GB 7251.2-1997
Replaced
T/CES 031-2019
Active
Group standards
T/CES 031-2019 Low-pressure vacuum quick-switching electrical equipment
T/CES 031-2019 Low-pressure vacuum quick-switching electrical equipment
Price:
$ 20.00
Basic Information
Standard Code:
T/CES 031-2019
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Low-voltage distribution electrical equipment
ICS Name:
Low-voltage switchgear and controllers
Publish Date:
2019-08-21
Implement Date:
2019-08-24
Scope
Scope: This document specifies the classification, operating conditions, functional requirements, and performance indicators of low-voltage vacuum quick-conversion switchgear (referred to as "devices" in this document), as well as inspection methods, marking, packaging, transportation, and storage. The devices are suitable for extremely sensitive loads powered by AC rated voltage of 400V synchronous power supply. They are designed to complete the conversion under continuous operation of extremely sensitive equipment from the onset of voltage sags and short-term interruptions on the power supply side to the successful conversion to backup power supply. Main technical content: The formulation of this standard follows the principles of "uniformity, coordination, applicability, consistency, and standardization". It adheres to the principles of advancement, scientificity, rationality, and operability, and is based on technical standards such as "Low-Voltage Switchgear and Control Equipment Part 6-1: Multifunctional Electrical Conversion Switchgear" (GB 14048.11-2016). It is formulated in combination with the design and manufacturing experience of modern vacuum circuit breakers. It provides clear and actionable normative technical regulations for the design, inspection methods, marking, packaging, transportation, and storage of low-voltage vacuum quick-conversion switchgear in various units. This standard applies to low-voltage vacuum quick-conversion switchgear with AC rated voltage of 400V, which is used in power supply systems requiring continuous operation of loads. This standard focuses on the classification and naming of low-voltage vacuum quick-conversion switchgear, operating conditions, functional requirements, performance indicators, inspection methods, marking, packaging, transportation, and storage.
Development Information
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