NR RT/CE/PWSI/004 ISSUE 3 PDF

Introduction

A Glossary of terms and abbreviations used in this document is contained in Appendix A.

This instruction contains changes to previous requirements. These result from increased knowledge on the types of RCF, advice from world experts and analysis of data. This instruction contains changes with respect to the scope and frequency of inspection of RCF sites affected by rolling contact fatigue and the use of grinding as a routine method for the control of RCF.

This instruction contains new guidance on the use of the Sperry, RSU, roller search unit and the minimum actions that need to be applied if a flaw is discovered following U15 testing.

Additional information and guidance including photographs of types and categories of Rolling Contact Fatigue (RCF) can be found in RT/PWG/001, February 2001.