GB/T 14048.3-2017 Replaced National standards

GB/T 14048.3-2017 Low-voltage switchgear and controlgear—Part 3:Switches,disconnectors，switch-disconnectors and fuse-combination units

Publish Date: 2017-12-29 Implement Date: 2018-07-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 14048.3-2017

Standard Type: National standards

Standard Status: Replaced

is_force_gb: no

CCS Name: Low-voltage electrical equipment

ICS Name: Switch

Publish Date: 2017-12-29

Implement Date: 2018-07-01

Pages: 60 pages

Scope

This part of GB/T 14048 applies to switches, isolators, disconnect switches, and fuse combination devices in distribution circuits and motor circuits with a rated voltage of no more than 1,000 V AC or 1,500 V DC.
Manufacturers shall comply with the relevant standards for the combined fuses to specify the type, rating, and characteristics of the fuses.
This part does not apply to electrical appliances included in the scope of IEC 60947-2, IEC 60947-4-1, and IEC 60947-5-1; however, if the switch and fuse combination devices within the scope of this part are typically used for starting, accelerating, and/or stopping a single motor, they shall meet the additional requirements specified in Appendix A.
The requirements for three-pole switches with single-pole operation are included in Appendix C.
The auxiliary switches used in electrical appliances within the scope of this part shall meet the requirements of IEC 60947-5-1.
This part does not include additional requirements for explosion-proof electrical appliances.
Note 1: A switch (or isolator) can be referred to as a "rotary switch (or rotary isolator)" or a "cam switch (or cam isolator)" based on its structure.
Note 2: The term "switch" in this part can also refer to electrical appliances called "commutateurs" in French, which are used to change the connections between several circuits, particularly to replace one part of a circuit with another.
Note 3: In this part, switches, isolators, disconnect switches, and fuse combination devices are commonly referred to as "electrical appliances".
The purpose of this part is to specify:
a) The characteristics of electrical appliances.
b) The relevant conditions that electrical appliances should meet:
1) Operation and performance under normal use conditions;
2) Operation and performance under specified abnormal conditions (such as short-circuit conditions);
3)

Development Information

Word Count: 102 Thousand words Pages: 60 pages

Same series standard

GB/T 14048.5-2017 Low-voltage switchgear and controlgear—Part 5-1:Control circuit devices and switching element—Electromechanical control circuit devices GB/T 14048.13-2017 Low-voltage switchgear and controlgear—Part 5-3:Control circuit devices and switching elements—Requirements for proximity devices with defined behaviour under fault conditions(PDDB) GB/T 14048.22-2017 Low-voltage switchgear and controlgear—Part 7-4:Ancillary equipment—PCB terminal blocks for copper conductors

Replace the following standards

GB/T 14048.3-2008 Low-voltage switchgear and controlgear—Part 3:Switches,disconnectors,switch-disconnectors and fuse-combination units

Superseded by the following standards

GB/T 14048.3-2025 Low-voltage switchgear and controlgear—Part 3:Switches,disconnectors,switch-disconnectors and fuse-combination units

Referenced Standards

GB/T 2828.1-2012 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB 4824-2013 Industrial,scientific and medical(ISM) radio-frequency equipment—Disturbance characteristics—Limits and methods of measurement IEC 60050(441):1984 IEC 60050(441):1984/A1:2000 IEC 60269(所有部分) IEC 60417-DB:2002 IEC 60947-1:2007 IEC 60947-1:2007/A1:2010 IEC 60947-1:2007/A2:2014 IEC 60947-2:2006 IEC 60947-2:2006/A1:2009 IEC 60947-2:2006/A2:2013 IEC 60947-4-1:2009 IEC 60947-4-1:2009/A1:2012 IEC 60947-5-1:2003 IEC 60947-5-1:2003/A1:2009 IEC 61000-4-2:2008 IEC 61000-4-3:2006 IEC 61000-4-3:2006/A1:2007 IEC 61000-4-3:2006/A2:2010 IEC 61000-4-4:2012 IEC 61000-4-5:2014 IEC 61000-4-6:2013 CISPR 22:2008