GB/T 24975.3-2010Guide of environmental design for low-voltage apparatus -- Part 3: Circuit breakers (English PDF)

Foreword

GB/T 24975 "low-voltage electrical Environmental Design" includes the following sections.

--- Part 1. General;

--- Part 2. Isolator;

--- Part 3. Circuit Breaker;

--- Part 4. contacts;

--- Part 5. Fuse;

--- Part 6. Button lights;

--- Part 7. Terminal.

This part of GB/T 24975 "low-voltage electrical Environmental Design" in Part 3. This section should be used in conjunction with Part 1.

This part by the Environmental Committee of the National Standardization Technical Electrical and Electronic Products and Systems (SAC/TC297) and focal points.

This section is drafted. Changshu Switchgear Manufacturing Co., Ltd., Shanghai Electrical Apparatus Research Institute (Group) Co., Ltd., Beijing Power Machinery Industry Engineering Technology Institute of Economic Research, Beijing ABB Low Voltage Electric Co., Ltd.

1 Scope

This section sets out the basic principles of environmental aspects into low voltage circuit breaker.

This section applies to new or improved product design.

This section applies to a circuit breaker includes a conventional circuit breaker (ACB), molded case circuit breaker (MCCB), miniature circuit breakers (MCB).

The purpose of this section is to the product design stage to control its impact on the environment.

2 Normative references

The following documents contain provisions which, through reference GB/T 24975 in this section constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, we are encouraged to reach agreement under this section all parties that proposed to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section.

GB 10963.1 electrical accessories for household and similar circuit breakers for overcurrent protection - Part 1. The circuit breaker for AC (GB 10963.1-2005, IEC 60898-1:2002, IDT) GB 14048.1 low-voltage switchgear and control equipment Part 1. General (GB 14048.1-2006, IEC 60947-1:2001, MOD) GB 14048.2-2001 Low-voltage switchgear and control equipment Part 2. Circuit Breakers (IEC 60947-2:1997, IDT) GB 18499 residual current protection for household and similar purposes (RCD) Electromagnetic Compatibility (GB 18499-2008, IEC 61543.

1995, IDT)

GB/T 24975.1-2010 Low-voltage electrical Environmental Design - Part 1. General

3 Terms and Definitions

GB/T 24975.1-2010 Chapter 3 apply.

4 Environmental aspects into consideration overall product design and development

GB/T 24975.1-2010 Chapter 4 apply. And pay attention to GB 14048.1, GB 14048.2-2001, GB 10963.1 phase Off requirements.

5 basic principles of environmental aspects into product development and