GB/T 7347-1987
Active
GB 4943.21-2019
Active
National standards
force_standard
GB 4943.21-2019 Information technology equipment—Safety—Part 21:Remote power feeding
GB 4943.21-2019 Information technology equipment—Safety—Part 21:Remote power feeding
Price:
$ 38
Basic Information
Standard Code:
GB 4943.21-2019
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
yes
CCS Name:
Health, safety, and labor protection
ICS Name:
Integrated Information Technology (IT)
Publish Date:
2019-12-31
Implement Date:
2020-07-01
Pages:
16 pages
Scope
This part of GB 4943 specifies the safety requirements for remote power supply communication circuits.
This part applies to information technology equipment that is intended to supply power to and receive power from communication networks, and whose voltage exceeds the TNV circuit limit values.
Development Information
Same series standard
Referenced Standards
Adopt standards
IEC 60950-21:2002
Related Standards
GB/T 7348-1987
Replaced
GB/T 7348-1987 The standard spectrum of whispered Chinese speech
GB/T 5271.3-1987
Replaced
GB/T 5271.3-1987 Data processing—Vocabulary—Section 03:Equipment technology (selected terms)
GB/T 5271.5-1987
Replaced
GB/T 5271.5-1987 Data processing—Vocabulary—Section 05:Representation of data
GB/T 1526-1989
Active
GB/T 1526-1989 Information processing—Documentation symbols and conventions for data, program and system flowcharts, program network charts and system resources charts
GB/T 12118-1989
Active