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Database: 189760 (18 Oct 2025)
NB/T 20343-2021 English PDF
NB/T 20343: Evolution and historical versions
Standard ID
Contents [version]
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Standard Title (Description)
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NB/T 20343-2021
English
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(Specification for design and manufacture of reactor pressure vessel and reactor coolant system piping and equipment insulation for pressurized water reactor nuclear power plants)
Valid
NB/T 20343-2021
NB/T 20343-2015
English
439
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3 days [Need to translate]
Design and fabrication specification for the thermal insulation of reactor vessel and reactor coolant pipings and equipments of PWR nuclear power plants
Obsolete
NB/T 20343-2015
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Basic data
Standard ID
NB/T 20343-2021 (NB/T20343-2021)
Description (Translated English)
(Specification for design and manufacture of reactor pressure vessel and reactor coolant system piping and equipment insulation for pressurized water reactor nuclear power plants)
Sector / Industry
Energy Industry Standard (Recommended)
Classification of Chinese Standard
F69
Classification of International Standard
27.120.20
Date of Issue
2021
Date of Implementation
2021-07-01
Older Standard (superseded by this standard)
NB/T 20343-2015
Regulation (derived from)
National Energy Administration Announcement No. 1 of 2021
Issuing agency(ies)
National Energy Administration