailed content on the characteristics of requirements for selection and

erection of electrical under conditions such as AD1~AD8 and AE4~AE6 in Table 51A

(see Table 51A of this Edition);

--- Add 516 Measures related to protective conductor current (see 516 of this Edition);

--- Delete the original Annex A, and its content is listed in the newly added bibliography

(see Bibliography of this Edition);

--- Add Annex A to Annex E (see Annex A to Annex E of this Edition).

This Part equivalently adopted IEC 60364-5-51 (5th Edition) Electrical Installations of

Buildings – Part 5-51.Selection and Erection of Electrical Equipment – Common Rules

(English Version). Compared with IEC 60364-5-51.2005 (5th Edition), this Part has the same

clause and article numbers and the same technical contents, but the following editorial changes

have been made.

--- Use the decimal point symbol "." to replace "," that is used as decimal point symbol;

--- Delete the "Foreword" of the IEC standard;

Electrical Installations of Buildings – Part 5-51.Selection

and Erection of Electrical Equipment – Common Rules

510 Introduction