BS ISO 20806:2009

Superseded

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Mechanical vibration. Criteria and safeguards for the in-situ balancing of medium and large rotors

Available format(s)

Hardcopy , PDF

Superseded date

04-30-2012

Language(s)

English

Published date

07-31-2010

Publisher

British Standards Institution

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 In-situ balancing
5 Criteria for performing in-situ balancing
6 Safeguards
7 Measurements
8 Operational conditions
9 Reporting
Annex A (normative) - Precautions and safeguards for
                      specific machine types during
                      in-situ Balancing
Annex B (informative) - Example of an in-situ balancing
                        report for a boiler fan < 1 MW
Annex C (informative) - Example of an in-situ balancing
                        report for a large > 50 MW turbine
                        generator set
Bibliography

Defines procedures to be adopted when balancing medium and large rotors installed in their own bearings on site.

This International Standard specifies procedures to be adopted when balancing medium and large rotors installed in their own bearings on site. It addresses the conditions under which it is appropriate to undertake in-situ balancing, the instrumentation required, the safety implications and the requirements for reporting and maintaining records.

This International Standard can be used as a basis for a contract to undertake in-situ balancing.

It does not provide guidance on the methods used to calculate the correction masses from measured vibration data.

NOTE The procedures covered in this International Standard are suitable for medium and large machines. However, many of the principles are equally applicable to machines of a smaller size, where it is necessary to maintain good records of the vibration behaviour and the correction mass configurations.

Committee	GME/21/5
DevelopmentNote	Supersedes 03/306099 DC. (03/2005)
DocumentType	Standard
Pages	34
PublisherName	British Standards Institution
Status	Superseded
SupersededBy	BS ISO 21940-13:2012
Supersedes	03/306099 DC : DRAFT APR 2003 BS ISO 20806:2004

Standards	Relationship
ISO 20806:2009	Identical

ISO 10814:1996	Mechanical vibration Susceptibility and sensitivity of machines to unbalance
ISO 1940-1:2003	Mechanical vibration Balance quality requirements for rotors in a constant (rigid) state Part 1: Specification and verification of balance tolerances
ISO 2041:2009	Mechanical vibration, shock and condition monitoring Vocabulary
ISO 1925:2001	Mechanical vibration Balancing Vocabulary
ISO 19499:2007	Mechanical vibration Balancing Guidance on the use and application of balancing standards
ISO 2954:2012	Mechanical vibration of rotating and reciprocating machinery — Requirements for instruments for measuring vibration severity
ISO 10817-1:1998	Rotating shaft vibration measuring systems Part 1: Relative and absolute sensing of radial vibration
ISO 1940-2:1997	Mechanical vibration Balance quality requirements of rigid rotors Part 2: Balance errors

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BS ISO 20806:2009

Mechanical vibration. Criteria and safeguards for the in-situ balancing of medium and large rotors

Table of Contents

Abstract

Scope

General Product Information

International Equivalents

Standards Referencing This Book

Category

Subcategory