GB 7251.2-1997
Replaced
GB/T 19334-2021
Active
National standards
GB/T 19334-2021 Dimensions of low-voltage switchgear and controlgear—Standardized mounting on rails for mechanical support of switchgear,controlgear and accessories
GB/T 19334-2021 Dimensions of low-voltage switchgear and controlgear—Standardized mounting on rails for mechanical support of switchgear,controlgear and accessories
Price:
$ 75
Basic Information
Standard Code:
GB/T 19334-2021
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Low-voltage electrical equipment
ICS Name:
Low-voltage switchgear and controllers
Publish Date:
2021-10-11
Implement Date:
2022-05-01
Pages:
23 pages
Scope
This document specifies the corresponding dimensional and functional requirements for the installation of switchgear, control equipment, and electrical accessories on guide rails.
This document applies to standard installation rails used for mechanical support in switchgear and control equipment and their accessories.
The purpose of this document is to specify the relevant dimensions for the correct design of installation rails and electrical devices fixed on rails.
This document includes the following cross-sectional guide rails:
——"TH" type;
——"C" type;
——"G" type.
Note 1: Installation adaptability does not imply functional interchangeability.
The appendix specifies dedicated steel installation rails that meet the requirements of this document, along with corresponding dimensional data and application requirements.
Note 2: The design and materials of dedicated steel rails are detailed in the appendix.
Note 3: Other shapes of guide rails that comply with this document but are not listed in Appendix A may also be used.
For installation rails used as protective conductors connected to protective conductor terminals, the relevant requirements are specified in IEC 60947-7-2. For other applications where installation rails are used as grounding conductors, the relevant product standards apply.
This document serves as a horizontal standard and complies with the relevant provisions of IEC Guide 108:2006.
This document is primarily intended for use by technical committees in drafting standards in accordance with the principles specified in IEC Guide 108.
It is the responsibility of technical committees to draft publications in accordance with the relevant requirements of the horizontal standard. Unless explicitly referenced or included in relevant publications, the content of this document does not apply.
Development Information
Replace the following standards
Adopt standards
IEC 60715:2017(2.0版)
Related Standards
GB/T 11022-1999
Replaced
GB/T 11022-1999 Common specifications for high-voltage switchgear and control gear standards
GB/T 18858.1-2002
Replaced
GB/T 18858.1-2002 Low-voltage switchgear and control gear Controller-device interface(CDIs)—Part 1:General rules
GB/T 18858.3-2002
Replaced
GB/T 18858.3-2002 Low-voltage switchgear and control gear—Controller-Device interface(CDI)—Part 3:Device Net
GB/Z 18859-2002
Replaced
GB/Z 18859-2002 Enclosed low-voltage switchgear and controlgear Assemblies—Guide for testing under conditions of arcing due to internal fault
GB 14048.4-2003
Replaced