GB/T 16895.3-2017Low-voltage electrical installations -- Part 5-54: Selection and erection of electrical equipment -- Earthing arrangements and protective conductors (English PDF)

Foreword

GB/T 16895 Low-Voltage Electrical Installations can be divided into 5 parts, which may be

further 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.Acceptance;

--- Part 7.Requirements for Special Installations and Locations.

This Part is Part 5 of GB/T 16895.Part 5-54.Selection and Erection of Electrical Equipment.

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

This Part replaced GB/T 16895.3-2004 Electrical Installations of Buildings - Part 5-54.

Selection and Erection of Electrical Equipment - Earthing Arrangements, Protective

Conductors and Protective Bonding Conductors. Compared with GB/T 16895.3-2004, the

major technical changes of this Part are as follows.

--- Change the standard name into "Low-Voltage Electrical Installations – Part 5-54.

Selection and Erection of Electrical Equipment – Earthing Arrangements and Protective

Conductors".

--- Clarify the definition of protective conductors. When used for electric shock protection,

protective conductors include protective bonding conductors, protective earthing

conductors and grounding conductors. In order to avoid confusion between protective

conductors and protective earthing conductors, where protective conductors are

specifically referred to as protective earthing conductors, this Part uses protective

earthing conductors instead of protective conductors;

--- Add three examples of PEN conductor connection in the main switchboard;

--- Add Appendix C (Informative) "Erection of Concrete-Embedded Foundation Earth

Electrodes";

--- Add Appendix D (Informative) "Erection of Soil-Embedded Earth Electrodes".

This part used translation method to equivalently adopt IEC 60364-5-54.2011 Low-Voltage

Electrical Installations – Part 5-54.Selection and Erection of Electrical Equipment – Earthing

Arrangements and Protective Conductors.

The Chinese documents that have consistent correspondence with the international documents

cited in this Part are as follows.

--- GB/T 7251.1-2013 Low-voltage switchgear and controlgear assemblies - Part 1.General

rules (IEC 61439-1.2011, IDT)

--- GB/T 7251.12-2013 Low-voltage switchgear and controlgear assemblies - Part 2.Power

switchgear and controlgear assemblies (IEC 61439-2.2011, IDT)

--- GB/T 15544.1-2013 Short-circuit Current Calculation in Three-phase A.C. Systems -

Part 1.Calculation of Currents (IEC 60909-0.2001, IDT)

--- GB/T 21714 (all parts) [IEC 62305 (all parts)]

Compared with IEC 60364-5-54.2011, this Part has completely the same clause No., and

completely the same technical contents; however, it only makes the following editorial

modification.

--- Delete "Annex E" of IEC standard.

This Part was proposed by and under the jurisdiction of National Technical Committee on

Building Electrical Devices of Standardization Administration of China (SAC/TC 205).

Drafting organizations of this Part. China Aviation Planning and Design Institute (Group) Co.,

Ltd.; and China Electric Design Research Institute of MMI.

Participating drafting organizations of this Part. China Machinery International Engineering

Design & Research Institute Co., Ltd.; Machinery Industry Beijing Electrotechnical Institute of

Economic Research; and Siemens Ltd. China.

Chief drafting staffs of this Part. Liu Pingzhou, Su Biping, Ding Jie, Wang Zengyao, Li

Xianfeng, Zhu Shanshan, Li Feng, and Hu Hongyu.

The historical editions replaced by this Part are as follows.

--- GB 16895.3-1993, GB/T 16895.3-2004.

Low-Voltage Electrical Installations – Part 5-54.

Selection and Erection of Electrical Equipment –

Earthing Arrangements and Protective Conductors

541 General