GB 7251.2-1997
Replaced
T/ZZB 1576-2020
Active
Group standards
T/ZZB 1576-2020 Time Relay
T/ZZB 1576-2020
Price:
$ 20.00
Basic Information
Standard Code:
T/ZZB 1576-2020
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Control relay
ICS Name:
Low-voltage switchgear and controllers
Publish Date:
2020-04-30
Implement Date:
2020-05-30
Scope
Main technical content: This standard specifies the terms and definitions, basic requirements, classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage, and quality commitments of time relays. This standard applies to digital time relays (hereinafter referred to as relays) used in circuits with a rated AC voltage of 415 V or less, a frequency of 50 Hz or 60 Hz, and a DC voltage of 220 V or less for time control, indication, and other purposes.
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