GB/T 24975.4-2010Guide of environmental design for low-voltage apparatus -- Part 4: Contact (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 4 of this section shall 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. Shanghai Electrical Apparatus Research Institute (Group) Co., Ltd., Beijing Electrical Machinery Industry Technology Research Institute of Economy, Changshu Switch Manufacturing Co., Ltd.

1 Scope

This section provides the basic principles of environmental aspects into contact product (hereinafter referred to as products).

This section applies to new or improved product design. This section applies the Contactors include AC contactors, DC contactors, household and similar purposes contactors, vacuum contactors, air conditioning and other contacts.

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, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section.

GB 14048.1 low-voltage switchgear and control equipment Part 1. General (GB 14048.1-2006, IEC 60947-1:2001, MOD) GB 14048.4-2003 Low-voltage switchgear and control equipment, electromechanical contactors and motor starters (IEC 60947-4-1.

2000, IDT)

GB 17885 household and similar purposes Electromechanical contactors (GB 17885-2009, IEC 61095:2000, 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 attention to the study GB 14048.1, GB 14048.4-2003 and GB 17885 the relevant requirements.

5 Basic principles of environmental aspects into product design and development