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NB/T 20321-2014Design and installation of electric heat tracing system for nuclear power plants (English PDF)

核电厂电伴热系统设计和安装

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Issued by

NEA

Level / Type

Industry · Recommended

Issue date

October 15, 2014

Implementation date

March 1, 2015

Scope

NB/T 20321-2014 is the English-translated version of 核电厂电伴热系统设计和安装.

The recommended energy industry standard NB/T 20321-2014 deals with electric heat tracing systems at nuclear power plants, giving the rules for their design, their installation and their maintenance.

Its provisions are written for the tracing of piping that carries boric acid, sodium hydroxide solution and other fluids of the kind found in these plants. The standard draws on GB/T 12788-2008 and GB/T 13286-2008, together with the nuclear quality assurance regulation HAF 003 (1991).

It replaces the earlier EJ/T 642-1992. The National Energy Administration placed it under Chinese classification F83 and international classification 27.120. Issued on 15 October 2014, it has applied since 1 March 2015.

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Document preview — NB/T 20321-2014

National Standard of the People's Republic of China

ICS: 27.120
Replacing: EJ/T 642-1992

Issued by: National Energy Administration of the People's Republic of China

1 Foreword

NB/T 20321-2014 was issued by National Energy Administration of the People's Republic of China on 15 October 2014 and has been in force since 1 March 2015.

2 Scope

The recommended energy industry standard NB/T 20321-2014 deals with electric heat tracing systems at nuclear power plants, giving the rules for their design, their installation and their maintenance. Its provisions are written for the tracing of piping that carries boric acid, sodium hydroxide solution and other fluids of the kind found in these plants. The standard draws on GB/T 12788-2008 and GB/T 13286-2008, together with the nuclear quality assurance regulation HAF 003 (1991). It replaces the earlier EJ/T 642-1992. The National Energy Administration placed it under Chinese classification F83 and international classification 27.120.

3 Normative references

NB/T 20321-2014 cites the following standards, which apply in full or in part through the references made to them in its clauses.

GB/T 12788-2008

GB/T 13286-2008

HAF 003(1991)

4 About this standard

Issued by: National Energy Administration of the People's Republic of China

English translation: about 20 pages

5 Classification and status

International classification (ICS): 27.120

Prefix NB/T: recommended standard.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 20 pages — is available in the English PDF.

Referenced standards

Normative references

HAF 003(1991)

Similar standards

NB/T 20108-2021|NB/T 25113-2020|NB/T 20070-2012|NB/T 20052-2011|NB/T 20028.2-2010|NB/T 20587-2021

Editions of NB/T 20321

Edition	Title	Revision	Status
NB/T 20321-2014	Design and installation of electric heat tracing system for nuclear power plants	current edition	Current
EJ/T 642-1992	Design and installation of electric heat tracing system for nuclear power plants	previous edition	Superseded

This page sells the current edition, NB/T 20321-2014. Earlier editions are listed for reference only.

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