HG/T 4175-2011General technical requirements for instrument power supply systems in chemical plants (English PDF)
化工装置仪表供电系统通用技术要求
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
December 20, 2011
Implementation date
July 1, 2012
Scope
HG/T 4175-2011 is the English-translated version of 化工装置仪表供电系统通用技术要求.
HG/T 4175-2011 sets general technical requirements for the instrument power supply systems of chemical plants. It covers the configuration required of such a system, the requirements the system must meet, and the testing, inspection and maintenance provisions that go with it. What it applies to is the instrumentation power supply of chemical process plants. It quotes HG/T 20509-2000. It carries Chinese classification G97, and was issued by the Ministry of Industry and Information Technology as a recommended standard. Issued on 20 December 2011, it has applied since 1 July 2012.
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Document preview — HG/T 4175-2011
National Standard of the People's Republic of China
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- 2 Normative references
2 Normative references
HG/T 4175-2011 cites the following standards, which apply in full or in part through the references made to them in its clauses.
HG/T 20509-2000
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
HG/T 20509-2000
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