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UNI ISO 21940-13 : 2012

Current
Current

The latest, up-to-date edition.

MECHANICAL VIBRATION - ROTOR BALANCING - PART 13: CRITERIA AND SAFEGUARDS FOR THE IN-SITU BALANCING OF MEDIUM AND LARGE ROTORS
Published date

22-11-2012

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

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

Committee
CT 2
DocumentType
Standard
PublisherName
Ente Nazionale Italiano di Unificazione (UNI)
Status
Current

Standards Relationship
ISO 21940-13:2012 Identical

ISO 13373-1:2002 Condition monitoring and diagnostics of machines — Vibration condition monitoring — Part 1: General procedures
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 1925:2001 Mechanical vibration Balancing Vocabulary
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

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